ProdCom 1.5.0: start ProdCom when it is offline, and turn its API on

ProdCom is a sandboxed Mac App Store app whose HTTP API lives inside it,
behind the UserDefaults switch applicationAPIEnabled — absent means off,
and a running ProdCom does not notice the switch changing; it reads it
at launch. So when the tile says "unreachable" on a booth where ProdCom
runs on the same Mac, there are two causes and two fixes: ProdCom is not
running (open it), or it is running with the API off (set the switch,
quit it, open it again).

The module's server now does both, behind two Admin switches, both on:
"Start ProdCom when it is offline" and "Restart ProdCom to turn its API
on". On a connection-level failure (never an HTTP answer) the supervisor
runs up to three attempts five seconds apart: not running → open -g -b;
running with the switch off → write it, read it back, ask ProdCom to
quit (Apple Event, SIGTERM after 5 s), open it again — at most once per
outage; running with the switch on → keep probing, and only blame the
port if that is still true on the third look, because a quitting ProdCom
still shows in pgrep. A successful run nudges the module to reconnect at
once. It gives up with a tile message until ProdCom answers again, and
does nothing at all for a ProdCom on another machine or off macOS.

The launcher gains the Apple Events entitlement and usage string so the
polite quit can be granted; if it is denied, SIGTERM does the job.

Verified live on the dev Mac against ProdCom 2.3.4: not running + switch
absent → opened, switch written, restarted, Live after two attempts; an
operator's Cmd-Q → reopened. 71 fake-driven tests (node --test), the OS
layer included through an injectable execFile.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

CLAUDE.md

@@ -52,6 +52,8 @@ title-bar controls). The rules that matter most:
   `node tools/slack-mock.js 24716` (Slack; run ProdDash with `SLACK_API_BASE=http://127.0.0.1:24716/api`).
   `node tools/pco-band-mock.js 24710` (Planning Center for Band Lineup; run ProdDash with `BAND_LINEUP_API_BASE=http://127.0.0.1:24710`).
   `node tools/ableset-mock.js 39071` (AbleSet over OSC/UDP; point the AbleSet module at `127.0.0.1:39071`; `--stopped`, `--no-live`, `--speed 4`).
+  `node tools/vista-midi-mock.js 5104` (a network MIDI / RTP-MIDI session for Vista Cues; point its first sender at `127.0.0.1:5104` and paste the cue sheet it prints; `--invite 127.0.0.1:5040` joins from its side, `--name`, `--channel`, `--every`, `--notes 2,23,8`).
+  `node tools/overflow-tap-mock.js` (ProPresenter slide notes on `127.0.0.1:1602` + the Overflow Dashboard API on `127.0.0.1:24720`; run ProdDash with `OVERFLOW_TAP_API_BASE=http://127.0.0.1:24720`, any email/password signs in; `--fail-switch`, `--expire=20`, `--login=<email>:<password>`).
 
 ## Reference code (read-only forks — don't develop these here)
 

README.md

@@ -316,10 +316,15 @@ below. Nothing is installed without someone clicking.
   name, load a named layout (it becomes a local copy — browsers are never
   linked), or reset this browser's dashboard. Loading says what it did —
   *Loaded "FOH": 9 tiles, 2 not shown — Service, #ops aren't offered right
-  now* — with **Undo** in the message to get back the arrangement you had.
-  A tile whose module or picker entry isn't offered at the moment keeps its
-  place and shows nothing, then appears when it is; it is never replaced by
-  the module's default tile. Saving over an existing name asks first, and
+  now; the Layouts menu can remove them* — with **Undo** in the message to
+  get back the arrangement you had. A tile whose module or picker entry
+  isn't offered at the moment keeps its place and shows nothing, then
+  appears when it is; it is never replaced by the module's default tile.
+  While any tile is in that state the same menu has a **Not shown** section
+  listing each one with why — *not offered right now*, *module disabled*,
+  *module not installed* — and a ✕ that removes it and frees its cells, for
+  the tile that is not coming back (a module that stopped offering that
+  kind of tile). Saving over an existing name asks first, and
   the server keeps the copy it replaced: **Restore previous** in Admin →
   Saved layouts swaps it back (and swapping again undoes that). The menu's
   **Grid Size** stepper sets how many columns this browser cuts the board into —
@@ -353,7 +358,13 @@ below. Nothing is installed without someone clicking.
   at ProdCom (the tile's bottom edge lights up in the accent color), and the
   channel the text goes out *as* is picked from their Send as menu — only
   channels ProdCom lets text be typed onto are offered.
-  Admin config: ProdCom server (host : port), API key.
+  Admin config: ProdCom server (host : port), API key, and two switches for
+  a ProdCom on this Mac (macOS only): **Start ProdCom when it is offline**
+  opens it when it isn't running (up to three tries, five seconds apart), and
+  **Restart ProdCom to turn its API on** turns the Application API on and
+  restarts ProdCom when it was running with the API off — ProdCom reads that
+  switch only at launch, so the restart costs about ten seconds without
+  intercom. Neither does anything for a ProdCom on another machine.
   Tile settings: channel icons, direction and timestamps.
 - **ProPresenter** — what's live and what's next, with slide progress,
   driven by the shared `propresenter-core` client (ProPresenter 7/20).
@@ -361,8 +372,8 @@ below. Nothing is installed without someone clicking.
   the live item alone with the gradient filling the tile edge to edge — a
   wall panel that says one thing.
   Admin config: ProPresenter endpoint (host : port), password.
-  Tile settings: a **Show** group of switches for the playlist name, live
-  status, NOW and NEXT labels, slide count, progress bar, the next list and
+  Tile settings: a **Show** group of switches for the playlist name, audience
+  look, NOW and NEXT labels, slide count, progress bar, the next list and
   its item tags, plus tidy titles.
 - **Timers** — live ProPresenter timers (countdown, countdown-to-time,
   elapsed), the **video countdown** (time left on what ProPresenter is
@@ -403,10 +414,23 @@ below. Nothing is installed without someone clicking.
   and part, as in `260927 Where is Your Faith? - Part 6` — is taken as the
   message and lands on the plan's message item (an item titled Message,
   Sermon or Teaching, else the first item under such a header). Admin
-  config is the connection: Planning
-  Center credentials (Personal Access Token app ID + secret, or an OAuth
-  token), the service type (a list grouped by your Planning Center folders)
-  and an optional pinned plan. Everything about the display is per tile
+  config is the connection: Planning Center credentials (Personal Access
+  Token app ID + secret, or an OAuth token), the service types to follow (a
+  list grouped by your Planning Center folders) and an optional pinned plan.
+  **Tick as many service types as you like** — the module follows whichever
+  of them has a plan soonest, so a campus running Sunday mornings, a
+  Wednesday night and a youth service needs one dashboard, not three. The
+  ticked types are **numbered in priority order**, nudged up and down with
+  the arrows beside them, and that order decides the winner when two of them
+  have a plan at the same date and time. Every tile's title bar then carries
+  a **service-type control** for reading one of the others: pick a type and
+  every PCO Plan tile on *that* browser's dashboard — plan, teams and song
+  key together — moves to its plan, marked with an amber stripe, while the
+  machine goes on following the live one. The choice is that browser's
+  alone, it sticks until changed, and the control hides itself when only one
+  service type is ticked. Live machinery belongs to the followed type:
+  another type's plan shows its running order without the now marker, the
+  service clock or AbleSet. Everything about the display is per tile
   (gear menu): the top-bar text (placeholders such as
   `{series} • {part} | {serviceType} • {date}`), colors, text size, and a
   show/hide checklist for every detail.
@@ -497,17 +521,57 @@ below. Nothing is installed without someone clicking.
   read from the account), and a folded **Timing** group for the poll
   intervals and a position trim.
   Tile settings: cue name, previous cue, playhead, cue list.
+- **Overflow Tap** — what Overflow's own "ProPresenter Integration" helper
+  app does, inside ProdDash, speaking the same Dashboard API it does: the
+  live slide's notes are read from ProPresenter (the presentation layer and
+  the announcement layer), and when they carry one of the keywords mapped in
+  the Overflow Dashboard, Overflow is told — and points that keyword's Tap
+  groups at its destination, so a tap on a disc follows what is on screen.
+  A slide with no keyword changes nothing. Keywords match as the helper
+  matches them: as a whole word of the notes, any case, punctuation around
+  it ignored (`give` fires on "Give!" and not on "forgiveness"). The tile is
+  one keyword, big: what Tap is on, its destination and the groups moved, a
+  chip saying whether the slide on screen carries a keyword, and the last
+  four switches with their times. How a switch went is the corner dot's
+  job: a switch Overflow refuses is retried three times with the dot left
+  alone, and only when those are spent does the dot go red (hover it for
+  the reason) and, if switched on in admin, an alert channel flash. Admin
+  config: the ProPresenter endpoint and an
+  **Overflow Dashboard login** (email and password; Google sign-in has no
+  password, so set one with "Forgot Your Password?"). The keywords, their
+  destinations and their Tap groups stay where Overflow keeps them —
+  Integrations › ProPresenter › Keyword Mappings in the Dashboard — and are
+  read from there on start, every few minutes, and on the tile's refresh
+  button. Tile settings are four switches: destination, groups, slide
+  match, history.
 - **Band Lineup** — the backstage stage board: everyone on stage in their mic
   slot with photo, name and mic/pack label, on one shared board that every
   screen sees the same way — whoever edits it changes it everywhere, over SSE.
   A photo library fills it: point the module at a Google Drive folder shared
   "anyone with the link" (file name → person's name) or at a folder on the
   ProdDash machine, and photos added or removed there follow. **Edit** in the
-  title bar opens that library — drag a photo onto a slot, drag between slots
-  to swap, rename or clear. Planning Center is optional auto-fill on top, not
-  the source of truth: **Sync** reads the upcoming plan's team members and
-  drops each into the slot matching their position, filling only slots nobody
-  placed by hand, so a guest pinned on Thursday survives Sunday's sync.
+  title bar opens that library — the spots pinned on top, the photos (with a
+  name search) scrolling below — drag a photo onto a slot (mouse, or press and
+  hold on a touchscreen), drag between slots to swap, rename or clear.
+  Dropping a photo onto the person already in a spot makes it *their* photo
+  for that instrument (a nickname like "Rose" for Rosaliz counts): they keep
+  their Planning Center name and spot, and every later Sync uses it whenever
+  they are on that instrument.
+  Planning Center is optional auto-fill on top, not the source of truth:
+  **Sync** reads the upcoming plan's team members and places each one. A
+  person whose Planning Center note names their mic ("Mix 8, VOX 5") goes to
+  that slot — this is how the leader and vocalists, whose position is just
+  "Vocalist", land on the right mic — and everyone else goes to the slot
+  matching their position, one slot per person. Photos come from the library
+  whenever it has one of them, and Planning Center's headshot only when it
+  has none. Someone who plays more than one thing can have a photo per
+  instrument, named `Name - Instrument` (`DJ - Drums.jpg`, `DJ - Vocals.jpg`;
+  Vox/Vocals, Keys/Piano, Drums, Bass, Guitar/Electric/Acoustic, Leader), and
+  a plain `DJ.jpg` for everything else: Sync uses the one for the spot they
+  are in that week. A photo dropped onto someone is remembered for that
+  instrument only. Anything placed or moved by
+  hand for that plan stays put through later syncs; last week's people are
+  replaced.
   Birthdays in the service week (Wednesday→Tuesday) bring a gold glow and
   raining confetti, and a Choir button adds the extra spot for the weeks there
   is one. Admin config: Planning Center credentials, service type and plan, the
@@ -532,6 +596,36 @@ below. Nothing is installed without someone clicking.
   soon as it does) and **Marks** (how long a mark lives).
   Tile settings: campuses, card or list layout, and a **Show** group for the
   day, role, resi source, campuses fed, notes and the updated line.
+- **Vista Cues** — which Vista 3 cue lists are live, for a booth where
+  nobody runs lighting and ProPresenter and the tracks rig fire Vista's cue
+  lists over network MIDI. Vista sends no feedback of any kind (its OSC only
+  takes commands), so the module listens instead: it joins the senders'
+  network MIDI sessions as one more participant, the way Vista does, hears
+  every note Vista hears, and turns each one into "Go on Walk-in", "Release
+  Worship 1"… from the cue sheet pasted into admin. The tile shows the list
+  fired last, large, with how long ago and who fired it; the other lists
+  still live; the recent notes; and which senders are connected. What it
+  shows is what Vista was *told*: if Vista is closed or someone works the
+  desk by hand, the two can differ, and the title bar's eraser forgets every
+  live list. Plain JavaScript (RTP-MIDI over UDP), no helper; on macOS it
+  advertises itself over Bonjour so it shows up in Audio MIDI Setup's
+  Directory. Admin config: up to three senders (a name, and the host and
+  port of each machine's network session — ProPresenter, the tracks rig,
+  Companion; ProdDash keeps inviting itself in, so each session's "Who may
+  connect to me" must be Anyone, or connect from the sender's Directory
+  instead), the cue sheet (one line per note: `0 = Pre Service`,
+  `61 release Walk-in`, `127 release all`, `30 flash Blinder Flash 1` for a
+  momentary hit, also pause, back, note names, a channel, program changes),
+  middle C naming, whether a Go releases the others, and a folded **This
+  machine** group for the session name, port (UDP 5040 and 5041) and
+  Bonjour. A sheet with no release notes uses groups: a line `[Color]`
+  starts one, a Go in a group replaces that group's live list, and the
+  first group is the tile's headline — so the tile reads "Message" with
+  Color · Blue and House · House Lights Message beside it. A Go in that
+  first group (the main scene) takes over the look and clears the rest, as
+  Vista's last-takes-precedence does; FX fired after it layer on again
+  (the **Main group takes over** switch). Tile settings: other lists,
+  recent, senders, unmapped notes — text size is − / + in the title bar.
 - **Clock** — a big booth clock; also the smallest possible module and the
   reference for module authors.
 
@@ -547,8 +641,18 @@ timers + timecode on `127.0.0.1:1600`), `node tools/pco-mock.js`
 run ProdDash with `SLACK_API_BASE=http://127.0.0.1:24716/api`) and
 `node tools/pco-band-mock.js 24710` (Planning Center for the Band Lineup
 board — a plan, its team members, birthdays and photos — run ProdDash with
-`BAND_LINEUP_API_BASE=http://127.0.0.1:24710`). See the testing section of
-the [module guide](docs/MODULE-GUIDE.md).
+`BAND_LINEUP_API_BASE=http://127.0.0.1:24710`) and
+`node tools/vista-midi-mock.js 5104` (a network MIDI session playing a cue
+sheet's notes, as ProPresenter does for Vista — point Vista Cues' first
+sender at `127.0.0.1:5104` and paste the sheet it prints) and
+`node tools/overflow-tap-mock.js` (a ProPresenter whose slide notes carry
+keywords on `127.0.0.1:1602`, announcement layer included, plus the Overflow
+Dashboard API on `127.0.0.1:24720` — run ProdDash with
+`OVERFLOW_TAP_API_BASE=http://127.0.0.1:24720` and sign the module in with
+any email and password; `--fail-switch` refuses every switch,
+`--expire=20` makes sessions expire, `--login=<email>:<password>` accepts
+one login only). See the testing section of the
+[module guide](docs/MODULE-GUIDE.md).
 
 ## Install as a desktop web app
 

docs/MODULE-GUIDE.md

@@ -222,7 +222,9 @@ Both schemas map field names to specs:
   "help": "One line shown under the control",         // optional, admin config only
   "options": [ { "value": "a", "label": "A", "group": "Optgroup" }, … ],  // "select" only
   "optionsRoute": "/devices",                         // "select" only, admin config only
-  "optionsDependsOn": "<other key>"                   // with optionsRoute; see below
+  "optionsDependsOn": "<other key>",                  // with optionsRoute; see below
+  "orderable": true,                                  // "multiselect", admin config only
+  "addLabel": "Add a service type…"                   // with "orderable"; the dropdown's own line
 }
 ```
 
@@ -242,8 +244,22 @@ marked, so nothing is dropped behind anyone's back. In a tile's gear popover
 it also takes `columns` (2–4) and `allByDefault: true`: a tile that has never
 chosen shows every option on and saves nothing until someone flips one, so
 options that turn up later are on as well (give it no `default` then).
+A `multiselect` with **`orderable: true`** stops being a ticklist. It renders
+as a list built on purpose — the picks, numbered in their saved order, each
+with a nudge either way and a remove — over a dropdown (`addLabel` names it)
+holding everything not picked yet, `group` and all. The array is stored in
+that order, so a module can read it as a priority. It is for a setting whose
+ORDER means something, and it is also what to reach for when the list is long:
+an account with forty service types is forty switches to read past, but one
+dropdown and two picked rows. `pco-plan`'s service types are the worked
+example — several are followed, and when two of them have a plan at the same
+moment the one higher up wins. Admin config only; the tile gear's own
+multiselect ignores it.
+
 `select` and `multiselect` may use `optionsRoute` in `instanceSchema` too —
 the popover GETs `/api/modules/<id><optionsRoute>` like the admin page does.
+`optionsDependsOn` follows any field, not just a select: a multiselect hands
+its values over comma-joined.
 
 `template` (tile settings) is a text with placeholders, built by dragging or
 clicking the variables the module offers into it: `"variables": [ { "value":
@@ -672,8 +688,11 @@ module.exports = {
   tile added from an entry only when that entry (or one of its `aliases`) is
   in your list right now; otherwise the tile keeps its place in the layout,
   draws nothing, and appears the moment your list offers it again — a
-  Service timer waits for PCO Plan, a transcript for its channel. So your
-  client is never asked to render an entry you did not offer at mount time.
+  Service timer waits for PCO Plan, a transcript for its channel. The
+  operator can remove such a tile from the Layouts menu's **Not shown**
+  section, so an entry you retire for good (a send box that moved to another
+  module) leaves no dead cells behind. So your client is never asked to
+  render an entry you did not offer at mount time.
   One case is still yours: an entry that vanishes *after* the tile mounted
   (a timer deleted in ProPresenter mid-service). Render nothing for it — no
   placeholder, no error — and the shell folds the tile away at its next
@@ -1028,7 +1047,8 @@ client-side failures (a tile that fails to start says so in the tile).
 
 **Poke the pieces directly:**
 
-- `GET /api/modules` — what the shell sees (your manifest + non-secret config).
+- `GET /api/modules` — what the shell sees (your manifest + non-secret
+  config; `inactive` names the installed modules that are not running).
 - `GET /api/modules/<id>/...` — your routes, `curl`-able. For SSE:
   `curl -N http://localhost:24500/api/modules/<id>/stream`.
 - `GET /api/admin/state` — enabled flags, health, mount errors.

launcher/macos/Resources/Info.plist

@@ -33,6 +33,8 @@
 	     verbatim, so they say what ProdDash does with each permission. -->
 	<key>NSMicrophoneUsageDescription</key>
 	<string>ProdDash reads an audio input on this Mac to decode SMPTE LTC timecode for the Timers module.</string>
+	<key>NSAppleEventsUsageDescription</key>
+	<string>ProdDash asks ProdCom to quit and relaunches it when its Application API has been switched off.</string>
 	<key>NSLocalNetworkUsageDescription</key>
 	<string>ProdDash connects to production gear on this network — ProdCom, ProPresenter and anything else its modules are pointed at.</string>
 	<key>NSBonjourServices</key>

launcher/macos/Resources/ProdDash.entitlements

@@ -6,5 +6,10 @@
 	     the hardened runtime that needs saying out loud. -->
 	<key>com.apple.security.device.audio-input</key>
 	<true/>
+	<!-- The ProdCom module asks ProdCom to quit (an Apple Event) before it
+	     relaunches it with its API on; without this the hardened runtime
+	     refuses the event outright. -->
+	<key>com.apple.security.automation.apple-events</key>
+	<true/>
 </dict>
 </plist>

modules/band-lineup/client.js

@@ -1,5 +1,5 @@
 // Band Lineup — client. Renders the shared stage board from /state + /stream.
-// The Edit button opens an editor: an uploaded-photo library you drag (or click)
+// The Edit button opens an editor: an uploaded-photo library you drag (or tap)
 // into slots, plus rename / clear / upload / delete. Edits go to the server and
 // come back over SSE, so every Band Lineup screen stays in sync. Birthday week
 // (Wed→Tue) rains confetti.
@@ -14,26 +14,108 @@ export default function create({ root, moduleApi }) {
   let selectedLibId = ''; // click-to-place fallback for touch
   const canvases = new Set();
   let raf = null;
-  // Auto-scroll the editor while dragging a photo (native DnD won't do it reliably).
-  let dragScrolling = false;
-  let dragY = 0;
-  let dragBody = null;
-  let dragRaf = null;
-  function startDragAutoScroll() {
-    if (dragRaf) return;
-    const tick = () => {
-      if (!dragScrolling || !dragBody || !dragBody.isConnected) { dragRaf = null; return; }
-      const r = dragBody.getBoundingClientRect();
-      const zone = 90; // generous edge band so you don't have to be pixel-accurate
-      let dy = 0;
-      if (dragY < r.top + zone) dy = -Math.ceil((r.top + zone - dragY) / 4) - 3;
-      else if (dragY > r.bottom - zone) dy = Math.ceil((dragY - (r.bottom - zone)) / 4) + 3;
-      if (dy) dragBody.scrollTop += dy;
-      dragRaf = requestAnimationFrame(tick);
-    };
-    dragRaf = requestAnimationFrame(tick);
+  /* ---------- drag (pointer events: one path for mouse, pen and touch) ----------
+   * Native HTML drag-and-drop never fires for a finger, drops onto a card's child elements
+   * flicker, and a board update arriving mid-drag rebuilt the editor out from under it. This
+   * drives the drag by hand instead: a mouse drags as soon as it moves; a finger holds still for
+   * a moment first (so a quick swipe still scrolls the editor). A floating copy of the photo
+   * follows the pointer, the spot under it lights up, and the editor auto-scrolls near its
+   * edges. Board updates that arrive during a drag wait until it ends. */
+  const DRAG_MOVE_PX = 6;
+  const TOUCH_HOLD_MS = 220;
+  let drag = null;          // { kind: 'lib'|'slot', id, body, ghost, over, x, y, raf }
+  let pending = null;       // a pointerdown that may become a drag
+  let renderHeld = false;   // a state update arrived mid-drag; render when it ends
+
+  function slotUnder(x, y) {
+    const hit = document.elementFromPoint(x, y);
+    const cell = hit && hit.closest ? hit.closest('.bl-edit-slot') : null;
+    return cell && root.contains(cell) ? cell : null;
   }
-  function stopDragAutoScroll() { dragScrolling = false; if (dragRaf) { cancelAnimationFrame(dragRaf); dragRaf = null; } }
+  function beginDrag(p) {
+    const ghost = el('div', 'bl-drag-ghost');
+    ghost.dataset.module = 'band-lineup'; // lives on <body> (above every tile), so it carries its own scope
+    const src = p.source.querySelector('img');
+    if (src) { const img = document.createElement('img'); img.src = src.src; img.alt = ''; ghost.appendChild(img); }
+    else ghost.textContent = p.label || '';
+    document.body.appendChild(ghost);
+    drag = { kind: p.kind, id: p.id, body: p.body, ghost, over: null, x: p.x, y: p.y, raf: null, source: p.source };
+    p.source.classList.add('bl-dragging');
+    root.classList.add('bl-is-dragging');
+    moveDrag(p.x, p.y);
+    const tick = () => {
+      if (!drag) return;
+      // Auto-scroll whichever pane (spots or photos) the pointer is near the edge of.
+      const b = [...root.querySelectorAll('.bl-pane')].find((pane) => { const r = pane.getBoundingClientRect(); return drag.x >= r.left && drag.x <= r.right && drag.y >= r.top && drag.y <= r.bottom; });
+      if (b && b.scrollHeight > b.clientHeight) {
+        const r = b.getBoundingClientRect(); const zone = Math.min(60, r.height / 4); let dy = 0;
+        if (drag.y < r.top + zone) dy = -Math.ceil((r.top + zone - drag.y) / 4) - 2;
+        else if (drag.y > r.bottom - zone) dy = Math.ceil((drag.y - (r.bottom - zone)) / 4) + 2;
+        if (dy) { b.scrollTop += dy; moveDrag(drag.x, drag.y); }
+      }
+      drag.raf = requestAnimationFrame(tick);
+    };
+    drag.raf = requestAnimationFrame(tick);
+  }
+  function moveDrag(x, y) {
+    drag.x = x; drag.y = y;
+    drag.ghost.style.transform = `translate(${x}px, ${y}px)`;
+    const cell = slotUnder(x, y);
+    if (cell !== drag.over) {
+      if (drag.over) drag.over.classList.remove('bl-drop-over');
+      drag.over = cell;
+      if (cell) cell.classList.add('bl-drop-over');
+    }
+  }
+  function endDrag(drop) {
+    const d = drag; drag = null;
+    if (!d) return;
+    if (d.raf) cancelAnimationFrame(d.raf);
+    d.ghost.remove();
+    d.source.classList.remove('bl-dragging');
+    root.classList.remove('bl-is-dragging');
+    if (d.over) d.over.classList.remove('bl-drop-over');
+    if (drop && d.over) {
+      const to = d.over.dataset.index;
+      if (d.kind === 'lib') assign(to, d.id);
+      else if (d.id !== to) api(`/move?from=${d.id}&to=${to}`, { method: 'POST' });
+    }
+    if (renderHeld) { renderHeld = false; render(); }
+  }
+  function cancelPending() { if (pending && pending.timer) clearTimeout(pending.timer); pending = null; }
+  // Make `node` draggable. `kind`/`id` say what is being dragged.
+  function makeDraggable(node, kind, id, body, label) {
+    node.addEventListener('pointerdown', (e) => {
+      if (e.button !== 0 || drag) return;
+      if (e.target.closest('button')) return; // name / clear / delete buttons keep working
+      cancelPending();
+      pending = { kind, id, body, label, source: node, x: e.clientX, y: e.clientY, sx: e.clientX, sy: e.clientY, pointerId: e.pointerId, touch: e.pointerType !== 'mouse', armed: e.pointerType === 'mouse', timer: null };
+      if (pending.touch) {
+        const p = pending;
+        p.timer = setTimeout(() => { if (pending === p) { p.armed = true; beginDrag(p); try { node.setPointerCapture(p.pointerId); } catch { /* gone */ } } }, TOUCH_HOLD_MS);
+      }
+    });
+  }
+  // Document-level move/up so the drag survives leaving the card it started on.
+  function onPointerMove(e) {
+    if (drag) { e.preventDefault(); moveDrag(e.clientX, e.clientY); return; }
+    if (!pending || e.pointerId !== pending.pointerId) return;
+    const dist = Math.hypot(e.clientX - pending.sx, e.clientY - pending.sy);
+    if (pending.touch) { if (dist > 10) cancelPending(); return; } // moved before the hold: it's a scroll
+    if (dist >= DRAG_MOVE_PX) { const p = pending; pending = null; p.x = e.clientX; p.y = e.clientY; beginDrag(p); }
+  }
+  function onPointerUp(e) {
+    if (drag) { e.preventDefault(); suppressClick = true; setTimeout(() => { suppressClick = false; }, 0); endDrag(e.type === 'pointerup'); }
+    cancelPending();
+  }
+  let suppressClick = false; // the click that follows a drop must not also select / place
+  // While a finger drag is live, stop the page from scrolling under it.
+  function onTouchMove(e) { if (drag) e.preventDefault(); }
+  document.addEventListener('pointermove', onPointerMove, { passive: false });
+  document.addEventListener('pointerup', onPointerUp);
+  document.addEventListener('pointercancel', onPointerUp);
+  document.addEventListener('touchmove', onTouchMove, { passive: false });
+  function stopDragAutoScroll() { cancelPending(); endDrag(false); }
 
   /* ---------- confetti (always animates) ---------- */
   function makeParticle(w, h, intensity, seedY) {
@@ -79,11 +161,12 @@ export default function create({ root, moduleApi }) {
   function stopConfetti() { canvases.clear(); if (raf) { cancelAnimationFrame(raf); raf = null; } }
 
   function render() {
+    if (drag) { renderHeld = true; return; }
     stopConfetti();
     stopParallax();
-    root.innerHTML = '';
     if (choirBtn) choirBtn.classList.toggle('active', !!(state && state.choir));
-    if (editing) { renderEditor(); return; }
+    if (editing) { renderEditor(); return; } // replaces its own content, after noting scroll + focus
+    root.innerHTML = '';
 
     const board = el('div', 'bl-board');
     if (!state) { board.classList.add('bl-message'); board.textContent = 'Connecting…'; root.appendChild(board); return; }
@@ -158,13 +241,16 @@ export default function create({ root, moduleApi }) {
   }
 
   /* ---------- editor ---------- */
+  let libFilter = ''; // the photo search box, kept across re-renders
   function renderEditor() {
-    // No top bar: the photo source is managed in Admin (Google Drive link). Edit mode is just the
-    // board on top and the picture picker (library) below it.
+    // No top bar: the photo source is managed in Admin (Google Drive link). Edit mode is two panes
+    // that scroll on their own: the spots pinned on top, the photos below — so a photo found far
+    // down the list never has to be carried back up to its spot. Both panes keep their scroll
+    // position (and the search box its focus) when a board update redraws the editor.
+    const prevBoard = root.querySelector('.bl-board-pane'); const prevLib = root.querySelector('.bl-lib-pane');
+    const keep = { board: prevBoard ? prevBoard.scrollTop : 0, lib: prevLib ? prevLib.scrollTop : 0, searchFocused: document.activeElement && document.activeElement.classList && document.activeElement.classList.contains('bl-lib-search') };
     const wrap = el('div', 'bl-editor bl-editor-nobar');
-    const body = el('div', 'bl-editor-body');
-    // Feed the drag auto-scroller the pointer position anywhere over the editor.
-    body.addEventListener('dragover', (e) => { dragY = e.clientY; });
+    const body = el('div', 'bl-editor-body bl-editor-split');
 
     // Slots (drop targets)
     const boardEl = el('div', 'bl-edit-board');
@@ -176,14 +262,7 @@ export default function create({ root, moduleApi }) {
       photo.appendChild(slot.person ? photoNode(slot.person) : el('div', 'bl-edit-drop', '＋'));
       cell.appendChild(photo);
       // An occupied card is a drag SOURCE too — move/swap it to another slot.
-      if (slot.person) {
-        cell.draggable = true;
-        cell.addEventListener('dragstart', (e) => {
-          e.dataTransfer.setData('text/plain', 'slot:' + slot.index); e.dataTransfer.effectAllowed = 'move';
-          dragBody = body; dragScrolling = true; startDragAutoScroll();
-        });
-        cell.addEventListener('dragend', stopDragAutoScroll);
-      }
+      if (slot.person) makeDraggable(cell, 'slot', String(slot.index), body, slot.person.name);
       const nameRow = el('div', 'bl-edit-namerow');
       const nameBtn = el('button', 'bl-edit-name', (slot.person && slot.person.name) || 'Name…');
       nameBtn.addEventListener('click', () => renameSlot(slot.index, slot.person ? slot.person.name : ''));
@@ -191,26 +270,23 @@ export default function create({ root, moduleApi }) {
       if (slot.person) { const clr = el('button', 'bl-edit-clear', '×'); clr.title = 'Clear'; clr.addEventListener('click', () => api(`/slot/${slot.index}/clear`, { method: 'POST' })); nameRow.appendChild(clr); }
       cell.appendChild(nameRow);
       cell.appendChild(el('div', 'bl-edit-label', slot.label || `Slot ${slot.index + 1}`));
-      // drop
-      cell.addEventListener('dragover', (e) => { e.preventDefault(); cell.classList.add('bl-drop-over'); });
-      cell.addEventListener('dragleave', () => cell.classList.remove('bl-drop-over'));
-      cell.addEventListener('drop', (e) => {
-        e.preventDefault(); stopDragAutoScroll(); cell.classList.remove('bl-drop-over');
-        const data = e.dataTransfer.getData('text/plain') || '';
-        if (data.startsWith('lib:')) assign(slot.index, data.slice(4));
-        else if (data.startsWith('slot:')) { const from = data.slice(5); if (from !== String(slot.index)) api(`/move?from=${from}&to=${slot.index}`, { method: 'POST' }); }
-      });
-      cell.addEventListener('click', (e) => { if (e.target.closest('.bl-edit-name') || e.target.closest('.bl-edit-clear')) return; if (selectedLibId) assign(slot.index, selectedLibId); });
+      cell.addEventListener('click', (e) => { if (suppressClick) return; if (e.target.closest('.bl-edit-name') || e.target.closest('.bl-edit-clear')) return; if (selectedLibId) assign(slot.index, selectedLibId); });
       boardEl.appendChild(cell);
     }
-    body.appendChild(boardEl);
+    const boardPane = el('div', 'bl-pane bl-board-pane');
+    boardPane.appendChild(boardEl);
+    body.appendChild(boardPane);
 
-    // Library
+    // Library, with a name search
+    const libPane = el('div', 'bl-pane bl-lib-pane');
+    const search = el('input', 'bl-lib-search');
+    search.type = 'search'; search.placeholder = 'Find a photo…'; search.value = libFilter;
+    libPane.appendChild(search);
     const lib = el('div', 'bl-library');
     const list = state?.library || [];
     if (!list.length) lib.appendChild(el('div', 'bl-lib-empty', 'No photos yet — set a Google Drive folder link in Admin, or hit Sync. Then drag a photo onto a slot.'));
     for (const person of list) {
-      const item = el('div', 'bl-lib-item'); item.draggable = true; item.dataset.id = person.id;
+      const item = el('div', 'bl-lib-item'); item.dataset.id = person.id;
       if (person.id === selectedLibId) item.classList.add('bl-lib-selected');
       const ph = el('div', 'bl-lib-photo'); ph.appendChild(photoNode(person, 'bl-lib-img')); item.appendChild(ph);
       const nm = el('button', 'bl-lib-name', person.name || 'Name…');
@@ -219,19 +295,27 @@ export default function create({ root, moduleApi }) {
       const del = el('button', 'bl-lib-del', '×'); del.title = 'Delete photo';
       del.addEventListener('click', (e) => { e.stopPropagation(); if (confirm(`Delete ${person.name || 'this photo'} from the library?`)) api(`/library/${person.id}/delete`, { method: 'POST' }); });
       item.appendChild(del);
-      item.addEventListener('dragstart', (e) => {
-        e.dataTransfer.setData('text/plain', 'lib:' + person.id); e.dataTransfer.effectAllowed = 'copy';
-        dragBody = body; dragScrolling = true; startDragAutoScroll();
-      });
-      item.addEventListener('dragend', stopDragAutoScroll);
-      item.addEventListener('click', () => { selectedLibId = selectedLibId === person.id ? '' : person.id; renderEditor(); });
+      makeDraggable(item, 'lib', person.id, body, person.name);
+      item.addEventListener('click', () => { if (suppressClick) return; selectedLibId = selectedLibId === person.id ? '' : person.id; renderEditor(); });
       lib.appendChild(item);
     }
-    body.appendChild(lib);
+    const applyFilter = () => {
+      const q = libFilter.trim().toLowerCase();
+      for (const item of lib.querySelectorAll('.bl-lib-item')) {
+        const nm = item.querySelector('.bl-lib-name');
+        item.style.display = !q || (nm && nm.textContent.toLowerCase().includes(q)) ? '' : 'none';
+      }
+    };
+    search.addEventListener('input', () => { libFilter = search.value; applyFilter(); });
+    applyFilter();
+    libPane.appendChild(lib);
+    body.appendChild(libPane);
     wrap.appendChild(body);
 
     root.innerHTML = '';
     root.appendChild(wrap);
+    boardPane.scrollTop = keep.board; libPane.scrollTop = keep.lib;
+    if (keep.searchFocused) { search.focus(); try { search.setSelectionRange(search.value.length, search.value.length); } catch { /* type=search */ } }
   }
 
   function assign(slotIndex, personId) {
@@ -260,7 +344,7 @@ export default function create({ root, moduleApi }) {
         title: 'Sync',
         onClick() { moduleApi.setStatus('connecting', 'Syncing with Planning Center…'); api('/sync', { method: 'POST' }); },
       });
-      const editBtn = moduleApi.header.addButton({ icon: EDIT_ICON, title: 'Edit board', onClick() { editing = !editing; editBtn.classList.toggle('active', editing); render(); } });
+      const editBtn = moduleApi.header.addButton({ icon: EDIT_ICON, title: 'Edit board', onClick() { editing = !editing; if (editing) libFilter = ''; editBtn.classList.toggle('active', editing); render(); } });
       // Columns −/+ (touch-friendly; replaces the gear number field).
       const MINUS_ICON = '<svg viewBox="0 0 24 24" width="13" height="13" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round"><path d="M5 12h14"/></svg>';
       const PLUS_ICON = '<svg viewBox="0 0 24 24" width="13" height="13" fill="none" stroke="currentColor" stroke-width="3" stroke-linecap="round"><path d="M12 5v14M5 12h14"/></svg>';
@@ -293,6 +377,10 @@ export default function create({ root, moduleApi }) {
       stopConfetti();
       stopParallax();
       stopDragAutoScroll();
+      document.removeEventListener('pointermove', onPointerMove);
+      document.removeEventListener('pointerup', onPointerUp);
+      document.removeEventListener('pointercancel', onPointerUp);
+      document.removeEventListener('touchmove', onTouchMove);
       root.innerHTML = '';
     },
   };

modules/band-lineup/matching.js

@@ -117,9 +117,61 @@ function scoreMatch(slotLabel, positionLabel) {
  * member or null. `MIN_SCORE` keeps a weak coincidence from claiming a slot.
  */
 const MIN_SCORE = 60;
+
+/** The mix numbers a label names ("[VOX 5] MIX 8" → {"8"}; "Mix 8, VOX 5" → {"8"}). */
+function mixNumbers(value) {
+  const out = new Set(); const re = /\bmix\s*(\d+)\b/gi; let m;
+  while ((m = re.exec(String(value || '')))) out.add(m[1]);
+  return out;
+}
+
+/**
+ * How well a person's Planning Center note names a spot. The booth writes the mic/role into each
+ * vocalist's and the leader's note every week ("Mix 8, VOX 5", "DP48, Drums"), because those
+ * change week to week and the position name ("Vocalist") doesn't say which mic. A note that names a
+ * different mix than the spot is never a match; the role part ("VOX 5") is scored like a position.
+ * 0 means the note says nothing usable about this spot ("NA", blank, or no overlap).
+ */
+function noteScore(slotLabel, note) {
+  const text = String(note || '').trim();
+  if (!text || /^n\/?a$/i.test(text)) return 0;
+  const slotMix = mixNumbers(slotLabel); const noteMix = mixNumbers(text);
+  let mixBonus = 0;
+  if (noteMix.size && slotMix.size) {
+    if (![...noteMix].some((n) => slotMix.has(n))) return 0;
+    mixBonus = 100;
+  }
+  const role = text.replace(/\bmix\s*\d+\b/gi, ' ');
+  const roleScore = scoreMatch(slotRoleText(slotLabel), role);
+  if (!roleScore && !mixBonus) return 0;
+  if (noteMix.size && slotMix.size && roleScore === 0 && role.replace(/[^a-z0-9]/gi, '')) {
+    // The mix agrees but the role contradicts it (e.g. "Mix 8, Keys" on a VOX spot) — trust neither.
+    const roleTokens = labelTokens(role);
+    if (roleTokens.length) return 0;
+  }
+  return mixBonus + roleScore;
+}
+
 function assignMembersToSlots(slots, members) {
   const pool = members.slice();
-  return slots.map((slotLabel) => {
+  const result = slots.map(() => null);
+  const take = (chosen) => {
+    // One spot per person: someone scheduled twice (Leader + Acoustic) must not fill a second spot.
+    const key = chosen.personId || '';
+    for (let i = pool.length - 1; i >= 0; i -= 1) if (pool[i] === chosen || (key && pool[i].personId === key)) pool.splice(i, 1);
+  };
+  // Pass 1 — people whose note names their spot go exactly there, best-fitting pairs first.
+  const pairs = [];
+  slots.forEach((slotLabel, s) => pool.forEach((m) => { const sc = noteScore(slotLabel, m.note); if (sc >= MIN_SCORE) pairs.push({ s, m, sc }); }));
+  pairs.sort((a, b) => b.sc - a.sc);
+  for (const { s, m } of pairs) {
+    if (result[s] || !pool.includes(m)) continue;
+    result[s] = m; take(m);
+  }
+  // Pass 2 — everyone else by Planning Center position, into the spots still open.
+  return result.map((placed, s) => {
+    if (placed) return placed;
+    const slotLabel = slots[s];
     const role = slotRoleText(slotLabel);
     let bestIndex = -1;
     let bestScore = MIN_SCORE - 1;
@@ -128,18 +180,66 @@ function assignMembersToSlots(slots, members) {
       if (score > bestScore) { bestScore = score; bestIndex = i; }
     }
     if (bestIndex < 0) return null;
-    return pool.splice(bestIndex, 1)[0];
+    const chosen = pool[bestIndex];
+    take(chosen);
+    return chosen;
   });
 }
 
+/* ── photos by instrument ──────────────────────────────────────────────
+ * A person can have a photo per instrument, named "Name - Instrument" ("DJ - Drums.jpg",
+ * "DJ - Vocals.jpg"); a photo with no instrument word is their everyday one. Sync picks the photo
+ * whose instrument matches the spot the person is in that week. Instruments group into families so
+ * the usual shorthands agree: Vox/Vocals/Singer, Keys/Piano/Pad/Synth, Drums/Perc, Bass,
+ * Guitar/Electric/Acoustic/Rhythm, Leader. */
+const ROLE_FAMILY = {
+  vocals: 'vocals', keys: 'keys', piano: 'keys', pad: 'keys', synth: 'keys', organ: 'keys',
+  drums: 'drums', percussion: 'drums', bass: 'bass',
+  guitar: 'guitar', electric: 'guitar', acoustic: 'guitar', rhythm: 'guitar', leader: 'leader',
+};
+/** The instrument families a label names ("[LEADER, VOX 1, ACOUSTIC] MIX 1" → leader, vocals, guitar). */
+function roleFamilies(text) {
+  const out = new Set();
+  for (const t of normalizeLabel(text).split(' ')) { const f = ROLE_FAMILY[normalizeToken(t)]; if (f) out.add(f); }
+  return out;
+}
+/** The instrument families a SPOT is for: its bracketed role, else the PCO position it was filled by. */
+function spotFamilies(slotLabel, positionLabel) {
+  const fromSlot = roleFamilies(slotRoleText(slotLabel));
+  return fromSlot.size ? fromSlot : roleFamilies(positionLabel || '');
+}
+/** Split a photo's name into the person and the instruments it shows: "DJ Drums" → "DJ" + {drums}.
+ *  The first word is always the person; instrument words after it are read off, other words
+ *  ("action", "2") are just part of the photo's description. */
+function photoParts(libName) {
+  const words = normalizeLabel(libName).split(' ').filter(Boolean);
+  const roles = new Set(); const person = [];
+  words.forEach((w, i) => {
+    const f = i > 0 ? ROLE_FAMILY[normalizeToken(w)] : null;
+    if (f) roles.add(f); else if (!roles.size) person.push(w);
+  });
+  return { person: person.join(' '), roles };
+}
+/** The key a remembered photo pick is stored under: per person AND instrument, so DJ's drum pick
+ *  never overrides his vocal photo. A spot naming several ("Leader, Vox 1, Acoustic") files under
+ *  its most specific: leader, then vocals, drums, keys, bass, guitar. No family → everyday pick. */
+const ROLE_PRIORITY = ['leader', 'vocals', 'drums', 'keys', 'bass', 'guitar'];
+function photoKey(personId, families) {
+  const f = ROLE_PRIORITY.find((r) => families && families.has(r)) || '';
+  return f ? `${personId}|${f}` : String(personId || '');
+}
+
 /**
  * Best library photo for a Planning Center person, matched by name so Sync can use the folder
  * photo instead of the PCO headshot. Handles full names, "First L" and first-name-only files,
- * preferring the most specific. Returns the entry, or null when there's no confident, UNAMBIGUOUS
- * match (e.g. two people share a first name and the photo is first-name-only) — then PCO's photo is used.
- * `entries` is [{ ...whatever, name }].
+ * preferring the most specific. Returns the entry, or null when no library photo is a confident
+ * match — only then is PCO's headshot used. Several equally good photos ("Mike" and "mike") is
+ * not a reason to fall back to PCO: the first of them wins (the booth prefers its own photos).
+ * `entries` is [{ ...whatever, name }]. `want` (optional) is the set of instrument families the
+ * person is on this week: a photo for that instrument beats their everyday photo, which beats a
+ * photo of them on something else — but any photo of theirs still beats PCO's headshot.
  */
-function bestLibraryMatch(pcoName, entries) {
+function bestLibraryMatch(pcoName, entries, want) {
   const target = normalizeLabel(pcoName);
   if (!target) return null;
   const T = target.split(' ').filter(Boolean);
@@ -171,19 +271,39 @@ function bestLibraryMatch(pcoName, entries) {
     if (last && last.length >= 3 && T.includes(last)) return 78;
     return 0;
   };
+  const wanted = want && want.size ? want : null;
   let best = null;
   let bestScore = 0;
-  let tie = false;
   for (const e of entries) {
-    const s = scoreOf(e.name);
-    if (s > bestScore) { bestScore = s; best = e; tie = false; }
-    else if (s === bestScore && s > 0) tie = true;
+    const parts = photoParts(e.name);
+    let s = scoreOf(parts.roles.size ? parts.person : e.name);
+    if (s < 60) continue; // not them
+    if (parts.roles.size && wanted) s += [...parts.roles].some((f) => wanted.has(f)) ? 20 : -20;
+    if (s > bestScore) { bestScore = s; best = e; }
   }
-  if (bestScore < 60 || tie) return null; // no confident / unambiguous winner → PCO photo
+  if (!best) return null; // no confident match → PCO photo
   return best;
 }
 
+/**
+ * Could this library photo be of this Planning Center person? Used when someone drops a photo onto
+ * a synced person's spot, to tell "this is their photo" (remember it) from "put someone else here".
+ * A name match, the same first name ("DJ action" → "DJ McLean"), or first names sharing their
+ * first three letters (a nickname: "Rose" → "Rosaliz").
+ */
+function samePerson(pcoName, libName) {
+  if (bestLibraryMatch(pcoName, [{ name: libName }])) return true;
+  const a = normalizeLabel(pcoName).split(' ')[0] || ''; const b = photoParts(libName).person.split(' ')[0] || '';
+  if (a && a === b) return true;
+  return a.length >= 3 && b.length >= 3 && a.slice(0, 3) === b.slice(0, 3);
+}
+
 module.exports = {
+  samePerson,
+  roleFamilies,
+  spotFamilies,
+  photoParts,
+  photoKey,
   normalizeTeamName,
   isAllowedTeamName,
   bestLibraryMatch,
@@ -194,5 +314,7 @@ module.exports = {
   numbersIn,
   scoreMatch,
   assignMembersToSlots,
+  noteScore,
+  mixNumbers,
   MIN_SCORE,
 };

modules/band-lineup/matching.test.js

@@ -61,7 +61,83 @@ console.log('assignment:', JSON.stringify(out));
   assert.strictEqual(pick('Alex Johnson'), 'Alex', 'first-name photo maps to any exact-first-name person');
   // exact full name beats a first-name photo
   assert.strictEqual(pick('Alex Gaitan', [{ id: 'x', name: 'Alex Gaitan' }, { id: 'a', name: 'Alex' }]), 'Alex Gaitan', 'exact full name wins');
-  // tie → no match (two identical-scoring photos)
-  assert.strictEqual(bestLibraryMatch('Chris Smith', [{ id: '1', name: 'Chris' }, { id: '2', name: 'Chris' }]), null, 'ambiguous tie → null');
+  // two equally good photos ("Mike" and "mike") → still one of the booth's photos, never PCO's
+  assert.strictEqual(bestLibraryMatch('Mike Powell', [{ id: '1', name: 'Mike' }, { id: '2', name: 'mike' }]).id, '1', 'tie → first library photo');
+  assert.strictEqual(bestLibraryMatch('Joram Lopez', lib), null, 'no photo of them → PCO headshot');
   console.log('bestLibraryMatch: all assertions passed ✓');
 }
+
+// --- one spot per person: someone scheduled twice (Leader + Acoustic) fills one spot only ---
+{
+  const P = (label, name, personId) => ({ label, name, personId });
+  const slots = ['[LEADER, VOX 1, ACOUSTIC] MIX 1', '[GUITAR, 2] MIX 7'];
+  const got = assignMembersToSlots(slots, [P('[Leader]', 'Mike', 'mp'), P('Guitar [Acoustic]', 'Mike', 'mp'), P('Guitar [Rhythm]', 'Craig', 'cs')]).map((m) => (m ? m.name : null));
+  assert.deepStrictEqual(got, ['Mike', 'Craig'], 'Mike once, Craig gets the guitar spot');
+  console.log('one spot per person: all assertions passed ✓');
+}
+
+// --- Planning Center notes place the leader and vocalists (real notes from Oct 25 / Nov 1, 2026) ---
+{
+  const { noteScore } = require('./matching');
+  const NA_SLOTS = [
+    '[LEADER, VOX 1, ACOUSTIC] MIX 1', '[VOX 2] MIX 2', '[VOX 3] MIX 3', '[VOX 4] MIX 4', '[GUITAR, LEAD] MIX 5',
+    '[BASS] MIX 6', '[GUITAR, 2] MIX 7', '[VOX 5] MIX 8', '[PIANO]', '[DRUMS]', '[KEYS 2]',
+  ];
+  const P = (label, name, personId, note) => ({ label, name, personId, note });
+  // Listed in the order Planning Center returned them — vocalists alphabetical, not by mic.
+  const oct25 = [
+    P('Vocalist', 'DJ', 'dj', 'Mix 3, VOX 3'), P('[Leader]', 'Mike', 'mp', 'Mix 1, VOX 1'), P('Guitar [Lead]', 'Yeremis', 'yc'),
+    P('Piano/Pad', 'Kevin', 'km'), P('Vocalist', 'Genesis', 'gg', 'Mix 4, VOX 4'), P('Guitar [Rhythm]', 'Craig', 'cs'),
+    P('Guitar [Acoustic]', 'Mike', 'mp'), P('Vocalist', 'Rosaliz', 'rg', 'Mix 2, VOX 2'), P('Drums', 'Luis', 'ld'),
+    P('Vocalist', 'Bianca', 'bb', 'Mix 8, VOX 5'), P('Guitar [Bass]', 'Joram', 'jl'),
+  ];
+  const got = assignMembersToSlots(NA_SLOTS, oct25).map((m) => (m ? m.name : null));
+  assert.deepStrictEqual(got, ['Mike', 'Rosaliz', 'DJ', 'Genesis', 'Yeremis', 'Joram', 'Craig', 'Bianca', 'Kevin', 'Luis', null], 'Oct 25 by notes');
+  // Nov 1: leader note in different case, a drum note with no mix, an "NA" note.
+  const nov1 = [P('Guitar [Acoustic]', 'Mike', 'mp', 'NA'), P('Drums', 'Alex', 'ag', 'DP48, Drums'), P('[Leader]', 'Mike', 'mp', 'Mix 1, Vox 1')];
+  assert.deepStrictEqual(assignMembersToSlots(NA_SLOTS, nov1).map((m) => (m ? m.name : null)).filter(Boolean), ['Mike', 'Alex'], 'Nov 1: Mike once, Alex on drums');
+  assert.strictEqual(assignMembersToSlots(NA_SLOTS, nov1)[9].name, 'Alex', 'DP48, Drums → [DRUMS]');
+  // A note never pulls someone onto a different mix.
+  assert.strictEqual(noteScore('[VOX 2] MIX 2', 'Mix 8, VOX 5'), 0, 'Mix 8 note must not match MIX 2');
+  assert.strictEqual(noteScore('[VOX 5] MIX 8', 'Mix 8, VOX 5') > 0, true, 'Mix 8, VOX 5 matches [VOX 5] MIX 8');
+  assert.strictEqual(noteScore('[VOX 5] MIX 8', 'NA'), 0, 'NA says nothing');
+  assert.strictEqual(noteScore('[VOX 1] MIX 10', 'Mix 1, VOX 1') , 0, 'Mix 1 must not match MIX 10');
+  console.log('notes: all assertions passed ✓');
+}
+
+// --- samePerson: is a dropped photo of the person already in the spot? ---
+{
+  const { samePerson } = require('./matching');
+  assert.ok(samePerson('Rosaliz Gaitan', 'Rose'), 'nickname: Rose → Rosaliz');
+  assert.ok(samePerson('Mike Powell', 'mike'), 'first name, any case');
+  assert.ok(samePerson('Mike Powell', 'Mike Powell action'), 'full name plus words');
+  assert.ok(samePerson('DJ McLean', 'DJ action'), 'short first name plus words');
+  assert.ok(!samePerson('Mike Powell', 'Craig'), 'a different person is a replacement, not their photo');
+  assert.ok(!samePerson('Al Smith', 'Alex'), 'two-letter names never match by prefix');
+  console.log('samePerson: all assertions passed ✓');
+}
+
+// --- a photo per instrument: "DJ - Drums", "DJ - Vocals", plain "DJ" for everything else ---
+{
+  const { bestLibraryMatch, photoParts, spotFamilies, roleFamilies, photoKey } = require('./matching');
+  // File names arrive with the dash turned to a space: "DJ - Drums.jpg" → "DJ Drums".
+  const lib = [{ id: 'e', name: 'DJ' }, { id: 'd', name: 'DJ Drums' }, { id: 'v', name: 'DJ Vocals' }, { id: 'k', name: 'Kevin Piano' }, { id: 'm', name: 'Mike Powell Leader' }];
+  const pick = (name, slot, pos) => { const e = bestLibraryMatch(name, lib, spotFamilies(slot, pos)); return e ? e.id : null; };
+  assert.strictEqual(pick('DJ McLean', '[DRUMS]', 'Drums'), 'd', 'on drums → drum photo');
+  assert.strictEqual(pick('DJ McLean', '[VOX 3] MIX 3', 'Vocalist'), 'v', 'on vocals → vocal photo');
+  assert.strictEqual(pick('DJ McLean', '[KEYS 2]', 'Keys 2'), 'e', 'on keys, no keys photo → everyday photo');
+  assert.strictEqual(pick('DJ McLean', 'STAGE MANAGER', 'Stage Manager'), 'e', 'no instrument → everyday photo');
+  assert.strictEqual(pick('Kevin Michel', '[KEYS 2]', 'Keys 2'), 'k', 'Piano and Keys are one family');
+  assert.strictEqual(pick('Kevin Michel', '[DRUMS]', 'Drums'), 'k', 'only photo is on piano → still his own photo, not PCO');
+  assert.strictEqual(pick('Mike Powell', '[LEADER, VOX 1, ACOUSTIC] MIX 1', '[Leader]'), 'm', 'full name + instrument');
+  assert.strictEqual(pick('Craig Strok', '[DRUMS]', 'Drums'), null, 'nobody else\'s instrument photo is borrowed');
+  assert.deepStrictEqual([...photoParts('DJ Drums action').roles], ['drums'], 'extra words after the instrument are ignored');
+  assert.strictEqual(photoParts('Joshua P').roles.size, 0, 'a plain name has no instrument');
+  assert.strictEqual(photoParts('Keys').person, 'keys', 'the first word is always the person');
+  assert.deepStrictEqual([...spotFamilies('[BASS] MIX 6', 'Guitar [Bass]')], ['bass'], 'the spot decides, not the position');
+  assert.deepStrictEqual([...roleFamilies('Guitar [Rhythm]')], ['guitar'], 'rhythm guitar is guitar');
+  assert.strictEqual(photoKey('dj', new Set(['drums'])), 'dj|drums');
+  assert.strictEqual(photoKey('dj', new Set()), 'dj');
+  assert.strictEqual(photoKey('mp', spotFamilies('[LEADER, VOX 1, ACOUSTIC] MIX 1', '[Leader]')), 'mp|leader', 'leader spot files under leader');
+  console.log('photos by instrument: all assertions passed ✓');
+}

modules/band-lineup/module.json

@@ -1,7 +1,7 @@
 {
   "id": "band-lineup",
   "name": "Band Lineup",
-  "version": "1.11.0",
+  "version": "1.13.0",
   "proddash": ">=1.4.0",
   "description": "Stage lineup photos with mic/pack labels — a drag-in photo library plus optional Planning Center auto-fill",
   "client": "client.js",

modules/band-lineup/server.js

@@ -32,7 +32,7 @@ const path = require('path');
 const os = require('os');
 const crypto = require('crypto');
 
-const { isAllowedTeamName, assignMembersToSlots, bestLibraryMatch } = require('./matching');
+const { isAllowedTeamName, assignMembersToSlots, bestLibraryMatch, samePerson, spotFamilies, photoParts, photoKey } = require('./matching');
 
 const DEFAULT_API_BASE = 'https://api.planningcenteronline.com';
 const API_BASE = String(process.env.BAND_LINEUP_API_BASE || process.env.PCO_PLAN_API_BASE || DEFAULT_API_BASE).replace(/\/+$/, '');
@@ -219,6 +219,27 @@ module.exports = {
     const settings = readJsonFile(settingsPath, {}) || {};
     const photoFolder = String(config.photoFolder || settings.photoFolder || '').trim(); // admin field (Drive link or local path)
     let choirOn = Boolean(settings.choir); // optional extra "CHOIR" slot, toggled from the tile
+    // The photo the booth picked for a Planning Center person on an instrument ("<PCO person id>|drums"
+    // → library id; a bare person id is their everyday pick), learned when a library photo is dropped
+    // onto that person. Sync uses it before any name matching.
+    if (!settings.photoFor || typeof settings.photoFor !== 'object') settings.photoFor = {};
+    function rememberPhoto(key, libId) {
+      if (!key || !libId || settings.photoFor[key] === libId) return;
+      settings.photoFor[key] = libId; saveSettings();
+    }
+    // Library photo for a scheduled person in a spot whose instruments are `fams`:
+    //   1. the photo picked for them on this instrument;
+    //   2. a photo named for this instrument ("DJ - Drums");
+    //   3. their everyday pick, else their best-named photo (an other-instrument photo of them
+    //      still beats PCO's headshot).
+    function libraryPhotoFor(personId, name, fams) {
+      const live = (id) => (id && library[id] && library[id].file ? { id, ...library[id] } : null);
+      const forRole = live(settings.photoFor[photoKey(personId, fams)]);
+      if (forRole) return forRole;
+      const m = bestLibraryMatch(name, Object.entries(library).map(([id, v]) => ({ id, name: v.name, file: v.file })), fams);
+      if (m && [...photoParts(m.name).roles].some((f) => fams.has(f))) return m;
+      return live(settings.photoFor[personId]) || (m && m.file ? m : null);
+    }
     function saveSettings() { try { fs.writeFileSync(settingsPath, JSON.stringify(settings, null, 2)); } catch (err) { log(`save settings failed: ${err?.message || err}`); } }
 
     const CHOIR_LABEL = 'CHOIR';
@@ -247,7 +268,7 @@ module.exports = {
       return {
         configured: pco.configured, serviceTypeSet: Boolean(serviceTypeId),
         reachable: false, lastError: '', lastFetched: 0, columns,
-        plan: null,
+        plan: settings.lastPlan || null, // the last synced plan, so hand placements after a restart stamp right
         slots: effectiveSlots().map((label, index) => ({ index, label, person: null })),
         library: [], choir: choirOn,
       };
@@ -313,7 +334,7 @@ module.exports = {
      * left alone, so a folder and hand-uploads can coexist. Returns true if anything changed.
      */
     const IMG_RE = /\.(jpe?g|png|webp|gif)$/i;
-    const cleanNameFromFile = (f) => f.replace(/\.[^.]+$/, '').replace(/[_-]+/g, ' ').trim();
+    const cleanNameFromFile = (f) => f.replace(/\.[^.]+$/, '').replace(/[_-]+/g, ' ').replace(/\s+/g, ' ').trim(); // "DJ - Drums.jpg" → "DJ Drums"
     function extOf(f) { const m = f.match(IMG_RE); const e = (m ? m[1] : 'jpg').toLowerCase(); return e === 'jpeg' ? 'jpg' : e; }
     function scanFolder() {
       if (!photoFolder) return false;
@@ -449,11 +470,13 @@ module.exports = {
       if (!e) return null;
       let name = '', file = '', birthday = '', manual = true, personId = '';
       if (e.pco) {
-        // The photo (folder photo, or PCO headshot) was chosen at Sync time — use it as-is.
+        // A synced person. Their library photo (if any) is read live, so replacing that photo
+        // updates the board; otherwise the photo chosen at Sync time (a PCO headshot).
         manual = false; personId = e.pco.personId || '';
         name = String(e.pco.name || '').trim();
-        file = e.pco.file || '';
-        birthday = e.pco.birthday || '';
+        const lib = e.pco.libId ? library[e.pco.libId] : null;
+        file = (lib && lib.file) || e.pco.file || '';
+        birthday = e.pco.birthday || (lib && lib.birthday) || '';
       } else if (e.personId) {
         const lib = library[e.personId];
         if (!lib) return null; // its library photo was deleted → slot is empty
@@ -493,7 +516,8 @@ module.exports = {
         await syncPhotos(); // import the photo source (Drive folder or local path) on every sync
         if (pco.configured && serviceTypeId) {
         const plan = pickPlan(await listPlans(serviceTypeId));
-        latest.plan = plan ? { title: plan.title, dates: plan.dates } : null;
+        latest.plan = plan ? { id: String(plan.id), title: plan.title, dates: plan.dates } : null;
+        if (plan) { settings.lastPlan = latest.plan; saveSettings(); }
         if (!plan) { latest.reachable = true; latest.lastError = 'No plan found for that service type.'; }
         else {
 
@@ -511,6 +535,7 @@ module.exports = {
             personId,
             name: String(person?.attributes?.full_name || person?.attributes?.name || m.attributes?.name || 'Unknown').trim() || 'Unknown',
             label: String(m.attributes?.team_position_name || '').trim(),
+            note: String(m.attributes?.notes || '').trim(), // "Mix 8, VOX 5" — where the booth wants them this week
             photoUrl: String(person?.attributes?.photo_url || person?.attributes?.photo_thumbnail_url || '').trim(),
           });
           if (personId) seen.add(personId);
@@ -519,15 +544,29 @@ module.exports = {
         for (const id of seen) { try { const b = await pco.get(`${PEOPLE}/people/${encodeURIComponent(id)}`, { 'fields[Person]': 'birthdate' }); bdays.set(id, birthdayMmdd(b?.data?.attributes?.birthdate)); } catch { bdays.set(id, ''); } }
         for (const m of members) m.birthday = bdays.get(m.personId) || '';
 
-        const libEntries = Object.entries(library).map(([id, v]) => ({ id, name: v.name, file: v.file }));
+        // A library photo dragged by hand onto a spot for this plan, of someone who IS scheduled
+        // ("Rose" for Rosaliz Gaitan): that's their photo. Remember it, and show them under their
+        // Planning Center name, kept in that spot.
+        for (const [i, e] of Object.entries(board)) {
+          if (!e || !e.personId || e.plan !== String(plan.id) || !library[e.personId]) continue;
+          const libName = library[e.personId].name;
+          const who = [...new Map(members.map((m) => [m.personId, m])).values()].filter((m) => m.personId && samePerson(m.name, libName));
+          if (who.length !== 1) continue; // nobody, or can't tell which — leave it a plain hand placement
+          const m = who[0];
+          rememberPhoto(photoKey(m.personId, spotFamilies(effectiveSlots()[Number(i)] || '', m.label)), e.personId);
+          board[i] = { pco: { name: m.name, file: library[e.personId].file, libId: e.personId, birthday: m.birthday || '', personId: m.personId, position: m.label }, plan: e.plan };
+        }
 
-        // Slots a person is sitting in by hand — don't fill them, and don't place that same person twice.
+        // Slots a person was placed in by hand FOR THIS PLAN — don't fill them, and don't place that
+        // same person twice. A hand placement made for an earlier plan (last week's lineup, or one
+        // from before placements were stamped) is stale: Sync replaces it like any synced slot.
         const eff = effectiveSlots();
+        const planId = String(plan.id);
         const openIdx = []; const manualNames = new Set();
         for (let i = 0; i < eff.length; i += 1) {
           const e = board[String(i)];
-          if (e && (e.personId || e.name)) {
-            const nm = e.personId ? (library[e.personId] && library[e.personId].name) : e.name;
+          if (e && (e.personId || e.name || e.pco) && e.plan === planId) {
+            const nm = e.pco ? e.pco.name : e.personId ? (library[e.personId] && library[e.personId].name) : e.name;
             if (nm) manualNames.add(normName(nm));
           } else openIdx.push(i);
         }
@@ -537,11 +576,12 @@ module.exports = {
         for (let k = 0; k < openIdx.length; k += 1) {
           const i = openIdx[k]; const m = assigned[k];
           if (m) {
-            const lib = bestLibraryMatch(m.name, libEntries); // folder photo wins over the PCO headshot
-            const file = lib && lib.file ? lib.file : await cachePcoPhoto(m.personId, m.photoUrl);
-            board[String(i)] = { pco: { name: m.name, file, birthday: m.birthday || '', personId: m.personId } };
-          } else if (board[String(i)] && board[String(i)].pco) {
-            delete board[String(i)]; // was synced, no longer on the plan
+            // The booth's own photos win over the PCO headshot — the one for the instrument they're on.
+            const lib = libraryPhotoFor(m.personId, m.name, spotFamilies(eff[i], m.label));
+            const file = lib ? lib.file : await cachePcoPhoto(m.personId, m.photoUrl);
+            board[String(i)] = { pco: { name: m.name, file, libId: lib ? lib.id : '', birthday: m.birthday || '', personId: m.personId, position: m.label } };
+          } else if (board[String(i)]) {
+            delete board[String(i)]; // synced or stale, and no longer on the plan
           }
         }
         saveBoard();
@@ -580,6 +620,9 @@ module.exports = {
     current = {
       streams, getLatest: () => latest, pco, listPlans, photoDir,
       library, board, saveLibrary, saveBoard, rebuildLocal, refresh: () => syncNow(), slots,
+      planId: () => (latest.plan && latest.plan.id) || '',
+      rememberPhoto,
+      slotLabel: (i) => effectiveSlots()[Number(i)] || '',
       photoUrlFor, libraryList,
       setChoir, choirOn: () => choirOn,
     };
@@ -670,6 +713,10 @@ module.exports = {
         const from = String(p.get('from') || ''); const to = String(p.get('to') || '');
         if (!/^\d+$/.test(from) || !/^\d+$/.test(to) || from === to) return json(res, 400, { error: 'Bad move.' });
         const a = current.board[from]; const b = current.board[to];
+        // Moving a spot is a hand placement for this plan: Sync must not move it back.
+        const plan = current.planId();
+        if (a) a.plan = plan;
+        if (b) b.plan = plan;
         if (a === undefined) delete current.board[to]; else current.board[to] = a;
         if (b === undefined) delete current.board[from]; else current.board[from] = b;
         current.saveBoard(); current.rebuildLocal();
@@ -684,7 +731,14 @@ module.exports = {
         const personId = String(q.get('personId') || '').trim();
         if (!/^\d+$/.test(slot)) return json(res, 400, { error: 'Bad slot.' });
         if (personId && !current.library[personId]) return json(res, 404, { error: 'No such library photo.' });
-        if (personId) current.board[slot] = { personId, name: '' };
+        const here = current.board[slot];
+        if (personId && here && here.pco && here.pco.personId && samePerson(here.pco.name, current.library[personId].name)) {
+          // A photo of the person already in this spot: it's their photo now — this week and every
+          // Sync after. They keep their Planning Center name and their spot.
+          // Remembered for this instrument only: DJ's pick on drums leaves his vocal photo alone.
+          current.rememberPhoto(photoKey(here.pco.personId, spotFamilies(current.slotLabel(slot), here.pco.position)), personId);
+          current.board[slot] = { pco: { ...here.pco, libId: personId, file: current.library[personId].file }, plan: current.planId() };
+        } else if (personId) current.board[slot] = { personId, name: '', plan: current.planId() };
         else delete current.board[slot];
         current.saveBoard(); current.rebuildLocal();
         json(res, 200, { ok: true });
@@ -702,6 +756,7 @@ module.exports = {
         const name = String(q.get('name') || '').trim();
         const existing = current.board[index] || { personId: '', name: '' };
         existing.name = name;
+        existing.plan = current.planId();
         if (!existing.personId && !name) delete current.board[index];
         else current.board[index] = existing;
         current.saveBoard(); current.rebuildLocal();

modules/band-lineup/style.css

@@ -230,3 +230,34 @@
   background: color-mix(in srgb, var(--bg) 60%, transparent); color: var(--text); cursor: pointer; font-size: 0.85em; line-height: 1;
 }
 [data-module="band-lineup"] .bl-lib-del:hover { background: var(--danger); color: #fff; }
+
+/* Drag: the floating photo that follows the pointer (appended to <body>, so it scopes itself). */
+[data-module="band-lineup"].bl-drag-ghost {
+  position: fixed; left: 0; top: 0; z-index: 10000; pointer-events: none;
+  width: 72px; aspect-ratio: 3 / 4; margin: -48px 0 0 -36px; border-radius: 8px; overflow: hidden;
+  border: 2px solid var(--accent); background: var(--panel, #222); color: var(--text); font-size: 11px;
+  display: flex; align-items: center; justify-content: center; text-align: center;
+  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45); opacity: 0.92;
+}
+[data-module="band-lineup"].bl-drag-ghost img { width: 100%; height: 100%; object-fit: cover; object-position: center top; }
+[data-module="band-lineup"] .bl-lib-item,
+[data-module="band-lineup"] .bl-edit-slot { -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; }
+[data-module="band-lineup"] .bl-edit-slot img,
+[data-module="band-lineup"] .bl-lib-item img { -webkit-user-drag: none; pointer-events: none; }
+[data-module="band-lineup"] .bl-dragging { opacity: 0.35; }
+[data-module="band-lineup"].bl-is-dragging, [data-module="band-lineup"] .bl-is-dragging { cursor: grabbing; }
+[data-module="band-lineup"] .bl-is-dragging .bl-edit-slot { transition: box-shadow 0.08s; }
+
+/* Editor as two panes that scroll on their own: spots pinned on top, photos below. */
+[data-module="band-lineup"] .bl-editor-split { display: flex; flex-direction: column; overflow: hidden; padding: 0; }
+[data-module="band-lineup"] .bl-pane { overflow: auto; overscroll-behavior: contain; padding: 8px 10px; }
+[data-module="band-lineup"] .bl-board-pane { flex: 0 0 auto; max-height: 55%; border-bottom: 2px solid var(--border); }
+[data-module="band-lineup"] .bl-lib-pane { flex: 1 1 0; min-height: 30%; }
+[data-module="band-lineup"] .bl-lib-search {
+  display: block; width: 100%; box-sizing: border-box; margin: 0 0 8px; padding: 6px 10px;
+  border: 1px solid var(--border); border-radius: 6px; background: var(--panel); color: var(--text); font: inherit; font-size: 0.85em;
+}
+[data-module="band-lineup"] .bl-lib-search:focus { outline: none; border-color: var(--accent); }
+[data-module="band-lineup"] .bl-board-pane .bl-edit-board { margin: 0; }
+[data-module="band-lineup"] .bl-lib-pane .bl-library { border-top: 0; padding-top: 0; }
+[data-module="band-lineup"] .bl-board-pane .bl-edit-photo { aspect-ratio: 1 / 1; }

modules/overflow-tap/client.js

@@ -0,0 +1,222 @@
+/* Overflow Tap — the tile.
+ *
+ * One fact matters across a booth: which keyword Tap is on right now. That
+ * is the big line. Under it, the destination it maps to and the groups it
+ * moved; a small line says whether the slide on screen carries a keyword at
+ * all; and the last four switches sit at the bottom with their times, so a
+ * tech can see the service's trail. Whether the last switch landed is the
+ * corner dot's to say — red when Overflow refused it and the module's own
+ * retries did not fix that — never a line of text in the tile.
+ *
+ * Everything comes from the server's `state` stream. The tile never talks to
+ * ProPresenter or Overflow itself.
+ */
+
+const HISTORY_SHOWN = 4;
+
+const ICON_REFRESH = '<svg viewBox="0 0 16 16" width="13" height="13" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round"><path d="M13.5 8a5.5 5.5 0 1 1-1.6-3.9"/><path d="M13.5 2.5v3h-3"/></svg>';
+
+export default function create({ root, moduleApi }) {
+  let state = null;
+  let stream = null;
+  let refreshBtn = null;
+  let streamDown = false; // the shared ProdDash stream dropped; cleared by the next state
+
+  const settings = () => moduleApi.instanceSettings || {};
+  const on = (key) => settings()[key] !== false;
+
+  function el(tag, className, text) {
+    const node = document.createElement(tag);
+    if (className) node.className = className;
+    if (text !== undefined && text !== null) node.textContent = text;
+    return node;
+  }
+
+  function clock(ms) {
+    if (!ms) return '';
+    try {
+      return new Date(ms).toLocaleTimeString([], { hour: '2-digit', minute: '2-digit', second: '2-digit' });
+    } catch {
+      return '';
+    }
+  }
+
+  /** The one-line reason the tile cannot do its job, or '' when it can. */
+  function blocker() {
+    if (!state) return 'Waiting for ProdDash';
+    const pp = state.propresenter || {};
+    const of = state.overflow || {};
+    if (!pp.configured) return 'No ProPresenter host — set one in /admin';
+    if (!of.configured) return 'No Overflow login — add it in /admin';
+    if (of.reachable && !(state.keywords || []).length) return 'No keyword mappings in the Overflow Dashboard yet';
+    return '';
+  }
+
+  function render() {
+    root.textContent = '';
+    const box = el('div', 'ot-root');
+    root.append(box);
+
+    const stop = blocker();
+    if (stop) {
+      box.append(el('div', 'ot-empty', stop));
+      return;
+    }
+
+    const pp = state.propresenter || {};
+    const of = state.overflow || {};
+    const cur = state.current;
+    const offline = streamDown || !pp.reachable || !of.reachable;
+
+    if (offline) {
+      box.classList.add('is-offline');
+      const why = streamDown ? 'ProdDash connection lost'
+        : !of.reachable ? (of.error || 'Overflow unreachable')
+          : (pp.error ? `ProPresenter unreachable — ${pp.error}` : 'ProPresenter unreachable');
+      box.append(el('div', 'ot-offline', why));
+    }
+
+    // The keyword Tap is on, its destination and the groups moved. No status
+    // words here: how the switch went is the corner dot's job (its hover
+    // carries the reason), and the trail's ✓ / ✕ keeps the record. The
+    // keyword's colour follows along — dimmed while a switch is in flight,
+    // red once Overflow has refused it for good.
+    const main = el('div', 'ot-main');
+    if (cur) {
+      main.dataset.tone = cur.pending ? 'muted' : (cur.ok ? 'ok' : 'alert');
+      main.append(el('div', 'ot-keyword', cur.keyword));
+      if (on('showDestination')) main.append(el('div', 'ot-dest', cur.destination || ''));
+      if (on('showGroups') && cur.groups && cur.groups.length) main.append(el('div', 'ot-groups', cur.groups.join(' · ')));
+    } else {
+      main.dataset.tone = 'muted';
+      main.append(el('div', 'ot-keyword is-none', '—'));
+      main.append(el('div', 'ot-dest', 'No keyword sent yet'));
+    }
+    box.append(main);
+
+    if (on('showSlide')) {
+      const slide = state.slide || {};
+      const ann = state.announcement || {};
+      const slideKeys = Array.isArray(slide.keywords) ? slide.keywords : [];
+      const annKeys = Array.isArray(ann.keywords) ? ann.keywords : [];
+      let text;
+      let cls = 'ot-slide';
+      if (!pp.reachable) { text = 'ProPresenter: not answering'; cls += ' is-muted'; }
+      else if (!slide.live && !ann.live) { text = 'Nothing live in ProPresenter'; cls += ' is-muted'; }
+      else if (slideKeys.length || annKeys.length) {
+        const parts = [];
+        if (slideKeys.length) parts.push(`This slide: ${slideKeys.join(' + ')}`);
+        if (annKeys.length) parts.push(`Announcement: ${annKeys.join(' + ')}`);
+        text = parts.join(' · ');
+        cls += ' is-hit';
+      } else if (slide.live) { text = slide.hasNotes ? 'This slide: no keyword' : 'This slide: no notes'; cls += ' is-muted'; }
+      else { text = 'Announcement: no keyword'; cls += ' is-muted'; }
+      box.append(el('div', cls, text));
+    }
+
+    if (on('showHistory')) {
+      const rows = (state.history || []).slice(0, HISTORY_SHOWN);
+      const list = el('ol', 'ot-history');
+      if (!rows.length) {
+        list.append(el('li', 'ot-h-empty', cur ? 'No earlier switches' : 'No switches yet'));
+      }
+      for (const h of rows) {
+        const row = el('li', `ot-h-row${h.ok ? '' : ' is-failed'}`);
+        row.title = h.ok
+          ? `${h.keyword} → ${h.destination || ''}${h.groups && h.groups.length ? ` on ${h.groups.join(', ')}` : ''}`
+          : `${h.keyword}: ${h.error || 'failed'}`;
+        row.append(el('span', 'ot-h-time', clock(h.at)));
+        row.append(el('span', 'ot-h-kw', h.keyword));
+        row.append(el('span', 'ot-h-dest', h.destination || ''));
+        row.append(el('span', 'ot-h-mark', h.ok ? '✓' : '✕'));
+        list.append(row);
+      }
+      box.append(list);
+    }
+  }
+
+  function applyStatus() {
+    if (!state) return moduleApi.setStatus('connecting', 'Waiting for ProdDash');
+    const s = state.status === 'ok' || state.status === 'connecting' || state.status === 'error' ? state.status : 'connecting';
+    moduleApi.setStatus(s, state.message || '');
+  }
+
+  function handleState(e) {
+    try {
+      state = JSON.parse(e.data);
+    } catch {
+      return;
+    }
+    streamDown = false;
+    applyStatus();
+    render();
+  }
+
+  async function backfill() {
+    try {
+      const res = await moduleApi.fetch('/state');
+      if (!res.ok) return;
+      const body = await res.json();
+      if (!body || !body.state || !stream) return;
+      state = body.state;
+      streamDown = false;
+      applyStatus();
+      render();
+    } catch {
+      /* the stream will bring the next state */
+    }
+  }
+
+  async function refresh() {
+    if (!refreshBtn) return;
+    refreshBtn.classList.add('active');
+    try {
+      const res = await moduleApi.fetch('/refresh', { method: 'POST' });
+      if (!res.ok) {
+        let why = `Keyword refresh failed (${res.status})`;
+        try { why = (await res.json()).error || why; } catch { /* keep the status */ }
+        moduleApi.setStatus('error', why);
+      }
+    } catch (err) {
+      moduleApi.setStatus('error', `Keyword refresh failed: ${err && err.message ? err.message : err}`);
+    } finally {
+      refreshBtn.classList.remove('active');
+    }
+  }
+
+  return {
+    start() {
+      moduleApi.setStatus('connecting', 'Connecting');
+      refreshBtn = moduleApi.header.addButton({
+        icon: ICON_REFRESH,
+        title: 'Refresh keywords',
+        onClick: refresh,
+      });
+      stream = moduleApi.sse('/stream', {
+        // A fresh connection replays the state; a tile joining a stream the
+        // page already carries gets only `open`, and the server sends state
+        // on change alone — so backfill, or a second tile waits for the next
+        // switch to draw anything.
+        open() { backfill(); },
+        error() {
+          moduleApi.setStatus('error', 'Lost the connection to ProdDash');
+          streamDown = true;
+          render();
+        },
+        events: { state: handleState },
+      });
+      render();
+    },
+
+    stop() {
+      if (stream) stream.close();
+      stream = null;
+      refreshBtn = null;
+      root.textContent = '';
+    },
+
+    onConfigChange() {
+      render();
+    },
+  };
+}

modules/overflow-tap/keywords.js

@@ -0,0 +1,66 @@
+'use strict';
+
+/**
+ * Keyword matching — which of Overflow's keywords a slide's notes carry.
+ *
+ * Pure functions, no I/O, so keywords.selftest.js can pin every rule down:
+ *
+ *   cleanNotes(raw)                 → the notes with ProPresenter's invisible padding removed
+ *   keywordMatches(notes, keyword)  → boolean
+ *   matchKeywords(notes, keywords)  → every keyword (in the order given) the notes carry
+ *   sameSet(a, b)                   → the two keyword lists hold the same keywords
+ *
+ * The rule is Overflow's own helper's: the notes are split into whitespace-
+ * separated words, each stripped of surrounding punctuation and lower-cased,
+ * and a keyword fires when it is one of those words. So `give` fires on
+ * "give", "Give!", "#give" and "(give)", and not on "forgiveness", "giveaway"
+ * or "give_now". Phrases work too, bounded the same way on both ends —
+ * something the helper cannot do, but nothing it would have matched is lost.
+ */
+
+const ZERO_WIDTH = /[​-‍⁠]/g;
+
+function cleanNotes(raw) {
+  return String(raw ?? '').replace(ZERO_WIDTH, '').replace(/\r\n?/g, '\n');
+}
+
+function norm(s) {
+  return String(s ?? '').trim().toLowerCase().replace(/\s+/g, ' ');
+}
+
+function escapeRe(s) {
+  return s.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+}
+
+function keywordMatches(notes, keyword) {
+  const n = cleanNotes(notes);
+  const k = norm(keyword);
+  if (!k || !n.trim()) return false;
+  const flat = n.toLowerCase().replace(/\s+/g, ' ');
+  const re = new RegExp(`(?:^|[^\\p{L}\\p{N}_])${escapeRe(k)}(?=$|[^\\p{L}\\p{N}_])`, 'u');
+  return re.test(flat);
+}
+
+/** Every keyword the notes carry, in the order the list gives them, each once. Entries may be strings or objects with a `keyword`. */
+function matchKeywords(notes, keywords) {
+  const out = [];
+  const seen = new Set();
+  for (const raw of keywords || []) {
+    const k = typeof raw === 'string' ? raw : raw && raw.keyword;
+    const key = norm(k);
+    if (!key || seen.has(key)) continue;
+    if (keywordMatches(notes, k)) {
+      seen.add(key);
+      out.push(String(k).trim());
+    }
+  }
+  return out;
+}
+
+function sameSet(a, b) {
+  const x = [...(a || [])].map(norm).sort();
+  const y = [...(b || [])].map(norm).sort();
+  return x.length === y.length && x.every((v, i) => v === y[i]);
+}
+
+module.exports = { cleanNotes, norm, keywordMatches, matchKeywords, sameSet };

modules/overflow-tap/keywords.selftest.js

@@ -0,0 +1,76 @@
+'use strict';
+
+/**
+ * Self-test for keywords.js — the matching rules, pinned.
+ *
+ *   node modules/overflow-tap/keywords.selftest.js
+ */
+
+const assert = require('node:assert/strict');
+const { keywordMatches, matchKeywords, sameSet, cleanNotes } = require('./keywords');
+
+let n = 0;
+function test(name, fn) {
+  n += 1;
+  try {
+    fn();
+    console.log(`ok   ${name}`);
+  } catch (err) {
+    console.log(`FAIL ${name}\n     ${err.message}`);
+    process.exitCode = 1;
+  }
+}
+
+test('a keyword fires as a word of the notes, whatever the case', () => {
+  assert.equal(keywordMatches('give', 'give'), true);
+  assert.equal(keywordMatches('Give', 'give'), true);
+  assert.equal(keywordMatches('please GIVE today', 'give'), true);
+});
+
+test('surrounding punctuation is ignored, as the helper strips it', () => {
+  assert.equal(keywordMatches('give!', 'give'), true);
+  assert.equal(keywordMatches('#give now', 'give'), true);
+  assert.equal(keywordMatches('go to (give) now', 'give'), true);
+  assert.equal(keywordMatches('"give"', 'give'), true);
+  assert.equal(keywordMatches('give.', 'give'), true);
+});
+
+test('a keyword inside another word does not fire', () => {
+  assert.equal(keywordMatches('a sermon on forgiveness', 'give'), false);
+  assert.equal(keywordMatches('giveaway', 'give'), false);
+  assert.equal(keywordMatches('give_now', 'give'), false);
+});
+
+test('a phrase keyword is bounded the same way', () => {
+  assert.equal(keywordMatches('Please fill out your Next   Steps card', 'next steps'), true);
+  assert.equal(keywordMatches('nextsteps', 'next steps'), false);
+});
+
+test('regex characters in a keyword are literal', () => {
+  assert.equal(keywordMatches('give.now', 'give.now'), true);
+  assert.equal(keywordMatches('giveXnow', 'give.now'), false);
+});
+
+test('empty notes never match; zero-width padding is ignored', () => {
+  assert.equal(keywordMatches('', 'give'), false);
+  assert.equal(keywordMatches('​', 'give'), false);
+  assert.equal(cleanNotes('​give'), 'give');
+  assert.equal(keywordMatches('​give', 'give'), true);
+});
+
+test('matchKeywords returns every hit, in list order, once each', () => {
+  const list = ['connect', 'give', 'prayer', { keyword: 'Events' }];
+  assert.deepEqual(matchKeywords('give and connect, then events', list), ['connect', 'give', 'Events']);
+  assert.deepEqual(matchKeywords('just worship', list), []);
+  assert.deepEqual(matchKeywords('give', []), []);
+  assert.deepEqual(matchKeywords('give give', ['give', 'GIVE']), ['give']);
+});
+
+test('sameSet compares keyword lists regardless of order and case', () => {
+  assert.equal(sameSet(['give', 'connect'], ['Connect', 'give']), true);
+  assert.equal(sameSet(['give'], ['give', 'connect']), false);
+  assert.equal(sameSet([], []), true);
+  assert.equal(sameSet(['give'], []), false);
+});
+
+console.log(`${n} tests, exit ${process.exitCode || 0}`);

modules/overflow-tap/module.json

@@ -0,0 +1,112 @@
+{
+  "id": "overflow-tap",
+  "name": "Overflow Tap",
+  "version": "1.0.0",
+  "proddash": ">=1.11.0",
+  "description": "Switches Overflow Tap destinations from keywords in ProPresenter slide notes",
+  "permissions": [
+    {
+      "kind": "local-network",
+      "reason": "Reaching ProPresenter on this network"
+    }
+  ],
+  "client": "client.js",
+  "server": "server.js",
+  "style": "style.css",
+  "minSize": {
+    "w": 2,
+    "h": 2
+  },
+  "defaultSize": {
+    "w": 4,
+    "h": 3
+  },
+  "configGroups": {
+    "ProPresenter": {
+      "help": "The ProPresenter whose slide notes carry the keywords. Enable the network in ProPresenter's Preferences › Network and enter the host and port shown there. Only the live slide's notes (and the announcement layer's) are read — nothing on the stage screens changes."
+    },
+    "Overflow": {
+      "collapsed": "whenSet",
+      "help": "An Overflow Dashboard login with Tap access — what Overflow's own ProPresenter helper app signs in with. Google sign-in does not work here: the account needs a password (Forgot Your Password? on the Dashboard sets one). The keywords, their destinations and their Tap groups are managed in the Dashboard under Integrations › ProPresenter › Keyword Mappings and read from there; after changing them, press the tile's refresh button or wait a few minutes."
+    },
+    "Alerts": {
+      "toggle": "alertEnabled",
+      "collapsed": true,
+      "help": "Flash the dashboards listening on this channel when a switch fails — Overflow unreachable or refusing the change — so someone can fix Tap by hand before the moment passes."
+    }
+  },
+  "configSchema": {
+    "propresenter": {
+      "type": "endpoint",
+      "label": "ProPresenter",
+      "group": "ProPresenter",
+      "default": {
+        "host": "",
+        "port": 1025
+      }
+    },
+    "password": {
+      "type": "password",
+      "label": "API password",
+      "group": "ProPresenter",
+      "default": "",
+      "help": "Only if a password is set in ProPresenter's network preferences."
+    },
+    "overflowEmail": {
+      "type": "string",
+      "label": "Email",
+      "group": "Overflow",
+      "default": ""
+    },
+    "overflowPassword": {
+      "type": "password",
+      "label": "Password",
+      "group": "Overflow",
+      "default": ""
+    },
+    "nonprofitId": {
+      "type": "string",
+      "label": "Nonprofit ID",
+      "group": "Overflow",
+      "default": "",
+      "help": "Leave blank: a church login carries its own. Only an @overflow.co staff login needs one."
+    },
+    "alertEnabled": {
+      "type": "switch",
+      "label": "Alert when a switch fails",
+      "group": "Alerts",
+      "default": false
+    },
+    "alertChannel": {
+      "type": "number",
+      "label": "Channel",
+      "group": "Alerts",
+      "default": 1,
+      "min": 1,
+      "max": 6,
+      "help": "1–6; each dashboard chooses the channels it listens to in its Layouts menu."
+    }
+  },
+  "instanceSchema": {
+    "showDestination": {
+      "type": "switch",
+      "label": "Destination",
+      "default": true
+    },
+    "showGroups": {
+      "type": "switch",
+      "label": "Groups",
+      "default": true
+    },
+    "showSlide": {
+      "type": "switch",
+      "label": "Slide match",
+      "default": true
+    },
+    "showHistory": {
+      "type": "switch",
+      "label": "History",
+      "default": true
+    }
+  }
+}

modules/overflow-tap/overflow.js

@@ -0,0 +1,174 @@
+'use strict';
+
+/**
+ * Overflow Dashboard API — the calls Overflow's own "ProPresenter Integration"
+ * helper app (1.2.3) makes, read from its bundle on 2026-10-11. None of this is
+ * in Overflow's public API reference (which documents only reads for Tap): it
+ * is the Dashboard's own backend, used with a Dashboard login — the same
+ * email and password the helper asks for. Google sign-in does not work here;
+ * the account needs a password (Overflow's article says the same).
+ *
+ *   POST /nonprofit-dashboard/authentication/login/jwt
+ *          { email, password } → { token }      a JWT; its payload carries
+ *          email, nonprofitId, permissions [{ action, subject }] (subject TAP
+ *          or all is required), nonprofits [...], exp
+ *   GET  /nonprofit-dashboard/propresenter/nonprofits/{nonprofitId}/keywords
+ *          → [ { keyword, destinationName, tapGroups: [{ id, tapGroupName }], … } ]
+ *          the Dashboard's Integrations › ProPresenter › Keyword Mappings
+ *   POST /nonprofit-dashboard/propresenter/nonprofits/{nonprofitId}/keywords?syncNonprofit=true
+ *          { keywords: ["give"] } → the same list, updated      THE SWITCH:
+ *          Overflow points the keyword's groups at its destination
+ *   GET  /nonprofit-dashboard/propresenter/nonprofits?search=&limit=
+ *   POST /nonprofit-dashboard/propresenter/nonprofits/{nonprofitId}/select
+ *          only for an @overflow.co staff login, which has no nonprofit of its
+ *          own and must pick one first
+ *
+ * Bearer auth on everything after login. A 401 means the session is gone —
+ * sign in again. The helper's own wording for a refused login is kept here
+ * (401 invalid email or password, 429 too many attempts, 403 locked).
+ *
+ * OVERFLOW_TAP_API_BASE=http://127.0.0.1:24720 points the client at
+ * tools/overflow-tap-mock.js.
+ */
+
+const DEFAULT_API_BASE = 'https://server.overflow.co';
+const API_BASE = String(process.env.OVERFLOW_TAP_API_BASE || DEFAULT_API_BASE).replace(/\/+$/, '');
+const DASH = '/nonprofit-dashboard';
+const TIMEOUT_MS = 10000;
+const TRIGGER_TIMEOUT_MS = 15000;
+
+class OverflowError extends Error {
+  constructor(message, { status = 0, retryable = false, auth = false } = {}) {
+    super(message);
+    this.name = 'OverflowError';
+    this.status = status;
+    this.retryable = retryable;
+    this.auth = auth; // the session was refused: sign in again before retrying
+  }
+}
+
+/** The JWT's payload, or null when the token is not one. No signature check — we only read our own session. */
+function decodeJwt(token) {
+  const parts = String(token || '').split('.');
+  if (parts.length !== 3) return null;
+  try {
+    const b64 = parts[1].replace(/-/g, '+').replace(/_/g, '/');
+    return JSON.parse(Buffer.from(b64, 'base64').toString('utf8'));
+  } catch {
+    return null;
+  }
+}
+
+/** What the module needs to know about a session, from its token. */
+function describeSession(token) {
+  const p = decodeJwt(token) || {};
+  const email = String(p.email || '');
+  const perms = Array.isArray(p.permissions) ? p.permissions : [];
+  const nonprofits = Array.isArray(p.nonprofits)
+    ? p.nonprofits.map((n) => ({ id: String((n && n.id) || ''), name: String((n && n.name) || '') })).filter((n) => n.id)
+    : [];
+  return {
+    email,
+    staff: email.toLowerCase().endsWith('@overflow.co'),
+    nonprofitId: p.nonprofitId ? String(p.nonprofitId) : '',
+    nonprofits,
+    hasTap: perms.some((x) => x && (x.subject === 'TAP' || x.subject === 'all')),
+    expiresAt: Number.isFinite(Number(p.exp)) ? Number(p.exp) * 1000 : 0,
+  };
+}
+
+function createOverflowClient({ fetchImpl = globalThis.fetch } = {}) {
+  async function request(method, path, { query, body, token, timeout = TIMEOUT_MS } = {}) {
+    const url = new URL(API_BASE + path);
+    for (const [k, v] of Object.entries(query || {})) {
+      if (v === undefined || v === null || v === '') continue;
+      url.searchParams.set(k, String(v));
+    }
+    const headers = { Accept: 'application/json' };
+    if (token) headers.Authorization = `Bearer ${token}`;
+    if (body !== undefined) headers['Content-Type'] = 'application/json';
+    const ctl = new AbortController();
+    const timer = setTimeout(() => ctl.abort(), timeout);
+    let res;
+    try {
+      res = await fetchImpl(url, { method, headers, body: body === undefined ? undefined : JSON.stringify(body), signal: ctl.signal });
+    } catch (err) {
+      const aborted = err && err.name === 'AbortError';
+      const cause = err && err.cause && (err.cause.code || err.cause.message);
+      throw new OverflowError(
+        aborted ? `Overflow did not answer within ${timeout / 1000} s` : `Overflow unreachable: ${err.message}${cause ? ` (${cause})` : ''}`,
+        { retryable: true },
+      );
+    } finally {
+      clearTimeout(timer);
+    }
+    const text = await res.text();
+    let data = null;
+    if (text) {
+      try { data = JSON.parse(text); } catch { data = null; }
+    }
+    if (!res.ok) {
+      const detail = data && (data.message || data.error || data.detail);
+      const what = Array.isArray(detail) ? detail.join('; ') : (detail ? String(detail) : '');
+      throw new OverflowError(what ? `Overflow answered ${res.status}: ${what}` : `Overflow answered ${res.status} ${res.statusText}`.trim(), {
+        status: res.status,
+        auth: res.status === 401,
+        retryable: res.status === 429 || res.status >= 500,
+      });
+    }
+    return data;
+  }
+
+  return {
+    base: API_BASE,
+
+    /** Sign in with a Dashboard login; resolves to the JWT. */
+    async login(email, password) {
+      try {
+        const data = await request('POST', `${DASH}/authentication/login/jwt`, { body: { email, password } });
+        const token = data && data.token;
+        if (!token || typeof token !== 'string') throw new OverflowError('Overflow sign-in answered without a token');
+        return token;
+      } catch (err) {
+        if (!(err instanceof OverflowError) || !err.status) throw err;
+        if (err.status === 401) throw new OverflowError('Overflow refused the sign-in: invalid email or password', { status: 401 });
+        if (err.status === 429) throw new OverflowError('Overflow refused the sign-in: too many attempts — wait a while', { status: 429, retryable: true });
+        if (err.status === 403) throw new OverflowError('Overflow refused the sign-in: account locked', { status: 403 });
+        throw err;
+      }
+    },
+
+    /** The Keyword Mappings for a nonprofit, as the Dashboard holds them. */
+    async listKeywords(token, nonprofitId) {
+      const data = await request('GET', `${DASH}/propresenter/nonprofits/${encodeURIComponent(nonprofitId)}/keywords`, { token });
+      return Array.isArray(data) ? data : [];
+    },
+
+    /** Tell Overflow these keywords are on screen; it moves their groups. Resolves to the updated list when one comes back. */
+    async trigger(token, nonprofitId, keywords) {
+      const data = await request('POST', `${DASH}/propresenter/nonprofits/${encodeURIComponent(nonprofitId)}/keywords`, {
+        query: { syncNonprofit: 'true' },
+        body: { keywords },
+        token,
+        timeout: TRIGGER_TIMEOUT_MS,
+      });
+      return Array.isArray(data) ? data : null;
+    },
+
+    /** Staff logins only: the nonprofits this login may act for. */
+    async searchNonprofits(token, search = '', limit = 10) {
+      const data = await request('GET', `${DASH}/propresenter/nonprofits`, { token, query: { search, limit } });
+      const list = (data && data.data && data.data.nonprofits) || (data && data.nonprofits) || (data && data.data) || data;
+      return Array.isArray(list)
+        ? list.map((n) => ({ id: String((n && n.id) || ''), name: String((n && n.name) || ''), slug: String((n && n.slug) || '') }))
+        : [];
+    },
+
+    /** Staff logins only: bind the session to one nonprofit before reading its keywords. */
+    selectNonprofit(token, nonprofitId) {
+      return request('POST', `${DASH}/propresenter/nonprofits/${encodeURIComponent(nonprofitId)}/select`, { token, body: {} });
+    },
+  };
+}
+
+module.exports = { createOverflowClient, OverflowError, decodeJwt, describeSession, API_BASE, DEFAULT_API_BASE };

modules/overflow-tap/server.js

@@ -0,0 +1,678 @@
+'use strict';
+
+/**
+ * Overflow Tap — server entry.
+ *
+ * Does what Overflow's "ProPresenter Integration" helper app does, inside
+ * ProdDash: watches the live slide in ProPresenter (the presentation layer
+ * and the announcement layer), and when its notes carry one of the keywords
+ * mapped in the Overflow Dashboard, tells Overflow — which points that
+ * keyword's Tap groups at its destination, so what people reach when they
+ * tap a disc follows what is on screen. A slide with no keyword changes
+ * nothing; the last destination stays until the next keyworded slide.
+ *
+ * A switch Overflow refuses is retried three times, ten seconds apart, with
+ * the tile's dot left alone meanwhile; only when those are spent does the
+ * dot go red (and the alert fire, if switched on) — the booth hears about a
+ * problem the module could not fix itself, not about every hiccup.
+ *
+ *   GET  /state      → the view-model every tile draws
+ *   GET  /stream     → SSE, `state` events on every change (heartbeated)
+ *   POST /refresh    → re-read the keyword mappings from the Dashboard now
+ *   GET  /keywords   → the mappings as read, for a look while setting up
+ *
+ * ProPresenter is polled (GET /v1/status/slide for the presentation layer,
+ * GET /v1/announcement/slide_index for announcements, once a second each —
+ * small requests, nothing heavier) because its chunked update stream is the
+ * thing that goes quiet without saying so. Overflow is the Dashboard's own
+ * API, signed in with a Dashboard login — the calls, and where they come
+ * from, are at the top of overflow.js. Keyword mappings are read on start,
+ * every few minutes after that, on /refresh, and from every trigger's answer.
+ *
+ * OVERFLOW_TAP_API_BASE=http://127.0.0.1:24720 points the module at
+ * tools/overflow-tap-mock.js, which also plays a ProPresenter on :1602.
+ */
+
+const crypto = require('crypto');
+const { createOverflowClient, OverflowError, describeSession } = require('./overflow');
+const { matchKeywords, sameSet, cleanNotes, norm } = require('./keywords');
+
+const POLL_MS = 1000;                  // ProPresenter, while it answers
+const RETRY_MS = 3000;                 // ProPresenter, while it does not
+const PP_TIMEOUT_MS = 4000;
+const HEARTBEAT_MS = 15000;
+const KEYWORDS_REFRESH_MS = 5 * 60 * 1000;
+const OVERFLOW_RETRY_MS = 30 * 1000;
+const LOGIN_MIN_GAP_MS = 20 * 1000;    // a refused sign-in is not retried sooner (429 = "too many attempts")
+const SESSION_MARGIN_MS = 60 * 1000;   // sign in again this long before the token expires
+const SWITCH_RETRY_MS = 10 * 1000;
+const SWITCH_RETRIES = 3;
+const HISTORY_MAX = 8;                 // the tile shows four; a few more for the hover
+const ALERT_SECONDS = 30;
+
+/** Set by init(), read by routes() — both are rebuilt together on a config save. */
+let current = null;
+
+/**
+ * The signed-in session, kept across re-inits for the same login: an admin
+ * saving config five times in a minute must not become five sign-ins
+ * (Overflow refuses that with 429). Keyed on a hash of the login, so a
+ * changed email or password starts fresh; the token itself never leaves the
+ * server process.
+ */
+let sessionCache = null; // { key, token, expiresAt, email, nonprofitId }
+
+function json(res, code, body) {
+  res.writeHead(code, { 'Content-Type': 'application/json; charset=utf-8', 'Cache-Control': 'no-store' });
+  res.end(JSON.stringify(body));
+}
+
+/** One line for a log or a tile; a fetch failure names its cause (ECONNREFUSED, ENOTFOUND…). */
+function describe(err) {
+  if (err instanceof OverflowError) return err.message;
+  if (err && err.name === 'AbortError') return 'timed out';
+  const msg = err && err.message ? err.message : String(err);
+  const cause = err && err.cause && (err.cause.code || err.cause.message);
+  return cause && !msg.includes(String(cause)) ? `${msg} (${cause})` : msg;
+}
+
+function unique(list) {
+  const seen = new Set();
+  const out = [];
+  for (const v of list) {
+    const k = norm(v);
+    if (!k || seen.has(k)) continue;
+    seen.add(k);
+    out.push(v);
+  }
+  return out;
+}
+
+/** The destination and group names Overflow attached to a keyword mapping, whatever the field names turn out to be. */
+function destinationOf(entry) {
+  return String((entry && (entry.destinationName || (entry.destination && entry.destination.name))) || '');
+}
+function groupsOf(entry) {
+  const list = entry && Array.isArray(entry.tapGroups) ? entry.tapGroups : [];
+  return list.map((g) => String((g && (g.tapGroupName || g.name || g.id)) || '')).filter(Boolean);
+}
+
+module.exports = {
+  init({ config, log, shell }) {
+    /* ── config ────────────────────────────────────────────────────── */
+    const ep = config.propresenter && typeof config.propresenter === 'object' ? config.propresenter : {};
+    const host = String(ep.host || '').trim();
+    const port = Number(ep.port) || 1025;
+    const ppPassword = String(config.password || '');
+    const email = String(config.overflowEmail || '').trim();
+    const ofPassword = String(config.overflowPassword || '');
+    const staffNonprofit = String(config.nonprofitId || '').trim();
+    const configured = Boolean(email && ofPassword);
+    const alertEnabled = Boolean(config.alertEnabled);
+    const alertChannel = Math.min(6, Math.max(1, Math.round(Number(config.alertChannel) || 1)));
+    const sessionKey = crypto.createHash('sha256').update(`${email}\n${ofPassword}`).digest('hex');
+
+    const overflow = createOverflowClient();
+
+    /* ── state ─────────────────────────────────────────────────────── */
+    const streams = new Set();
+    const timers = new Set();
+    let stopped = false;
+    let lastFrame = '';
+
+    let keywordCache = new Map(); // norm(keyword) → the Dashboard's entry
+    let session = null;           // { token, expiresAt, email, nonprofitId }
+    let lastLoginAt = 0;
+    let lastLoginError = null;
+    let wanted = null;            // the keywords Tap should be on: { keywords, keyword, destination, groups }
+    let inFlight = false;
+    let retriesLeft = 0;
+    let retryTimer = null;
+    let alertRaised = false;
+    /**
+     * Refusals in a row, across keywords. The retry budget is per keyword, but
+     * a service keeps bringing new keywords: if Overflow refuses every one of
+     * them, each would start a fresh budget and the dot would never go red.
+     * So the budget is also spent by refusals as a whole, and a success
+     * clears it.
+     */
+    let consecutiveFailures = 0;
+
+    // Presentation layer: the slide /v1/status/slide reports.
+    let lastSlideKey = null;
+    let lastSlide = null;
+    let lastPresKeywords = [];
+    // Announcement layer: the slide /v1/announcement/slide_index points at, read from /v1/announcement/active.
+    let annSupported = true;
+    let lastAnnKey = null;
+    let annNotes = '';
+    let annLive = false;
+    let lastAnnKeywords = [];
+
+    const state = {
+      status: 'connecting',
+      message: '',
+      propresenter: { configured: Boolean(host), reachable: false, error: '', host, port },
+      overflow: { configured, reachable: false, error: '', keywords: 0, loadedAt: 0 },
+      keywords: [],
+      slide: { live: false, keywords: [], hasNotes: false },
+      announcement: { live: false, keywords: [] },
+      current: null,
+      history: [],
+      updatedAt: 0,
+    };
+
+    /* ── timers that die with the handle ───────────────────────────── */
+
+    function later(fn, ms) {
+      const t = setTimeout(() => {
+        timers.delete(t);
+        if (!stopped) fn();
+      }, ms);
+      t.unref?.();
+      timers.add(t);
+      return t;
+    }
+
+    /* ── health, shared by the admin line and the tiles ────────────── */
+
+    function assess(forAdmin = false) {
+      const pp = state.propresenter;
+      const of = state.overflow;
+      if (!pp.configured) return ['error', 'No ProPresenter host configured — set one in /admin'];
+      if (!of.configured) return ['error', 'Overflow login not set — add the email and password in /admin'];
+      if (!of.reachable) return ['error', of.error || 'Signing in to Overflow…'];
+      if (!pp.reachable) return ['error', pp.error ? `ProPresenter unreachable: ${pp.error}` : 'Reaching ProPresenter…'];
+      if (!state.keywords.length) return ['error', 'No keyword mappings in the Overflow Dashboard (Integrations › ProPresenter)'];
+      // A refused switch the module is still retrying on its own is amber —
+      // being worked on; one it has given up on is red — the booth's problem.
+      const cur = state.current;
+      if (cur && !cur.ok && !cur.pending && !cur.retrying) {
+        return ['error', `Tap not switched to ${cur.keyword} — ${cur.error}`];
+      }
+      if (cur && !cur.ok && (cur.retrying || consecutiveFailures > 0)) {
+        return ['connecting', `Tap not switched to ${cur.keyword} yet — retrying (${consecutiveFailures} of ${SWITCH_RETRIES + 1} attempts failed): ${cur.error || 'in flight'}`];
+      }
+      const n = state.keywords.length;
+      const who = forAdmin && session && session.email ? `${session.email}, ` : '';
+      return ['ok', `Following ${host}:${port} · Overflow: ${who}${n} keyword${n === 1 ? '' : 's'}`];
+    }
+
+    function publish() {
+      if (stopped) return;
+      [state.status, state.message] = assess(false);
+      const { updatedAt, ...rest } = state;
+      let frame;
+      try {
+        frame = JSON.stringify(rest);
+      } catch {
+        return;
+      }
+      if (frame === lastFrame) return;
+      lastFrame = frame;
+      state.updatedAt = Date.now();
+      const payload = `event: state\ndata: ${JSON.stringify(state)}\n\n`;
+      for (const res of streams) {
+        try {
+          res.write(payload);
+        } catch {
+          streams.delete(res);
+        }
+      }
+    }
+
+    /* ── the Overflow session ──────────────────────────────────────── */
+
+    async function ensureSession() {
+      const now = Date.now();
+      if (session && now < session.expiresAt - SESSION_MARGIN_MS) return session;
+      if (sessionCache && sessionCache.key === sessionKey && now < sessionCache.expiresAt - SESSION_MARGIN_MS) {
+        session = sessionCache;
+        return session;
+      }
+      if (lastLoginError && now - lastLoginAt < LOGIN_MIN_GAP_MS) throw lastLoginError;
+      lastLoginAt = now;
+      let token;
+      try {
+        token = await overflow.login(email, ofPassword);
+      } catch (err) {
+        lastLoginError = err;
+        throw err;
+      }
+      lastLoginError = null;
+      const info = describeSession(token);
+      if (!info.hasTap) throw new OverflowError('This Overflow login has no Tap permission — use one with the Organization Admin or Tap Only role');
+      let nonprofitId = info.nonprofitId || (info.nonprofits.length === 1 ? info.nonprofits[0].id : '');
+      if (info.staff) {
+        if (!staffNonprofit) throw new OverflowError('An @overflow.co login has no nonprofit of its own — enter the Nonprofit ID in /admin');
+        await overflow.selectNonprofit(token, staffNonprofit);
+        nonprofitId = staffNonprofit;
+      } else if (!nonprofitId) {
+        nonprofitId = staffNonprofit;
+      }
+      if (!nonprofitId) throw new OverflowError('This Overflow login carries no nonprofit — enter the Nonprofit ID in /admin');
+      session = { token, expiresAt: info.expiresAt || now + 12 * 3600 * 1000, email: info.email || email, nonprofitId };
+      sessionCache = { key: sessionKey, ...session };
+      log(`signed in to Overflow as ${session.email} (nonprofit ${nonprofitId})`);
+      return session;
+    }
+
+    function dropSession() {
+      session = null;
+      if (sessionCache && sessionCache.key === sessionKey) sessionCache = null;
+    }
+
+    /** Run a signed-in call; when the session is refused, sign in again once and retry. */
+    async function withSession(fn) {
+      const s = await ensureSession();
+      try {
+        return await fn(s);
+      } catch (err) {
+        if (!(err instanceof OverflowError) || !err.auth) throw err;
+        dropSession();
+        const again = await ensureSession();
+        return fn(again);
+      }
+    }
+
+    /* ── the keyword mappings ──────────────────────────────────────── */
+
+    function rebuildKeywordView() {
+      state.keywords = [...keywordCache.values()].map((e) => ({
+        keyword: String(e.keyword).trim(),
+        destination: destinationOf(e),
+        groups: groupsOf(e),
+      }));
+      state.overflow.keywords = state.keywords.length;
+    }
+
+    /** Replace the cache with the Dashboard's list (`merge` folds a partial answer into it instead). */
+    function applyKeywordList(list, merge = false) {
+      const next = merge ? new Map(keywordCache) : new Map();
+      for (const entry of list || []) {
+        if (!entry || typeof entry !== 'object') continue;
+        const k = norm(entry.keyword);
+        if (!k) continue;
+        if (entry.active === false || entry.enabled === false || entry.isActive === false) {
+          next.delete(k);
+          continue;
+        }
+        next.set(k, entry);
+      }
+      keywordCache = next;
+      rebuildKeywordView();
+    }
+
+    let loading = null;
+    let refreshTimer = null;
+
+    async function loadKeywords() {
+      if (stopped || !configured) return;
+      if (loading) return loading;
+      loading = (async () => {
+        try {
+          const list = await withSession((s) => overflow.listKeywords(s.token, s.nonprofitId));
+          applyKeywordList(list);
+          state.overflow.reachable = true;
+          state.overflow.error = '';
+          state.overflow.loadedAt = Date.now();
+          reconsider(); // a slide already up when the mappings arrive takes effect now
+        } catch (err) {
+          state.overflow.reachable = false;
+          state.overflow.error = describe(err);
+          log(`Overflow: ${state.overflow.error}`);
+        }
+        publish();
+      })();
+      try {
+        await loading;
+      } finally {
+        loading = null;
+      }
+      if (stopped) return;
+      if (refreshTimer) {
+        clearTimeout(refreshTimer);
+        timers.delete(refreshTimer);
+      }
+      refreshTimer = later(loadKeywords, state.overflow.reachable ? KEYWORDS_REFRESH_MS : OVERFLOW_RETRY_MS);
+    }
+
+    /* ── the switch ────────────────────────────────────────────────── */
+
+    function describeTarget(keys) {
+      const entries = keys.map((k) => keywordCache.get(norm(k))).filter(Boolean);
+      return {
+        keywords: keys,
+        keyword: keys.join(' + '),
+        destination: unique(entries.map(destinationOf).filter(Boolean)).join(' + '),
+        groups: unique(entries.flatMap(groupsOf)),
+      };
+    }
+
+    function pushHistory(entry) {
+      const { pending, ...rest } = entry;
+      state.history.unshift(rest);
+      if (state.history.length > HISTORY_MAX) state.history.length = HISTORY_MAX;
+    }
+
+    function raiseAlert(keyword) {
+      if (!alertEnabled || !shell || typeof shell.alert !== 'function') return;
+      alertRaised = true;
+      Promise.resolve(shell.alert({ channel: alertChannel, level: 'medium', text: `Tap not switched: ${keyword}`, duration: ALERT_SECONDS }))
+        .catch((err) => log(`alert refused: ${describe(err)}`));
+    }
+
+    function clearAlert() {
+      if (!alertRaised || !shell || typeof shell.clearAlert !== 'function') return;
+      alertRaised = false;
+      Promise.resolve(shell.clearAlert(alertChannel)).catch(() => {});
+    }
+
+    function requestSwitch(target) {
+      wanted = target;
+      retriesLeft = SWITCH_RETRIES;
+      if (retryTimer) {
+        clearTimeout(retryTimer);
+        timers.delete(retryTimer);
+        retryTimer = null;
+      }
+      runSwitch();
+    }
+
+    async function runSwitch() {
+      if (stopped || inFlight || !wanted) return;
+      const target = wanted;
+      const cur = state.current;
+      const sameTarget = cur && sameSet(cur.keywords, target.keywords);
+      if (sameTarget && cur.ok) return; // already there
+      inFlight = true;
+      let entry;
+      if (sameTarget) {
+        entry = cur; // another go at the same switch
+      } else {
+        if (cur) pushHistory(cur);
+        entry = {
+          keyword: target.keyword,
+          keywords: target.keywords,
+          destination: target.destination,
+          groups: target.groups,
+          at: Date.now(),
+          ok: false,
+          pending: true,
+          retrying: false, // a retry is scheduled: the module is still trying to fix this itself
+          error: '',
+          attempts: 0,
+        };
+        state.current = entry;
+      }
+      entry.pending = true;
+      entry.attempts += 1;
+      publish();
+      try {
+        const answer = await withSession((s) => overflow.trigger(s.token, s.nonprofitId, target.keywords));
+        if (answer) {
+          applyKeywordList(answer, true);
+          const fresh = describeTarget(target.keywords);
+          entry.destination = fresh.destination || entry.destination;
+          entry.groups = fresh.groups.length ? fresh.groups : entry.groups;
+        }
+        entry.ok = true;
+        entry.error = '';
+        entry.retrying = false;
+        entry.at = Date.now();
+        consecutiveFailures = 0;
+        clearAlert();
+        log(`Tap → ${entry.destination || '?'} (${target.keyword})${entry.groups.length ? ` on ${entry.groups.join(', ')}` : ''}`);
+      } catch (err) {
+        if (stopped) return;
+        entry.ok = false;
+        entry.error = describe(err);
+        consecutiveFailures += 1;
+        if (retriesLeft > 0 && consecutiveFailures <= SWITCH_RETRIES) {
+          // Still the module's problem: try again shortly; the dot goes amber.
+          retriesLeft -= 1;
+          entry.retrying = true;
+          log(`Tap not switched to ${target.keyword}: ${entry.error} — retrying in ${SWITCH_RETRY_MS / 1000} s`);
+          retryTimer = later(() => {
+            retryTimer = null;
+            runSwitch();
+          }, SWITCH_RETRY_MS);
+        } else {
+          // Out of retries: now it is the booth's problem — red dot, and the
+          // alert if the operator asked for one (raised once per outage, not
+          // again for every further keyword Overflow refuses).
+          entry.retrying = false;
+          log(`Tap not switched to ${target.keyword}: ${entry.error} — giving up after ${consecutiveFailures} refusals`);
+          if (!alertRaised) raiseAlert(target.keyword);
+        }
+      } finally {
+        entry.pending = false;
+        inFlight = false;
+        publish();
+        if (!stopped && wanted !== target) runSwitch(); // a newer keyword arrived meanwhile
+      }
+    }
+
+    /* ── what is on screen, and what to do about it ────────────────── */
+
+    /**
+     * The helper's rule, per layer: when the set of keywords the layer's
+     * slide carries changes to a non-empty set, send it. Returning to a
+     * keyword after a slide without one sends it again; staying on the same
+     * keyword across slides sends nothing.
+     */
+    function reconsider() {
+      const list = [...keywordCache.values()];
+      const presNotes = lastSlide ? cleanNotes(lastSlide.notes) : '';
+      const presKeys = lastSlide ? matchKeywords(presNotes, list) : [];
+      state.slide = { live: Boolean(lastSlide), keywords: presKeys, hasNotes: Boolean(presNotes.trim()) };
+      const presChanged = !sameSet(presKeys, lastPresKeywords);
+      if (presChanged) lastPresKeywords = presKeys;
+
+      const annKeys = annLive ? matchKeywords(annNotes, list) : [];
+      state.announcement = { live: annLive, keywords: annKeys };
+      const annChanged = !sameSet(annKeys, lastAnnKeywords);
+      if (annChanged) lastAnnKeywords = annKeys;
+
+      const batch = [];
+      if (presChanged && presKeys.length) batch.push(...presKeys);
+      if (annChanged && annKeys.length) batch.push(...annKeys);
+      if (batch.length) requestSwitch(describeTarget(unique(batch)));
+    }
+
+    /* ── ProPresenter ──────────────────────────────────────────────── */
+
+    function ppUrl(target) {
+      const u = new URL(`http://${host}:${port}${target}`);
+      if (ppPassword) u.searchParams.set('password', ppPassword);
+      return u;
+    }
+
+    async function ppJson(target) {
+      const ctl = new AbortController();
+      const timer = setTimeout(() => ctl.abort(), PP_TIMEOUT_MS);
+      try {
+        const res = await fetch(ppUrl(target), { headers: { Accept: 'application/json' }, signal: ctl.signal });
+        if (!res.ok) {
+          const err = new Error(`ProPresenter ${res.status} ${res.statusText}`);
+          err.status = res.status;
+          throw err;
+        }
+        const text = await res.text();
+        return text ? JSON.parse(text) : null;
+      } finally {
+        clearTimeout(timer);
+      }
+    }
+
+    /** The presentation layer: /v1/status/slide names the live slide and carries its notes. */
+    async function pollSlide() {
+      const data = await ppJson('/v1/status/slide');
+      const cur = data && data.current && typeof data.current === 'object' ? data.current : null;
+      const key = cur ? `${cur.uuid || ''}\u0000${cur.text || ''}\u0000${cur.notes || ''}` : '';
+      if (key === lastSlideKey) return false;
+      lastSlideKey = key;
+      lastSlide = cur;
+      return true;
+    }
+
+    /**
+     * The announcement layer: its slide index names the document and the
+     * slide; the document's slides (every group's, in order, disabled ones
+     * included — that is the index's space) carry the notes. An older
+     * ProPresenter without this API answers 404 once and is left alone.
+     */
+    async function pollAnnouncement() {
+      if (!annSupported) return false;
+      let idx;
+      try {
+        idx = await ppJson('/v1/announcement/slide_index');
+      } catch (err) {
+        if (err && err.status === 404) {
+          annSupported = false;
+          log('this ProPresenter has no announcement layer API — following the presentation layer only');
+          return false;
+        }
+        throw err;
+      }
+      const node = idx && idx.announcement_index;
+      if (!node || !Number.isInteger(node.index)) {
+        if (lastAnnKey === '') return false;
+        lastAnnKey = '';
+        annLive = false;
+        annNotes = '';
+        return true;
+      }
+      const id = node.presentation_id || {};
+      const key = `${id.uuid || ''}\u0000${id.name || ''}\u0000${node.index}`;
+      if (key === lastAnnKey) return false;
+      const doc = await ppJson('/v1/announcement/active');
+      const ann = doc && doc.announcement;
+      const slides = [];
+      for (const g of (ann && Array.isArray(ann.groups) ? ann.groups : [])) {
+        for (const s of (g && Array.isArray(g.slides) ? g.slides : [])) slides.push(s);
+      }
+      const slide = slides[node.index];
+      annNotes = slide ? cleanNotes(slide.notes) : '';
+      annLive = true;
+      lastAnnKey = key;
+      return true;
+    }
+
+    async function pollTick() {
+      if (stopped) return;
+      let ok = false;
+      let changed = false;
+      try {
+        changed = await pollSlide();
+        state.propresenter.reachable = true;
+        state.propresenter.error = '';
+        ok = true;
+        try {
+          if (await pollAnnouncement()) changed = true;
+        } catch {
+          /* the presentation poll already said ProPresenter answers; a hiccup here waits for the next tick */
+        }
+      } catch (err) {
+        state.propresenter.reachable = false;
+        state.propresenter.error = err && err.name === 'AbortError' ? 'timed out' : describe(err);
+      }
+      if (changed) reconsider();
+      publish();
+      later(pollTick, ok ? POLL_MS : RETRY_MS);
+    }
+
+    /* ── go ────────────────────────────────────────────────────────── */
+
+    if (host) {
+      pollTick();
+      log(`following ProPresenter at ${host}:${port}`);
+    } else {
+      log('no ProPresenter host configured — set one in /admin');
+    }
+    if (configured) {
+      loadKeywords();
+      log(`Overflow at ${overflow.base}`);
+    } else {
+      log('Overflow login not set — add the email and password in /admin');
+    }
+    publish();
+
+    const heartbeat = setInterval(() => {
+      for (const res of streams) {
+        try {
+          res.write(': ping\n\n');
+        } catch {
+          streams.delete(res);
+        }
+      }
+    }, HEARTBEAT_MS);
+    heartbeat.unref?.();
+
+    const handle = {
+      streams,
+      configured,
+      getState: () => state,
+      refresh: () => loadKeywords(),
+    };
+    current = handle;
+
+    return {
+      stop() {
+        stopped = true;
+        clearInterval(heartbeat);
+        for (const t of timers) clearTimeout(t);
+        timers.clear();
+        clearAlert();
+        for (const res of streams) {
+          try { res.end(); } catch { /* already gone */ }
+        }
+        streams.clear();
+        if (current === handle) current = null;
+      },
+      health() {
+        const [status, message] = assess(true);
+        return { status, message };
+      },
+    };
+  },
+
+  routes() {
+    return {
+      'GET /state': (req, res) => {
+        if (!current) return json(res, 503, { error: 'Overflow Tap is not running.' });
+        json(res, 200, { state: current.getState() });
+      },
+
+      'GET /stream': (req, res) => {
+        res.writeHead(200, {
+          'Content-Type': 'text/event-stream; charset=utf-8',
+          'Cache-Control': 'no-cache, no-transform',
+          Connection: 'keep-alive',
+          'X-Accel-Buffering': 'no',
+        });
+        res.write('retry: 3000\n\n');
+        if (!current) return void res.end();
+        res.write(`event: state\ndata: ${JSON.stringify(current.getState())}\n\n`);
+        try { req.socket.setKeepAlive(true, 15000); } catch { /* gone */ }
+        current.streams.add(res);
+        req.on('close', () => current && current.streams.delete(res));
+      },
+
+      'POST /refresh': async (req, res) => {
+        if (!current) return json(res, 503, { error: 'Overflow Tap is not running.' });
+        if (!current.configured) return json(res, 400, { error: 'Overflow login is not set.' });
+        await current.refresh();
+        const st = current.getState();
+        if (!st.overflow.reachable) return json(res, 502, { error: st.overflow.error || 'Overflow unreachable.' });
+        json(res, 200, { ok: true, keywords: st.overflow.keywords });
+      },
+
+      'GET /keywords': (req, res) => {
+        if (!current) return json(res, 503, { error: 'Overflow Tap is not running.' });
+        const st = current.getState();
+        json(res, 200, { keywords: st.keywords, loadedAt: st.overflow.loadedAt, error: st.overflow.error });
+      },
+    };
+  },
+};

modules/overflow-tap/style.css

@@ -0,0 +1,186 @@
+/* Overflow Tap — scoped under its tile via [data-module="overflow-tap"] and
+   styled with the shell's variables only. Sizes hang off the tile (container
+   units) so the keyword reads from across a booth on a big tile and still
+   fits a 2×2. */
+
+[data-module="overflow-tap"] {
+  container-type: size;
+}
+
+[data-module="overflow-tap"] .ot-root {
+  position: absolute;
+  inset: 0;
+  display: flex;
+  flex-direction: column;
+  align-items: stretch;
+  padding: clamp(4px, 4cqmin, 18px);
+  gap: clamp(2px, 1.8cqmin, 10px);
+  overflow: hidden;
+  color: var(--text);
+  user-select: none;
+  -webkit-user-select: none;
+}
+
+[data-module="overflow-tap"] .ot-offline {
+  flex-shrink: 0;
+  font-size: clamp(0.6rem, 4.6cqmin, 0.9rem);
+  font-weight: 700;
+  color: var(--danger);
+  text-transform: uppercase;
+  letter-spacing: 0.04em;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+[data-module="overflow-tap"] .ot-root.is-offline .ot-main,
+[data-module="overflow-tap"] .ot-root.is-offline .ot-slide,
+[data-module="overflow-tap"] .ot-root.is-offline .ot-history {
+  opacity: 0.45;
+  filter: grayscale(0.6);
+}
+
+/* ── the live keyword ───────────────────────────────────────────── */
+
+[data-module="overflow-tap"] .ot-main {
+  --tone: var(--accent);
+  flex: 1 1 auto;
+  min-height: 0;
+  container-type: size;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 0;
+  text-align: center;
+  overflow: hidden;
+}
+[data-module="overflow-tap"] .ot-main[data-tone="ok"] { --tone: var(--accent); }
+[data-module="overflow-tap"] .ot-main[data-tone="warn"] { --tone: var(--warn); }
+[data-module="overflow-tap"] .ot-main[data-tone="alert"] { --tone: var(--danger); }
+[data-module="overflow-tap"] .ot-main[data-tone="muted"] { --tone: var(--muted); }
+
+[data-module="overflow-tap"] .ot-keyword {
+  color: var(--tone);
+  font-size: min(clamp(1rem, 44cqh, 7rem), 18cqw);
+  font-weight: 750;
+  line-height: 1.15;
+  max-width: 100%;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+[data-module="overflow-tap"] .ot-keyword.is-none { color: var(--muted); }
+[data-module="overflow-tap"] .ot-main[data-tone="muted"] .ot-keyword {
+  animation: ot-pulse 1.2s ease-in-out infinite;
+}
+@keyframes ot-pulse {
+  0%, 100% { opacity: 1; }
+  50% { opacity: 0.45; }
+}
+
+[data-module="overflow-tap"] .ot-dest {
+  color: var(--text);
+  font-size: min(clamp(0.7rem, 16cqh, 1.9rem), 8cqw);
+  font-weight: 600;
+  line-height: 1.2;
+  max-width: 100%;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+[data-module="overflow-tap"] .ot-main[data-tone="muted"] .ot-dest { color: var(--muted); font-weight: 500; }
+
+[data-module="overflow-tap"] .ot-groups {
+  color: var(--muted);
+  font-size: clamp(0.5rem, 9cqh, 0.95rem);
+  line-height: 1.3;
+  flex-shrink: 0;
+  max-width: 100%;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+/* ── this slide ─────────────────────────────────────────────────── */
+
+[data-module="overflow-tap"] .ot-slide {
+  flex-shrink: 0;
+  text-align: center;
+  font-size: clamp(0.55rem, 4.8cqmin, 0.95rem);
+  color: var(--text);
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  padding: 0.25em 0.6em;
+  border-radius: 999px;
+  background: color-mix(in srgb, var(--text) 7%, transparent);
+  align-self: center;
+  max-width: 100%;
+}
+[data-module="overflow-tap"] .ot-slide.is-muted { color: var(--muted); }
+[data-module="overflow-tap"] .ot-slide.is-hit {
+  color: var(--accent-text);
+  background: color-mix(in srgb, var(--accent) 80%, transparent);
+  font-weight: 650;
+}
+[data-module="overflow-tap"] .ot-slide.is-warn {
+  color: var(--warn);
+  background: color-mix(in srgb, var(--warn) 16%, transparent);
+}
+
+/* ── the trail ──────────────────────────────────────────────────── */
+
+[data-module="overflow-tap"] .ot-history {
+  flex-shrink: 0;
+  list-style: none;
+  margin: 0;
+  padding: 0.3em 0 0;
+  border-top: 1px solid var(--border);
+  font-size: clamp(0.55rem, 4.6cqmin, 0.95rem);
+  display: flex;
+  flex-direction: column;
+  gap: 0.1em;
+}
+
+[data-module="overflow-tap"] .ot-h-row {
+  display: grid;
+  grid-template-columns: auto minmax(0, 1fr) minmax(0, 1.4fr) auto;
+  align-items: baseline;
+  gap: 0 0.7em;
+  color: var(--text);
+}
+[data-module="overflow-tap"] .ot-h-row.is-failed .ot-h-kw,
+[data-module="overflow-tap"] .ot-h-row.is-failed .ot-h-mark { color: var(--danger); }
+[data-module="overflow-tap"] .ot-h-time {
+  color: var(--muted);
+  font-variant-numeric: tabular-nums;
+}
+[data-module="overflow-tap"] .ot-h-kw { font-weight: 650; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+[data-module="overflow-tap"] .ot-h-dest { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+[data-module="overflow-tap"] .ot-h-mark { color: var(--accent); font-weight: 700; }
+[data-module="overflow-tap"] .ot-h-empty { color: var(--muted); text-align: center; }
+
+/* On a short tile the trail would crowd the keyword out: keep the
+   keyword, drop the trail. Inside the keyword block the same rule: when
+   it is short, the small lines go before the keyword does. */
+@container (max-height: 120px) {
+  [data-module="overflow-tap"] .ot-history { display: none; }
+}
+@container (max-height: 70px) {
+  [data-module="overflow-tap"] .ot-groups { display: none; }
+}
+@container (max-height: 46px) {
+  [data-module="overflow-tap"] .ot-dest { display: none; }
+}
+
+[data-module="overflow-tap"] .ot-empty {
+  position: absolute;
+  inset: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 6%;
+  color: var(--muted);
+  text-align: center;
+  font-size: clamp(0.65rem, 5.5cqmin, 1rem);
+}

modules/pco-plan/client.js

@@ -14,6 +14,7 @@
 
 import createTeams from "./teams-client.js";
 import createKey from "./key-client.js";
+import { viewOf, onViewedType, addServiceTypeSwitch } from "./viewed-type.js";
 import { prettyKey } from "./key-notation.js";
 
 const REFRESH_SVG = '<svg viewBox="0 0 24 24" width="14" height="14" fill="none" stroke="currentColor" stroke-width="2.2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 12a9 9 0 1 1-2.64-6.36"/><path d="M21 3v6h-6"/></svg>';
@@ -38,6 +39,10 @@ function createPlan({ root, moduleApi }) {
   let lastCurrentId = null;
   let lastListKey = '';
   let absView = null;         // what the server says AbleSet is doing, if anything
+  // The plan this dashboard is looking at — usually the one the server
+  // follows, otherwise one of the others it also reads.
+  let view = viewOf(null);
+  let offViewed = null;
   let userScrolledAt = 0;
 
   root.innerHTML = `
@@ -89,6 +94,7 @@ function createPlan({ root, moduleApi }) {
     moduleApi.saveInstanceSettings({ textSize: Math.min(40, Math.max(9, size + delta)) });
     applyPrefs();
   }
+  const switcher = addServiceTypeSwitch({ moduleApi, getState: () => state });
   moduleApi.header.addButton({ icon: MINUS_SVG, title: 'Smaller text', onClick: () => bumpTextSize(-1) });
   moduleApi.header.addButton({ icon: PLUS_SVG, title: 'Larger text', onClick: () => bumpTextSize(1) });
 
@@ -144,7 +150,7 @@ function createPlan({ root, moduleApi }) {
   /* ── which items to show ────────────────────────────────────────── */
 
   function visibleItems() {
-    const items = Array.isArray(state?.items) ? state.items : [];
+    const items = Array.isArray(view.items) ? view.items : [];
     return items.filter((it) => {
       if (it.itemType === 'header' && !on('showHeaders')) return false;
       if (it.servicePosition === 'pre' && !on('showPreService')) return false;
@@ -194,14 +200,14 @@ function createPlan({ root, moduleApi }) {
 
   /** Placeholder → text; a hidden or empty value resolves to '' and drops its segment. */
   function templateValues() {
-    const plan = state?.plan || {};
+    const plan = view.plan || {};
     const items = state?.items || [];
     const planned = plannedLength();
     return {
       series: on('showSeries') ? plan.seriesTitle || '' : '',
       part: on('showPart') ? plan.title || '' : '',
       title: on('showPart') ? plan.title || '' : '',
-      servicetype: on('showServiceType') ? state?.serviceType?.name || '' : '',
+      servicetype: on('showServiceType') ? view.name || '' : '',
       date: on('showDate') ? plan.dates || '' : '',
       shortdate: on('showDate') ? plan.shortDates || plan.dates || '' : '',
       time: on('showServiceTime') && plan.serviceStartsAt
@@ -239,12 +245,12 @@ function createPlan({ root, moduleApi }) {
   }
 
   function renderHead() {
-    const plan = state?.plan;
+    const plan = view.plan;
     const show = on('showTopBar') && plan;
     headEl.hidden = !show;
     if (!show) return;
     const [line1, line2] = renderTemplate(cfg().headerTemplate, templateValues());
-    planTitleEl.textContent = line1 || line2 || state.serviceType?.name || 'Plan';
+    planTitleEl.textContent = line1 || line2 || view.name || 'Plan';
     planSubEl.textContent = line1 ? line2 || '' : '';
     planSubEl.hidden = !planSubEl.textContent;
     renderClock();
@@ -258,9 +264,12 @@ function createPlan({ root, moduleApi }) {
    * time once it has ended.
    */
   function renderClock() {
-    const plan = state?.plan;
-    const live = state?.live || {};
-    const svc = state?.service || {};
+    const plan = view.plan;
+    const live = view.live ? (state?.live || {}) : {};
+    // The service window belongs to the type being followed. Another type's
+    // plan must not borrow its clock — it would read as that service running.
+    // With none, the fall-through below shows that plan's own start time.
+    const svc = view.live ? (state?.service || {}) : {};
     clockLabelEl.textContent = '';
     clockValueEl.textContent = '';
     clockValueEl.className = 'pp-clock-value';
@@ -272,7 +281,7 @@ function createPlan({ root, moduleApi }) {
       clockValueEl.textContent = fmtDur((now - startedAt) / 1000);
       if (live.following) {
         // Ahead of / behind the plan: elapsed minus what the completed items were planned to take.
-        const done = state.items.filter((it) => live.history?.[it.id]?.endedAt);
+        const done = view.items.filter((it) => live.history?.[it.id]?.endedAt);
         const planned = done.reduce((sum, it) => sum + (it.length || 0), 0);
         const actual = done.reduce((sum, it) => sum + (live.history[it.id].endedAt - live.history[it.id].startedAt) / 1000, 0);
         const drift = actual - planned;
@@ -321,13 +330,13 @@ function createPlan({ root, moduleApi }) {
         link: { href: '/admin', text: 'Open Admin' },
       };
     }
-    if (!state.reachable && !state.plan) {
+    if (!state.reachable && !view.plan) {
       return { title: state.lastFetched ? 'Planning Center unavailable' : 'Reading the plan…', hint: state.lastError || '' };
     }
-    if (!state.plan) {
+    if (!view.plan) {
       return {
         title: 'No plan found',
-        hint: `${state.serviceType?.name || 'This service type'} has no upcoming or recent plans in Planning Center.`,
+        hint: `${view.name || 'This service type'} has no upcoming or recent plans in Planning Center.`,
       };
     }
     if (!visibleItems().length) return { title: 'Nothing to show', hint: 'Every item is hidden by this tile’s settings (gear menu).' };
@@ -483,7 +492,7 @@ function createPlan({ root, moduleApi }) {
 
     // Rebuild rows only when the plan content or the display settings
     // changed; live highlighting and timers are applied in place.
-    const key = JSON.stringify([state.plan.id, state.items, cfg(), state.live?.following]);
+    const key = JSON.stringify([view.id, view.plan.id, view.items, cfg(), view.live && state.live?.following]);
     if (key !== lastListKey) {
       lastListKey = key;
       listEl.innerHTML = '';
@@ -523,6 +532,7 @@ function createPlan({ root, moduleApi }) {
   /** The row AbleSet's song belongs to — only ever the current one. */
   function absRow() {
     const a = absView;
+    if (!view.live) return null;   // another service type is on screen
     if (!a || !a.available || !a.reachable || !a.song || !a.itemId) return null;
     if (a.itemId !== lastCurrentId) return null;
     return listEl.querySelector(`.pp-row[data-id="${CSS.escape(a.itemId)}"]`) || null;
@@ -627,15 +637,17 @@ function createPlan({ root, moduleApi }) {
 
   /** Current / done classes and the elapsed timers, without rebuilding rows. */
   function renderLiveMarks() {
-    const live = state?.live || {};
+    // Only the followed service type has a live item: this dashboard may be
+    // looking at another one, which has no ProPresenter and no clock.
+    const live = view.live ? (state?.live || {}) : {};
     const now = serverNow();
     const currentId = live.following ? live.currentItemId || '' : '';
     const history = live.history || {};
-    const byId = new Map(state.items.map((it) => [it.id, it]));
+    const byId = new Map(view.items.map((it) => [it.id, it]));
     // Everything before the current item counts as done, matched or not.
     const doneIds = new Set();
     if (currentId) {
-      for (const it of state.items) {
+      for (const it of view.items) {
         if (it.id === currentId) break;
         if (it.itemType !== 'header') doneIds.add(it.id);
       }
@@ -676,8 +688,8 @@ function createPlan({ root, moduleApi }) {
   /* ── footer: what ProPresenter is doing ─────────────────────────── */
 
   function renderFoot() {
-    const live = state?.live;
-    const show = on('showLiveFooter') && live?.following && state?.plan;
+    const live = view.live ? state?.live : null;
+    const show = on('showLiveFooter') && live?.following && view.plan;
     footEl.hidden = !show;
     footEl.className = 'pp-foot';
     if (!show) return;
@@ -713,7 +725,10 @@ function createPlan({ root, moduleApi }) {
   /* ── render + ticking ───────────────────────────────────────────── */
 
   function render() {
+    view = viewOf(state);
+    switcher.sync();
     wrap.classList.toggle('is-offline', feedOffline);
+    wrap.classList.toggle('is-other-type', Boolean(state) && !view.live);
     wrap.classList.toggle('tint-types', Boolean(cfg().tintByType));
     wrap.classList.toggle('header-gradient', cfg().headerGradient !== false);
     const color = (value, fallback) => {
@@ -744,9 +759,9 @@ function createPlan({ root, moduleApi }) {
 
   function tick() {
     renderAbleSet();
-    if (!state?.plan) return;
+    if (!view.plan) return;
     renderClock();
-    if (state.live?.following && on('showItemRuntime')) renderLiveMarks();
+    if (view.live && state.live?.following && on('showItemRuntime')) renderLiveMarks();
   }
 
   /* ── live feed ──────────────────────────────────────────────────── */
@@ -805,11 +820,14 @@ function createPlan({ root, moduleApi }) {
         .then((body) => { if (body && !state) accept(body); })
         .catch(() => { /* the stream will cover it */ });
       connect();
+      offViewed = onViewedType(() => { lastListKey = ''; render(); });
       listEl.addEventListener('wheel', onUserScroll, { passive: true });
       listEl.addEventListener('touchmove', onUserScroll, { passive: true });
       ticker = setInterval(tick, 1000);
     },
     stop() {
+      offViewed?.();
+      offViewed = null;
       clearInterval(ticker);
       ticker = null;
       stream?.close();

modules/pco-plan/key-client.js

@@ -5,11 +5,14 @@
    which item is current comes from the ProPresenter module, as ever. */
 
 import { parseKey, prettyKey } from "./key-notation.js";
+import { viewOf, onViewedType, addServiceTypeSwitch } from "./viewed-type.js";
 
 export default function createKey({ root, moduleApi }) {
   let state = null;
   let stream = null;
   let feedOffline = false;
+  let view = viewOf(null);
+  let offViewed = null;
 
   root.innerHTML = `
     <div class="pk-wrap">
@@ -23,17 +26,21 @@ export default function createKey({ root, moduleApi }) {
   const nameEl = root.querySelector('.pk-name');
   const nextEl = root.querySelector('.pk-next');
 
+  const switcher = addServiceTypeSwitch({ moduleApi, getState: () => state });
+
   const cfg = () => moduleApi.instanceSettings || {};
   const on = (key) => cfg()[key] !== false; // unset = shown
 
   /* ── the item on screen, and the one after it ───────────────────── */
 
   function items() {
-    return Array.isArray(state?.items) ? state.items : [];
+    return Array.isArray(view.items) ? view.items : [];
   }
 
   function currentItem() {
-    const id = state?.live?.following ? state.live.currentItemId : '';
+    // Only the followed service type has a live item; on another one there
+    // is nothing current, so the tile says so rather than guessing.
+    const id = view.live && state?.live?.following ? state.live.currentItemId : '';
     return id ? items().find((it) => it.id === id) || null : null;
   }
 
@@ -63,6 +70,7 @@ export default function createKey({ root, moduleApi }) {
       return moduleApi.setStatus(state.lastFetched ? 'error' : 'connecting', state.lastError || 'Reading the plan…');
     }
     const item = currentItem();
+    if (!view.live) return moduleApi.setStatus('ok', `${view.name || 'Another service type'} — not the one live`);
     if (!state.live?.following) return moduleApi.setStatus('ok', 'Not following ProPresenter — no item is current');
     // The key on screen stays — the band still needs it — but a tile must
     // never look confidently live while the feed that chose it is gone.
@@ -101,7 +109,10 @@ export default function createKey({ root, moduleApi }) {
   }
 
   function render() {
+    view = viewOf(state);
+    switcher.sync();
     wrap.classList.toggle('is-offline', feedOffline);
+    wrap.classList.toggle('is-other-type', Boolean(state) && !view.live);
     const live = state?.live;
     wrap.classList.toggle('is-stale', Boolean(live?.following && (!live.available || !live.ppReachable)));
     const color = String(cfg().keyColor || '').trim();
@@ -120,7 +131,9 @@ export default function createKey({ root, moduleApi }) {
     }
     if (!item) {
       drawKey('—');
-      nameEl.textContent = state.live?.following ? 'Nothing live' : 'Not following ProPresenter';
+      nameEl.textContent = !view.live
+        ? (view.name || 'Another service type')
+        : (state.live?.following ? 'Nothing live' : 'Not following ProPresenter');
       nextEl.textContent = '';
       return;
     }
@@ -167,9 +180,12 @@ export default function createKey({ root, moduleApi }) {
         .then((body) => { if (body && !state) accept(body); })
         .catch(() => { /* the stream will cover it */ });
       connect();
+      offViewed = onViewedType(render);
       render();
     },
     stop() {
+      offViewed?.();
+      offViewed = null;
       stream?.close();
       stream = null;
       root.innerHTML = '';

modules/pco-plan/module.json

@@ -1,8 +1,8 @@
 {
   "id": "pco-plan",
   "name": "PCO Plan",
-  "version": "1.9.0",
-  "proddash": ">=1.4.0",
+  "version": "1.10.0",
+  "proddash": ">=1.12.0",
   "description": "Order of service, team assignments and the song key from Planning Center Services",
   "provides": [
     "timers"
@@ -46,11 +46,13 @@
       "default": "",
       "group": "Planning Center credentials"
     },
-    "serviceTypeId": {
-      "type": "select",
-      "label": "Service type",
-      "default": "",
-      "optionsRoute": "/service-types"
+    "serviceTypes": {
+      "type": "multiselect",
+      "label": "Service types",
+      "orderable": true,
+      "optionsRoute": "/service-types",
+      "help": "Add every service type whose plans this ProdDash should follow. Order is priority: when two of them have a plan at the same date and time, the one higher up wins.",
+      "addLabel": "Add a service type…"
     },
     "planId": {
       "type": "select",
@@ -63,7 +65,8 @@
         }
       ],
       "optionsRoute": "/plans",
-      "optionsDependsOn": "serviceTypeId"
+      "optionsDependsOn": "serviceTypes",
+      "help": "Leave on Automatic for services. Pin a specific plan for rehearsals or to review a past service."
     },
     "pollSeconds": {
       "type": "number",

modules/pco-plan/server.js

@@ -73,6 +73,7 @@ const path = require('path');
 const { placeDocument, messageItemOf, playlistMirrorsPlan, similarity, MATCH_THRESHOLD } = require('./matching');
 const {
   MINUTE,
+  DEFAULT_SERVICE_LENGTH_MS,
   serviceTimes,
   serviceWindows,
   selectService,
@@ -111,6 +112,12 @@ const SEEN_DOCUMENTS_MAX = 200;
  * plan changes, and otherwise no more often than this.
  */
 const TEAMS_MIN_MS = 60 * 1000;
+/**
+ * The selected service types nobody is following: their plans only matter to a
+ * dashboard that has switched to one, and they never move during a service, so
+ * they ride a lane slower than the plan itself.
+ */
+const OTHERS_MIN_MS = 45 * 1000;
 /** How long the service type's own team list is believed. */
 const SERVICE_TEAMS_TTL_MS = 10 * MINUTE;
 /** Avatars live on Planning Center's CDN; browsers only talk to ProdDash. */
@@ -147,6 +154,14 @@ function clearedState() {
     items: [],
     teams: [],             // who is scheduled, by team (the Teams tile)
     teamsError: '',        // why the last team read failed, if it did
+    serviceTypes: [],      // every selected service type id, highest priority first
+    /**
+     * The selected service types this ProdDash is NOT following right now,
+     * each with its own current plan. A dashboard can switch to one of these
+     * for itself; the live machinery (ProPresenter, the service clock, the
+     * timers) stays with the one above, which is the service actually running.
+     */
+    others: {},
     live: clearedLive(),
     service: clearedService(),
     timing: null,          // the admin's service-timing choices (no secrets)
@@ -610,7 +625,20 @@ module.exports = {
     const streams = new Set();       // /stream clients (tiles)
     const timerStreams = new Set();  // /timers/stream clients (the Timers module)
     const pco = createPcoClient(config);
-    const serviceTypeId = String(config.serviceTypeId || '').trim();
+    /**
+     * Every service type this ProdDash follows, highest priority first. A
+     * config written before 1.10.0 has the single `serviceTypeId` instead;
+     * it is read as a list of one so a booth keeps working untouched until
+     * somebody opens the admin page.
+     */
+    const serviceTypes = (Array.isArray(config.serviceTypes) ? config.serviceTypes : [])
+      .map((v) => String(v).trim())
+      .filter(Boolean);
+    if (!serviceTypes.length && String(config.serviceTypeId || '').trim()) {
+      serviceTypes.push(String(config.serviceTypeId).trim());
+    }
+    /** The one whose plan is on screen — everything plan-scoped hangs off this. */
+    let activeTypeId = serviceTypes[0] || '';
     const pinnedPlanId = String(config.planId || '').trim();
     const pollMs = Math.max(MIN_POLL_S, Number(config.pollSeconds) || 30) * 1000;
     const follow = config.followProPresenter !== false;
@@ -647,8 +675,9 @@ module.exports = {
 
     let state = clearedState();
     state.configured = pco.configured;
-    state.serviceTypeSet = Boolean(serviceTypeId);
-    state.serviceType = { id: serviceTypeId, name: '' };
+    state.serviceTypeSet = Boolean(serviceTypes.length);
+    state.serviceType = { id: activeTypeId, name: '' };
+    state.serviceTypes = serviceTypes.slice();
     state.live.following = follow;
     state.timing = { ...timing };
 
@@ -704,8 +733,37 @@ module.exports = {
 
     /* — plan reading — */
 
-    function planPath(planId) {
-      return `${SERVICES}/service_types/${encodeURIComponent(serviceTypeId)}/plans/${encodeURIComponent(planId)}`;
+    function planPath(planId, stId = activeTypeId) {
+      return `${SERVICES}/service_types/${encodeURIComponent(stId)}/plans/${encodeURIComponent(planId)}`;
+    }
+
+    /** id → name, asked once each. A service type that has gone is named, not fatal. */
+    const typeNames = new Map();
+    async function typeName(stId) {
+      if (typeNames.has(stId)) return typeNames.get(stId);
+      let name = `Service type ${stId}`;
+      try {
+        const st = await pco.get(`${SERVICES}/service_types/${encodeURIComponent(stId)}`);
+        name = String(st?.data?.attributes?.name || '').trim() || name;
+      } catch (err) {
+        if (err.status !== 404) throw err;
+        name = `Service type ${stId} (no longer in Planning Center)`;
+      }
+      typeNames.set(stId, name);
+      return name;
+    }
+
+    /**
+     * A pinned plan, as the admin's Plan select writes it: "<serviceType>/<plan>".
+     * A bare id is a pin saved before 1.10.0, when there was only one service
+     * type to belong to.
+     */
+    function parsePin(raw) {
+      const text = String(raw || '').trim();
+      if (!text) return null;
+      const slash = text.indexOf('/');
+      if (slash > 0) return { stId: text.slice(0, slash), planId: text.slice(slash + 1) };
+      return { stId: serviceTypes[0] || '', planId: text };
     }
 
     /** The plans around now for a service type: a few upcoming, a few recent, oldest first. */
@@ -740,8 +798,61 @@ module.exports = {
       return pickPlan(await listPlans(stId));
     }
 
-    async function readPlanTimes(planId) {
-      const body = await pco.getAll(`${planPath(planId)}/plan_times`);
+    /**
+     * The plan to follow, across every selected service type. Their plans are
+     * ranked together — one happening today beats one still to come, which
+     * beats one already past — and a dead heat on the date is settled by the
+     * order the service types are listed in, which is what that order is for.
+     *
+     * One service type failing (a deleted id, say) must not cost the booth the
+     * others, so it is logged and skipped; a credentials or network failure is
+     * not skippable and is thrown on.
+     */
+    async function choosePlanAcross() {
+      const now = Date.now();
+      const today = localYmd(new Date(now));
+      const candidates = [];
+      for (let priority = 0; priority < serviceTypes.length; priority += 1) {
+        const stId = serviceTypes[priority];
+        let plans;
+        try {
+          plans = await listPlans(stId);
+        } catch (err) {
+          if (err.status === 401 || err.status === 429 || err.network) throw err;
+          log(`service type ${stId} skipped: ${err?.message || err}`);
+          continue;
+        }
+        for (const plan of plans) {
+          const tier = localYmd(new Date(plan.sortDate)) === today ? 0 : (plan.sortDate > now ? 1 : 2);
+          candidates.push({ ...plan, stId, priority, tier });
+        }
+      }
+      if (!candidates.length) return null;
+      candidates.sort((a, b) => (
+        a.tier - b.tier
+        // today and upcoming: soonest first. Past: most recent first.
+        || (a.tier === 2 ? b.sortDate - a.sortDate : a.sortDate - b.sortDate)
+        || a.priority - b.priority
+      ));
+      return candidates[0];
+    }
+
+    /** Point everything plan-scoped at a service type, forgetting the last one's. */
+    async function useServiceType(stId) {
+      if (!stId || stId === activeTypeId) {
+        if (stId && !state.serviceType.name) state.serviceType = { id: stId, name: await typeName(stId) };
+        return;
+      }
+      activeTypeId = stId;
+      // Note categories belong to the service type; the team lists are already
+      // cached per type and look after themselves.
+      noteCategories = { at: 0, options: [] };
+      state.serviceType = { id: stId, name: await typeName(stId) };
+      if (serviceTypes.length > 1) log(`following service type "${state.serviceType.name}"`);
+    }
+
+    async function readPlanTimes(planId, stId = activeTypeId) {
+      const body = await pco.getAll(`${planPath(planId, stId)}/plan_times`);
       return (body.data || [])
         .map((t) => ({
           id: String(t.id),
@@ -754,8 +865,8 @@ module.exports = {
         .sort((x, y) => x.startsAt - y.startsAt);
     }
 
-    async function readItems(planId) {
-      const target = `${planPath(planId)}/items`;
+    async function readItems(planId, stId = activeTypeId) {
+      const target = `${planPath(planId, stId)}/items`;
       try {
         return shapeItems(await pco.getAll(target, { include: 'song,arrangement,item_notes' }));
       } catch (err) {
@@ -775,18 +886,21 @@ module.exports = {
      * service type, not during a service. A failed read is not fatal — the
      * plan's own teams still draw, just without the empty ones.
      */
-    let serviceTeams = { at: 0, list: [] };
+    const serviceTeamsByType = new Map(); // stId -> { at, list }
 
-    async function readServiceTeams() {
+    async function readServiceTeams(stId = activeTypeId) {
+      let serviceTeams = serviceTeamsByType.get(stId) || { at: 0, list: [] };
+      serviceTeamsByType.set(stId, serviceTeams);
       if (Date.now() - serviceTeams.at < SERVICE_TEAMS_TTL_MS) return serviceTeams.list;
       try {
-        const body = await pco.getAll(`${SERVICES}/service_types/${encodeURIComponent(serviceTypeId)}/teams`);
+        const body = await pco.getAll(`${SERVICES}/service_types/${encodeURIComponent(stId)}/teams`);
         const list = (body.data || []).map((t, i) => ({
           id: String(t.id),
           name: String(t.attributes?.name || '').trim() || `Team ${t.id}`,
           sequence: Number(t.attributes?.sequence) || i + 1,
         }));
         serviceTeams = { at: Date.now(), list };
+        serviceTeamsByType.set(stId, serviceTeams);
       } catch (err) {
         log(`service type team list read failed: ${err?.message || err}`);
         serviceTeams.at = Date.now(); // don't retry every poll
@@ -795,7 +909,7 @@ module.exports = {
     }
 
     /** planPersonId → photo URL, so a browser never learns the CDN address. */
-    let teamPhotos = new Map();
+    const teamPhotos = new Map();
     let teamsReadAt = 0;
 
     /**
@@ -804,8 +918,8 @@ module.exports = {
      * them, exactly as the items read does: a tile that can name people
      * without photos is far better than a tile that shows nothing.
      */
-    async function readTeams(planId) {
-      const target = `${planPath(planId)}/team_members`;
+    async function readTeams(planId, stId = activeTypeId) {
+      const target = `${planPath(planId, stId)}/team_members`;
       let body;
       try {
         body = await pco.getAll(target, { include: 'team,person' });
@@ -817,16 +931,16 @@ module.exports = {
           throw err;
         }
       }
-      const teams = shapeTeams(body, await readServiceTeams());
-      const photos = new Map();
+      const teams = shapeTeams(body, await readServiceTeams(stId));
       const included = new Map();
       for (const rec of body.included || []) included.set(`${rec.type}/${rec.id}`, rec);
       for (const pp of body.data || []) {
         const personRef = pp.relationships?.person?.data;
         const url = teamPhotoOf(pp.attributes, personRef ? included.get(`Person/${personRef.id}`) : null);
-        if (url) photos.set(String(pp.id), url);
+        // Photos accumulate: a dashboard looking at another service type still
+        // asks this module for its people's faces.
+        if (url) teamPhotos.set(String(pp.id), url);
       }
-      teamPhotos = photos;
       teamsReadAt = Date.now();
       return teams;
     }
@@ -854,6 +968,57 @@ module.exports = {
       }
     }
 
+    /**
+     * The other selected service types, each with its own current plan, for a
+     * dashboard that has switched to one. Read on the slow lane and wrapped
+     * individually: a service type that fails here is reported in its own
+     * entry and costs the booth nothing else.
+     */
+    let othersReadAt = 0;
+
+    async function readOtherTypes(force) {
+      if (!force && Date.now() - othersReadAt < OTHERS_MIN_MS) return;
+      othersReadAt = Date.now();
+      const others = {};
+      for (const stId of serviceTypes) {
+        if (stId === activeTypeId) continue;
+        const entry = { id: stId, name: '', plan: null, items: [], teams: [], teamsError: '', lastError: '' };
+        others[stId] = entry;
+        try {
+          entry.name = await typeName(stId);
+          const chosen = await choosePlanId(stId);
+          if (!chosen) continue;
+          const [planTimes, items] = await Promise.all([
+            readPlanTimes(chosen.id, stId),
+            readItems(chosen.id, stId),
+          ]);
+          const plan = shapePlan(chosen, stId, planTimes);
+          // No service clock runs for a type nobody is following, so take the
+          // service that is current or next purely to lay the items out.
+          const times = serviceTimes(planTimes);
+          const now = Date.now();
+          const service = times.find((t) => (t.endsAt || t.startsAt + DEFAULT_SERVICE_LENGTH_MS) > now) || times[times.length - 1];
+          if (service) {
+            plan.serviceStartsAt = service.startsAt;
+            plan.serviceEndsAt = service.endsAt || 0;
+            plan.serviceName = service.name || '';
+          }
+          scheduleItems(items, plan.serviceStartsAt || plan.sortDate);
+          entry.plan = plan;
+          entry.items = items;
+          try {
+            entry.teams = await readTeams(chosen.id, stId);
+          } catch (err) {
+            entry.teamsError = err?.message || String(err);
+          }
+        } catch (err) {
+          entry.lastError = err?.message || String(err);
+          log(`service type ${stId}: ${entry.lastError}`);
+        }
+      }
+      state.others = others;
+    }
+
     /** Options for a Teams tile's "Teams" switches — the plan's own teams, in its order. */
     function teamOptions() {
       return { options: state.teams.map((t) => ({ value: t.id, label: t.name })) };
@@ -861,23 +1026,22 @@ module.exports = {
 
 
     async function readPlan() {
-      if (!pco.configured || !serviceTypeId) return;
+      if (!pco.configured || !serviceTypes.length) return;
       let planRec = null;
-      if (pinnedPlanId) {
-        planRec = (await pco.get(planPath(pinnedPlanId)))?.data || null;
+      const pin = parsePin(pinnedPlanId);
+      if (pin && pin.planId && pin.stId) {
+        await useServiceType(pin.stId);
+        planRec = (await pco.get(planPath(pin.planId, pin.stId)))?.data || null;
       } else {
-        const chosen = await choosePlanId(serviceTypeId);
-        // Re-read the chosen plan by id: the list endpoint's attributes are the
-        // same, but this keeps one code path and picks up edits immediately.
-        planRec = chosen ? (await pco.get(planPath(chosen.id)))?.data || chosen : null;
-      }
-      if (!state.serviceType.name) {
-        try {
-          const st = await pco.get(`${SERVICES}/service_types/${encodeURIComponent(serviceTypeId)}`);
-          state.serviceType = { id: serviceTypeId, name: String(st?.data?.attributes?.name || '') };
-        } catch (err) {
-          if (err.status === 404) throw new Error(`Service type ${serviceTypeId} does not exist — pick another in the setup page`);
-          throw err;
+        const chosen = await choosePlanAcross();
+        if (chosen) {
+          await useServiceType(chosen.stId);
+          // Re-read the chosen plan by id: the list endpoint's attributes are
+          // the same, but this keeps one code path and picks up edits at once.
+          planRec = (await pco.get(planPath(chosen.rec.id, chosen.stId)))?.data || chosen.rec;
+        } else {
+          // Nothing anywhere: still name a service type so the tile can say whose.
+          await useServiceType(serviceTypes[0]);
         }
       }
       if (!planRec) {
@@ -890,10 +1054,11 @@ module.exports = {
         state.lastError = '';
         state.lastFetched = Date.now();
         syncServiceSafe(Date.now(), null);
+        await readOtherTypes(true);
         return;
       }
       const [planTimes, items] = await Promise.all([readPlanTimes(planRec.id), readItems(planRec.id)]);
-      const plan = shapePlan(planRec, serviceTypeId, planTimes);
+      const plan = shapePlan(planRec, activeTypeId, planTimes);
       const planChanged = state.plan?.id !== plan.id;
       if (planChanged) {
         if (state.plan) log(`plan changed: ${state.plan.id} → ${plan.id} (${plan.dates} ${plan.title}) — service timing reset`);
@@ -916,6 +1081,8 @@ module.exports = {
       // Service selection, item schedule and the running clock all follow
       // from the plan's service times — decided in one place.
       syncServiceSafe(Date.now(), null);
+      // Whatever else is selected, for a dashboard that has switched to it.
+      await readOtherTypes(planChanged);
     }
 
     /** Say, once per plan, which item a document named like the plan will land on. */
@@ -943,11 +1110,11 @@ module.exports = {
      * list — the gear window then says there is nothing to choose from yet.
      */
     async function noteCategoryOptions() {
-      if (!pco.configured || !serviceTypeId) return [];
+      if (!pco.configured || !activeTypeId) return [];
       if (Date.now() - noteCategories.at < NOTE_CATEGORIES_TTL_MS) return noteCategories.options;
       if (!noteCategoriesInFlight) {
         noteCategoriesInFlight = (async () => {
-          const body = await pco.getAll(`${SERVICES}/service_types/${encodeURIComponent(serviceTypeId)}/item_note_categories`);
+          const body = await pco.getAll(`${SERVICES}/service_types/${encodeURIComponent(activeTypeId)}/item_note_categories`);
           const seen = new Set();
           const options = (body.data || [])
             .filter((c) => !c?.attributes?.deleted_at)
@@ -1713,11 +1880,11 @@ module.exports = {
     if (!pco.configured) {
       state.lastError = 'No Planning Center credentials — add a Client ID + Secret (or OAuth token) in /admin';
       log(state.lastError);
-    } else if (!serviceTypeId) {
+    } else if (!serviceTypes.length) {
       state.lastError = 'No service type selected — choose one under PCO Plan in /admin';
       log(state.lastError);
     } else {
-      log(`reading service type ${serviceTypeId} from ${API_BASE} (${pco.method})${pinnedPlanId ? `, plan ${pinnedPlanId} pinned` : ''}`);
+      log(`reading ${serviceTypes.length} service type${serviceTypes.length === 1 ? '' : 's'} (${serviceTypes.join(', ')}) from ${API_BASE} (${pco.method})${pinnedPlanId ? `, plan ${pinnedPlanId} pinned` : ''}`);
       schedulePoll(0);
     }
     log(
@@ -1777,6 +1944,7 @@ module.exports = {
       },
       listPlans,
       pickPlan,
+      typeName,
       timersSnapshot,
       documentOptions,
       noteCategoryOptions,
@@ -1805,11 +1973,11 @@ module.exports = {
       },
       health() {
         if (!pco.configured) return { status: 'error', message: 'No Planning Center credentials configured' };
-        if (!serviceTypeId) return { status: 'error', message: 'No service type selected — pick one in the Service type list below' };
+        if (!serviceTypes.length) return { status: 'error', message: 'No service type selected — tick one in the Service types list below' };
         if (!state.reachable) {
           return { status: state.lastFetched ? 'error' : 'connecting', message: state.lastError || 'Reading the plan…' };
         }
-        const name = state.serviceType.name || serviceTypeId;
+        const name = state.serviceType.name || activeTypeId;
         const plan = state.plan ? ` · ${state.plan.dates}${state.plan.title ? ` — ${state.plan.title}` : ''}` : ' · no plan found';
         const service = win ? ` · ${serviceLabel(win)} ${svc.phase}` : '';
         const live = wantFeed ? (state.live.available ? '' : ' · ProPresenter feed unavailable') : '';
@@ -1986,8 +2154,15 @@ module.exports = {
             }
             return names.join(' › ');
           };
+          const live = current.getState().serviceType?.id || '';
           const options = serviceTypes
-            .map((st) => ({ value: st.id, label: st.name, group: pathOf(st.parentId) }))
+            .map((st) => ({
+              value: st.id,
+              // Which one's plan is actually on screen, so the list says so
+              // rather than leaving it to be worked out.
+              label: st.id === live ? `${st.name} — following now` : st.name,
+              group: pathOf(st.parentId),
+            }))
             .sort((a, b) => a.group.localeCompare(b.group) || a.label.localeCompare(b.label));
           json(res, 200, { options });
         } catch (err) {
@@ -1997,40 +2172,46 @@ module.exports = {
       },
 
       /**
-       * Options for the admin page's "Plan" select, for the service type the
-       * admin currently has picked (?serviceTypeId=…): the upcoming and recent
-       * plans, with the one Automatic would choose marked.
+       * Options for the admin page's "Plan" select, across every service type
+       * ticked above (?serviceTypes=a,b,c), grouped by which one each belongs
+       * to. A value is "<serviceType>/<plan>", because a plan id alone does
+       * not say whose it is once there is more than one list.
        */
       'GET /plans': async (req, res) => {
         if (!current) return json(res, 503, { error: 'Module not running.' });
         const { pco } = current;
         const params = new URLSearchParams(req.search || '');
-        const stId = String(params.get('serviceTypeId') || '').trim();
+        const asked = String(params.get('serviceTypes') || '').split(',').map((v) => v.trim()).filter(Boolean);
         const auto = { value: '', label: 'Automatic — today\'s plan, else the next upcoming' };
-        if (!pco.configured || !stId) return json(res, 200, { options: [auto] });
-        try {
-          const plans = await current.listPlans(stId, { future: 8, past: 6 });
-          const picked = current.pickPlan(plans);
-          const now = Date.now();
-          const options = [auto];
-          // Upcoming first (soonest at the top), then the recent ones.
-          const ordered = [
-            ...plans.filter((p) => p.sortDate >= now - 12 * 3600000),
-            ...plans.filter((p) => p.sortDate < now - 12 * 3600000).reverse(),
-          ];
-          for (const { rec, sortDate } of ordered) {
-            const a = rec.attributes || {};
-            const bits = [String(a.dates || a.short_dates || new Date(sortDate).toLocaleDateString())];
-            if (a.series_title) bits.push(String(a.series_title));
-            if (a.title) bits.push(String(a.title));
-            let label = bits.join(' — ');
-            if (picked && rec.id === picked.id) label += '  (Automatic picks this)';
-            options.push({ value: String(rec.id), label, group: sortDate >= now - 12 * 3600000 ? 'Upcoming' : 'Recent' });
+        if (!pco.configured || !asked.length) return json(res, 200, { options: [auto] });
+        const options = [auto];
+        let failure = '';
+        for (const stId of asked) {
+          try {
+            const [name, plans] = await Promise.all([
+              current.typeName(stId),
+              current.listPlans(stId, { future: 8, past: 6 }),
+            ]);
+            const picked = current.pickPlan(plans);
+            const now = Date.now();
+            const ordered = [
+              ...plans.filter((p) => p.sortDate >= now - 12 * 3600000),
+              ...plans.filter((p) => p.sortDate < now - 12 * 3600000).reverse(),
+            ];
+            for (const { rec, sortDate } of ordered) {
+              const a = rec.attributes || {};
+              const bits = [String(a.dates || a.short_dates || new Date(sortDate).toLocaleDateString())];
+              if (a.series_title) bits.push(String(a.series_title));
+              if (a.title) bits.push(String(a.title));
+              let label = bits.join(' — ');
+              if (picked && rec.id === picked.id) label += '  (this one, on Automatic)';
+              options.push({ value: `${stId}/${rec.id}`, label, group: name });
+            }
+          } catch (err) {
+            failure = err?.message || String(err);
           }
-          json(res, 200, { options });
-        } catch (err) {
-          json(res, err?.status === 401 ? 401 : 502, { options: [auto], error: err?.message || String(err) });
         }
+        json(res, 200, failure && options.length === 1 ? { options, error: failure } : { options });
       },
     };
   },

modules/pco-plan/style.css

@@ -744,3 +744,51 @@
 [data-module="pco-plan"] .pk-wrap.is-stale .pk-key { opacity: 0.55; }
 [data-module="pco-plan"] .pk-wrap.is-stale .pk-name,
 [data-module="pco-plan"] .pk-wrap.is-stale .pk-next { opacity: 0.6; }
+
+/* ── the service-type menu, and a tile looking at another one ────────── */
+
+[data-module="pco-plan"] .pp-menu-item {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  width: 100%;
+  padding: 6px 9px;
+  background: none;
+  border: none;
+  border-radius: 6px;
+  color: var(--text);
+  font-size: 12px;
+  font-family: inherit;
+  text-align: left;
+  cursor: pointer;
+  white-space: nowrap;
+}
+[data-module="pco-plan"] .pp-menu-item:hover { background: var(--border); }
+[data-module="pco-plan"] .pp-menu-tick {
+  width: 12px;
+  flex: none;
+  color: var(--accent);
+  font-weight: 700;
+  visibility: hidden;
+}
+[data-module="pco-plan"] .pp-menu-item.is-on .pp-menu-tick { visibility: visible; }
+[data-module="pco-plan"] .pp-menu-name { flex: 1; min-width: 0; font-weight: 600; }
+[data-module="pco-plan"] .pp-menu-note {
+  flex: none;
+  font-size: 0.8em;
+  font-weight: 700;
+  letter-spacing: 0.06em;
+  text-transform: uppercase;
+  color: var(--accent);
+}
+
+/* Looking at a service type other than the one running: the top bar carries
+   a quiet stripe so nobody reads this as the live plan. */
+[data-module="pco-plan"] .pp-wrap.is-other-type .pp-head,
+[data-module="pco-plan"] .tm-wrap.is-other-type .tm-head {
+  background: color-mix(in srgb, var(--warn) 9%, transparent);
+  border-bottom-color: color-mix(in srgb, var(--warn) 45%, transparent);
+}
+[data-module="pco-plan"] .pk-wrap.is-other-type {
+  box-shadow: inset 0 2px 0 color-mix(in srgb, var(--warn) 45%, transparent);
+}

modules/pco-plan/teams-client.js

@@ -13,11 +13,15 @@ const DEFAULT_TEMPLATE = '{serviceType} • {date} | {people} on {teams}';
 /** Colours for "Tint teams", walked in order so neighbouring teams differ. */
 const TEAM_HUES = [152, 205, 32, 275, 12, 180, 320, 95, 240, 50];
 
+import { viewOf, onViewedType, addServiceTypeSwitch } from "./viewed-type.js";
+
 export default function createTeams({ root, moduleApi }) {
   let state = null;
   let feedOffline = false;
   let stream = null;
   let lastKey = '';
+  let view = viewOf(null);
+  let offViewed = null;
 
   root.innerHTML = `
     <div class="tm-wrap">
@@ -39,6 +43,8 @@ export default function createTeams({ root, moduleApi }) {
 
   /* ── title-bar controls ─────────────────────────────────────────── */
 
+  const switcher = addServiceTypeSwitch({ moduleApi, getState: () => state });
+
   const refreshBtn = moduleApi.header.addButton({
     icon: REFRESH_SVG,
     title: 'Re-read from Planning Center',
@@ -92,7 +98,7 @@ export default function createTeams({ root, moduleApi }) {
   /* ── which teams and people to show ─────────────────────────────── */
 
   function visibleTeams() {
-    const teams = Array.isArray(state?.teams) ? state.teams : [];
+    const teams = Array.isArray(view.teams) ? view.teams : [];
     const wantTeams = chosen('teams');
     const out = [];
     for (const team of teams) {
@@ -118,8 +124,8 @@ export default function createTeams({ root, moduleApi }) {
     if (!state.reachable) {
       return moduleApi.setStatus(state.lastFetched ? 'error' : 'connecting', state.lastError || 'Reading the plan…');
     }
-    if (state.teamsError) return moduleApi.setStatus('error', `Team list: ${state.teamsError}`);
-    const people = (state.teams || []).reduce((n, t) => n + t.members.length, 0);
+    if (view.teamsError) return moduleApi.setStatus('error', `Team list: ${view.teamsError}`);
+    const people = (view.teams || []).reduce((n, t) => n + t.members.length, 0);
     moduleApi.setStatus('ok', `${people} scheduled · read ${new Date(state.lastFetched).toLocaleTimeString()}`);
   }
 
@@ -127,14 +133,14 @@ export default function createTeams({ root, moduleApi }) {
 
   /** The counts describe what this tile shows, not what the plan holds. */
   function templateValues() {
-    const plan = state?.plan || {};
+    const plan = view.plan || {};
     const teams = visibleTeams();
     const people = teams.reduce((n, t) => n + t.members.length, 0);
     const confirmed = teams.reduce((n, t) => n + t.counts.confirmed, 0);
     return {
       series: plan.seriesTitle || '',
       part: plan.title || '',
-      servicetype: state?.serviceType?.name || '',
+      servicetype: view.name || '',
       date: plan.dates || '',
       shortdate: plan.shortDates || plan.dates || '',
       time: plan.serviceStartsAt
@@ -171,11 +177,11 @@ export default function createTeams({ root, moduleApi }) {
   }
 
   function renderHead() {
-    const show = on('showTopBar') && state?.plan;
+    const show = on('showTopBar') && view.plan;
     headEl.hidden = !show;
     if (!show) return;
     const [line1, line2] = renderTemplate(cfg().headerTemplate, templateValues());
-    titleEl.textContent = line1 || line2 || state.serviceType?.name || 'Teams';
+    titleEl.textContent = line1 || line2 || view.name || 'Teams';
     subEl.textContent = line1 ? line2 || '' : '';
     subEl.hidden = !subEl.textContent;
   }
@@ -199,19 +205,19 @@ export default function createTeams({ root, moduleApi }) {
         link: { href: '/admin', text: 'Open Admin' },
       };
     }
-    if (!state.reachable && !state.plan) {
+    if (!state.reachable && !view.plan) {
       return { title: state.lastFetched ? 'Planning Center unavailable' : 'Reading the plan…', hint: state.lastError || '' };
     }
-    if (!state.plan) {
+    if (!view.plan) {
       return {
         title: 'No plan found',
-        hint: `${state.serviceType?.name || 'This service type'} has no upcoming or recent plans.`,
+        hint: `${view.name || 'This service type'} has no upcoming or recent plans.`,
       };
     }
-    if (!(state.teams || []).length) {
+    if (!(view.teams || []).length) {
       return {
         title: 'Nobody scheduled yet',
-        hint: state.teamsError || 'This plan has no team members in Planning Center.',
+        hint: view.teamsError || 'This plan has no team members in Planning Center.',
       };
     }
     if (!visibleTeams().length) {
@@ -372,7 +378,7 @@ export default function createTeams({ root, moduleApi }) {
     // Rebuild only when the roster or the settings actually changed: the
     // avatars are <img>s and a needless rebuild makes them flicker.
     const teams = visibleTeams();
-    const key = JSON.stringify([teams, cfg()]);
+    const key = JSON.stringify([view.id, teams, cfg()]);
     if (key === lastKey) return;
     lastKey = key;
     bodyEl.innerHTML = '';
@@ -380,7 +386,10 @@ export default function createTeams({ root, moduleApi }) {
   }
 
   function render() {
+    view = viewOf(state);
+    switcher.sync();
     wrap.classList.toggle('is-offline', feedOffline);
+    wrap.classList.toggle('is-other-type', Boolean(state) && !view.live);
     wrap.classList.toggle('tint-rows', Boolean(cfg().tintTeams && cfg().tintRows));
     wrap.classList.toggle('header-gradient', on('headerGradient'));
     renderStatus();
@@ -421,9 +430,12 @@ export default function createTeams({ root, moduleApi }) {
         .then((body) => { if (body && !state) accept(body); })
         .catch(() => { /* the stream will cover it */ });
       connect();
+      offViewed = onViewedType(() => { lastKey = ''; render(); });
       render();
     },
     stop() {
+      offViewed?.();
+      offViewed = null;
       stream?.close();
       stream = null;
       root.innerHTML = '';

modules/pco-plan/viewed-type.js

@@ -0,0 +1,171 @@
+/* PCO Plan — which service type THIS dashboard is looking at.
+
+   The module's server follows one service type at a time: whichever the
+   admin's priority order lands on. A dashboard may want a different one on
+   screen — the other campus, the youth plan — without changing what the
+   server follows or what any other screen sees.
+
+   That choice belongs to the browser, so it lives here: one value for the
+   whole page, kept in localStorage and shared between every PCO Plan tile on
+   it, so switching from one tile moves them all together. */
+
+const KEY = 'pco-plan:viewed-service-type';
+
+/** One bus per page, however many tiles import this. */
+function bus() {
+  if (!window.__pcoPlanViewed) {
+    let value = '';
+    try {
+      value = String(localStorage.getItem(KEY) || '');
+    } catch {
+      value = ''; // private window, storage off: the choice just won't persist
+    }
+    window.__pcoPlanViewed = { value, listeners: new Set() };
+  }
+  return window.__pcoPlanViewed;
+}
+
+/** '' means "whatever the server is following" — the normal case. */
+export function viewedType() {
+  return bus().value;
+}
+
+export function setViewedType(id) {
+  const b = bus();
+  const next = String(id || '');
+  if (next === b.value) return;
+  b.value = next;
+  try {
+    if (next) localStorage.setItem(KEY, next);
+    else localStorage.removeItem(KEY);
+  } catch { /* not persisted, still shared for this page */ }
+  for (const fn of [...b.listeners]) {
+    try {
+      fn(next);
+    } catch (err) {
+      console.error('[pco-plan] viewed-type listener failed:', err);
+    }
+  }
+}
+
+/** Returns an unsubscribe — call it from the tile's stop(). */
+export function onViewedType(fn) {
+  const b = bus();
+  b.listeners.add(fn);
+  return () => b.listeners.delete(fn);
+}
+
+/**
+ * The plan a tile should draw, given the whole state and this page's choice:
+ * the one the server follows, or one of the others it also reads.
+ *
+ * `live` is false for anything but the followed one — the ProPresenter match,
+ * the service clock and the timers belong to the service actually running, so
+ * a tile looking elsewhere must not pretend to have them.
+ */
+export function viewOf(state) {
+  const empty = { id: '', name: '', plan: null, items: [], teams: [], teamsError: '', live: true, lastError: '' };
+  if (!state) return empty;
+  const wanted = viewedType();
+  const activeId = state.serviceType?.id || '';
+  if (!wanted || wanted === activeId) {
+    return {
+      id: activeId,
+      name: state.serviceType?.name || '',
+      plan: state.plan,
+      items: state.items || [],
+      teams: state.teams || [],
+      teamsError: state.teamsError || '',
+      live: true,
+      lastError: '',
+    };
+  }
+  const other = (state.others || {})[wanted];
+  if (!other) {
+    // Ticked off in admin since this dashboard chose it, or not read yet.
+    return { ...empty, id: wanted, live: false, lastError: 'That service type is no longer selected' };
+  }
+  return {
+    id: other.id,
+    name: other.name,
+    plan: other.plan,
+    items: other.items || [],
+    teams: other.teams || [],
+    teamsError: other.teamsError || '',
+    live: false,
+    lastError: other.lastError || '',
+  };
+}
+
+/** Every service type a dashboard may switch to, in the admin's priority order. */
+export function choices(state) {
+  const out = [];
+  const activeId = state?.serviceType?.id || '';
+  for (const id of state?.serviceTypes || []) {
+    if (id === activeId) out.push({ id, name: state.serviceType?.name || id, following: true });
+    else out.push({ id, name: (state.others || {})[id]?.name || id, following: false });
+  }
+  return out;
+}
+
+const SWITCH_SVG = '<svg viewBox="0 0 24 24" width="14" height="14" fill="none" stroke="currentColor" stroke-width="2.1" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M4 8h13l-3-3"/><path d="M20 16H7l3 3"/></svg>';
+
+/**
+ * The title-bar control that switches this dashboard between the selected
+ * service types. Added by every PCO Plan tile, because switching from any of
+ * them moves all of them; it hides itself whenever there is only one service
+ * type to choose from, which is the usual case.
+ *
+ * Returns { sync } — call it when the state arrives so the control appears,
+ * disappears or re-labels itself.
+ */
+export function addServiceTypeSwitch({ moduleApi, getState }) {
+  const menu = moduleApi.header.addMenu({
+    icon: SWITCH_SVG,
+    title: 'Service type shown on this dashboard',
+    build(el) {
+      el.classList.add('pp-menu');
+      const state = getState();
+      const wanted = viewedType();
+      const rows = [
+        { id: '', name: 'Whatever is live', following: false, auto: true },
+        ...choices(state),
+      ];
+      for (const row of rows) {
+        const item = document.createElement('button');
+        item.type = 'button';
+        item.className = 'pp-menu-item' + (row.id === wanted ? ' is-on' : '');
+        const tick = document.createElement('span');
+        tick.className = 'pp-menu-tick';
+        tick.textContent = '✓';
+        const name = document.createElement('span');
+        name.className = 'pp-menu-name';
+        name.textContent = row.name;
+        item.append(tick, name);
+        if (row.following) {
+          const note = document.createElement('span');
+          note.className = 'pp-menu-note';
+          note.textContent = 'live';
+          item.appendChild(note);
+        }
+        item.addEventListener('click', () => {
+          setViewedType(row.id);
+          menu.close();
+        });
+        el.appendChild(item);
+      }
+    },
+  });
+
+  return {
+    sync() {
+      const state = getState();
+      // One service type is no choice at all — rule 11, nothing in the bar
+      // that has nothing to do.
+      const many = (state?.serviceTypes || []).length > 1;
+      menu.button.hidden = !many;
+      const wanted = viewedType();
+      menu.button.classList.toggle('active', Boolean(wanted) && wanted !== (state?.serviceType?.id || ''));
+    },
+  };
+}

modules/prodcom-transcript/module.json

@@ -1,7 +1,7 @@
 {
   "id": "prodcom-transcript",
   "name": "ProdCom",
-  "version": "1.4.0",
+  "version": "1.5.0",
   "proddash": ">=1.4.0",
   "description": "Live ProdCom transcript; typed text to a ProdCom channel through the Send Message module",
   "permissions": [
@@ -38,6 +38,19 @@
       "type": "password",
       "label": "API key (only if PSK auth is enabled in ProdCom)",
       "default": ""
+    },
+    "autoStart": {
+      "type": "switch",
+      "label": "Start ProdCom when it is offline",
+      "default": true,
+      "help": "Only when ProdCom runs on this machine (the server above is 127.0.0.1 or this Mac’s own address). If ProdCom is not running, ProdDash opens it — up to three tries, five seconds apart. macOS only."
+    },
+    "apiRestart": {
+      "type": "switch",
+      "label": "Restart ProdCom to turn its API on",
+      "default": true,
+      "showWhen": "autoStart",
+      "help": "When ProdCom is running but its Application API is switched off, ProdDash turns the API on and restarts ProdCom to apply it (about ten seconds without intercom). Off: the API is turned on for ProdCom’s next start and the tile says to restart it."
     }
   },
   "instanceSchema": {

modules/prodcom-transcript/server.js

@@ -32,9 +32,15 @@
  *   extractEntries). POST /api/v1/channels/{id}/send with { text } puts typed
  *   text on a channel (it comes back on the stream with source "typed"). A
  *   bearer API key is sent when one is configured.
+ *
+ * When ProdCom runs on this very Mac and stops answering, supervisor.js opens
+ * it again — or turns its Application API on and restarts it, the API being
+ * read only at launch. Every failed connection is reported to it (fail()) and
+ * every good one (connect()); it does nothing for a ProdCom on another machine.
  */
 
 const http = require('http');
+const { createSupervisor } = require('./supervisor');
 
 /** The module that owns the PIN and the unlock tokens — see verifyUnlock(). */
 const SENDER_ID = 'send-message';
@@ -60,6 +66,19 @@ function resolveTarget(config) {
   return null;
 }
 
+/** Codes that mean ProdCom could not be reached at all — not that it answered badly. */
+const CONNECTION_CODES = new Set(['ECONNREFUSED', 'ECONNRESET', 'ETIMEDOUT', 'EHOSTUNREACH', 'ENOTFOUND']);
+
+/** The code of an error that is a failed (or timed-out) connection to ProdCom, else ''.
+    An HTTP status from ProdCom is not one: its API is up, so there is nothing to start. */
+function connectionCode(err) {
+  const code = err && (err.cause?.code || err.code);
+  if (CONNECTION_CODES.has(code)) return code;
+  if (code === 'UND_ERR_SOCKET') return 'ECONNRESET'; // fetch's spelling of a connection dropped under it
+  if (err && (err.name === 'TimeoutError' || err.name === 'AbortError')) return 'ETIMEDOUT';
+  return '';
+}
+
 /** Entries inside whatever ProdCom sent: a bare entry, or one wrapped in data / payload / entry / entries / transcript. */
 function extractEntries(obj) {
   if (!obj || typeof obj !== 'object') return [];
@@ -181,6 +200,7 @@ module.exports = {
     let upstream = null;
     let generation = 0;        // callbacks from a superseded connection are ignored
     let retryTimer = null;
+    let retryPending = false;  // waiting out the backoff, with no connect() under way
     let retryMs = RETRY_MIN_MS;
 
     const authHeaders = () => (apiKey ? { authorization: `Bearer ${apiKey}` } : {});
@@ -190,7 +210,11 @@ module.exports = {
         headers: { accept: 'application/json', ...authHeaders() },
         signal: AbortSignal.timeout(REQUEST_TIMEOUT_MS),
       });
-      if (!res.ok) throw new Error(`HTTP ${res.status} for ${pathname}`);
+      if (!res.ok) {
+        const err = new Error(`HTTP ${res.status} for ${pathname}`);
+        err.httpStatus = res.status; // ProdCom answered, so it is up
+        throw err;
+      }
       return res.json();
     }
 
@@ -220,6 +244,22 @@ module.exports = {
       broadcast('status', status);
     }
 
+    // Keeps ProdCom itself up when it is on this machine (supervisor.js); a
+    // no-op everywhere else. Its words reach the tile through setStatus. This
+    // module is re-init'ed whenever its config is saved, so `config` is current.
+    const supervisor = createSupervisor({
+      settings: () => ({ autoStart: config.autoStart !== false, apiRestart: config.apiRestart !== false }),
+      target: () => ({ host: target ? target.hostname : '', port: target ? Number(target.port) || 80 : 0 }),
+      log,
+      status: setStatus,
+      // ProdCom answers again: connect now rather than when the backoff runs out — unless a connect is already under way.
+      onUp: () => {
+        if (stopped || !retryPending) return;
+        clearTimeout(retryTimer);
+        connect();
+      },
+    });
+
     function trim() {
       while (entries.size > ENTRIES_MAX) entries.delete(entries.keys().next().value);
     }
@@ -281,22 +321,29 @@ module.exports = {
     function scheduleRetry() {
       if (stopped) return;
       clearTimeout(retryTimer);
+      retryPending = true;
       retryTimer = setTimeout(connect, retryMs);
       retryMs = Math.min(RETRY_MAX_MS, retryMs * 2);
     }
 
-    function fail(gen, why) {
+    /** `code` is set when the connection itself failed (see connectionCode), not when ProdCom answered badly. */
+    function fail(gen, why, code = '') {
       if (stopped || gen !== generation) return;
       generation += 1; // whatever else this connection reports is stale now
       try { upstream?.destroy(); } catch { /* already gone */ }
       upstream = null;
-      setStatus('error', `ProdCom unreachable (${why}) — retrying`);
-      log(`ProdCom ${target.origin}: ${why} — retrying in ${retryMs / 1000} s`);
+      if (code) supervisor.kick(code);
+      // While the supervisor is starting ProdCom — or has given up and says why —
+      // its words are the ones worth reading, not "unreachable" on every retry.
+      const shown = code || why; // the normalised code where there is one (a timeout reads ETIMEDOUT, not 23)
+      if (!(code && supervisor.message())) setStatus('error', `ProdCom unreachable (${shown}) — retrying`);
+      log(`ProdCom ${target.origin}: ${shown} — retrying in ${retryMs / 1000} s`);
       scheduleRetry();
     }
 
     /** Lists and history first (a fresh snapshot for the tiles), then the live stream. */
     async function connect() {
+      retryPending = false;
       if (stopped || !target) return;
       const gen = ++generation;
       try {
@@ -304,7 +351,8 @@ module.exports = {
         await loadHistory();
       } catch (err) {
         if (gen !== generation || stopped) return;
-        return fail(gen, err.cause?.code || err.code || err.message);
+        if (err.httpStatus) supervisor.noteReachable(); // 401, 5xx…: ProdCom is up, whatever it said
+        return fail(gen, err.cause?.code || err.code || err.message, connectionCode(err));
       }
       if (gen !== generation || stopped) return;
       broadcast('state', snapshot());
@@ -319,9 +367,11 @@ module.exports = {
         if (gen !== generation) return void res.destroy();
         if (res.statusCode !== 200) {
           res.resume();
+          supervisor.noteReachable(); // ProdCom answered
           return fail(gen, `HTTP ${res.statusCode} from the transcript stream`);
         }
         retryMs = RETRY_MIN_MS;
+        supervisor.noteReachable();
         setStatus('ok', 'Live');
         log(`following ${target.origin} — ${channels.length} channels, ${entries.size} entries`);
         let buf = '';
@@ -337,9 +387,9 @@ module.exports = {
           if (buf.length > 1e6) buf = ''; // a frame that never ends is dropped
         });
         res.on('end', () => fail(gen, 'stream ended'));
-        res.on('error', (err) => fail(gen, err.code || err.message));
+        res.on('error', (err) => fail(gen, err.code || err.message, connectionCode(err)));
       });
-      req.on('error', (err) => fail(gen, err.code || err.message));
+      req.on('error', (err) => fail(gen, err.code || err.message, connectionCode(err)));
       req.end();
       upstream = req;
     }
@@ -449,6 +499,7 @@ module.exports = {
       stop() {
         stopped = true;
         generation += 1;
+        supervisor.stop();
         clearTimeout(retryTimer);
         clearInterval(listsTimer);
         clearInterval(heartbeat);

modules/prodcom-transcript/supervisor.js

@@ -0,0 +1,437 @@
+'use strict';
+
+/**
+ * ProdCom Transcript — keeping ProdCom itself running.
+ *
+ * When ProdCom runs on the same Mac as ProdDash (the booth Mac) and its API
+ * stops answering, the usual reason is that nobody has opened ProdCom, or that
+ * its Application API is switched off — ProdCom reads that switch only at
+ * launch. This watches for that and puts it right: open ProdCom if it is not
+ * running; if it is running with the API off, turn the API on and restart it.
+ * Nothing here does anything on another OS, or when ProdCom is on another
+ * machine — a remote ProdCom is somebody else's to look after.
+ *
+ * The module calls kick(code) every time a connection to ProdCom fails and
+ * noteReachable() when one succeeds; the rest is decided here. A "run" is up to
+ * three attempts, each: act, wait five seconds, ask the API whether it is up.
+ * When a run cannot fix it, the supervisor gives up for that outage — kick()
+ * then returns at once, so the module's reconnect loop can call it every few
+ * seconds without anything happening — until a connection succeeds again.
+ *
+ * Every touch of the machine (is ProdCom running, open it, read/write its
+ * preference, quit it) and of the network (the ping) is injected, so
+ * supervisor.test.js drives the decisions with fakes; the real ones are
+ * defaultOs() and httpProbe() below, all child_process.execFile with an
+ * argument list — never a shell string — and a timeout.
+ */
+
+const http = require('http');
+const nodeOs = require('os');
+const { execFile } = require('child_process');
+
+const BUNDLE_ID = 'com.prodcom.prodcom';
+const PROCESS_NAME = 'ProdCom';
+const API_PREF = 'applicationAPIEnabled'; // a UserDefaults bool in the app's own domain
+
+const MAX_ATTEMPTS = 3;
+const ATTEMPT_WAIT_MS = 5000;   // after acting, before asking whether the API answers
+const PROBE_TIMEOUT_MS = 3000;
+const QUICK_TOOL_MS = 5000;     // pgrep, defaults, pkill
+const SLOW_TOOL_MS = 10000;     // open
+const QUIT_ASK_MS = 5000;       // osascript's patience: a ProdCom that will not answer an Apple Event is told with SIGTERM
+const QUIT_WAIT_MS = 10000;     // for the process to be gone after asking it to quit
+const QUIT_POLL_MS = 500;
+
+/* ── the real machine ───────────────────────────────────────────────── */
+
+/** Run a program with an argument list (`execFileImpl` is child_process.execFile, or a fake in tests).
+    Never rejects: { ok, exitCode, error, stdout, stderr } —
+    exitCode is the program's own exit status, or null when it never got to exit
+    normally (not found, timed out, killed). */
+function runProgram(execFileImpl, file, args, timeout) {
+  return new Promise((resolve) => {
+    execFileImpl(file, args, { timeout, windowsHide: true }, (error, stdout, stderr) => {
+      resolve({
+        ok: !error,
+        exitCode: error ? (typeof error.code === 'number' ? error.code : null) : 0,
+        error,
+        stdout: String(stdout || ''),
+        stderr: String(stderr || ''),
+      });
+    });
+  });
+}
+
+/** What went wrong with an exec() result, for a message: how it failed, then the first line the program said about it. */
+function why(r) {
+  let how = 'unknown';
+  if (r.exitCode !== null) how = `exit ${r.exitCode}`;
+  else if (r.error) how = r.error.killed ? 'timed out' : (r.error.code || r.error.message);
+  const said = r.stderr.split('\n').map((l) => l.trim()).find(Boolean);
+  if (!said) return how;
+  return `${how}: ${said.length > 120 ? `${said.slice(0, 120)}…` : said}`;
+}
+
+/** A sleep the supervisor can cut short: resolves true after `ms`, false at once
+    when `signal` aborts (its timer is cleared, so nothing is left behind). */
+function abortableSleep(ms, signal) {
+  return new Promise((resolve) => {
+    if (signal && signal.aborted) return resolve(false);
+    let timer = null;
+    const onAbort = () => {
+      clearTimeout(timer);
+      resolve(false);
+    };
+    timer = setTimeout(() => {
+      if (signal) signal.removeEventListener('abort', onAbort);
+      resolve(true);
+    }, ms);
+    timer.unref?.();
+    if (signal) signal.addEventListener('abort', onAbort, { once: true });
+  });
+}
+
+/** `defaults read` prints a bool as 1 / 0; anything else is not an answer. */
+function parseApiPref(stdout) {
+  const s = String(stdout || '').trim().toLowerCase();
+  if (s === '1' || s === 'true' || s === 'yes') return true;
+  if (s === '0' || s === 'false' || s === 'no') return false;
+  return null;
+}
+
+/** The address as one canonical spelling, so a configured "::1" matches the interface's. */
+function canonicalAddress(a) {
+  let s = String(a ?? '').trim().toLowerCase();
+  if (s.startsWith('[') && s.endsWith(']')) s = s.slice(1, -1);
+  s = s.replace(/%.*$/, ''); // a scope id (fe80::1%en0)
+  if (s.includes(':')) {
+    try { s = new URL(`http://[${s}]`).hostname.slice(1, -1); } catch { /* not an address */ }
+  }
+  return s;
+}
+
+/** Is `host` this machine? `hostname` and `addresses` are this machine's own
+    (os.hostname(), every address of os.networkInterfaces()) — passed in so this
+    is a pure function. */
+function isLocalHostName(host, hostname, addresses) {
+  const h = canonicalAddress(host).replace(/\.$/, '');
+  if (h === '' || h === 'localhost' || h === '127.0.0.1' || h === '::1' || h === '0.0.0.0') return true;
+  const bare = (s) => String(s).toLowerCase().replace(/\.$/, '').replace(/\.local$/, '');
+  if (hostname && bare(hostname) === bare(h)) return true;
+  return (addresses || []).some((a) => canonicalAddress(a) === h);
+}
+
+/** Is anything answering HTTP at host:port? Any response counts, whatever its
+    status — the API's ping needs no key, and a 401 is still a live server. */
+function httpProbe(host, port) {
+  return new Promise((resolve) => {
+    let done = false;
+    const finish = (up) => {
+      if (done) return;
+      done = true;
+      resolve(up);
+    };
+    let h = canonicalAddress(host);
+    if (!h || h === '0.0.0.0') h = '127.0.0.1';
+    try {
+      const req = http.get({
+        host: h,
+        port,
+        path: '/api/v1/ping',
+        agent: false,
+        timeout: PROBE_TIMEOUT_MS,
+        headers: { accept: 'application/json' },
+      }, (res) => {
+        res.resume();
+        finish(true);
+      });
+      req.on('timeout', () => {
+        req.destroy();
+        finish(false);
+      });
+      req.on('error', () => finish(false));
+    } catch {
+      finish(false);
+    }
+  });
+}
+
+/**
+ * The operating-system layer: macOS commands, each run with execFile.
+ * `deps` is for tests only — { execFile, sleep, now } replace the real
+ * child_process.execFile, abortableSleep and Date.now.
+ */
+function defaultOs(deps = {}) {
+  const exec = (file, args, timeout) => runProgram(deps.execFile || execFile, file, args, timeout);
+  const wait = deps.sleep || abortableSleep;
+  const now = deps.now || Date.now;
+
+  async function isRunning() {
+    const r = await exec('/usr/bin/pgrep', ['-x', PROCESS_NAME], QUICK_TOOL_MS);
+    if (r.ok) return true;
+    if (r.exitCode === 1) return false; // pgrep's "nothing matched"
+    throw new Error(`Could not check whether ProdCom is running (${why(r)})`);
+  }
+
+  /** Open ProdCom in the background (-g): a booth Mac must not lose the keyboard from ProPresenter or OBS mid-service. */
+  async function launch() {
+    const r = await exec('/usr/bin/open', ['-g', '-b', BUNDLE_ID], SLOW_TOOL_MS);
+    if (r.ok) return;
+    if (r.exitCode !== null) throw new Error('ProdCom is not installed on this machine');
+    throw new Error(`Could not open ProdCom (${why(r)})`);
+  }
+
+  async function readApiPref() {
+    const r = await exec('/usr/bin/defaults', ['read', BUNDLE_ID, API_PREF], QUICK_TOOL_MS);
+    if (r.ok) return parseApiPref(r.stdout);
+    if (r.exitCode !== null) return null; // the key does not exist yet
+    // Not knowing is not the same as "off": it would restart a ProdCom that is fine.
+    throw new Error(`Could not read ProdCom's settings (${why(r)})`);
+  }
+
+  async function writeApiPref() {
+    const r = await exec('/usr/bin/defaults', ['write', BUNDLE_ID, API_PREF, '-bool', 'true'], QUICK_TOOL_MS);
+    if (!r.ok) throw new Error(`Could not turn on ProdCom's API (${why(r)})`);
+  }
+
+  /** Ask ProdCom to quit; if it will not be asked, terminate it. Resolves when it is gone.
+      Once `signal` aborts it does nothing more — no SIGTERM, no further look at the process list. */
+  async function quit(signal) {
+    const cancelled = () => Boolean(signal && signal.aborted);
+    if (cancelled()) throw new Error('cancelled');
+    const asked = await exec('/usr/bin/osascript', ['-e', `tell application id "${BUNDLE_ID}" to quit`], QUIT_ASK_MS);
+    if (cancelled()) throw new Error('cancelled');
+    if (!asked.ok) await exec('/usr/bin/pkill', ['-x', '-TERM', PROCESS_NAME], QUICK_TOOL_MS);
+    const until = now() + QUIT_WAIT_MS;
+    for (;;) {
+      if (cancelled()) throw new Error('cancelled');
+      if (!(await isRunning())) return;
+      if (now() >= until) throw new Error('ProdCom would not quit');
+      await wait(QUIT_POLL_MS, signal);
+    }
+  }
+
+  return {
+    platform: process.platform,
+    isLocalHost(host) {
+      const addresses = [];
+      for (const list of Object.values(nodeOs.networkInterfaces())) {
+        for (const a of list || []) addresses.push(a.address);
+      }
+      return isLocalHostName(host, nodeOs.hostname(), addresses);
+    },
+    isRunning,
+    launch,
+    readApiPref,
+    writeApiPref,
+    quit,
+  };
+}
+
+/* ── the decisions ──────────────────────────────────────────────────── */
+
+/**
+ * @param opts.settings  () => { autoStart, apiRestart }   read live, every time
+ * @param opts.target    () => { host, port }               where the module points ProdCom
+ * @param opts.probe     () => Promise<boolean>             optional; the API answers (default: GET /api/v1/ping)
+ * @param opts.os        the machine layer (see defaultOs); optional, defaults to the real one
+ * @param opts.sleep     (ms, signal) => Promise            optional; the default is cut short by `signal`
+ * @param opts.log       (line) => void
+ * @param opts.status    (state, message) => void           the tile's status; state is 'connecting' | 'error'
+ * @param opts.onUp      () => void                         optional; ProdCom answers again — the module may reconnect now
+ */
+function createSupervisor(opts) {
+  const { settings, target, log, status } = opts;
+  const onUp = opts.onUp || (() => {});
+  const os = opts.os || defaultOs();
+  const probe = opts.probe || (() => { const t = target(); return httpProbe(t.host, t.port); });
+  const sleep = opts.sleep || abortableSleep;
+
+  let stopped = false;
+  let busy = false;       // a run is in progress
+  let gaveUp = false;     // this outage is beyond the supervisor until a connection succeeds
+  let msg = null;         // the supervisor's words for the tile
+  let epoch = 0;          // a run belongs to the epoch it started in; a new one ends it
+  let abort = null;       // cuts the running run's sleep (and quit) short
+  let current = Promise.resolve();
+  const said = new Set(); // no-op reasons already logged
+
+  /** End the run in progress, if any: it unwinds without another word. */
+  function cancelRun() {
+    epoch += 1;
+    if (abort) {
+      abort.abort();
+      abort = null;
+    }
+  }
+
+  /** Nothing to do, and why — logged once per distinct reason, not on every reconnect tick. */
+  function skip(reason) {
+    if (!said.has(reason)) {
+      said.add(reason);
+      log(reason);
+    }
+    return reason;
+  }
+
+  /** Wait `ms`, but never past stop() or the end of the run, whatever `sleep` does with the signal. */
+  function pause(ms, signal) {
+    return new Promise((resolve) => {
+      if (signal.aborted) return resolve();
+      const done = () => {
+        signal.removeEventListener('abort', done);
+        resolve();
+      };
+      signal.addEventListener('abort', done, { once: true });
+      Promise.resolve().then(() => sleep(ms, signal)).then(done, done);
+    });
+  }
+
+  async function run(myEpoch, signal) {
+    const live = () => !stopped && epoch === myEpoch;
+    const say = (state, text) => {
+      msg = text;
+      status(state, text);
+    };
+    const giveUp = (text) => {
+      gaveUp = true;
+      say('error', text);
+      log(text);
+    };
+
+    let restarted = false;  // ProdCom was quit and opened again in this run — once is all it gets
+    let opened = false;     // this run opened ProdCom itself: if it is running now, it may simply still be starting up
+    let apiOnSilent = false; // the latest look found ProdCom running, API on, port silent, and not of our opening
+    try {
+      for (let n = 1; n <= MAX_ATTEMPTS; n += 1) {
+        const s = settings();
+        apiOnSilent = false;
+        // Look afresh every attempt: one sample proves little (a ProdCom that is quitting still shows as running).
+        const running = await os.isRunning();
+        if (!live()) return;
+        if (!running) {
+          // Not there — never opened, quit by hand, or gone since the restart. A launch, never a second quit.
+          await os.launch();
+          if (!live()) return;
+          opened = true;
+          say('connecting', `ProdCom is not running — starting it (${n}/${MAX_ATTEMPTS})`);
+        } else if (!restarted) {
+          const pref = await os.readApiPref();
+          if (!live()) return;
+          if (pref === true) {
+            // Running with its API on and the port still silent. Slow to start, quitting, or the wrong port —
+            // one look cannot tell, so wait and look again; only the last attempt blames the port.
+            apiOnSilent = !opened;
+          } else {
+            // The API is off (or the key was never written): switch it on for ProdCom's next start…
+            await os.writeApiPref();
+            if (!live()) return;
+            // …and restart ProdCom only if the setting really holds: that restart cuts its intercom.
+            const now = await os.readApiPref();
+            if (!live()) return;
+            if (now !== true) {
+              return giveUp(`Could not turn on ProdCom's API — it still reads ${now === false ? 'off' : 'unset'}`);
+            }
+            if (!s.apiRestart) {
+              return giveUp("ProdCom's API is off — restart ProdCom to turn it on");
+            }
+            say('connecting', "ProdCom's API is off — turning it on and restarting ProdCom");
+            await os.quit(signal);
+            if (!live()) return;
+            await os.launch();
+            if (!live()) return;
+            restarted = true;
+          }
+        }
+        await pause(ATTEMPT_WAIT_MS, signal);
+        if (!live()) return;
+        const up = await Promise.resolve().then(probe).catch(() => false);
+        if (!live()) return;
+        if (up) {
+          log(`ProdCom is up after ${n} attempt(s)`);
+          say('connecting', 'ProdCom is back — reconnecting');
+          try {
+            onUp();
+          } catch (err) {
+            log(`ProdCom auto-start: reconnect nudge failed (${err && err.message ? err.message : err})`);
+          }
+          return;
+        }
+      }
+      giveUp(apiOnSilent
+        ? `ProdCom is running with its API on, but port ${target().port} does not answer — check its API port`
+        : 'ProdCom would not start — open it by hand');
+    } catch (err) {
+      if (!live()) return;
+      giveUp(err && err.message ? err.message : String(err));
+    }
+  }
+
+  /** Decide whether a run is called for, and start it: the reason it did not, or null. */
+  function start(code) {
+    if (stopped) return 'stopped';
+    if (!settings().autoStart) return skip('ProdCom auto-start is off');
+    if (os.platform !== 'darwin') return skip('ProdCom auto-start is macOS only');
+    const { host } = target();
+    if (!os.isLocalHost(host)) return skip(`ProdCom at ${host} is not on this machine`);
+    if (busy) return skip('ProdCom auto-start is already working on it');
+    if (gaveUp) return skip('ProdCom auto-start has given up until ProdCom answers');
+
+    busy = true;
+    said.clear(); // a new outage says its reasons again
+    const myEpoch = epoch;
+    const controller = new AbortController();
+    abort = controller;
+    log(`ProdCom did not answer (${code}) — checking whether to start it`);
+    current = run(myEpoch, controller.signal)
+      .catch((err) => log(`ProdCom auto-start failed: ${err && err.message ? err.message : err}`))
+      .then(() => {
+        busy = false;
+        if (abort === controller) abort = null;
+      });
+    return null;
+  }
+
+  return {
+    /**
+     * A connection to ProdCom failed (`code` is the error code). Starts a run
+     * unless there is nothing to do; answers the reason when it does nothing,
+     * null when it started one.
+     */
+    kick(code) {
+      try {
+        return start(code);
+      } catch (err) {
+        // Called from the module's reconnect path: whatever goes wrong here must not stop it reconnecting.
+        return skip(`ProdCom auto-start could not decide (${err && err.message ? err.message : err})`);
+      }
+    },
+
+    /** A connection to ProdCom succeeded: this outage is over, the next gets a fresh run. */
+    noteReachable() {
+      if (busy) log('ProdCom answered on its own — ending the start-up run');
+      gaveUp = false;
+      msg = null;
+      said.clear();
+      cancelRun();
+    },
+
+    /** The supervisor's words for the tile while it is working or has given up, else null. */
+    message() {
+      return busy || gaveUp ? msg : null;
+    },
+
+    /** Resolves when no run is in progress. */
+    idle() {
+      return current;
+    },
+
+    stop() {
+      stopped = true;
+      msg = null;
+      cancelRun();
+    },
+  };
+}
+
+module.exports = { createSupervisor, defaultOs, isLocalHostName, parseApiPref, abortableSleep };

modules/prodcom-transcript/supervisor.test.js

@@ -0,0 +1,832 @@
+'use strict';
+
+/**
+ * Tests for the ProdCom supervisor (supervisor.js).
+ *
+ *   node --test modules/prodcom-transcript/supervisor.test.js
+ *
+ * Fakes only. The decisions run on a fake machine layer (is ProdCom running,
+ * open it, its preference, quit it), a fake ping, a fake sleep, log and tile
+ * status; the real machine layer (defaultOs) runs only on a fake execFile, a
+ * fake sleep and a fake clock. Nothing here starts, quits or configures a real
+ * ProdCom, runs a command or waits on a timer. (One test aborts the real
+ * abortableSleep with an hour on it: the timer is cleared at once.)
+ */
+
+const test = require('node:test');
+const assert = require('node:assert/strict');
+const {
+  createSupervisor, defaultOs, isLocalHostName, parseApiPref, abortableSleep,
+} = require('./supervisor');
+
+const START = (n) => ['connecting', `ProdCom is not running — starting it (${n}/3)`];
+const BACK = ['connecting', 'ProdCom is back — reconnecting'];
+const NO_START = ['error', 'ProdCom would not start — open it by hand'];
+const API_OFF_RESTART = ['connecting', "ProdCom's API is off — turning it on and restarting ProdCom"];
+const API_OFF_STAY = ['error', "ProdCom's API is off — restart ProdCom to turn it on"];
+const API_PORT = ['error', 'ProdCom is running with its API on, but port 24480 does not answer — check its API port'];
+const NOT_STUCK = (what) => ['error', `Could not turn on ProdCom's API — it still reads ${what}`];
+
+/**
+ * A supervisor on fakes. `calls` is every machine action in order, `sleeps` the
+ * waits asked for, `statuses` what the tile was told, `logs` what the log got,
+ * `ups` how often onUp fired. `hold` makes the Nth call of a fake hold until
+ * the test lets it go — `hold: { 'launch#1': true }`, then `r.release('launch#1')`
+ * — so a run can be looked at, or ended, in the middle of a machine call.
+ */
+function rig(o = {}) {
+  const settings = { autoStart: true, apiRestart: true, ...(o.settings || {}) };
+  const machine = { running: false, pref: null, local: true, ...(o.machine || {}) };
+  const calls = [];
+  const sleeps = [];
+  const statuses = [];
+  const logs = [];
+  const order = []; // statuses and onUp, in the order they happened
+  const probes = [...(o.probes || [])];
+  const counts = {};
+  const gates = {};
+  let probed = 0;
+  let ups = 0;
+
+  const held = (name) => {
+    counts[name] = (counts[name] || 0) + 1;
+    const key = `${name}#${counts[name]}`;
+    if (!(o.hold && o.hold[key])) return null;
+    return new Promise((resolve) => { gates[key] = resolve; });
+  };
+
+  const os = {
+    platform: o.platform || 'darwin',
+    isLocalHost: (host) => {
+      calls.push(`isLocalHost:${host}`);
+      return machine.local;
+    },
+    isRunning: async () => {
+      calls.push('isRunning');
+      const g = held('isRunning');
+      if (g) await g;
+      if (o.runningError) throw new Error(o.runningError);
+      // `runningSeq` scripts it per attempt (the last answer repeats); otherwise it is whatever `machine.running` says.
+      if (o.runningSeq) return o.runningSeq.length > 1 ? o.runningSeq.shift() : o.runningSeq[0];
+      return machine.running;
+    },
+    launch: async () => {
+      calls.push('launch');
+      const g = held('launch');
+      if (g) await g;
+      if (o.launchError) throw new Error(o.launchError);
+    },
+    readApiPref: async () => {
+      calls.push('readApiPref');
+      const g = held('readApiPref');
+      if (g) await g;
+      if (o.readError) throw new Error(o.readError);
+      return machine.pref;
+    },
+    writeApiPref: async () => {
+      calls.push('writeApiPref');
+      const g = held('writeApiPref');
+      if (g) await g;
+      if (o.writeError) throw new Error(o.writeError);
+      if (o.writeSticks !== false) machine.pref = true; // the preference now reads on, as `defaults write` makes it
+    },
+    quit: async () => {
+      calls.push('quit');
+      const g = held('quit');
+      if (g) await g;
+      if (o.quitError) throw new Error(o.quitError);
+    },
+  };
+
+  const sup = createSupervisor({
+    settings: () => settings,
+    target: () => ({ host: o.host ?? '127.0.0.1', port: 24480 }),
+    probe: async () => {
+      probed += 1;
+      const g = held('probe');
+      if (g) await g;
+      return probes.length ? probes.shift() : false;
+    },
+    os,
+    sleep: o.sleep || ((ms) => {
+      sleeps.push(ms);
+      return Promise.resolve();
+    }),
+    log: (line) => logs.push(line),
+    status: (state, message) => {
+      statuses.push([state, message]);
+      order.push(`status:${message}`);
+    },
+    onUp: () => {
+      ups += 1;
+      order.push('onUp');
+      if (o.upError) throw new Error(o.upError);
+    },
+  });
+
+  return {
+    sup, settings, machine, calls, sleeps, statuses, logs, order,
+    probed: () => probed,
+    ups: () => ups,
+    isHeld: (key) => typeof gates[key] === 'function',
+    release: (key) => gates[key](),
+    /** The machine actions, without the host check every kick starts with. */
+    actions: () => calls.filter((c) => !c.startsWith('isLocalHost')),
+  };
+}
+
+/** A sleep that waits until the test lets it go — to look at a run mid-flight. */
+function heldSleep() {
+  const held = [];
+  const sleep = (ms, signal) => new Promise((resolve) => held.push({ ms, signal, release: resolve }));
+  return { sleep, held, releaseAll: () => held.splice(0).forEach((h) => h.release()) };
+}
+
+const tick = () => new Promise((resolve) => setImmediate(resolve));
+
+/* ── a run, start to finish ─────────────────────────────────────────── */
+
+test('not running: opens ProdCom, and the first probe answers', async () => {
+  const r = rig({ probes: [true] });
+  assert.equal(r.sup.kick('ECONNREFUSED'), null);
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), ['isRunning', 'launch']);
+  assert.deepEqual(r.statuses, [START(1), BACK]);
+  assert.deepEqual(r.sleeps, [5000]);
+  assert.equal(r.probed(), 1);
+  assert.ok(r.logs.includes('ProdCom is up after 1 attempt(s)'));
+  assert.equal(r.ups(), 1, 'the module is told to reconnect now');
+  assert.equal(r.order[r.order.length - 1], 'onUp', '…after the tile has been told');
+  // The run ended well: the module's own reconnect does the rest, and fail() may speak for itself again.
+  assert.equal(r.sup.message(), null);
+});
+
+test('not running: three tries that never answer, then it gives up and stays quiet', async () => {
+  const r = rig({ probes: [false, false, false] });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), ['isRunning', 'launch', 'isRunning', 'launch', 'isRunning', 'launch']);
+  assert.deepEqual(r.sleeps, [5000, 5000, 5000]);
+  assert.equal(r.probed(), 3);
+  assert.deepEqual(r.statuses, [START(1), START(2), START(3), NO_START]);
+  assert.ok(r.logs.includes(NO_START[1]));
+  assert.equal(r.sup.message(), NO_START[1]); // fail() keeps this instead of "unreachable"
+  assert.equal(r.ups(), 0, 'no reconnect nudge for a run that failed');
+
+  const before = { statuses: r.statuses.length, sleeps: r.sleeps.length, probed: r.probed() };
+  for (let i = 0; i < 5; i += 1) assert.equal(typeof r.sup.kick('ECONNREFUSED'), 'string');
+  await r.sup.idle();
+  assert.equal(r.actions().length, 6, 'no machine action once given up');
+  assert.equal(r.statuses.length, before.statuses);
+  assert.equal(r.sleeps.length, before.sleeps);
+  assert.equal(r.probed(), before.probed);
+});
+
+test('a reconnect nudge that throws does not spoil the run', async () => {
+  const r = rig({ probes: [true], upError: 'boom' });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.statuses, [START(1), BACK]);
+  assert.ok(r.logs.some((l) => l.includes('reconnect nudge failed (boom)')));
+  assert.equal(r.sup.message(), null);
+});
+
+/* ── the API is off ─────────────────────────────────────────────────── */
+
+test('running with the API off: writes the preference, checks it took, restarts ProdCom once, then only looks and probes', async () => {
+  const r = rig({ machine: { running: true, pref: null }, probes: [false, false, true] });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), [
+    'isRunning', 'readApiPref', 'writeApiPref', 'readApiPref', 'quit', 'launch',
+    'isRunning', 'isRunning', // attempts 2 and 3: still there, so nothing but the probe
+  ]);
+  assert.deepEqual(r.statuses, [API_OFF_RESTART, BACK]);
+  assert.deepEqual(r.sleeps, [5000, 5000, 5000]);
+  assert.equal(r.probed(), 3);
+  assert.equal(r.calls.filter((c) => c === 'quit').length, 1);
+  assert.ok(r.logs.includes('ProdCom is up after 3 attempt(s)'));
+});
+
+test('the restart waits for the preference to read on: when it does not stick, nothing is quit', async () => {
+  for (const [pref, what] of [[null, 'unset'], [false, 'off']]) {
+    for (const apiRestart of [true, false]) {
+      const r = rig({ machine: { running: true, pref }, writeSticks: false, settings: { apiRestart } });
+      r.sup.kick('ECONNREFUSED');
+      await r.sup.idle();
+      assert.deepEqual(r.actions(), ['isRunning', 'readApiPref', 'writeApiPref', 'readApiPref'], `pref ${pref}, apiRestart ${apiRestart}`);
+      assert.deepEqual(r.statuses, [NOT_STUCK(what)]);
+      assert.equal(r.sleeps.length, 0);
+      assert.equal(r.probed(), 0);
+      assert.equal(r.sup.message(), NOT_STUCK(what)[1]);
+      assert.equal(typeof r.sup.kick('ECONNREFUSED'), 'string');
+      assert.equal(r.actions().length, 4);
+    }
+  }
+});
+
+test('a preference that cannot be written: says so, restarts nothing', async () => {
+  const r = rig({ machine: { running: true, pref: false }, writeError: "Could not turn on ProdCom's API (exit 1: no)" });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), ['isRunning', 'readApiPref', 'writeApiPref']);
+  assert.deepEqual(r.statuses, [['error', "Could not turn on ProdCom's API (exit 1: no)"]]);
+});
+
+test('running with the API off and restarting not allowed: writes the preference and says so', async () => {
+  const r = rig({ machine: { running: true, pref: false }, settings: { apiRestart: false } });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), ['isRunning', 'readApiPref', 'writeApiPref', 'readApiPref']);
+  assert.deepEqual(r.statuses, [API_OFF_STAY]);
+  assert.equal(r.sleeps.length, 0);
+  assert.equal(r.probed(), 0);
+  assert.equal(r.sup.message(), API_OFF_STAY[1]);
+  assert.equal(typeof r.sup.kick('ECONNREFUSED'), 'string');
+  assert.equal(r.actions().length, 4);
+});
+
+test('after the one restart, a ProdCom that is not running is opened again — never quit a second time', async () => {
+  const r = rig({ runningSeq: [true, false, true], machine: { pref: null }, probes: [false, false, true] });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), [
+    'isRunning', 'readApiPref', 'writeApiPref', 'readApiPref', 'quit', 'launch',
+    'isRunning', 'launch', // attempt 2: gone again — a launch
+    'isRunning',           // attempt 3: there; just the probe
+  ]);
+  assert.deepEqual(r.statuses, [API_OFF_RESTART, START(2), BACK]);
+  assert.equal(r.calls.filter((c) => c === 'quit').length, 1);
+  assert.ok(r.logs.includes('ProdCom is up after 3 attempt(s)'));
+});
+
+/* ── the API is on, and the port is silent ──────────────────────────── */
+
+test('running with the API on: it is looked at again each attempt, and only the last blames the port', async () => {
+  const r = rig({ machine: { running: true, pref: true } });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), ['isRunning', 'readApiPref', 'isRunning', 'readApiPref', 'isRunning', 'readApiPref']);
+  assert.deepEqual(r.statuses, [API_PORT], 'no verdict before the third look');
+  assert.deepEqual(r.sleeps, [5000, 5000, 5000]);
+  assert.equal(r.probed(), 3);
+  assert.equal(r.sup.message(), API_PORT[1]);
+  assert.equal(r.calls.includes('writeApiPref'), false);
+  assert.equal(r.calls.includes('quit'), false);
+  assert.equal(r.calls.includes('launch'), false);
+});
+
+test('running with the API on, and it starts answering on the second look: no blame at all', async () => {
+  const r = rig({ machine: { running: true, pref: true }, probes: [false, true] });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), ['isRunning', 'readApiPref', 'isRunning', 'readApiPref']);
+  assert.deepEqual(r.statuses, [BACK]);
+  assert.ok(r.logs.includes('ProdCom is up after 2 attempt(s)'));
+});
+
+test('running with the API on, then gone on the second look (it was quitting): it is opened', async () => {
+  const r = rig({ runningSeq: [true, false], machine: { pref: true }, probes: [false, true] });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), ['isRunning', 'readApiPref', 'isRunning', 'launch']);
+  assert.deepEqual(r.statuses, [START(2), BACK]);
+  assert.ok(r.logs.includes('ProdCom is up after 2 attempt(s)'));
+});
+
+test('gone only on the last look: opened, and if it still will not answer that is "would not start"', async () => {
+  const r = rig({ runningSeq: [true, true, false], machine: { pref: true } });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), ['isRunning', 'readApiPref', 'isRunning', 'readApiPref', 'isRunning', 'launch']);
+  assert.deepEqual(r.statuses, [START(3), NO_START]);
+});
+
+test('a ProdCom this run just opened, still starting up with its API on, is waited for — not blamed on the port', async () => {
+  // Attempt 1: not running → opened; the 5 s probe is false. Attempt 2: it is running now, its pref is on, the port is
+  // still silent — that is a slow start, not a wrong port.
+  const r = rig({ runningSeq: [false, true], machine: { pref: true }, probes: [false, true] });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), ['isRunning', 'launch', 'isRunning', 'readApiPref']);
+  assert.deepEqual(r.statuses, [START(1), BACK], 'no error status on the way');
+  assert.deepEqual(r.sleeps, [5000, 5000]);
+  assert.equal(r.probed(), 2);
+  assert.ok(r.logs.includes('ProdCom is up after 2 attempt(s)'));
+  assert.equal(r.calls.includes('quit'), false);
+  assert.equal(r.calls.includes('writeApiPref'), false);
+});
+
+test('a ProdCom this run just opened that turns out to have its API off still gets the one restart', async () => {
+  const r = rig({ runningSeq: [false, true], machine: { pref: null }, probes: [false, false, true] });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), [
+    'isRunning', 'launch',
+    'isRunning', 'readApiPref', 'writeApiPref', 'readApiPref', 'quit', 'launch',
+    'isRunning',
+  ]);
+  assert.deepEqual(r.statuses, [START(1), API_OFF_RESTART, BACK]);
+  assert.equal(r.calls.filter((c) => c === 'quit').length, 1);
+  assert.ok(r.logs.includes('ProdCom is up after 3 attempt(s)'));
+});
+
+test('a ProdCom this run opened that never answers, API on: three tries, then "would not start"', async () => {
+  const r = rig({ runningSeq: [false, true, true], machine: { pref: true }, probes: [false, false, false] });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), ['isRunning', 'launch', 'isRunning', 'readApiPref', 'isRunning', 'readApiPref']);
+  assert.deepEqual(r.statuses, [START(1), NO_START]);
+});
+
+/* ── when there is nothing to do ────────────────────────────────────── */
+
+test('nothing to do for a ProdCom on another machine', async () => {
+  const r = rig({ host: '10.1.1.50', machine: { local: false } });
+  const why = r.sup.kick('ECONNREFUSED');
+  assert.equal(why, 'ProdCom at 10.1.1.50 is not on this machine');
+  for (let i = 0; i < 4; i += 1) r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), []);
+  assert.equal(r.statuses.length, 0);
+  assert.equal(r.logs.filter((l) => l === why).length, 1, 'the reason is logged once, not on every tick');
+  assert.equal(r.sup.message(), null);
+});
+
+test('nothing to do when switched off', async () => {
+  const r = rig({ settings: { autoStart: false } });
+  assert.equal(typeof r.sup.kick('ECONNREFUSED'), 'string');
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.calls, []);
+  assert.equal(r.statuses.length, 0);
+  assert.equal(r.logs.length, 1);
+});
+
+test('the setting is read live: switching it on later takes effect without a new supervisor', async () => {
+  const r = rig({ settings: { autoStart: false }, probes: [true] });
+  assert.equal(typeof r.sup.kick('ECONNREFUSED'), 'string');
+  r.settings.autoStart = true;
+  assert.equal(r.sup.kick('ECONNREFUSED'), null);
+  await r.sup.idle();
+  assert.deepEqual(r.statuses, [START(1), BACK]);
+});
+
+test('nothing to do off macOS', async () => {
+  const r = rig({ platform: 'win32' });
+  assert.equal(r.sup.kick('ECONNREFUSED'), 'ProdCom auto-start is macOS only');
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), []);
+  assert.equal(r.statuses.length, 0);
+  assert.equal(r.logs.filter((l) => l === 'ProdCom auto-start is macOS only').length, 1);
+});
+
+test('a kick while a run is in progress does nothing', async () => {
+  const h = heldSleep();
+  const r = rig({ sleep: h.sleep, probes: [true] });
+  assert.equal(r.sup.kick('ECONNREFUSED'), null);
+  await tick();
+  assert.equal(h.held.length, 1, 'the run is waiting out its five seconds');
+  assert.equal(typeof r.sup.kick('ECONNREFUSED'), 'string');
+  assert.equal(typeof r.sup.kick('ETIMEDOUT'), 'string');
+  assert.equal(r.sup.message(), START(1)[1], 'while it works, its words are the tile\'s');
+  assert.deepEqual(r.actions(), ['isRunning', 'launch'], 'no second run started');
+  h.releaseAll();
+  await r.sup.idle();
+  assert.deepEqual(r.statuses, [START(1), BACK]);
+});
+
+test('kick() never throws into the reconnect loop, whatever the machine layer does', async () => {
+  const r = rig();
+  const sup = createSupervisor({
+    settings: () => r.settings,
+    target: () => ({ host: '127.0.0.1', port: 24480 }),
+    os: { platform: 'darwin', isLocalHost: () => { throw new Error('no network interfaces'); } },
+    probe: async () => true,
+    sleep: () => Promise.resolve(),
+    log: (line) => r.logs.push(line),
+    status: (s, m) => r.statuses.push([s, m]),
+  });
+  assert.equal(sup.kick('ECONNREFUSED'), 'ProdCom auto-start could not decide (no network interfaces)');
+  assert.equal(r.statuses.length, 0);
+});
+
+/* ── an outage ends, a new one begins ───────────────────────────────── */
+
+test('after giving up, a successful connection re-arms it for the next outage', async () => {
+  const r = rig({ machine: { running: true, pref: true } });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  const first = r.actions().length;
+  assert.equal(first, 6);
+  assert.equal(typeof r.sup.kick('ECONNREFUSED'), 'string');
+  assert.equal(r.actions().length, first);
+
+  r.sup.noteReachable();
+  assert.equal(r.sup.message(), null);
+  assert.equal(r.sup.kick('ECONNREFUSED'), null);
+  await r.sup.idle();
+  assert.equal(r.actions().length, first * 2);
+  assert.deepEqual(r.statuses, [API_PORT, API_PORT]);
+});
+
+test('a second outage logs its reasons again', async () => {
+  const r = rig({ host: '10.1.1.50', machine: { local: false } });
+  const why = 'ProdCom at 10.1.1.50 is not on this machine';
+  r.sup.kick('ECONNREFUSED');
+  r.sup.kick('ECONNREFUSED');
+  assert.equal(r.logs.filter((l) => l === why).length, 1);
+  r.sup.noteReachable(); // the first outage is over
+  r.sup.kick('ECONNREFUSED');
+  r.sup.kick('ECONNREFUSED');
+  assert.equal(r.logs.filter((l) => l === why).length, 2);
+
+  // And a run that starts clears them too: "has given up" is said once per outage, not once ever.
+  const g = rig({ machine: { running: true, pref: true } });
+  const gaveUp = 'ProdCom auto-start has given up until ProdCom answers';
+  g.sup.kick('ECONNREFUSED');
+  await g.sup.idle();
+  g.sup.kick('ECONNREFUSED');
+  g.sup.kick('ECONNREFUSED');
+  assert.equal(g.logs.filter((l) => l === gaveUp).length, 1);
+  g.sup.noteReachable();
+  g.sup.kick('ECONNREFUSED');
+  await g.sup.idle();
+  g.sup.kick('ECONNREFUSED');
+  assert.equal(g.logs.filter((l) => l === gaveUp).length, 2);
+});
+
+test('a run that starts clears the reasons already logged, even with no connection in between', async () => {
+  const h = heldSleep();
+  const r = rig({ sleep: h.sleep, probes: [true, true] });
+  const busy = 'ProdCom auto-start is already working on it';
+  const said = () => r.logs.filter((l) => l === busy).length;
+  r.sup.kick('ECONNREFUSED');
+  await tick();
+  r.sup.kick('ECONNREFUSED');
+  r.sup.kick('ECONNREFUSED');
+  assert.equal(said(), 1);
+  h.releaseAll();
+  await r.sup.idle(); // the run ended well; the module has not connected (noteReachable) yet
+  assert.equal(r.sup.kick('ECONNREFUSED'), null, 'a new run');
+  await tick();
+  r.sup.kick('ECONNREFUSED');
+  assert.equal(said(), 2, 'its reason is logged again');
+  h.releaseAll();
+  await r.sup.idle();
+});
+
+test('a connection that succeeds mid-run ends the run without another word', async () => {
+  const h = heldSleep();
+  const r = rig({ sleep: h.sleep, probes: [true] });
+  r.sup.kick('ECONNREFUSED');
+  await tick();
+  assert.deepEqual(r.statuses, [START(1)]);
+  r.sup.noteReachable(); // the module got through on its own while we waited
+  h.releaseAll();
+  await r.sup.idle();
+  assert.equal(r.probed(), 0, 'no probe after the outage was over');
+  assert.deepEqual(r.statuses, [START(1)], 'nothing overwrites the module\'s own "Live"');
+  assert.equal(r.ups(), 0);
+  assert.equal(r.sup.message(), null);
+  assert.equal(r.sup.kick('ECONNREFUSED'), null, 'and the next outage is a fresh run');
+  await tick();
+  assert.deepEqual(r.statuses, [START(1), START(1)]);
+  r.sup.stop();
+  await r.sup.idle();
+});
+
+/* ── stop() and noteReachable() land mid-run ────────────────────────── */
+
+test('stop() during the sleep ends the run: no more launches, no probes', async () => {
+  const h = heldSleep();
+  const r = rig({ sleep: h.sleep, probes: [true] });
+  r.sup.kick('ECONNREFUSED');
+  await tick();
+  assert.equal(h.held.length, 1);
+  assert.equal(h.held[0].signal.aborted, false);
+  r.sup.stop();
+  assert.equal(h.held[0].signal.aborted, true, 'the sleep was told to cut itself short');
+  await r.sup.idle(); // settles even though the fake sleep never does
+  assert.deepEqual(r.actions(), ['isRunning', 'launch']);
+  assert.equal(r.probed(), 0);
+  assert.deepEqual(r.statuses, [START(1)]);
+  assert.equal(r.sup.message(), null);
+  assert.equal(r.sup.kick('ECONNREFUSED'), 'stopped');
+  h.releaseAll();
+  await tick();
+  assert.deepEqual(r.actions(), ['isRunning', 'launch']);
+  assert.equal(r.probed(), 0);
+  assert.equal(r.ups(), 0);
+});
+
+// Each machine call a run makes, held in flight; the run is ended (by the module
+// connecting, or by stop()) while the call is out, and nothing may follow it:
+// no status, no log, no further call, no reconnect nudge.
+const MID_CALL = [
+  ['isRunning', 'isRunning#1', { machine: { running: false } }],
+  ['launch', 'launch#1', { machine: { running: false } }],
+  ['readApiPref', 'readApiPref#1', { machine: { running: true, pref: null } }],
+  ['writeApiPref', 'writeApiPref#1', { machine: { running: true, pref: null } }],
+  ['readApiPref (the check that it took)', 'readApiPref#2', { machine: { running: true, pref: null } }],
+  ['quit', 'quit#1', { machine: { running: true, pref: null } }],
+  ['launch (after the quit)', 'launch#1', { machine: { running: true, pref: null } }],
+  ['probe', 'probe#1', { machine: { running: false }, probes: [true] }],
+];
+for (const [label, key, setup] of MID_CALL) {
+  for (const how of ['noteReachable', 'stop']) {
+    test(`${how}() while ${label} is in flight: nothing follows`, async () => {
+      const r = rig({ ...setup, hold: { [key]: true } });
+      r.sup.kick('ECONNREFUSED');
+      await tick();
+      assert.ok(r.isHeld(key), `${key} is in flight`);
+      r.sup[how]();
+      const snapshot = { calls: [...r.calls], statuses: [...r.statuses], logs: [...r.logs], order: [...r.order], sleeps: [...r.sleeps] };
+      r.release(key);
+      await r.sup.idle();
+      await tick();
+      assert.deepEqual(r.calls, snapshot.calls, 'no further machine call');
+      assert.deepEqual(r.statuses, snapshot.statuses, 'no status');
+      assert.deepEqual(r.logs, snapshot.logs, 'no log line');
+      assert.deepEqual(r.order, snapshot.order, 'no nudge');
+      assert.deepEqual(r.sleeps, snapshot.sleeps, 'no further wait');
+      assert.equal(r.probed(), key === 'probe#1' ? 1 : 0, 'no further probe');
+      assert.equal(r.ups(), 0);
+    });
+  }
+}
+
+// …and the same when the call that was in flight ends in an error: the catch
+// must not report a failure of a run that is already over.
+const MID_CALL_ERROR = [
+  ['isRunning', 'isRunning#1', { machine: { running: false }, runningError: 'pgrep failed' }],
+  ['launch', 'launch#1', { machine: { running: false }, launchError: 'ProdCom is not installed on this machine' }],
+  ['readApiPref', 'readApiPref#1', { machine: { running: true, pref: null }, readError: 'defaults failed' }],
+  ['writeApiPref', 'writeApiPref#1', { machine: { running: true, pref: null }, writeError: 'write failed' }],
+  ['quit', 'quit#1', { machine: { running: true, pref: null }, quitError: 'ProdCom would not quit' }],
+  ['launch (after the quit)', 'launch#1', { machine: { running: true, pref: null }, launchError: 'launch failed' }],
+];
+for (const [label, key, setup] of MID_CALL_ERROR) {
+  for (const how of ['noteReachable', 'stop']) {
+    test(`${how}() while ${label} is in flight and then fails: no error is reported`, async () => {
+      const r = rig({ ...setup, hold: { [key]: true } });
+      r.sup.kick('ECONNREFUSED');
+      await tick();
+      assert.ok(r.isHeld(key), `${key} is in flight`);
+      r.sup[how]();
+      const snapshot = { calls: [...r.calls], statuses: [...r.statuses], logs: [...r.logs] };
+      r.release(key);
+      await r.sup.idle();
+      await tick();
+      assert.deepEqual(r.calls, snapshot.calls);
+      assert.deepEqual(r.statuses, snapshot.statuses, 'no error status');
+      assert.deepEqual(r.logs, snapshot.logs, 'no error log');
+      assert.equal(r.sup.message(), null, 'and nothing latched as given up');
+      if (how === 'noteReachable') assert.equal(r.sup.kick('ECONNREFUSED'), null, 'the next outage still gets a run');
+      r.sup.stop();
+      await r.sup.idle();
+    });
+  }
+}
+
+test('ProdCom is not installed: says so and gives up', async () => {
+  const r = rig({ launchError: 'ProdCom is not installed on this machine' });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), ['isRunning', 'launch']);
+  assert.deepEqual(r.statuses, [['error', 'ProdCom is not installed on this machine']]);
+  assert.equal(r.sleeps.length, 0);
+  assert.equal(r.probed(), 0);
+  assert.equal(r.sup.message(), 'ProdCom is not installed on this machine');
+  assert.equal(typeof r.sup.kick('ECONNREFUSED'), 'string');
+  assert.equal(r.actions().length, 2);
+});
+
+test('ProdCom will not quit: says so, does not open it again, gives up', async () => {
+  const r = rig({ machine: { running: true, pref: null }, quitError: 'ProdCom would not quit' });
+  r.sup.kick('ECONNREFUSED');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), ['isRunning', 'readApiPref', 'writeApiPref', 'readApiPref', 'quit']);
+  assert.deepEqual(r.statuses, [API_OFF_RESTART, ['error', 'ProdCom would not quit']]);
+  assert.equal(r.sleeps.length, 0);
+  assert.equal(typeof r.sup.kick('ECONNREFUSED'), 'string');
+});
+
+test('a machine call that fails for another reason gives up with its message', async () => {
+  const r = rig({ machine: { running: true }, readError: "Could not read ProdCom's settings (timed out)" });
+  r.sup.kick('ETIMEDOUT');
+  await r.sup.idle();
+  assert.deepEqual(r.actions(), ['isRunning', 'readApiPref'], 'not knowing the setting is not a reason to restart ProdCom');
+  assert.deepEqual(r.statuses, [['error', "Could not read ProdCom's settings (timed out)"]]);
+});
+
+/* ── the real machine layer, on a fake execFile ─────────────────────── */
+
+const ok = (stdout = '') => ({ stdout });
+const exited = (code, stderr = '') => ({ error: Object.assign(new Error('Command failed'), { code }), stderr });
+const timedOut = () => ({ error: Object.assign(new Error('timed out'), { killed: true, signal: 'SIGTERM', code: null }) });
+const BUNDLE = 'com.prodcom.prodcom';
+
+/** A fake child_process.execFile answering from `script(file, args, n)` (a result, or a promise of one). */
+function fakeExecFile(script) {
+  const calls = [];
+  const execFile = (file, args, opts, cb) => {
+    calls.push({ file, args, opts, line: [file, ...args].join(' ') });
+    Promise.resolve(script(file, args, calls.length)).then((res) => {
+      const r = res || {};
+      cb(r.error || null, r.stdout || '', r.stderr || '');
+    });
+  };
+  return { execFile, calls, lines: () => calls.map((c) => c.line) };
+}
+
+/** A fake clock: sleeping advances it, so a wait that would last ten seconds takes no time. */
+function fakeClock() {
+  let t = 0;
+  const slept = [];
+  return {
+    now: () => t,
+    sleep: (ms) => {
+      slept.push(ms);
+      t += ms;
+      return Promise.resolve(true);
+    },
+    slept,
+  };
+}
+
+test('default os: reading the preference — 1, 0, a missing key, a timeout', async () => {
+  const answers = [ok('1\n'), ok('0\n'), exited(1, 'The domain/default pair of (com.prodcom.prodcom, applicationAPIEnabled) does not exist'), timedOut()];
+  const x = fakeExecFile(() => answers.shift());
+  const os = defaultOs({ execFile: x.execFile });
+  assert.equal(await os.readApiPref(), true);
+  assert.equal(await os.readApiPref(), false);
+  assert.equal(await os.readApiPref(), null, 'a missing key is "not set", not an error');
+  await assert.rejects(os.readApiPref(), /^Error: Could not read ProdCom's settings \(timed out\)$/);
+  assert.equal(x.lines()[0], `/usr/bin/defaults read ${BUNDLE} applicationAPIEnabled`);
+  assert.equal(x.calls[0].opts.timeout, 5000);
+});
+
+test('default os: writing the preference, and what a failure says', async () => {
+  const x = fakeExecFile((file, args, n) => (n === 1 ? ok() : exited(1, '\n  Could not write domain com.prodcom.prodcom; exiting\nmore')));
+  const os = defaultOs({ execFile: x.execFile });
+  await os.writeApiPref();
+  assert.equal(x.lines()[0], `/usr/bin/defaults write ${BUNDLE} applicationAPIEnabled -bool true`);
+  await assert.rejects(os.writeApiPref(), /^Error: Could not turn on ProdCom's API \(exit 1: Could not write domain com\.prodcom\.prodcom; exiting\)$/);
+});
+
+test('default os: opening ProdCom is done in the background (-g), and a failed open reads as not installed', async () => {
+  const answers = [ok(), exited(1, 'Unable to find application'), timedOut()];
+  const x = fakeExecFile(() => answers.shift());
+  const os = defaultOs({ execFile: x.execFile });
+  await os.launch();
+  assert.equal(x.lines()[0], `/usr/bin/open -g -b ${BUNDLE}`);
+  assert.ok(x.calls[0].args.includes('-g'));
+  await assert.rejects(os.launch(), /^Error: ProdCom is not installed on this machine$/);
+  await assert.rejects(os.launch(), /^Error: Could not open ProdCom \(timed out\)$/);
+});
+
+test('default os: is ProdCom running — pgrep 0 / 1, anything else is an error', async () => {
+  const answers = [ok('123\n'), exited(1), exited(2, 'pgrep: bad'), timedOut()];
+  const x = fakeExecFile(() => answers.shift());
+  const os = defaultOs({ execFile: x.execFile });
+  assert.equal(await os.isRunning(), true);
+  assert.equal(await os.isRunning(), false);
+  await assert.rejects(os.isRunning(), /Could not check whether ProdCom is running \(exit 2: pgrep: bad\)/);
+  await assert.rejects(os.isRunning(), /Could not check whether ProdCom is running \(timed out\)/);
+  assert.equal(x.lines()[0], '/usr/bin/pgrep -x ProdCom');
+});
+
+test('default os: quit, the polite way — asked by Apple Event, then waited for', async () => {
+  let pgreps = 0;
+  const x = fakeExecFile((file) => {
+    if (file === '/usr/bin/osascript') return ok();
+    pgreps += 1;
+    return pgreps < 3 ? ok('123\n') : exited(1); // still there twice, then gone
+  });
+  const clock = fakeClock();
+  const os = defaultOs({ execFile: x.execFile, sleep: clock.sleep, now: clock.now });
+  await os.quit(new AbortController().signal);
+  assert.deepEqual(x.lines(), [
+    `/usr/bin/osascript -e tell application id "${BUNDLE}" to quit`,
+    '/usr/bin/pgrep -x ProdCom', '/usr/bin/pgrep -x ProdCom', '/usr/bin/pgrep -x ProdCom',
+  ]);
+  assert.equal(x.calls[0].opts.timeout, 5000, 'the Apple Event gets five seconds');
+  assert.deepEqual(clock.slept, [500, 500]);
+});
+
+test('default os: quit, when it will not be asked — SIGTERM, then waited for', async () => {
+  let pgreps = 0;
+  const x = fakeExecFile((file) => {
+    if (file === '/usr/bin/osascript') return exited(1, 'execution error: Not authorized to send Apple events (-1743)');
+    if (file === '/usr/bin/pkill') return ok();
+    pgreps += 1;
+    return pgreps < 2 ? ok('123\n') : exited(1);
+  });
+  const clock = fakeClock();
+  const os = defaultOs({ execFile: x.execFile, sleep: clock.sleep, now: clock.now });
+  await os.quit();
+  assert.deepEqual(x.lines().map((l) => l.split(' ').slice(0, 3).join(' ')), [
+    '/usr/bin/osascript -e tell',
+    '/usr/bin/pkill -x -TERM',
+    '/usr/bin/pgrep -x ProdCom',
+    '/usr/bin/pgrep -x ProdCom',
+  ]);
+  assert.deepEqual(x.calls[1].args, ['-x', '-TERM', 'ProdCom']);
+});
+
+test('default os: quit, and it will not go — "would not quit" after ten seconds', async () => {
+  const x = fakeExecFile((file) => (file === '/usr/bin/pgrep' ? ok('123\n') : ok()));
+  const clock = fakeClock();
+  const os = defaultOs({ execFile: x.execFile, sleep: clock.sleep, now: clock.now });
+  await assert.rejects(os.quit(), /^Error: ProdCom would not quit$/);
+  assert.equal(clock.now(), 10000);
+  assert.equal(x.calls.filter((c) => c.file === '/usr/bin/pkill').length, 0, 'the Apple Event worked, so no SIGTERM');
+});
+
+test('default os: quit, ended while the Apple Event is out: no SIGTERM, no look at the process list', async () => {
+  const ctl = new AbortController();
+  let finish;
+  const x = fakeExecFile((file) => {
+    if (file === '/usr/bin/osascript') return new Promise((resolve) => { finish = () => resolve(exited(1, 'denied')); });
+    return ok('123\n');
+  });
+  const os = defaultOs({ execFile: x.execFile, sleep: fakeClock().sleep });
+  const quitting = os.quit(ctl.signal);
+  await tick();
+  ctl.abort();
+  finish();
+  await assert.rejects(quitting, /^Error: cancelled$/);
+  assert.equal(x.calls.length, 1, 'only the osascript was ever run');
+});
+
+test('default os: quit, ended while SIGTERM is out: no look at the process list', async () => {
+  const ctl = new AbortController();
+  let finish;
+  const x = fakeExecFile((file) => {
+    if (file === '/usr/bin/osascript') return exited(1, 'denied');
+    if (file === '/usr/bin/pkill') return new Promise((resolve) => { finish = () => resolve(ok()); });
+    return ok('123\n');
+  });
+  const os = defaultOs({ execFile: x.execFile, sleep: fakeClock().sleep });
+  const quitting = os.quit(ctl.signal);
+  await tick();
+  ctl.abort();
+  finish();
+  await assert.rejects(quitting, /^Error: cancelled$/);
+  assert.deepEqual(x.calls.map((c) => c.file), ['/usr/bin/osascript', '/usr/bin/pkill']);
+});
+
+test('default os: quit, ended while it waits for the process to go: no further look', async () => {
+  const ctl = new AbortController();
+  const x = fakeExecFile((file) => (file === '/usr/bin/pgrep' ? ok('123\n') : ok()));
+  const os = defaultOs({
+    execFile: x.execFile,
+    sleep: () => { ctl.abort(); return Promise.resolve(false); }, // the run ends during the first wait
+  });
+  await assert.rejects(os.quit(ctl.signal), /^Error: cancelled$/);
+  assert.equal(x.calls.filter((c) => c.file === '/usr/bin/pgrep').length, 1);
+});
+
+test('default os: quit, already ended before it starts: it does nothing at all', async () => {
+  const ctl = new AbortController();
+  ctl.abort();
+  const x = fakeExecFile(() => ok());
+  const os = defaultOs({ execFile: x.execFile });
+  await assert.rejects(os.quit(ctl.signal), /^Error: cancelled$/);
+  assert.equal(x.calls.length, 0);
+});
+
+/* ── the pieces that need no machine ────────────────────────────────── */
+
+test('isLocalHostName: this machine by every name it has, and no other', () => {
+  const addrs = ['127.0.0.1', '::1', 'fe80::1', '10.3.11.152', 'fe80::aede:48ff:fe00:1122'];
+  const here = 'AB-ProPresenter.local';
+  for (const host of ['', 'localhost', 'LocalHost', '127.0.0.1', '::1', '[::1]', '0.0.0.0',
+    '10.3.11.152', 'FE80::1', 'fe80:0:0:0:0:0:0:1', 'fe80::1%lo0',
+    'ab-propresenter.local', 'AB-PROPRESENTER', 'ab-propresenter', 'ab-propresenter.local.']) {
+    assert.equal(isLocalHostName(host, here, addrs), true, `"${host}" is this machine`);
+  }
+  for (const host of ['10.1.1.50', 'prodcom.local', 'na-ingest', 'example.com', '10.3.11.153']) {
+    assert.equal(isLocalHostName(host, here, addrs), false, `"${host}" is not`);
+  }
+  // A hostname without .local matches the same machine reached as .local.
+  assert.equal(isLocalHostName('studio.local', 'Studio', []), true);
+});
+
+test('parseApiPref: defaults prints a bool as 1 or 0', () => {
+  assert.equal(parseApiPref('1\n'), true);
+  assert.equal(parseApiPref('0\n'), false);
+  assert.equal(parseApiPref(' true '), true);
+  assert.equal(parseApiPref(''), null);
+  assert.equal(parseApiPref('banana'), null);
+});
+
+test('the default sleep is cut short by its signal and leaves no timer behind', async () => {
+  const ctl = new AbortController();
+  const slept = abortableSleep(60 * 60 * 1000, ctl.signal); // an hour — would hold the test open if it were left running
+  ctl.abort();
+  assert.equal(await slept, false);
+  assert.equal(await abortableSleep(60 * 60 * 1000, ctl.signal), false, 'already aborted: returns at once');
+});

modules/propresenter-looks/README.md

@@ -0,0 +1,55 @@
+# ProPresenter Look — a ProdDash module
+
+Shows the audience **look** live in ProPresenter right now, as big as the
+tile allows, so anyone away from the ProPresenter machine can tell at a glance
+which look the outputs are on.
+
+- The look's name fills the tile and **flashes** when it changes.
+- **Modified** appears when someone changed the look by hand and it no longer
+  matches any saved look.
+- **since 10:42 AM** says when the look last changed.
+- If ProPresenter stops answering, the status dot goes red and the tile keeps
+  the **last known** look on screen, dimmed, until it comes back by itself.
+
+## Install
+
+This folder is a standard ProdDash module (id `propresenter-looks`). Per the
+ProdDash module guide, it installs one of two ways:
+
+1. **From the admin page's catalog**, once the folder is in the ProdDash repo
+   at `modules/propresenter-looks/`: `/admin` → Available modules →
+   *ProPresenter Look* → Install.
+2. **Drop it in**: copy this folder to the ProdDash data directory's
+   `modules/propresenter-looks/` and restart ProdDash.
+   - macOS: `~/Library/Application Support/ProdDash/modules/`
+   - Windows: `%APPDATA%\ProdDash\modules\`
+
+Then add a tile from **＋ Add tile → ProPresenter Look**.
+
+## Configure (in `/admin`)
+
+| Setting | What to enter |
+| --- | --- |
+| ProPresenter | Host / IP and port from ProPresenter's Settings › Network (Network enabled). |
+| Password | Only if ProPresenter's network API asks for one. |
+
+Each tile's gear has three switches: **Heading**, **Live status**, **Since**.
+
+## How it works
+
+The server entry polls ProPresenter's network API once a second
+(`GET /v1/look/current`, plus `GET /v1/looks` every ten seconds to name the
+saved look it matches) and streams the result to tiles over SSE. Browsers
+never talk to ProPresenter. No dependencies. Needs ProdDash 1.5.0 or later and
+ProPresenter 7.9+ (or 20+).
+
+## Testing without ProPresenter
+
+```bash
+node tools/pp-looks-mock.js 1601
+```
+
+Point the module at host `127.0.0.1`, port `1601`. The live look changes every
+8 seconds (`--every 3` for faster) and every fourth change is a hand-modified
+look. `--password <pw>` demands a password; `--no-list` acts like a
+ProPresenter without `GET /v1/looks`.

modules/propresenter-looks/client.js

@@ -0,0 +1,192 @@
+/* ProPresenter Look — client part.
+
+   The server part polls ProPresenter and streams the live audience look
+   here over SSE; the tile only renders. The look's name fills the tile so
+   it reads from across the booth, flashes once when it changes, and stays
+   on screen dimmed — marked "last known" — while ProPresenter is
+   unreachable. */
+
+export default function create({ root, moduleApi }) {
+  let view = null;
+  let feedOffline = false;
+  let stream = null;
+  let resizeObserver = null;
+  let flashTimer = null;
+  let lastName = null;
+
+  root.innerHTML = `
+    <div class="pl-screen">
+      <header class="pl-top">
+        <div class="pl-heading">Look</div>
+        <div class="pl-live"><span class="pl-live-dot"></span><span class="pl-live-text">Connecting…</span></div>
+      </header>
+      <div class="pl-name-box"><div class="pl-name is-waiting">Connecting…</div></div>
+      <footer class="pl-meta">
+        <span class="pl-tag" hidden>Modified</span>
+        <span class="pl-since" hidden></span>
+      </footer>
+    </div>`;
+
+  const screenEl = root.querySelector('.pl-screen');
+  const topEl = root.querySelector('.pl-top');
+  const headingEl = root.querySelector('.pl-heading');
+  const liveEl = root.querySelector('.pl-live');
+  const liveTextEl = root.querySelector('.pl-live-text');
+  const nameBox = root.querySelector('.pl-name-box');
+  const nameEl = root.querySelector('.pl-name');
+  const metaEl = root.querySelector('.pl-meta');
+  const tagEl = root.querySelector('.pl-tag');
+  const sinceEl = root.querySelector('.pl-since');
+
+  const on = (key) => moduleApi.instanceSettings[key] !== false;
+
+  function timeText(ms) {
+    return new Date(ms).toLocaleTimeString([], { hour: 'numeric', minute: '2-digit' });
+  }
+
+  /** Biggest font size at which the name fits its box without breaking a word. */
+  function fitName() {
+    const MIN = 11;
+    const boxHeight = nameBox.clientHeight;
+    const boxWidth = nameBox.clientWidth;
+    nameEl.style.overflowWrap = 'normal';
+    if (boxHeight < MIN || !boxWidth) {
+      nameEl.style.fontSize = `${MIN}px`;
+      return;
+    }
+    const fits = (size) => {
+      nameEl.style.fontSize = `${size}px`;
+      return nameEl.scrollWidth <= nameBox.clientWidth + 1 && nameEl.scrollHeight <= nameBox.clientHeight + 1;
+    };
+    let lo = MIN;
+    let hi = Math.max(MIN, Math.floor(boxHeight));
+    let best = MIN;
+    while (lo <= hi) {
+      const mid = (lo + hi) >> 1;
+      if (fits(mid)) { best = mid; lo = mid + 1; } else { hi = mid - 1; }
+    }
+    nameEl.style.fontSize = `${best}px`;
+    // One word too long even at MIN: let it break rather than overflow.
+    if (best === MIN && nameEl.scrollWidth > nameBox.clientWidth + 1) nameEl.style.overflowWrap = 'anywhere';
+  }
+
+  function flash() {
+    screenEl.classList.remove('is-changed');
+    void screenEl.offsetWidth; // restart the animation
+    screenEl.classList.add('is-changed');
+    clearTimeout(flashTimer);
+    flashTimer = setTimeout(() => screenEl.classList.remove('is-changed'), 2600);
+  }
+
+  function setStatus() {
+    if (feedOffline) {
+      moduleApi.setStatus('error', 'ProdDash server unreachable — reconnecting…');
+    } else if (!view) {
+      moduleApi.setStatus('connecting', 'Connecting…');
+    } else if (!view.configured) {
+      moduleApi.setStatus('error', 'No ProPresenter host configured — set one in Admin');
+    } else if (view.reachable) {
+      moduleApi.setStatus('ok', `Live look: ${view.look ? view.look.name : '—'}`);
+    } else if (!view.updatedAt && !view.lastError) {
+      moduleApi.setStatus('connecting', 'Reaching ProPresenter…');
+    } else {
+      moduleApi.setStatus('error', `ProPresenter unreachable${view.lastError ? ` (${view.lastError})` : ''} — reconnecting…`);
+    }
+  }
+
+  function render() {
+    setStatus();
+    const offline = feedOffline || Boolean(view && view.configured && !view.reachable && (view.updatedAt || view.lastError));
+    const look = view && view.look;
+
+    screenEl.classList.toggle('is-offline', offline);
+    headingEl.hidden = !on('showHeading');
+    liveEl.hidden = !on('showLive') && !offline; // losing the feed always shows
+    topEl.hidden = headingEl.hidden && liveEl.hidden;
+
+    liveEl.classList.toggle('is-live', !offline && Boolean(view && view.reachable));
+    liveEl.classList.toggle('is-down', offline);
+    if (feedOffline) liveTextEl.textContent = 'ProdDash offline';
+    else if (offline) liveTextEl.textContent = look ? 'Unreachable · last known' : 'Unreachable';
+    else if (view && view.reachable) liveTextEl.textContent = 'Live';
+    else liveTextEl.textContent = 'Connecting…';
+
+    let name;
+    let waiting = false;
+    if (look) {
+      name = look.name;
+    } else if (view && !view.configured) {
+      name = 'Set up in Admin';
+      waiting = true;
+    } else if (offline) {
+      name = 'ProPresenter unreachable';
+      waiting = true;
+    } else {
+      name = 'Connecting…';
+      waiting = true;
+    }
+    nameEl.textContent = name;
+    nameEl.classList.toggle('is-waiting', waiting);
+
+    if (look && lastName !== null && lastName !== `${look.name}|${look.modified}`) flash();
+    if (look) lastName = `${look.name}|${look.modified}`;
+
+    tagEl.hidden = !(look && look.modified);
+    const since = look && view.changedAt && on('showSince');
+    sinceEl.hidden = !since;
+    if (since) sinceEl.textContent = `since ${timeText(view.changedAt)}`;
+    metaEl.hidden = tagEl.hidden && sinceEl.hidden;
+
+    fitName();
+  }
+
+  function connect() {
+    stream = moduleApi.sse('/stream', {
+      open() {
+        feedOffline = false;
+        render();
+      },
+      error() {
+        feedOffline = true;
+        render();
+      },
+      events: {
+        state(e) {
+          try {
+            view = JSON.parse(e.data);
+          } catch {
+            return;
+          }
+          feedOffline = false;
+          render();
+        },
+      },
+    });
+  }
+
+  return {
+    start() {
+      render();
+      moduleApi.fetch('/state')
+        .then((r) => (r.ok ? r.json() : null))
+        .then((body) => {
+          if (body && body.state && !view) {
+            view = body.state;
+            render();
+          }
+        })
+        .catch(() => {});
+      connect();
+      resizeObserver = new ResizeObserver(() => fitName());
+      resizeObserver.observe(nameBox);
+    },
+    stop() {
+      if (stream) stream.close();
+      stream = null;
+      if (resizeObserver) resizeObserver.disconnect();
+      resizeObserver = null;
+      clearTimeout(flashTimer);
+      root.innerHTML = '';
+    },
+  };
+}

modules/propresenter-looks/module.json

@@ -0,0 +1,58 @@
+{
+  "id": "propresenter-looks",
+  "name": "ProPresenter Look",
+  "version": "1.0.0",
+  "proddash": ">=1.5.0",
+  "description": "The audience look live in ProPresenter right now",
+  "permissions": [
+    {
+      "kind": "local-network",
+      "reason": "Reaching ProPresenter on this network"
+    }
+  ],
+  "client": "client.js",
+  "server": "server.js",
+  "style": "style.css",
+  "minSize": {
+    "w": 2,
+    "h": 1
+  },
+  "defaultSize": {
+    "w": 4,
+    "h": 2
+  },
+  "configSchema": {
+    "propresenter": {
+      "type": "endpoint",
+      "label": "ProPresenter",
+      "default": {
+        "host": "",
+        "port": 1025
+      },
+      "help": "The host and port shown in ProPresenter's Settings › Network, with Network enabled."
+    },
+    "password": {
+      "type": "password",
+      "label": "Password",
+      "default": "",
+      "help": "Only if ProPresenter's network API asks for one. Leave empty otherwise."
+    }
+  },
+  "instanceSchema": {
+    "showHeading": {
+      "type": "switch",
+      "label": "Heading",
+      "default": true
+    },
+    "showLive": {
+      "type": "switch",
+      "label": "Live status",
+      "default": true
+    },
+    "showSince": {
+      "type": "switch",
+      "label": "Since",
+      "default": true
+    }
+  }
+}

modules/propresenter-looks/server.js

@@ -0,0 +1,242 @@
+'use strict';
+
+/**
+ * ProPresenter Look — server part.
+ *
+ * Polls ProPresenter's network API for the live audience look and fans it
+ * out to every tile over SSE. Browsers never talk to ProPresenter directly.
+ *
+ *   GET /state   → { state: <view> }   (instant paint for new tiles)
+ *   GET /stream  → SSE, `state` events (change-detected, heartbeated)
+ *
+ * ProPresenter's routes (ProPresenter 7.9+ / 20+):
+ *   GET /v1/look/current → { id: { uuid, name, index }, screens: [...] }
+ *   GET /v1/looks        → [ { id: { uuid, name, index }, screens: [...] }, … ]
+ * The current look carries a UUID of its own, never one from /v1/looks. Its
+ * `index` points at the saved look it matches, or equals the number of saved
+ * looks when someone has changed it by hand and it matches none.
+ */
+
+const POLL_MS = 1000; // the look matters the moment it changes
+const RETRY_MS = 3000; // while ProPresenter is unreachable
+const LOOKS_EVERY = 10; // re-read the saved looks every N polls
+const REQUEST_TIMEOUT_MS = 2500;
+
+/** SSE comment ping cadence — keeps idle connections alive through sleepy Wi-Fi. */
+const HEARTBEAT_MS = 15000;
+
+/** Set by init(), read by the routes — both are rebuilt together on remount. */
+let current = null;
+
+function emptyView(configured = false) {
+  return {
+    configured,
+    reachable: false,
+    lastError: '',
+    look: null, // { name, modified, screens }
+    changedAt: 0, // ms epoch the look last changed while we watched; 0 = unknown
+    updatedAt: 0, // ms epoch of the last good answer
+  };
+}
+
+function errorText(err) {
+  return String(err?.cause?.code || err?.code || err?.message || err || 'failed');
+}
+
+/** One look's name, trimmed — ProPresenter leaves the current look's name blank on some versions. */
+function lookName(entry) {
+  return String(entry?.id?.name ?? entry?.name ?? '').trim();
+}
+
+module.exports = {
+  init({ config, log }) {
+    const streams = new Set();
+    const ep = config.propresenter && typeof config.propresenter === 'object' ? config.propresenter : {};
+    const host = String(ep.host || '').trim();
+    const port = Number(ep.port) || 1025;
+    const password = String(config.password || '');
+    const configured = Boolean(host && port);
+
+    let view = emptyView(configured);
+    let lastFrame = '';
+    let saved = []; // names of the saved looks, in ProPresenter's order
+    let savedOk = false;
+    let tick = 0;
+    let stopped = false;
+    let pollTimer = null;
+
+    function url(target) {
+      const built = new URL(`http://${host}:${port}${target}`);
+      if (password) built.searchParams.set('password', password);
+      return built;
+    }
+
+    async function requestJson(target) {
+      const response = await fetch(url(target), {
+        headers: { Accept: 'application/json' },
+        signal: AbortSignal.timeout(REQUEST_TIMEOUT_MS),
+      });
+      if (!response.ok) {
+        const err = new Error(`ProPresenter ${response.status} ${response.statusText}`);
+        err.status = response.status;
+        throw err;
+      }
+      const text = await response.text();
+      return text ? JSON.parse(text) : null;
+    }
+
+    function broadcast() {
+      let frame;
+      try {
+        frame = JSON.stringify(view);
+      } catch {
+        return;
+      }
+      // Polls land every second whether anything changed or not; only real
+      // changes go out, so idle tiles stay idle.
+      if (frame === lastFrame) return;
+      lastFrame = frame;
+      const payload = `event: state\ndata: ${frame}\n\n`;
+      for (const res of streams) {
+        try {
+          res.write(payload);
+        } catch {
+          streams.delete(res);
+        }
+      }
+    }
+
+    async function refreshSaved() {
+      try {
+        const list = await requestJson('/v1/looks');
+        saved = Array.isArray(list) ? list.map(lookName) : [];
+        savedOk = true;
+      } catch (err) {
+        // An older ProPresenter without the list still answers look/current;
+        // the live look's own name is shown then.
+        if (err.status !== 404) throw err;
+        saved = [];
+        savedOk = false;
+      }
+    }
+
+    function resolveLook(live) {
+      const index = Number(live?.id?.index);
+      const own = lookName(live);
+      const screens = Array.isArray(live?.screens) ? live.screens.length : 0;
+      if (savedOk && Number.isInteger(index) && index >= 0 && index < saved.length) {
+        return { name: saved[index] || own || `Look ${index + 1}`, modified: false, screens };
+      }
+      // Changed by hand, matching no saved look.
+      const modified = savedOk && Number.isInteger(index) && index >= saved.length;
+      return { name: own || (modified ? 'Custom look' : 'Unnamed look'), modified, screens };
+    }
+
+    async function pollTick() {
+      if (stopped) return;
+      const next = { ...view };
+      try {
+        tick += 1;
+        if (tick % LOOKS_EVERY === 1 || !savedOk) await refreshSaved();
+        const live = await requestJson('/v1/look/current');
+        let look = resolveLook(live);
+        // A look saved since our last read: refresh the list now rather than
+        // calling it "Custom" for up to ten seconds.
+        if (look.modified && !view.look?.modified && tick % LOOKS_EVERY !== 1) {
+          await refreshSaved();
+          look = resolveLook(live);
+        }
+        const before = view.look;
+        if (before && (before.name !== look.name || before.modified !== look.modified)) {
+          next.changedAt = Date.now();
+          log(`look → ${look.name}${look.modified ? ' (modified)' : ''}`);
+        } else if (!before) {
+          log(`look is ${look.name}${look.modified ? ' (modified)' : ''}`);
+        }
+        next.look = look;
+        next.reachable = true;
+        next.lastError = '';
+        next.updatedAt = Date.now();
+      } catch (err) {
+        if (view.reachable) log(`ProPresenter unreachable: ${errorText(err)}`);
+        next.reachable = false;
+        next.lastError = errorText(err); // "ECONNREFUSED" beats fetch's "fetch failed"
+        tick = 0; // re-read the saved looks first when it comes back
+      }
+      if (stopped) return;
+      view = next;
+      broadcast();
+      pollTimer = setTimeout(pollTick, view.reachable ? POLL_MS : RETRY_MS);
+    }
+
+    if (configured) {
+      log(`following the live look on ${host}:${port}`);
+      pollTick();
+    } else {
+      log('no ProPresenter host configured — set one in /admin');
+    }
+
+    const heartbeat = setInterval(() => {
+      for (const res of streams) {
+        try {
+          res.write(': ping\n\n');
+        } catch {
+          streams.delete(res);
+        }
+      }
+    }, HEARTBEAT_MS);
+    heartbeat.unref?.();
+
+    current = { streams, getView: () => view };
+
+    return {
+      stop() {
+        stopped = true;
+        clearTimeout(pollTimer);
+        clearInterval(heartbeat);
+        for (const res of streams) {
+          try { res.end(); } catch { /* already gone */ }
+        }
+        streams.clear();
+        if (current && current.streams === streams) current = null;
+      },
+      health() {
+        if (!configured) return { status: 'error', message: 'No ProPresenter host configured' };
+        if (view.reachable) {
+          return { status: 'ok', message: `Live look on ${host}:${port}: ${view.look ? view.look.name : '—'}` };
+        }
+        return {
+          status: view.updatedAt || view.lastError ? 'error' : 'connecting',
+          message: view.lastError ? `ProPresenter unreachable: ${view.lastError}` : `Reaching ${host}:${port}…`,
+        };
+      },
+    };
+  },
+
+  routes() {
+    return {
+      'GET /state': (req, res) => {
+        res.writeHead(200, { 'Content-Type': 'application/json; charset=utf-8', 'Cache-Control': 'no-store' });
+        res.end(JSON.stringify({ state: current ? current.getView() : emptyView() }));
+      },
+
+      'GET /stream': (req, res) => {
+        res.writeHead(200, {
+          'Content-Type': 'text/event-stream; charset=utf-8',
+          'Cache-Control': 'no-cache, no-transform',
+          Connection: 'keep-alive',
+          'X-Accel-Buffering': 'no',
+        });
+        res.write('retry: 3000\n\n');
+        res.write(`event: state\ndata: ${JSON.stringify(current ? current.getView() : emptyView())}\n\n`);
+        if (!current) return void res.end();
+        const { streams } = current;
+        // A viewer that stops reading (locked tablet, sleeping laptop) must
+        // not queue frames forever; keepalive probes make the OS notice.
+        try { req.socket.setKeepAlive(true, 15000); } catch { /* gone */ }
+        streams.add(res);
+        req.on('close', () => streams.delete(res));
+      },
+    };
+  },
+};

modules/propresenter-looks/style.css

@@ -0,0 +1,141 @@
+/* ProPresenter Look — the live look's name, as big as the tile allows.
+   Colors come from the shell's variables only. */
+
+[data-module="propresenter-looks"] .pl-screen {
+  position: absolute;
+  inset: 0;
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  padding: 10px 12px;
+  user-select: none;
+  -webkit-user-select: none;
+  background: linear-gradient(
+    160deg,
+    color-mix(in srgb, var(--accent) 12%, transparent),
+    color-mix(in srgb, var(--bg) 60%, transparent)
+  );
+}
+
+/* ── top row: heading and live status ── */
+
+[data-module="propresenter-looks"] .pl-top {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 8px;
+  flex-shrink: 0;
+  min-height: 0;
+}
+[data-module="propresenter-looks"] .pl-top[hidden],
+[data-module="propresenter-looks"] .pl-heading[hidden],
+[data-module="propresenter-looks"] .pl-live[hidden],
+[data-module="propresenter-looks"] .pl-meta[hidden],
+[data-module="propresenter-looks"] .pl-tag[hidden],
+[data-module="propresenter-looks"] .pl-since[hidden] {
+  display: none;
+}
+
+[data-module="propresenter-looks"] .pl-heading {
+  font-size: 11px;
+  font-weight: 700;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+  color: var(--muted);
+}
+
+[data-module="propresenter-looks"] .pl-live {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  margin-left: auto;
+  font-size: 10px;
+  font-weight: 600;
+  letter-spacing: 0.06em;
+  text-transform: uppercase;
+  color: var(--muted);
+}
+[data-module="propresenter-looks"] .pl-live-dot {
+  width: 7px;
+  height: 7px;
+  border-radius: 999px;
+  background: var(--border);
+  transition: background 0.3s ease;
+}
+[data-module="propresenter-looks"] .pl-live.is-live .pl-live-dot {
+  background: var(--accent);
+  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 18%, transparent);
+}
+[data-module="propresenter-looks"] .pl-live.is-down .pl-live-dot {
+  background: var(--danger);
+  box-shadow: 0 0 0 2px color-mix(in srgb, var(--danger) 16%, transparent);
+}
+[data-module="propresenter-looks"] .pl-live.is-down .pl-live-text {
+  color: var(--danger);
+}
+
+/* ── the look's name ── */
+
+[data-module="propresenter-looks"] .pl-name-box {
+  flex: 1;
+  min-height: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  overflow: hidden;
+}
+[data-module="propresenter-looks"] .pl-name {
+  max-width: 100%;
+  font-size: 11px;
+  font-weight: 800;
+  line-height: 1.05;
+  text-align: center;
+  white-space: normal;
+  word-break: normal;
+  hyphens: none;
+  color: var(--text);
+}
+[data-module="propresenter-looks"] .pl-name.is-waiting {
+  font-weight: 600;
+  color: var(--muted);
+}
+
+/* Unreachable: the last known look stays, visibly stale. */
+[data-module="propresenter-looks"] .pl-screen.is-offline {
+  background: color-mix(in srgb, var(--danger) 8%, transparent);
+}
+[data-module="propresenter-looks"] .pl-screen.is-offline .pl-name:not(.is-waiting) {
+  opacity: 0.45;
+}
+
+/* ── footer: modified tag and when it changed ── */
+
+[data-module="propresenter-looks"] .pl-meta {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 8px;
+  flex-shrink: 0;
+  font-size: 11px;
+  color: var(--muted);
+  font-variant-numeric: tabular-nums;
+}
+[data-module="propresenter-looks"] .pl-tag {
+  padding: 1px 7px;
+  border-radius: 999px;
+  font-weight: 700;
+  letter-spacing: 0.06em;
+  text-transform: uppercase;
+  font-size: 10px;
+  color: var(--warn);
+  background: color-mix(in srgb, var(--warn) 16%, transparent);
+}
+
+/* A new look: one bright pulse so a glance catches the change. */
+[data-module="propresenter-looks"] .pl-screen.is-changed {
+  animation: pl-changed 2.6s ease-out;
+}
+@keyframes pl-changed {
+  0%, 20% { box-shadow: inset 0 0 0 3px var(--accent); background-color: color-mix(in srgb, var(--accent) 22%, transparent); }
+  100% { box-shadow: inset 0 0 0 3px transparent; background-color: transparent; }
+}

modules/propresenter-looks/tools/pp-looks-mock.js

@@ -0,0 +1,69 @@
+#!/usr/bin/env node
+'use strict';
+
+/**
+ * Mock ProPresenter looks API, for developing the ProPresenter Look module
+ * without the real thing.
+ *
+ *   node tools/pp-looks-mock.js [port]        (default 1601)
+ *     --every <seconds>   how often the live look changes (default 8)
+ *     --password <pw>     demand ?password=<pw> like a locked ProPresenter
+ *     --no-list           answer 404 for /v1/looks (an older ProPresenter)
+ *
+ * Point the module at host 127.0.0.1 and this port. Every few changes the
+ * live look is "modified by hand", so it matches no saved look.
+ */
+
+const http = require('http');
+const crypto = require('crypto');
+
+const args = process.argv.slice(2);
+const flag = (name) => {
+  const i = args.indexOf(name);
+  return i >= 0 ? args[i + 1] : undefined;
+};
+const port = Number(args.find((a) => /^\d+$/.test(a))) || 1601;
+const every = Number(flag('--every')) || 8;
+const password = flag('--password') || '';
+const noList = args.includes('--no-list');
+
+const screen = (on) => ({ video_input: false, media: on, slide: on, announcements: on, props: on, messages: on, presentation: null, mask: null });
+const saved = ['Normal', 'Lyrics Only', 'Sermon', 'Countdown', 'Video Only'].map((name, index) => ({
+  id: { uuid: crypto.randomUUID(), name, index },
+  screens: [screen(true), screen(index !== 4)],
+}));
+
+let live = 0;
+let modified = false;
+let changes = 0;
+const liveUuid = crypto.randomUUID();
+
+setInterval(() => {
+  changes += 1;
+  modified = changes % 4 === 0;
+  if (!modified) live = (live + 1) % saved.length;
+  console.log(`live look → ${saved[live].id.name}${modified ? ' (modified)' : ''}`);
+}, every * 1000);
+
+function currentLook() {
+  return {
+    id: { uuid: liveUuid, name: saved[live].id.name, index: modified ? saved.length : live },
+    screens: saved[live].screens,
+  };
+}
+
+http.createServer((req, res) => {
+  const url = new URL(req.url, 'http://x');
+  const send = (code, body) => {
+    res.writeHead(code, { 'Content-Type': 'application/json' });
+    res.end(body === undefined ? '' : JSON.stringify(body));
+  };
+  if (password && url.searchParams.get('password') !== password) return send(401, { error: 'password' });
+  if (url.pathname === '/version') return send(200, { name: 'Mock', platform: 'mac', os_version: '15', host_description: 'ProPresenter 21.0 (mock)' });
+  if (url.pathname === '/v1/looks') return noList ? send(404) : send(200, saved);
+  if (url.pathname === '/v1/look/current') return send(200, currentLook());
+  send(404);
+}).listen(port, () => {
+  console.log(`mock ProPresenter looks on http://127.0.0.1:${port} — live look changes every ${every}s`);
+  console.log(`live look → ${saved[live].id.name}`);
+});

modules/propresenter-now-next/client.js

@@ -212,7 +212,8 @@ export default function create({ root, moduleApi }) {
   }
 
   function renderLive() {
-    liveEl.classList.remove('is-live', 'is-down');
+    liveEl.classList.remove('is-live', 'is-down', 'is-look', 'is-modified');
+    liveEl.removeAttribute('title');
     if (feedOffline) {
       liveEl.classList.add('is-down');
       liveTextEl.textContent = 'Feed offline';
@@ -231,6 +232,18 @@ export default function create({ root, moduleApi }) {
     }
     if (state.reachable) {
       liveEl.classList.add('is-live');
+      const lookName = state.look && state.look.name;
+      if (lookName) {
+        // The audience look replaces "Live". textContent, never innerHTML:
+        // the name is whatever someone typed into ProPresenter.
+        const modified = Boolean(state.look.modified);
+        liveEl.classList.add('is-look');
+        liveEl.classList.toggle('is-modified', modified);
+        liveEl.title = modified ? 'Audience look (modified)' : 'Audience look';
+        liveTextEl.textContent = lookName;
+        moduleApi.setStatus('ok', `Live · ${lookName}`);
+        return;
+      }
       liveTextEl.textContent = 'Live';
       moduleApi.setStatus('ok', 'Following ProPresenter');
       return;

modules/propresenter-now-next/module.json

@@ -1,7 +1,7 @@
 {
   "id": "propresenter-now-next",
   "name": "ProPresenter",
-  "version": "1.1.1",
+  "version": "1.2.0",
   "proddash": ">=1.5.0",
   "description": "What is live in ProPresenter and what comes next",
   "permissions": [
@@ -50,7 +50,7 @@
     },
     "showLive": {
       "type": "switch",
-      "label": "Live status",
+      "label": "Audience look",
       "default": true,
       "group": "Show"
     },

modules/propresenter-now-next/server.js

@@ -10,6 +10,12 @@
  *
  *   GET /state   → { state: <view-model> }   (instant paint for new tiles)
  *   GET /stream  → SSE, `state` events       (change-detected, heartbeated)
+ *
+ * The view-model carries `look`: the live audience look as
+ * { name, modified }, or null while it is unknown. A small poller of this
+ * file's own reads it (GET /v1/look/current, with /v1/looks to name it) from
+ * the same ProPresenter the core follows. Its failures only null `look`; they
+ * never touch the core's reachable / lastError.
  */
 
 const { createProPresenterClient, clearedViewModel } = require('./propresenter-core');
@@ -17,6 +23,17 @@ const { createProPresenterClient, clearedViewModel } = require('./propresenter-c
 /** SSE comment ping cadence — keeps idle connections alive through sleepy Wi-Fi. */
 const HEARTBEAT_MS = 15000;
 
+const LOOK_POLL_MS = 1000; // the look matters the moment it changes
+const LOOK_RETRY_MS = 3000; // while the look cannot be read
+const LOOKS_EVERY = 10; // re-read the saved looks every N polls
+const LOOK_TIMEOUT_MS = 2500;
+const LOOK_FAILS_BEFORE_NULL = 3; // consecutive failed reads before the look is called unknown
+
+/** One look's name, trimmed — ProPresenter leaves the current look's name blank on some versions. */
+function lookName(entry) {
+  return String(entry?.id?.name ?? entry?.name ?? '').trim();
+}
+
 /** Set by init(), read by the routes — both are rebuilt together on remount. */
 let current = null;
 
@@ -31,30 +48,38 @@ module.exports = {
     const port = Number(config.port ?? ep.port) || 1025;
     const enabled = Boolean(host && port);
     let latest = clearedViewModel();
+    let look = null; // { name, modified } or null while unknown
     let lastFrame = '';
 
+    /** The core's view-model plus the live look — what every tile and GET /state sees. */
+    const snapshot = () => ({ ...latest, look });
+
+    function broadcast() {
+      if (!streams.size) return;
+      let frame;
+      try {
+        frame = JSON.stringify(snapshot());
+      } catch {
+        return;
+      }
+      // The poll loop emits every tick whether anything changed or not.
+      // Broadcasting only real changes keeps idle tiles genuinely idle.
+      if (frame === lastFrame) return;
+      lastFrame = frame;
+      const payload = `event: state\ndata: ${frame}\n\n`;
+      for (const res of streams) {
+        try {
+          res.write(payload);
+        } catch {
+          streams.delete(res);
+        }
+      }
+    }
+
     const client = createProPresenterClient({
       onData(view) {
         latest = view;
-        if (!streams.size) return;
-        let frame;
-        try {
-          frame = JSON.stringify(view);
-        } catch {
-          return;
-        }
-        // The poll loop emits every tick whether anything changed or not.
-        // Broadcasting only real changes keeps idle tiles genuinely idle.
-        if (frame === lastFrame) return;
-        lastFrame = frame;
-        const payload = `event: state\ndata: ${frame}\n\n`;
-        for (const res of streams) {
-          try {
-            res.write(payload);
-          } catch {
-            streams.delete(res);
-          }
-        }
+        broadcast();
       },
     });
 
@@ -65,8 +90,122 @@ module.exports = {
       password: String(config.password || ''),
     });
 
+    /* ── audience look ──────────────────────────────────────────────
+       Same reads and rules as the ProPresenter Look module. ProPresenter
+       sometimes leaves the live look's name blank, so the saved list is
+       consulted: the look's `index` points at the saved look it matches, or
+       is past the end when someone has changed it by hand. */
+
+    const password = String(config.password || '');
+    let saved = []; // names of the saved looks, in ProPresenter's order
+    let savedOk = false; // the list exists and is in `saved`
+    let savedTried = false; // /v1/looks has answered (a 404 counts: do not ask again every poll)
+    let lookTick = 0;
+    let lookFails = 0; // consecutive failed reads of the look
+    let lookStopped = false;
+    let lookTimer = null;
+
+    function lookUrl(target) {
+      const built = new URL(`http://${host}:${port}${target}`);
+      if (password) built.searchParams.set('password', password);
+      return built;
+    }
+
+    async function lookJson(target) {
+      const response = await fetch(lookUrl(target), {
+        headers: { Accept: 'application/json' },
+        signal: AbortSignal.timeout(LOOK_TIMEOUT_MS),
+      });
+      if (!response.ok) {
+        const err = new Error(`ProPresenter ${response.status} ${response.statusText}`);
+        err.status = response.status;
+        throw err;
+      }
+      const text = await response.text();
+      return text ? JSON.parse(text) : null;
+    }
+
+    async function refreshSaved() {
+      try {
+        const list = await lookJson('/v1/looks');
+        // A real empty array is a valid (empty) list. Anything else that
+        // answered 200 is not a list, so it names nothing — an empty list
+        // would call every look modified.
+        saved = Array.isArray(list) ? list.map(lookName) : [];
+        savedOk = Array.isArray(list);
+        savedTried = true;
+      } catch (err) {
+        // An older ProPresenter without the list still answers look/current;
+        // the live look's own name is shown then. Remembered, so the list is
+        // asked for again only on the normal cadence, not on every poll.
+        if (err.status !== 404) throw err;
+        saved = [];
+        savedOk = false;
+        savedTried = true;
+      }
+    }
+
+    /** { name, modified }, or null when there is no name to show (the pill then says "Live"). */
+    function resolveLook(live) {
+      const index = Number(live?.id?.index);
+      const own = lookName(live);
+      if (savedOk && Number.isInteger(index) && index >= 0 && index < saved.length) {
+        return { name: saved[index] || own || `Look ${index + 1}`, modified: false };
+      }
+      // Changed by hand, matching no saved look.
+      if (savedOk && Number.isInteger(index) && index >= saved.length) {
+        return { name: own || 'Custom look', modified: true };
+      }
+      // No saved list to name it from: the live look's own name, or nothing.
+      return own ? { name: own, modified: false } : null;
+    }
+
+    function setLook(next) {
+      if (JSON.stringify(next) === JSON.stringify(look)) return;
+      look = next;
+      broadcast();
+    }
+
+    async function pollLook() {
+      if (lookStopped) return;
+      let next = null;
+      let readOk = false;
+      try {
+        lookTick += 1;
+        if (lookTick % LOOKS_EVERY === 1 || !savedTried) await refreshSaved();
+        const live = await lookJson('/v1/look/current');
+        if (!live || typeof live !== 'object') throw new Error('no look in the answer');
+        next = resolveLook(live);
+        // A look saved since our last read: refresh the list now rather than
+        // calling it "Custom" for up to ten seconds.
+        if (next?.modified && !look?.modified && lookTick % LOOKS_EVERY !== 1) {
+          await refreshSaved();
+          next = resolveLook(live);
+        }
+        readOk = true;
+      } catch {
+        // A list that exists may have changed while ProPresenter was away:
+        // re-read it first when it comes back. One that is known not to exist
+        // (404) is not asked for again on every failed retry.
+        if (savedOk) lookTick = 0;
+      }
+      if (lookStopped) return;
+      if (readOk) {
+        lookFails = 0;
+        setLook(next);
+      } else {
+        // One slow or dropped read must not blank the pill: the last good look
+        // stands until the reads have failed several times running. A real
+        // outage shows as "Reconnecting…" through the core, not as this name.
+        lookFails += 1;
+        if (lookFails >= LOOK_FAILS_BEFORE_NULL) setLook(null);
+      }
+      lookTimer = setTimeout(pollLook, readOk ? LOOK_POLL_MS : LOOK_RETRY_MS);
+    }
+
     if (enabled) {
       client.start();
+      pollLook();
       log(`following ProPresenter at ${host}:${port}`);
     } else {
       log('no ProPresenter host configured — set one in /admin');
@@ -83,10 +222,12 @@ module.exports = {
     }, HEARTBEAT_MS);
     heartbeat.unref?.();
 
-    current = { streams, getLatest: () => latest };
+    current = { streams, getLatest: snapshot };
 
     return {
       stop() {
+        lookStopped = true;
+        clearTimeout(lookTimer);
         clearInterval(heartbeat);
         client.stop();
         for (const res of streams) {
@@ -135,7 +276,7 @@ module.exports = {
         instanceSchema: {
           cleanTitles: { type: 'switch', label: 'Tidy titles', default: true },
           showPlaylist: { type: 'switch', label: 'Playlist', default: true, group: 'Show' },
-          showLive: { type: 'switch', label: 'Live status', default: true, group: 'Show' },
+          showLive: { type: 'switch', label: 'Audience look', default: true, group: 'Show' },
           showNowLabel: { type: 'switch', label: 'Now label', default: true, group: 'Show' },
           showSlideCount: { type: 'switch', label: 'Slide count', default: true, group: 'Show' },
           showProgress: { type: 'switch', label: 'Progress bar', default: true, group: 'Show' },
@@ -149,7 +290,7 @@ module.exports = {
     return {
       'GET /state': (req, res) => {
         res.writeHead(200, { 'Content-Type': 'application/json; charset=utf-8', 'Cache-Control': 'no-store' });
-        res.end(JSON.stringify({ state: current ? current.getLatest() : clearedViewModel() }));
+        res.end(JSON.stringify({ state: current ? current.getLatest() : { ...clearedViewModel(), look: null } }));
       },
 
       'GET /stream': (req, res) => {
@@ -160,7 +301,7 @@ module.exports = {
           'X-Accel-Buffering': 'no',
         });
         res.write('retry: 3000\n\n');
-        const view = current ? current.getLatest() : clearedViewModel();
+        const view = current ? current.getLatest() : { ...clearedViewModel(), look: null };
         res.write(`event: state\ndata: ${JSON.stringify(view)}\n\n`);
         if (!current) return void res.end();
         const { streams } = current;

modules/propresenter-now-next/style.css

@@ -141,6 +141,24 @@
   transition: opacity 0.6s ease 1.4s;
 }
 
+/* The audience look is information, not a status chip: it stays, in the
+   name as typed, in the normal text colour. A look changed by hand (matching
+   no saved look) is set in italic. */
+[data-module="propresenter-now-next"] .nn-live.is-live.is-look .nn-live-text {
+  opacity: 1;
+  transition: none;
+  max-width: 14em;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  text-transform: none;
+  color: var(--text);
+  font-weight: 600;
+}
+[data-module="propresenter-now-next"] .nn-live.is-look.is-modified .nn-live-text {
+  font-style: italic;
+}
+
 /* ── NOW card ──
    FIXED height so the title box is deterministic and the NOW/NEXT layout
    cannot oscillate (see the wall display's notes). */

modules/resi-cues/module.json

@@ -1,7 +1,7 @@
 {
   "id": "resi-cues",
   "name": "Resi Cues",
-  "version": "1.0.0",
+  "version": "1.0.3",
   "proddash": ">=1.4.0",
   "description": "Time until the next Resi cue point, on the board and as a timer",
   "provides": ["timers"],

modules/resi-cues/resi.js

@@ -39,6 +39,9 @@ function msToPosition(total) {
 
 const WINDOW_MS = 120000;   // how long a reading stays useful
 const JUMP_FLOOR_MS = 5000; // the smallest move ever treated as a seek
+const LOGIN_BACKOFF_MS = 15000;      // first wait after a failed Resi login
+const LOGIN_BACKOFF_MAX_MS = 300000; // longest wait between login attempts
+const SESSION_FRESH_MS = 60000;      // a refusal younger than this is a permission, not an expired session
 
 /**
  * Resi republishes a decoder's `position` only every few seconds, on an irregular
@@ -61,6 +64,8 @@ function createPlayhead(options) {
   let offsets = [];      // { at, off } — off is mediaMs - wall time it was read
   let spreads = [];      // how far apart honest readings sit: this link's noise
   let gaps = [];         // how long between the playhead actually moving
+  let changes = 0;       // readings that differed from the one before
+  let rejected = false;  // the last gap looked like a pause and was skipped
   let base;              // the trusted offset
   let lastMedia;
   let lastNewAt;
@@ -90,15 +95,25 @@ function createPlayhead(options) {
           spreads = spreads.concat(-delta).slice(-20);
         }
       }
-      if (lastNewAt !== undefined) {
+      // The first reading lands at an arbitrary point in Resi's cycle, so the gap
+      // from it to the next one is only a fraction of the real cadence. Learning
+      // from it locked in a 2s cadence that rejected every honest 30s gap.
+      if (lastNewAt !== undefined && changes > 0) {
         const gap = t - lastNewAt;
         // The gap either side of a pause is not Resi's cadence — recording it
         // would inflate the estimate and make the next pause slow to notice.
+        // But a pause is one gap; twice in a row is the cadence having changed.
         const worst = gaps.length ? Math.max.apply(null, gaps) : 0;
-        if (gap > 0 && gap < 60000 && (!worst || gap <= worst * 3)) {
-          gaps = gaps.concat(gap).slice(-8);
+        if (gap > 0 && gap < 60000) {
+          if (!worst || gap <= worst * 3 || rejected) {
+            gaps = gaps.concat(gap).slice(-8);
+            rejected = false;
+          } else {
+            rejected = true;
+          }
         }
       }
+      if (lastNewAt !== undefined) changes++;
       offsets = offsets.concat({ at: t, off });
       lastMedia = mediaMs;
       lastNewAt = t;
@@ -118,7 +133,9 @@ function createPlayhead(options) {
     // Only call it paused once the playhead has been still for clearly longer than
     // Resi's own cadence. A fixed timeout mistakes a slow update for a stop, and a
     // countdown that freezes mid-service is the worse failure of the two.
-    const pauseAfter = Math.max(15000, Math.min(45000, cadenceMs * 2.5 + 6000));
+    // Until a full gap has been measured the cadence is unknown; assume the slowest
+    // Resi plausibly is, or a 30s publisher reads as paused 15s after every start.
+    const pauseAfter = cadenceMs ? Math.max(15000, Math.min(45000, cadenceMs * 2.5 + 6000)) : 45000;
     const playing = base !== undefined && t - lastNewAt < pauseAfter;
     if (!playing) {
       return { estMs: lastEst !== undefined ? lastEst : lastMedia, playing: false, cadenceMs };
@@ -161,13 +178,43 @@ function createResiClient(options) {
     return h;
   }
 
+  /* A failed login used to be retried on the very next poll -- once a second, for
+     ever. Resi answers that with 429s, and since the retries never let up, the
+     account never got out of them. So a failure now holds off further attempts,
+     doubling from 15s to 5min (or as long as Resi's Retry-After asks), and every
+     call in between fails at once with the same reason instead of signing in. */
+  const now = typeof opts.now === 'function' ? opts.now : () => Date.now();
+  let loginFailures = 0;
+  let loginBlockedUntil = 0;
+  let loginError = '';
+
   async function login() {
-    const res = await doFetch(`${RESI}/api/v3/login?newToken=true`, {
-      method: 'POST',
-      headers: { 'Content-Type': 'application/json', Accept: 'application/json' },
-      body: JSON.stringify({ userName: opts.username, password: opts.password }),
-    });
-    if (!res.ok) throw new Error(`Resi login failed (${res.status})`);
+    if (now() < loginBlockedUntil) {
+      const wait = Math.ceil((loginBlockedUntil - now()) / 1000);
+      throw new Error(`${loginError} — retrying in ${wait}s`);
+    }
+    let res;
+    try {
+      res = await doFetch(`${RESI}/api/v3/login?newToken=true`, {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json', Accept: 'application/json' },
+        body: JSON.stringify({ userName: opts.username, password: opts.password }),
+      });
+    } catch (err) {
+      holdOff(`Resi unreachable (${(err && err.message) || err})`, 0);
+      throw new Error(loginError);
+    }
+    if (!res.ok) {
+      const reason = res.status === 429 ? 'Resi is rate-limiting this login (429)'
+        : res.status === 400 || res.status === 401 ? `Resi rejected the login (${res.status}) — check the password`
+          : `Resi login failed (${res.status})`;
+      const retryAfter = Number(res.headers && res.headers.get && res.headers.get('retry-after')) || 0;
+      holdOff(reason, retryAfter * 1000);
+      throw new Error(reason);
+    }
+    loginFailures = 0;
+    loginBlockedUntil = 0;
+    loginError = '';
     const setCookies = (res.headers.getSetCookie && res.headers.getSetCookie())
       || (res.headers.get('set-cookie') ? [res.headers.get('set-cookie')] : []);
     const jar = {};
@@ -179,24 +226,49 @@ function createResiClient(options) {
     token = jar.livingas1 || '';
     if (!token) throw new Error('Resi login returned no session cookie');
     cookieHeader = Object.keys(jar).map((k) => `${k}=${jar[k]}`).join('; ');
-    loggedInAt = Date.now();
+    loggedInAt = now();
     const me = await get('/api_v2.svc/users/me');
     customerId = (me && me.customerId) || '';
     if (!customerId) throw new Error('This Resi account has no customerId');
     return me;
   }
 
-  async function ensureSession() {
-    if (!token || Date.now() - loggedInAt > 50 * 60 * 1000) await login();
+  function holdOff(reason, askedMs) {
+    loginFailures++;
+    const backoff = Math.min(LOGIN_BACKOFF_MAX_MS, LOGIN_BACKOFF_MS * 2 ** (loginFailures - 1));
+    loginBlockedUntil = now() + Math.max(backoff, askedMs || 0);
+    loginError = reason;
   }
 
+  async function ensureSession() {
+    if (!token || now() - loggedInAt > 50 * 60 * 1000) await login();
+  }
+
+  /* The same hold-off covers every request, not just the login. A 401/403 used to
+     sign in again on the spot, every time: for a login that simply isn't allowed to
+     see a venue, that was a fresh sign-in on every poll. Now a refusal straight
+     after signing in is taken as what it is -- a permission -- and held off like a
+     failed login; only an older session is renewed. A 429 holds off too. */
   async function get(path) {
-    const res = await doFetch(RESI + path, { method: 'GET', headers: headers() });
-    if (res.status === 401 || res.status === 403) {
+    if (now() < loginBlockedUntil) {
+      const wait = Math.ceil((loginBlockedUntil - now()) / 1000);
+      throw new Error(`${loginError} — retrying in ${wait}s`);
+    }
+    let res = await doFetch(RESI + path, { method: 'GET', headers: headers() });
+    if ((res.status === 401 || res.status === 403) && now() - loggedInAt > SESSION_FRESH_MS) {
       await login();
-      const retry = await doFetch(RESI + path, { method: 'GET', headers: headers() });
-      if (!retry.ok) throw new Error(`Resi ${path} failed (${retry.status})`);
-      return retry.json();
+      res = await doFetch(RESI + path, { method: 'GET', headers: headers() });
+    }
+    if (res.status === 401 || res.status === 403) {
+      const where = path.includes('/venues') ? 'its venues'
+        : path.includes('/players') ? "this venue's decoders" : 'part of the account';
+      holdOff(`This Resi login isn't allowed to see ${where} (${res.status}) — ask a Resi admin for access`, 0);
+      throw new Error(loginError);
+    }
+    if (res.status === 429) {
+      const retryAfter = Number(res.headers && res.headers.get && res.headers.get('retry-after')) || 0;
+      holdOff('Resi is rate-limiting requests (429)', retryAfter * 1000);
+      throw new Error(loginError);
     }
     if (!res.ok) throw new Error(`Resi ${path} failed (${res.status})`);
     return res.json();
@@ -216,7 +288,10 @@ function createResiClient(options) {
       try {
         return (await get(`${path}?_=${Date.now()}`)) || [];
       } catch (err) {
-        if (!/\((4\d\d)\)/.test(String(err.message))) throw err;
+        // Only an objection to the parameter itself; a refusal or a "slow down"
+        // (401/403/429) is about the login, and dropping it then lost fresh readings.
+        const code = (String(err.message).match(/\((4\d\d)\)/) || [])[1];
+        if (!code || ['401', '403', '429'].includes(code)) throw err;
         cacheBust = false;
       }
     }

modules/resi-cues/resi.test.js

@@ -197,6 +197,32 @@ test('surroundingCues puts a cue you are exactly on behind you', () => {
   assert.strictEqual(surroundingCues([], 1000).next, null);
 });
 
+/* ── starting partway through Resi's cycle ─────────────────────────────── */
+
+// Seen live at North Attleboro: Resi publishing every ~30s, and the board starting a
+// few seconds before a publish. The first "gap" it measured was 2s (9s after a
+// reboot), and once that was the cadence every honest 30s gap was thrown out as a
+// pause gap -- so playback read as paused 15s into every update, the countdown froze,
+// and the next cue (and its name) stopped moving on.
+for (const [into, burst] of [[28000, false], [21000, false], [0, true]]) {
+  test(`30s Resi, started ${into / 1000}s into its cycle${burst ? ', 2s burst after a seek' : ''}: never falsely paused`, () => {
+    const w = makeWorld({ cadence: 30000, lag: 1000, jitter: 2000, net: 500 });
+    w.lastPublish = w.t - into;
+    const head = createPlayhead({ now: () => w.t });
+    const second = () => { w.advance(1000); head.note(w.poll()); return head.read(); };
+    let paused = 0;
+    for (let i = 0; i < 100; i++) if (!second().playing) paused++;
+    if (burst) {
+      w.media += 15 * 60000;                       // a seek, published at once...
+      w.lastPublish = w.t - w.nextCadence;
+      second(); second();
+      w.lastPublish = w.t - w.nextCadence;          // ...and again 2s later
+    }
+    for (let i = 0; i < 300; i++) if (!second().playing) paused++;
+    assert.strictEqual(paused, 0, `read as paused for ${paused}s while playing`);
+  });
+}
+
 /* ── the matrix ────────────────────────────────────────────────────────── */
 
 const argv = process.argv.slice(2).map(Number);

modules/resi-cues/server.js

@@ -70,6 +70,7 @@ function emptyTimers(now) {
 }
 
 let current = null; // the live handle, shared with routes()
+let pickerClient = null; // { key, client } for the decoder picker when the module isn't running those credentials
 
 module.exports = {
   init({ config, log }) {
@@ -146,7 +147,9 @@ module.exports = {
             elapsedMs: null,
             remainingMs,
             targetMs: Math.max(1000, state.next.ms - from),
-            status: { text: state.next.name || 'Next cue', tone: state.playing ? 'ok' : 'warn' },
+            // The label already is the cue's name, and it is what the card is titled
+            // with; repeating it on the status line only crowded the card.
+            status: { text: state.playing ? 'Next cue' : 'Held', tone: state.playing ? 'ok' : 'warn' },
             detail: state.event || '',
           });
         }
@@ -271,6 +274,7 @@ module.exports = {
       stateStreams,
       timerStreams,
       resi,
+      credentialsKey: `${username}\n${password}`,
       configured: Boolean(username && password),
       stop() {
         stopped = true;
@@ -332,9 +336,21 @@ module.exports = {
           return json(res, 200, { options: [], note: 'Enter the Resi login first' });
         }
         try {
-          const client = createResiClient({
-            username: String(config.username), password: String(config.password),
-          });
+          // The running module's client when it has these credentials, else one kept
+          // per login: a fresh client per request signed in on every admin page load,
+          // and its own hold-off never applied -- which kept Resi rate-limiting.
+          const username = String(config.username).trim();
+          const key = `${username}\n${config.password}`;
+          let client;
+          if (current && current.resi && current.credentialsKey === key) client = current.resi;
+          else {
+            if (!pickerClient || pickerClient.key !== key) {
+              pickerClient = { key, client: createResiClient({
+                username, password: String(config.password),
+              }) };
+            }
+            client = pickerClient.client;
+          }
           const options = [];
           for (const v of await client.venues()) {
             for (const p of await client.players(v.uuid)) {

modules/resi-cues/server.test.js

@@ -18,8 +18,9 @@
 const assert = require('assert');
 
 let passed = 0;
-function test(name, fn) {
-  fn();
+// Awaited, so an async test finishes before the next one changes the world under it.
+async function test(name, fn) {
+  await fn();
   passed++;
   console.log(`  ok  ${name}`);
 }
@@ -101,7 +102,7 @@ function collect(route, req) {
 
   const routes = server.routes({ config: {}, log: (m) => logged.push(m) });
 
-  test('signs in once and finds the configured decoder', () => {
+  await test('signs in once and finds the configured decoder', () => {
     assert.strictEqual(world.logins, 1, 'should sign in exactly once');
     const state = handle.state;
     assert.strictEqual(state.status, 'ok', state.message);
@@ -110,20 +111,20 @@ function collect(route, req) {
     assert.strictEqual(state.cues.length, 3);
   });
 
-  test('works out the cue either side of the playhead', () => {
+  await test('works out the cue either side of the playhead', () => {
     const state = handle.state;
     assert.strictEqual(state.next.name, 'Campus Host');
     assert.strictEqual(state.prev.name, 'Welcome');
     assert.ok(Math.abs(state.estMs - 528000) < 2000, `playhead was ${state.estMs}`);
   });
 
-  test('/state answers the same snapshot as the stream', () => {
+  await test('/state answers the same snapshot as the stream', () => {
     const res = collect(routes['GET /state']);
     assert.strictEqual(res.code, 200);
     assert.deepStrictEqual(JSON.parse(res.body), handle.state);
   });
 
-  test('/stream opens with an event so a new tile paints at once', () => {
+  await test('/stream opens with an event so a new tile paints at once', () => {
     const res = collect(routes['GET /stream']);
     assert.strictEqual(res.code, 200);
     assert.strictEqual(res.headers['Content-Type'], 'text/event-stream; charset=utf-8');
@@ -131,7 +132,7 @@ function collect(route, req) {
     assert.ok(res.body.includes('event: state'), 'should send an initial state event');
   });
 
-  test('/timers offers the countdown and the playhead, shaped as the guide says', () => {
+  await test('/timers offers the countdown and the playhead, shaped as the guide says', () => {
     const snap = JSON.parse(collect(routes['GET /timers']).body);
     assert.strictEqual(snap.source, 'resi-cues');
     assert.strictEqual(snap.label, 'Resi');
@@ -145,7 +146,7 @@ function collect(route, req) {
     assert.ok(Math.abs(next.remainingMs - 222000) < 2000, `remaining was ${next.remainingMs}`);
     // the countdown runs from the cue before it, so a consumer can colour progress
     assert.strictEqual(next.targetMs, 450000);
-    assert.strictEqual(next.status.text, 'Campus Host');
+    assert.strictEqual(next.status.text, 'Next cue');   // the name is the label; not repeated
     assert.ok(next.startedAt <= snap.updatedAt, 'startedAt must be in the past');
 
     assert.strictEqual(playhead.id, 'playhead');
@@ -154,7 +155,7 @@ function collect(route, req) {
     assert.ok(Math.abs(playhead.elapsedMs - 528000) < 2000);
   });
 
-  test('a cue fired at the host moves the countdown on the next poll', async () => {
+  await test('a cue fired at the host moves the countdown on the next poll', async () => {
     world.position = '00:12:40.000';         // jumped past Campus Host
     tickFn();
     await settle();
@@ -162,10 +163,10 @@ function collect(route, req) {
     assert.strictEqual(state.next.name, 'Message');
     assert.strictEqual(state.prev.name, 'Campus Host');
     const snap = JSON.parse(collect(routes['GET /timers']).body);
-    assert.strictEqual(snap.timers[0].label, 'Message');
+    assert.strictEqual(snap.timers[0].label, 'Message');   // the card's name follows the cue
   });
 
-  test('a decoder with no event reports nothing playing rather than stale cues', async () => {
+  await test('a decoder with no event reports nothing playing rather than stale cues', async () => {
     world.eventId = '';
     tickFn();
     await settle();
@@ -174,13 +175,13 @@ function collect(route, req) {
     assert.strictEqual(handle.state.event, '');
   });
 
-  test('health speaks about the upstream, not about itself', () => {
+  await test('health speaks about the upstream, not about itself', () => {
     const h = handle.health();
     assert.ok(['ok', 'connecting', 'error'].includes(h.status), h.status);
     assert.ok(h.message.length > 0, 'health should say something useful');
   });
 
-  test('an unconfigured module idles instead of hammering Resi', () => {
+  await test('an unconfigured module idles instead of hammering Resi', () => {
     const before = world.logins;
     const idle = server.init({ config: {}, log: () => {} });
     assert.strictEqual(world.logins, before, 'must not sign in with no credentials');
@@ -189,12 +190,90 @@ function collect(route, req) {
     idle.stop();
   });
 
-  test('stop() leaves nothing running', () => {
+  await test('stop() leaves nothing running', () => {
     handle.stop();
     const res = collect(routes['GET /state']);
     assert.strictEqual(JSON.parse(res.body).status, 'error');
   });
 
+  // Seen live at North Attleboro: a failed login was retried on every 1s poll, so
+  // Resi answered 429 and kept answering it, and the decoder picker stayed empty.
+  await test('a failed login holds off instead of retrying every poll', async () => {
+    const { createResiClient } = require('./resi');
+    let t = 1700000000000;
+    let logins = 0;
+    let limited = true;
+    const client = createResiClient({
+      username: 'a@b.c',
+      password: 'secret',
+      now: () => t,
+      fetch: async (url) => {
+        const path = String(url).replace('https://central.resi.io', '').split('?')[0];
+        if (path === '/api/v3/login') {
+          logins++;
+          if (limited) return reply({}, { ok: false, status: 429 });
+          return reply({}, { headers: { get: () => null, getSetCookie: () => ['livingas1=T; Path=/'] } });
+        }
+        if (path === '/api_v2.svc/users/me') return reply({ customerId: 'CUST' });
+        if (path === '/api/v3/customers/CUST/venues') return reply([{ uuid: 'V1' }]);
+        return reply({}, { ok: false, status: 404 });
+      },
+    });
+    const poll = async () => { try { await client.venues(); return 'ok'; } catch (e) { return e.message; } };
+
+    assert.match(await poll(), /rate-limiting/);
+    for (let i = 0; i < 60; i++) { t += 1000; await poll(); }   // a minute of 1s polls
+    assert.ok(logins <= 3, `signed in ${logins} times in a minute while rate-limited`);
+    assert.match(await poll(), /retrying in \d+s/, 'the wait is shown, not hidden');
+
+    limited = false;
+    t += 5 * 60000;                                             // past the longest hold-off
+    assert.strictEqual(await poll(), 'ok', 'recovers once Resi lets it in');
+    const after = logins;
+    for (let i = 0; i < 30; i++) { t += 1000; await poll(); }
+    assert.strictEqual(logins, after, 'a good session is not signed in again');
+  });
+
+  await test('a rejected password says so', async () => {
+    const { createResiClient } = require('./resi');
+    const client = createResiClient({
+      username: 'a@b.c', password: 'wrong', now: () => 0,
+      fetch: async () => reply({}, { ok: false, status: 400 }),
+    });
+    await assert.rejects(client.venues(), /check the password/);
+  });
+
+  // Seen live: media@waters.church signs in fine but may not list venues (403). The
+  // client answered every 403 by signing in again -- a fresh login on every poll.
+  await test('a login that may not see venues is held off, not signed in every poll', async () => {
+    const { createResiClient } = require('./resi');
+    let t = 1700000000000;
+    let logins = 0;
+    let venueCalls = 0;
+    const client = createResiClient({
+      username: 'a@b.c', password: 'secret', now: () => t,
+      fetch: async (url) => {
+        const path = String(url).replace('https://central.resi.io', '').split('?')[0];
+        if (path === '/api/v3/login') {
+          logins++;
+          return reply({}, { headers: { get: () => null, getSetCookie: () => ['livingas1=T; Path=/'] } });
+        }
+        if (path === '/api_v2.svc/users/me') return reply({ customerId: 'CUST' });
+        if (path === '/api/v3/customers/CUST/venues') { venueCalls++; return reply({}, { ok: false, status: 403 }); }
+        return reply({}, { ok: false, status: 404 });
+      },
+    });
+    const poll = async () => { try { await client.venues(); return 'ok'; } catch (e) { return e.message; } };
+
+    assert.match(await poll(), /isn't allowed to see its venues \(403\)/);
+    for (let i = 0; i < 120; i++) { t += 1000; await poll(); }   // two minutes of 1s polls
+    // At most one renewal once the session is over a minute old (in case it really
+    // had expired), then the hold-off keeps growing -- not one sign-in per poll.
+    assert.ok(logins <= 2, `signed in ${logins} times in two minutes for a permission problem`);
+    assert.ok(venueCalls <= 8, `asked for venues ${venueCalls} times in two minutes (a poll each would be 121)`);
+    assert.match(await poll(), /ask a Resi admin/);
+  });
+
   globalThis.setInterval = realSetInterval;
   globalThis.clearInterval = realClearInterval;
   console.log(`\n${passed} tests passed`);

modules/vista-cues/client.js

@@ -0,0 +1,264 @@
+/* Vista Cues — client part.
+
+   One tile: the cue list most recently fired, big, with how long ago and
+   who fired it; under it the other lists still live, the recent notes, and
+   which senders we are in session with. All of it comes from the server's
+   one `state` event; between events only the "how long ago" clocks move. */
+
+const MINUS_SVG = '<svg viewBox="0 0 16 16" width="13" height="13" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round"><path d="M3.5 8h9"/></svg>';
+const PLUS_SVG = '<svg viewBox="0 0 16 16" width="13" height="13" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round"><path d="M3.5 8h9M8 3.5v9"/></svg>';
+const CLEAR_SVG = '<svg viewBox="0 0 16 16" width="13" height="13" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round"><path d="M6.2 13.5h7.3"/><path d="M2.8 9.6 8.9 3.5a1.4 1.4 0 0 1 2 0l2.1 2.1a1.4 1.4 0 0 1 0 2l-5.9 5.9H5.6L2.8 10.7a.8.8 0 0 1 0-1.1Z"/><path d="m6 6.4 4.1 4.1"/></svg>';
+
+const ACTION_LABEL = {
+  go: 'Go',
+  release: 'Release',
+  releaseAll: 'Release all',
+  pause: 'Pause',
+  back: 'Back',
+  flash: 'Flash',
+  cleared: 'Cleared',
+  '': '—',
+};
+
+function esc(s) {
+  return String(s ?? '').replace(/[&<>"']/g, (c) => ({ '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#39;' }[c]));
+}
+
+/** 75 000 ms → "1:15", 3 725 000 → "1:02:05". */
+function since(ms) {
+  const s = Math.max(0, Math.floor(ms / 1000));
+  const h = Math.floor(s / 3600);
+  const m = Math.floor((s % 3600) / 60);
+  const ss = String(s % 60).padStart(2, '0');
+  return h ? `${h}:${String(m).padStart(2, '0')}:${ss}` : `${m}:${ss}`;
+}
+
+function clockTime(ms) {
+  return new Date(ms).toLocaleTimeString([], { hour: 'numeric', minute: '2-digit', second: '2-digit' });
+}
+
+export default function create({ root, moduleApi }) {
+  const prefs = () => moduleApi.instanceSettings || {};
+  const on = (k, dflt = true) => (prefs()[k] === undefined ? dflt : prefs()[k] !== false);
+  const scale = () => Math.min(2.5, Math.max(0.5, Number(prefs().textScale) || 1));
+
+  let state = null;
+  let skew = 0;            // server clock − our clock
+  let stream = null;
+  let tick = null;
+  let el = {};
+  let resizeObserver = null;
+
+  const serverNow = () => Date.now() + skew;
+
+  /* ── fitting the big name to its box ─────────────────────────────── */
+
+  function fit(node) {
+    if (!node || !node.isConnected) return;
+    node.style.fontSize = '';
+    const avail = node.parentElement ? node.parentElement.clientWidth : node.clientWidth;
+    let size = parseFloat(getComputedStyle(node).fontSize) || 16;
+    for (let i = 0; i < 3 && node.scrollWidth > avail + 0.5 && size > 10; i += 1) {
+      size = Math.max(10, size * (avail / node.scrollWidth) * 0.98);
+      node.style.fontSize = `${size}px`;
+    }
+  }
+
+  /* ── drawing ─────────────────────────────────────────────────────── */
+
+  function build() {
+    root.innerHTML = `
+      <div class="vc-root">
+        <div class="vc-offline" hidden></div>
+        <div class="vc-body">
+          <div class="vc-now">
+            <div class="vc-kicker"><span class="vc-pill"></span><span class="vc-ago"></span></div>
+            <div class="vc-name-wrap"><div class="vc-name"></div></div>
+            <div class="vc-meta"></div>
+          </div>
+          <div class="vc-active"></div>
+          <div class="vc-recent"></div>
+          <div class="vc-sources"></div>
+        </div>
+      </div>`;
+    const q = (s) => root.querySelector(s);
+    el = {
+      root: q('.vc-root'),
+      offline: q('.vc-offline'),
+      pill: q('.vc-pill'),
+      ago: q('.vc-ago'),
+      name: q('.vc-name'),
+      meta: q('.vc-meta'),
+      active: q('.vc-active'),
+      recent: q('.vc-recent'),
+      sources: q('.vc-sources'),
+    };
+  }
+
+  function render() {
+    if (!el.root) return;
+    el.root.style.setProperty('--vc-scale', String(scale()));
+    const s = state;
+    if (!s) {
+      el.name.textContent = 'Connecting…';
+      el.root.dataset.tone = 'muted';
+      return;
+    }
+
+    const connected = s.sources.filter((x) => x.connected);
+    const offline = !s.listening || !connected.length;
+    el.root.classList.toggle('is-offline', offline);
+    el.offline.hidden = !offline;
+    el.offline.textContent = !s.listening ? 'Not listening' : 'No MIDI session';
+
+    // Now
+    const cur = s.current;
+    if (cur) {
+      el.root.dataset.tone = cur.state === 'paused' ? 'warn' : 'ok';
+      el.pill.textContent = cur.state === 'paused' ? 'Paused' : 'Live';
+      el.pill.hidden = false;
+      if (el.name.textContent !== cur.name) { el.name.textContent = cur.name; fit(el.name); }
+      const bits = [];
+      if (cur.goes > 1) bits.push(`Go ×${cur.goes}`);
+      if (cur.source) bits.push(cur.source);
+      if (cur.lastAction === 'back') bits.push('Back');
+      el.meta.textContent = bits.join(' · ');
+    } else {
+      el.root.dataset.tone = 'muted';
+      el.pill.hidden = true;
+      const msg = s.rules ? 'No cue list live' : 'No cue lists mapped';
+      if (el.name.textContent !== msg) { el.name.textContent = msg; fit(el.name); }
+      el.meta.textContent = s.rules ? (s.log.length ? '' : 'Waiting for the first cue') : 'Add the cue sheet in /admin → Vista Cues';
+    }
+
+    // Other live lists
+    el.active.hidden = !on('showActive') || !s.active.length;
+    if (!el.active.hidden) {
+      el.active.innerHTML = s.active.map((l) => `
+        <div class="vc-chip${l.state === 'paused' ? ' is-paused' : ''}" title="${esc(l.source || '')}">
+          ${l.group ? `<span class="vc-chip-group">${esc(l.group)}</span>` : ''}
+          <span class="vc-chip-name">${esc(l.name)}</span>
+          <span class="vc-chip-ago" data-since="${l.lastAt}"></span>
+        </div>`).join('');
+    }
+
+    // Recent
+    const showUnmapped = on('showUnmapped', false);
+    const rows = s.log.filter((e) => e.mapped || showUnmapped).slice(0, 12);
+    el.recent.hidden = !on('showRecent') || !rows.length;
+    if (!el.recent.hidden) {
+      el.recent.innerHTML = rows.map((e) => `
+        <div class="vc-row${e.mapped ? '' : ' is-unmapped'}" data-action="${esc(e.action)}">
+          <span class="vc-row-time">${esc(clockTime(e.at))}</span>
+          <span class="vc-row-action">${esc(e.mapped ? (ACTION_LABEL[e.action] ?? e.action) : 'Unmapped')}</span>
+          <span class="vc-row-list">${esc(e.mapped ? e.list : e.trigger)}</span>
+          <span class="vc-row-source">${esc(e.source)}</span>
+        </div>`).join('');
+    }
+
+    // Senders
+    el.sources.hidden = !on('showSources') || !s.sources.length;
+    if (!el.sources.hidden) {
+      el.sources.innerHTML = s.sources.map((x) => `
+        <span class="vc-src${x.connected ? ' is-on' : ''}${x.offNetwork ? ' is-off-network' : ''}" title="${esc((x.offNetwork ? `${x.offNetwork === 'by name' ? 'Set by name' : 'Not on the wired network'} (${s.wiredNetwork}) · ` : '') + (x.connected ? `${x.name || x.label} · ${x.address}` : (x.error || 'Joining…')))}">
+          <span class="vc-dot"></span>${esc(x.label)}
+        </span>`).join('');
+    }
+
+    updateClocks();
+    reportStatus();
+  }
+
+  function updateClocks() {
+    if (!state || !el.root) return;
+    const now = serverNow();
+    const cur = state.current;
+    el.ago.textContent = cur ? since(now - cur.lastAt) : '';
+    el.ago.title = cur ? `Fired ${clockTime(cur.firedAt)}` : '';
+    root.querySelectorAll('[data-since]').forEach((n) => {
+      n.textContent = since(now - Number(n.dataset.since));
+    });
+  }
+
+  function reportStatus() {
+    const s = state;
+    if (!s) return;
+    if (!s.listening) return moduleApi.setStatus('error', s.error || 'Not listening for MIDI');
+    const connected = s.sources.filter((x) => x.connected);
+    const waiting = s.sources.filter((x) => !x.connected);
+    const off = s.sources.filter((x) => x.offNetwork);
+    if (off.length) return moduleApi.setStatus('error', `${off.map((x) => x.label).join(', ')} not on the wired network (${s.wiredNetwork})`);
+    if (!connected.length) {
+      const why = waiting.length ? `Joining ${waiting.map((x) => `${x.label}${x.error ? ` (${x.error})` : ''}`).join(', ')}` : 'No MIDI session connected';
+      return moduleApi.setStatus('error', why);
+    }
+    const msg = `Hearing ${connected.map((x) => x.label).join(', ')}${waiting.length ? ` · not ${waiting.map((x) => x.label).join(', ')}` : ''}`;
+    return moduleApi.setStatus(waiting.length ? 'connecting' : 'ok', msg);
+  }
+
+  function take(next) {
+    if (!next) return;
+    skew = Number(next.now) ? Number(next.now) - Date.now() : 0;
+    state = next;
+    render();
+  }
+
+  async function refresh() {
+    try {
+      const r = await moduleApi.fetch('/state');
+      if (r.ok) take((await r.json()).state);
+    } catch { /* the stream will say so */ }
+  }
+
+  /* ── title bar ───────────────────────────────────────────────────── */
+
+  function bump(delta) {
+    const next = Math.round(Math.min(2.5, Math.max(0.5, scale() + delta)) * 10) / 10;
+    moduleApi.saveInstanceSettings({ textScale: next });
+    render();
+    fit(el.name);
+  }
+
+  return {
+    start() {
+      build();
+      render();
+      moduleApi.header.addButton({ icon: MINUS_SVG, title: 'Smaller text', onClick: () => bump(-0.1) });
+      moduleApi.header.addButton({ icon: PLUS_SVG, title: 'Larger text', onClick: () => bump(0.1) });
+      moduleApi.header.addButton({
+        icon: CLEAR_SVG,
+        title: 'Clear live lists',
+        async onClick() {
+          try { await moduleApi.fetch('/clear', { method: 'POST' }); } catch { /* status says why */ }
+        },
+      });
+      moduleApi.setStatus('connecting', 'Connecting…');
+      stream = moduleApi.sse('/stream', {
+        open() { refresh(); },
+        error() { moduleApi.setStatus('error', 'Lost connection to ProdDash'); },
+        events: {
+          state(e) {
+            try { take(JSON.parse(e.data)); } catch { /* malformed frame */ }
+          },
+        },
+      });
+      refresh();
+      tick = setInterval(updateClocks, 1000);
+      if (typeof ResizeObserver === 'function') {
+        resizeObserver = new ResizeObserver(() => fit(el.name));
+        resizeObserver.observe(root);
+      }
+    },
+    stop() {
+      clearInterval(tick);
+      tick = null;
+      if (stream) { stream.close(); stream = null; }
+      if (resizeObserver) { resizeObserver.disconnect(); resizeObserver = null; }
+      root.innerHTML = '';
+      el = {};
+    },
+    onResize() {
+      fit(el.name);
+    },
+  };
+}

modules/vista-cues/mapping.js

@@ -0,0 +1,148 @@
+'use strict';
+
+/**
+ * The admin page's "Cue lists" text → rules, and MIDI events → what Vista
+ * was told to do.
+ *
+ * One rule per line, the way it reads on a cue sheet:
+ *
+ *   60 = Walk-in                  note 60 fires Go on "Walk-in"
+ *   C3 = Worship 1                note names work too (see "Middle C" in admin)
+ *   61 release Walk-in            release a list
+ *   62 pause Walk-in              also: back, pause, go (the default)
+ *   127 release all               every list off
+ *   ch2:64 = Message              only on MIDI channel 2 (otherwise any channel)
+ *   pc5 = Baptism                 a program change instead of a note
+ *   65 = "Back Lights"            quote a name that starts with an action word
+ *   # anything after a # is a comment
+ *
+ * Groups: a line "[Colors]" starts a group, and every rule below it belongs
+ * to it until the next "[…]" ("[]" ends grouping). A Go in a group replaces
+ * whichever list of that group was live — firing "Blue" ends "Red" — which is
+ * how a sheet without release notes still says what is on. The first group
+ * in the sheet is the headline the tile shows largest.
+ *
+ *   30 flash Blinder Flash 1      a momentary hit: logged, never left live
+ *
+ * The separator between the trigger and the rest may be "=", "-", ":", "→",
+ * a tab or just a space, so a column pasted from a spreadsheet works.
+ */
+
+const NOTE_NAMES = { c: 0, d: 2, e: 4, f: 5, g: 7, a: 9, b: 11 };
+const NAMES_SHARP = ['C', 'C#', 'D', 'D#', 'E', 'F', 'F#', 'G', 'G#', 'A', 'A#', 'B'];
+
+const ACTIONS = [
+  // Longest first, so "release all" wins over "release".
+  [/^(release[\s_-]*all|all[\s_-]*off|releaseall|clear)\b/i, 'releaseAll'],
+  [/^(release|off|stop|kill)\b/i, 'release'],
+  [/^(pause|hold)\b/i, 'pause'],
+  [/^(back|previous|prev)\b/i, 'back'],
+  [/^(flash|hit|momentary)\b/i, 'flash'],
+  [/^(go|fire|play|start)\b/i, 'go'],
+];
+
+/** Octave offset: with middle C (note 60) called "C3", C-2 is note 0; with "C4", C-1 is. */
+function octaveBase(middleC) {
+  return middleC === 'C4' ? 1 : 2;
+}
+
+/** "F#2" → note number, or null. */
+function noteFromName(token, middleC) {
+  const m = /^([a-g])(#|♯|b|♭)?(-?\d+)$/i.exec(token);
+  if (!m) return null;
+  let pc = NOTE_NAMES[m[1].toLowerCase()];
+  if (m[2] === '#' || m[2] === '♯') pc += 1;
+  if (m[2] === 'b' || m[2] === '♭') pc -= 1;
+  const n = (Number(m[3]) + octaveBase(middleC)) * 12 + pc;
+  return n >= 0 && n <= 127 ? n : null;
+}
+
+function noteName(n, middleC) {
+  return `${NAMES_SHARP[n % 12]}${Math.floor(n / 12) - octaveBase(middleC)}`;
+}
+
+/**
+ * Parse the whole text. Returns `{ rules, errors, groups }` (groups in sheet order); a line that can't be read
+ * is reported (line number + why) and skipped, never fatal.
+ */
+function parseMapping(text, { middleC = 'C3' } = {}) {
+  const rules = [];
+  const errors = [];
+  const groups = [];
+  let group = '';
+  String(text || '').split(/\r?\n/).forEach((raw, i) => {
+    // A comment is a # that starts the line or follows a space ("C#3" and "Song #2" are not).
+    const line = raw.replace(/(^|\s)#(\s.*|$)/, '').trim();
+    if (!line) return;
+    const header = /^\[(.*)\]$/.exec(line);
+    if (header) {
+      group = header[1].trim();
+      if (group && !groups.includes(group)) groups.push(group);
+      return;
+    }
+    const m = /^(?:ch(?:annel)?\s*(\d{1,2})\s*[:/]\s*)?(pc\s*\d{1,3}|note\s*\d{1,3}|\d{1,3}|[a-g](?:#|♯|b|♭)?-?\d)\s*(?:[=:\t→>|,-]+\s*|\s+|$)(.*)$/i.exec(line);
+    if (!m) {
+      errors.push({ line: i + 1, text: raw.trim(), why: 'starts with no note' });
+      return;
+    }
+    const channel = m[1] ? Number(m[1]) : null;
+    if (channel != null && (channel < 1 || channel > 16)) {
+      errors.push({ line: i + 1, text: raw.trim(), why: 'channel must be 1–16' });
+      return;
+    }
+    const trig = m[2].replace(/\s+/g, '').toLowerCase();
+    let kind = 'note';
+    let number;
+    if (trig.startsWith('pc')) {
+      kind = 'program';
+      number = Number(trig.slice(2));
+    } else if (trig.startsWith('note')) {
+      number = Number(trig.slice(4));
+    } else if (/^\d+$/.test(trig)) {
+      number = Number(trig);
+    } else {
+      number = noteFromName(m[2].replace(/\s+/g, ''), middleC);
+    }
+    if (number == null || !Number.isInteger(number) || number < 0 || number > 127) {
+      errors.push({ line: i + 1, text: raw.trim(), why: 'note must be 0–127' });
+      return;
+    }
+    let rest = m[3].trim();
+    let action = 'go';
+    const quoted = (t) => /^"(.*)"$/.exec(t);
+    for (const [re, a] of quoted(rest) ? [] : ACTIONS) {
+      const am = re.exec(rest);
+      if (am) {
+        action = a;
+        rest = rest.slice(am[0].length).replace(/^[\s=:→>|,-]+/, '').trim();
+        break;
+      }
+    }
+    const q = quoted(rest);
+    if (q) rest = q[1].trim();
+    if (action !== 'releaseAll' && !rest) {
+      errors.push({ line: i + 1, text: raw.trim(), why: 'no cue list name' });
+      return;
+    }
+    rules.push({ line: i + 1, channel, kind, number, action, list: action === 'releaseAll' ? '' : rest, group });
+  });
+  return { rules, errors, groups };
+}
+
+/** The first rule a MIDI event matches, or null. Only note-ons and program changes fire anything. */
+function match(rules, event) {
+  let kind;
+  let number;
+  if (event.type === 'noteon') { kind = 'note'; number = event.note; }
+  else if (event.type === 'program') { kind = 'program'; number = event.program; }
+  else return null;
+  return rules.find((r) => r.kind === kind && r.number === number && (r.channel == null || r.channel === event.channel)) || null;
+}
+
+/** "Note 60 (C3) · ch 1" — how an event is named on the tile. */
+function triggerLabel(event, middleC) {
+  if (event.type === 'program') return `PC ${event.program} · ch ${event.channel}`;
+  return `Note ${event.note} (${noteName(event.note, middleC)}) · ch ${event.channel}`;
+}
+
+module.exports = { parseMapping, match, noteName, noteFromName, triggerLabel };

modules/vista-cues/module.json

@@ -0,0 +1,173 @@
+{
+  "id": "vista-cues",
+  "name": "Vista Cues",
+  "version": "1.1.0",
+  "proddash": ">=1.5.0",
+  "description": "Which Vista 3 cue lists are live: hears the network MIDI that ProPresenter and Tracks send Vista",
+  "permissions": [
+    {
+      "kind": "local-network",
+      "reason": "Joining the network MIDI sessions that fire Vista's cue lists"
+    }
+  ],
+  "client": "client.js",
+  "server": "server.js",
+  "style": "style.css",
+  "minSize": {
+    "w": 2,
+    "h": 1
+  },
+  "defaultSize": {
+    "w": 5,
+    "h": 4
+  },
+  "configSchema": {
+    "source1Name": {
+      "type": "string",
+      "label": "Name",
+      "default": "ProPresenter",
+      "group": "First sender",
+      "help": "What the tile calls notes from this machine."
+    },
+    "source1": {
+      "type": "endpoint",
+      "label": "Session",
+      "default": {
+        "host": "",
+        "port": 5004
+      },
+      "group": "First sender",
+      "help": "The Mac whose network MIDI session sends Vista its notes, and that session's port (Audio MIDI Setup → Window → Show MIDI Studio → Network; usually 5004)."
+    },
+    "source2Name": {
+      "type": "string",
+      "label": "Name",
+      "default": "Tracks",
+      "group": "Second sender"
+    },
+    "source2": {
+      "type": "endpoint",
+      "label": "Session",
+      "default": {
+        "host": "",
+        "port": 5004
+      },
+      "group": "Second sender",
+      "help": "Leave the host empty if this machine joins us from its own side instead."
+    },
+    "source3Name": {
+      "type": "string",
+      "label": "Name",
+      "default": "Companion",
+      "group": "Third sender"
+    },
+    "source3": {
+      "type": "endpoint",
+      "label": "Session",
+      "default": {
+        "host": "",
+        "port": 5004
+      },
+      "group": "Third sender",
+      "help": "Companion on this machine counts too: its network session's host and port (this Mac's own name works)."
+    },
+    "cueLists": {
+      "type": "text",
+      "label": "Cue lists",
+      "default": "",
+      "group": "Cue lists",
+      "help": "One per line from the cue sheet: 60 = Walk-in · 61 release Walk-in · 127 release all · 30 flash Blinder 1 (momentary). A line like [Colors] starts a group: a Go in a group replaces that group's live list; the first group is the tile's headline. Also pause, back, note names, ch2:64, pc5, and \"quotes\" around a name starting with one of those words."
+    },
+    "middleC": {
+      "type": "select",
+      "label": "Middle C",
+      "default": "C3",
+      "options": [
+        {
+          "value": "C3",
+          "label": "C3 (Ableton, Yamaha)"
+        },
+        {
+          "value": "C4",
+          "label": "C4 (Logic, scientific)"
+        }
+      ],
+      "group": "Cue lists",
+      "help": "Only matters for note names in the sheet. Note 60 is middle C either way."
+    },
+    "headTakesOver": {
+      "type": "switch",
+      "label": "Main group takes over",
+      "default": true,
+      "group": "Cue lists",
+      "help": "On: a Go in the sheet's first [group] (the main scene) clears every other live list, as a new scene takes over the look. FX fired after it layer on top again."
+    },
+    "exclusive": {
+      "type": "switch",
+      "label": "Go releases others",
+      "default": false,
+      "group": "Cue lists",
+      "help": "On: a Go replaces every other live list, groups or not. Leave off when lists stack, and use groups instead."
+    },
+    "sessionName": {
+      "type": "string",
+      "label": "Session name",
+      "default": "ProdDash Lighting",
+      "group": "This machine",
+      "help": "How ProdDash appears in other Macs' Audio MIDI Setup Directory."
+    },
+    "sessionPort": {
+      "type": "number",
+      "label": "Session port",
+      "default": 5040,
+      "min": 1024,
+      "max": 65534,
+      "group": "This machine",
+      "help": "UDP; this one and the next are used. Anything not already taken by a MIDI session on this machine."
+    },
+    "advertise": {
+      "type": "switch",
+      "label": "Bonjour",
+      "default": true,
+      "group": "This machine",
+      "help": "List this machine in Audio MIDI Setup's Directory on the network (macOS)."
+    },
+    "wiredNetwork": {
+      "type": "string",
+      "label": "Wired network",
+      "default": "",
+      "group": "This machine",
+      "help": "The network MIDI must come over, like 10.1.0.0/16 (several: comma between). A sender set by name or to an address outside it shows red here and on the tile; it still joins. Empty: any network."
+    }
+  },
+  "configGroups": {
+    "First sender": {
+      "help": "ProdDash joins the senders' network MIDI sessions, like Vista does, so it hears every note Vista hears. On each sender, in Audio MIDI Setup → MIDI Network Setup, the session must be enabled and 'Who may connect to me' set to Anyone. Or skip the address and connect to \"ProdDash Lighting\" from that Mac's Directory instead."
+    },
+    "This machine": {
+      "collapsed": true
+    }
+  },
+  "instanceSchema": {
+    "showActive": {
+      "type": "switch",
+      "label": "Other lists",
+      "default": true
+    },
+    "showRecent": {
+      "type": "switch",
+      "label": "Recent",
+      "default": true
+    },
+    "showSources": {
+      "type": "switch",
+      "label": "Senders",
+      "default": true
+    },
+    "showUnmapped": {
+      "type": "switch",
+      "label": "Unmapped notes",
+      "default": false
+    }
+  }
+}

modules/vista-cues/rtpmidi.js

@@ -0,0 +1,630 @@
+'use strict';
+
+/**
+ * A listen-only RTP-MIDI (AppleMIDI) session participant, in plain Node.
+ *
+ * This is the protocol behind a macOS "Network" MIDI session (Audio MIDI
+ * Setup → MIDI Network Setup) and rtpMIDI on Windows: two UDP ports, a
+ * control port P and a data port P+1. A session sends every MIDI message to
+ * every participant it is connected to, so joining the same session Vista is
+ * in hears exactly the notes Vista hears.
+ *
+ * Both ways of joining work:
+ *  - someone invites us (we show up in Audio MIDI Setup's Directory, or they
+ *    add our address by hand) and we accept anyone;
+ *  - we invite them (`invite(host, port)`), and keep re-inviting until they
+ *    accept, then keep the connection alive with clock syncs.
+ *
+ * We never send MIDI. Packet layouts follow Apple's AppleMIDI session
+ * protocol and RFC 6295 (RTP payload for MIDI).
+ */
+
+const dgram = require('dgram');
+const dns = require('dns');
+const crypto = require('crypto');
+const { EventEmitter } = require('events');
+
+const SIG = 0xffff;
+const CMD = { IN: 0x494e, OK: 0x4f4b, NO: 0x4e4f, BY: 0x4259, CK: 0x434b, RS: 0x5253 };
+const PROTOCOL_VERSION = 2;
+
+const INVITE_RETRY_MS = 1500;     // between invitation attempts while setting up
+const INVITE_ATTEMPTS = 12;       // then give up for a while…
+const REINVITE_MS = 5000;         // …and start over after this long
+const SYNC_FAST_MS = 1500;        // first few clock syncs, close together
+const SYNC_MS = 10000;            // then this often, as macOS does
+const SYNC_TIMEOUT_MS = 25000;    // no sync answer for this long → connection is gone
+const IDLE_MS = 90000;            // an inbound participant we have not heard from at all
+const FEEDBACK_MS = 1000;         // receiver feedback (lets the sender trim its journal)
+
+/** The session clock: 100 µs ticks since this process started the session. */
+function makeClock() {
+  const t0 = process.hrtime.bigint();
+  return () => (process.hrtime.bigint() - t0) / 100000n;
+}
+
+function randomU32() {
+  return crypto.randomBytes(4).readUInt32BE(0);
+}
+
+/* ── packets ─────────────────────────────────────────────────────────── */
+
+function sessionPacket(cmd, token, ssrc, name) {
+  const nameBuf = name == null ? Buffer.alloc(0) : Buffer.from(`${name}\0`, 'utf8');
+  const b = Buffer.alloc(16 + nameBuf.length);
+  b.writeUInt16BE(SIG, 0);
+  b.writeUInt16BE(cmd, 2);
+  b.writeUInt32BE(PROTOCOL_VERSION, 4);
+  b.writeUInt32BE(token >>> 0, 8);
+  b.writeUInt32BE(ssrc >>> 0, 12);
+  nameBuf.copy(b, 16);
+  return b;
+}
+
+function syncPacket(ssrc, count, ts) {
+  const b = Buffer.alloc(36);
+  b.writeUInt16BE(SIG, 0);
+  b.writeUInt16BE(CMD.CK, 2);
+  b.writeUInt32BE(ssrc >>> 0, 4);
+  b.writeUInt8(count, 8);
+  for (let i = 0; i < 3; i++) b.writeBigUInt64BE(BigInt.asUintN(64, ts[i] || 0n), 12 + i * 8);
+  return b;
+}
+
+function feedbackPacket(ssrc, seq) {
+  const b = Buffer.alloc(12);
+  b.writeUInt16BE(SIG, 0);
+  b.writeUInt16BE(CMD.RS, 2);
+  b.writeUInt32BE(ssrc >>> 0, 4);
+  b.writeUInt16BE(seq & 0xffff, 8);
+  return b;
+}
+
+/** A session command (IN/OK/NO/BY/CK/RS), or null when it isn't one. */
+function parseSession(buf) {
+  if (buf.length < 4 || buf.readUInt16BE(0) !== SIG) return null;
+  const cmd = buf.readUInt16BE(2);
+  if (cmd === CMD.CK) {
+    if (buf.length < 36) return null;
+    return {
+      cmd,
+      ssrc: buf.readUInt32BE(4),
+      count: buf.readUInt8(8),
+      ts: [buf.readBigUInt64BE(12), buf.readBigUInt64BE(20), buf.readBigUInt64BE(28)],
+    };
+  }
+  if (cmd === CMD.RS) {
+    if (buf.length < 12) return null;
+    return { cmd, ssrc: buf.readUInt32BE(4), seq: buf.readUInt16BE(8) };
+  }
+  if (cmd === CMD.IN || cmd === CMD.OK || cmd === CMD.NO || cmd === CMD.BY) {
+    if (buf.length < 16) return null;
+    let name = '';
+    if (buf.length > 16) {
+      const end = buf.indexOf(0, 16);
+      name = buf.toString('utf8', 16, end < 0 ? buf.length : end);
+    }
+    return { cmd, version: buf.readUInt32BE(4), token: buf.readUInt32BE(8), ssrc: buf.readUInt32BE(12), name };
+  }
+  return null;
+}
+
+/** Data bytes that follow a status byte (sysex is handled separately). */
+function dataLength(status) {
+  const hi = status & 0xf0;
+  if (hi === 0xc0 || hi === 0xd0) return 1;
+  if (hi < 0xf0) return 2;
+  if (status === 0xf1 || status === 0xf3) return 1;
+  if (status === 0xf2) return 2;
+  return 0;
+}
+
+/**
+ * The MIDI commands in one RTP-MIDI packet (RFC 6295 §3), as
+ * `{ status, data: [..] }` in order. Journal data is ignored: we only show
+ * what is happening, and a note lost on the wire is one Vista also missed.
+ */
+function parseRtpMidi(buf) {
+  if (buf.length < 13 || (buf[0] >> 6) !== 2) return null;
+  const cc = buf[0] & 0x0f;
+  const ext = Boolean(buf[0] & 0x10);
+  const seq = buf.readUInt16BE(2);
+  const ssrc = buf.readUInt32BE(8);
+  let off = 12 + cc * 4;
+  if (ext) {
+    if (buf.length < off + 4) return null;
+    off += 4 + buf.readUInt16BE(off + 2) * 4;
+  }
+  if (off >= buf.length) return null;
+  const header = buf[off];
+  const big = Boolean(header & 0x80);
+  const zero = Boolean(header & 0x20);
+  let len = header & 0x0f;
+  if (big) {
+    if (off + 1 >= buf.length) return null;
+    len = (len << 8) | buf[off + 1];
+    off += 2;
+  } else {
+    off += 1;
+  }
+  const end = Math.min(buf.length, off + len);
+  const messages = [];
+  let running = 0;
+  let first = true;
+  while (off < end) {
+    if (!first || zero) {
+      // Delta time: 1–4 octets, high bit means "more follow".
+      let n = 0;
+      while (off < end && (buf[off] & 0x80) && n < 3) { off++; n++; }
+      off++;
+      if (off >= end) break;
+    }
+    first = false;
+    let status = buf[off];
+    if (status & 0x80) {
+      off++;
+    } else if (running) {
+      status = running;
+    } else {
+      break; // data byte with nothing to run on: give up on this packet
+    }
+    if (status === 0xf0 || status === 0xf7) {
+      // A sysex, or a segment of one: runs to F7 (end), F0 (more follows) or F4 (cancelled).
+      const start = off;
+      while (off < end && buf[off] !== 0xf7 && buf[off] !== 0xf0 && buf[off] !== 0xf4) off++;
+      const data = Array.from(buf.subarray(start, off));
+      off++;
+      messages.push({ status, data });
+      running = 0;
+      continue;
+    }
+    if (status < 0xf0) running = status;
+    else if (status < 0xf8) running = 0; // system common cancels running status; realtime doesn't
+    const n = dataLength(status);
+    if (off + n > end) break;
+    messages.push({ status, data: Array.from(buf.subarray(off, off + n)) });
+    off += n;
+  }
+  return { seq, ssrc, messages };
+}
+
+/** `{ status, data }` → a plain event, or null for what nobody here cares about. */
+function describe(msg) {
+  const hi = msg.status & 0xf0;
+  const channel = (msg.status & 0x0f) + 1;
+  if (hi === 0x90 && msg.data[1] > 0) return { type: 'noteon', channel, note: msg.data[0], velocity: msg.data[1] };
+  if (hi === 0x80 || (hi === 0x90 && msg.data[1] === 0)) return { type: 'noteoff', channel, note: msg.data[0] };
+  if (hi === 0xc0) return { type: 'program', channel, program: msg.data[0] };
+  if (hi === 0xb0) return { type: 'cc', channel, controller: msg.data[0], value: msg.data[1] };
+  return null;
+}
+
+/* ── the session ─────────────────────────────────────────────────────── */
+
+class Session extends EventEmitter {
+  /**
+   * @param {{ name: string, port: number, log?: Function }} opts
+   * Events: 'midi' ({ participant, event }), 'change' (participants or
+   * listening changed), 'listening' (both ports bound).
+   */
+  constructor({ name, port, log }) {
+    super();
+    this.name = name || 'ProdDash';
+    this.port = port;
+    this.log = log || (() => {});
+    this.ssrc = randomU32();
+    this.now = makeClock();
+    this.control = null;
+    this.data = null;
+    this.participants = new Map(); // key → participant
+    this.invites = new Map();      // key "host:port" → outbound invitation
+    this.strangers = new Map();    // address → when we last told it we're not in its session
+    this.timers = new Set();
+    this.stopped = false;
+    this.error = '';
+  }
+
+  /**
+   * Open both ports. Resolves once both are bound — or once the first try
+   * failed, with `error` set. A port that is busy (our own previous session
+   * still closing after a config save, or another program) is retried every
+   * few seconds for as long as the session runs; 'listening' fires when it
+   * finally binds.
+   */
+  start() {
+    this.every(FEEDBACK_MS, () => this.sendFeedback());
+    this.every(5000, () => this.reap());
+    return new Promise((resolve) => {
+      let first = true;
+      const attempt = (delay) => this.later(delay, async () => {
+        const ok = await this.bind();
+        if (ok) {
+          this.error = '';
+          this.emit('listening');
+          this.emit('change');
+        } else {
+          this.emit('change');
+          attempt(first ? 250 : 3000);
+        }
+        if (first) { first = false; resolve(ok); }
+      });
+      attempt(0);
+    });
+  }
+
+  /** Bind control and data sockets together; on failure close both. */
+  bind() {
+    const open = (port, which) => new Promise((resolve) => {
+      const sock = dgram.createSocket('udp4');
+      const fail = (e) => {
+        try { sock.close(); } catch { /* not open */ }
+        resolve({ sock: null, port, e });
+      };
+      sock.once('error', fail);
+      sock.bind(port, () => {
+        sock.removeListener('error', fail);
+        sock.on('error', (e) => this.log(`socket error on ${port}: ${e.message}`));
+        sock.on('message', (buf, rinfo) => {
+          try { this.onPacket(buf, rinfo, which); } catch (e) { this.log(`bad packet from ${rinfo.address}: ${e.message}`); }
+        });
+        resolve({ sock, port });
+      });
+    });
+    return Promise.all([open(this.port, 'control'), open(this.port + 1, 'data')]).then(([c, d]) => {
+      if (this.stopped || !c.sock || !d.sock) {
+        for (const x of [c, d]) if (x.sock) { try { x.sock.close(); } catch { /* closed */ } }
+        const bad = !c.sock ? c : d;
+        if (bad.e) {
+          const msg = bad.e.code === 'EADDRINUSE'
+            ? `UDP port ${bad.port} is in use on this machine — pick another session port in /admin`
+            : `UDP port ${bad.port}: ${bad.e.message}`;
+          if (msg !== this.error) this.log(msg);
+          this.error = msg;
+        }
+        return false;
+      }
+      this.control = c.sock;
+      this.data = d.sock;
+      return true;
+    });
+  }
+
+  stop() {
+    this.stopped = true;
+    for (const t of this.timers) { clearTimeout(t); clearInterval(t); }
+    this.timers.clear();
+    const control = this.control;
+    const data = this.data;
+    const close = () => {
+      for (const s of [control, data]) { try { s && s.close(); } catch { /* closed */ } }
+    };
+    // Say goodbye, then close once the goodbyes have left (a config save
+    // re-inits straight away and wants these ports back).
+    const byes = [...this.participants.values()].filter((p) => p.connected);
+    let left = byes.length;
+    if (!control || !left) close();
+    else {
+      for (const p of byes) {
+        try {
+          control.send(sessionPacket(CMD.BY, p.token, this.ssrc), p.controlPort, p.address, () => { if (--left === 0) close(); });
+        } catch { if (--left === 0) close(); }
+      }
+    }
+    this.control = null;
+    this.data = null;
+    this.participants.clear();
+    this.invites.clear();
+  }
+
+  every(ms, fn) {
+    const t = setInterval(fn, ms);
+    t.unref?.();
+    this.timers.add(t);
+    return t;
+  }
+
+  later(ms, fn) {
+    const t = setTimeout(() => { this.timers.delete(t); if (!this.stopped) fn(); }, ms);
+    t.unref?.();
+    this.timers.add(t);
+    return t;
+  }
+
+  send(sock, buf, port, address) {
+    if (!sock || this.stopped) return;
+    try { sock.send(buf, port, address); } catch { /* socket closed */ }
+  }
+
+  /** Every participant, for display. */
+  list() {
+    return [...this.participants.values()].map((p) => ({
+      name: p.name,
+      address: p.address,
+      port: p.controlPort,
+      connected: p.connected,
+      outbound: p.outbound,
+      lastHeard: p.lastHeard || null,
+      since: p.since || null,
+    }));
+  }
+
+  /* — outbound invitations — */
+
+  /**
+   * Keep a connection to the session at host:port. Re-invites on its own
+   * whenever the connection drops. Returns the invitation's state object.
+   */
+  invite(host, port, label) {
+    const key = `${host}:${port}`;
+    if (this.invites.has(key)) return this.invites.get(key);
+    const inv = { key, host, port, label: label || host, address: '', token: 0, attempts: 0, stage: 'idle', error: '', timer: null };
+    this.invites.set(key, inv);
+    this.beginInvite(inv);
+    return inv;
+  }
+
+  beginInvite(inv) {
+    if (this.stopped || !this.invites.has(inv.key)) return;
+    dns.lookup(inv.host, { family: 4 }, (err, address) => {
+      if (this.stopped) return;
+      if (err) {
+        inv.error = `can't find ${inv.host}`;
+        inv.stage = 'idle';
+        this.emit('change');
+        this.later(REINVITE_MS, () => this.beginInvite(inv));
+        return;
+      }
+      inv.address = address;
+      // Already in a session with that machine (it invited us)? Nothing to do.
+      const existing = this.findByAddress(address, inv.port);
+      if (existing && existing.connected) {
+        existing.label = inv.label;
+        inv.stage = 'connected';
+        inv.error = '';
+        this.emit('change');
+        return;
+      }
+      inv.token = randomU32();
+      inv.attempts = 0;
+      inv.stage = 'control';
+      this.sendInvite(inv);
+    });
+  }
+
+  sendInvite(inv) {
+    if (this.stopped || !this.invites.has(inv.key)) return;
+    if (inv.stage !== 'control' && inv.stage !== 'data') return;
+    if (inv.attempts >= INVITE_ATTEMPTS) {
+      inv.error = inv.error || 'no answer';
+      inv.stage = 'idle';
+      this.emit('change');
+      this.later(REINVITE_MS, () => this.beginInvite(inv));
+      return;
+    }
+    inv.attempts++;
+    const sock = inv.stage === 'control' ? this.control : this.data;
+    const port = inv.stage === 'control' ? inv.port : inv.port + 1;
+    this.send(sock, sessionPacket(CMD.IN, inv.token, this.ssrc, this.name), port, inv.address);
+    clearTimeout(inv.timer);
+    inv.timer = this.later(INVITE_RETRY_MS, () => this.sendInvite(inv));
+  }
+
+  inviteFor(rinfo, token) {
+    for (const inv of this.invites.values()) {
+      if (inv.token === token && inv.address === rinfo.address) return inv;
+    }
+    return null;
+  }
+
+  findByAddress(address, controlPort) {
+    for (const p of this.participants.values()) {
+      if (p.address === address && (controlPort == null || p.controlPort === controlPort)) return p;
+    }
+    return null;
+  }
+
+  /* — packets in — */
+
+  onPacket(buf, rinfo, which) {
+    const s = parseSession(buf);
+    if (!s) {
+      if (which === 'data') this.onRtp(buf, rinfo);
+      return;
+    }
+    const sock = which === 'control' ? this.control : this.data;
+    switch (s.cmd) {
+      case CMD.IN: return this.onInvitation(s, rinfo, which, sock);
+      case CMD.OK: return this.onAccepted(s, rinfo, which);
+      case CMD.NO: return this.onRejected(s, rinfo);
+      case CMD.BY: return this.onBye(s, rinfo);
+      case CMD.CK: return this.onSync(s, rinfo);
+      default: return undefined; // RS from a peer: nothing for a listener to do
+    }
+  }
+
+  onInvitation(s, rinfo, which, sock) {
+    // We accept anyone: being in more sessions only means hearing more cues.
+    this.send(sock, sessionPacket(CMD.OK, s.token, this.ssrc, this.name), rinfo.port, rinfo.address);
+    const key = `in:${s.ssrc}`;
+    let p = this.participants.get(key);
+    if (which === 'control') {
+      if (!p) {
+        p = {
+          key, ssrc: s.ssrc, token: s.token, name: s.name || rinfo.address, label: '',
+          address: rinfo.address, controlPort: rinfo.port, dataPort: rinfo.port + 1,
+          outbound: false, connected: false, lastSeq: -1, fedBack: -1, lastHeard: Date.now(), since: 0,
+        };
+        this.participants.set(key, p);
+        this.log(`invited by "${p.name}" at ${rinfo.address}:${rinfo.port}`);
+      } else {
+        p.token = s.token;
+        p.controlPort = rinfo.port;
+        p.name = s.name || p.name;
+      }
+    } else if (p) {
+      p.dataPort = rinfo.port;
+      p.connected = true;
+      p.since = Date.now();
+      p.lastHeard = Date.now();
+      this.log(`in session with "${p.name}" (${p.address})`);
+      for (const inv of this.invites.values()) {
+        if (inv.address === p.address && inv.port === p.controlPort) {
+          p.label = inv.label;
+          inv.stage = 'connected';
+          inv.error = '';
+          clearTimeout(inv.timer);
+        }
+      }
+      this.emit('change');
+    }
+  }
+
+  onAccepted(s, rinfo, which) {
+    const inv = this.inviteFor(rinfo, s.token);
+    if (!inv) return;
+    clearTimeout(inv.timer);
+    if (which === 'control' && inv.stage === 'control') {
+      inv.stage = 'data';
+      inv.attempts = 0;
+      inv.remoteName = s.name;
+      this.sendInvite(inv);
+      return;
+    }
+    if (which === 'data' && inv.stage === 'data') {
+      const key = `out:${inv.key}`;
+      // Drop any stale record of the same remote before taking the new one.
+      for (const [k, q] of this.participants) if (q.ssrc === s.ssrc && k !== key) this.participants.delete(k);
+      const p = {
+        key, ssrc: s.ssrc, token: inv.token, name: inv.remoteName || s.name || inv.host, label: inv.label,
+        address: rinfo.address, controlPort: inv.port, dataPort: rinfo.port,
+        outbound: true, connected: true, lastSeq: -1, fedBack: -1,
+        lastHeard: Date.now(), lastSyncAnswer: Date.now(), since: Date.now(), syncs: 0,
+      };
+      this.participants.set(key, p);
+      inv.stage = 'connected';
+      inv.error = '';
+      this.log(`joined "${p.name}" at ${inv.host} (${rinfo.address}:${inv.port})`);
+      this.emit('change');
+      this.startSync(p, inv);
+    }
+  }
+
+  onRejected(s, rinfo) {
+    const inv = this.inviteFor(rinfo, s.token);
+    if (!inv) return;
+    clearTimeout(inv.timer);
+    inv.stage = 'idle';
+    inv.error = 'the session refused us — set "Who may connect" to Anyone in Audio MIDI Setup';
+    this.log(`${inv.host}: invitation refused`);
+    this.emit('change');
+    this.later(REINVITE_MS * 2, () => this.beginInvite(inv));
+  }
+
+  onBye(s, rinfo) {
+    for (const [k, p] of this.participants) {
+      if (p.ssrc === s.ssrc && p.address === rinfo.address) this.drop(k, 'left the session');
+    }
+  }
+
+  drop(key, why) {
+    const p = this.participants.get(key);
+    if (!p) return;
+    this.participants.delete(key);
+    clearInterval(p.syncTimer);
+    this.timers.delete(p.syncTimer);
+    this.log(`"${p.name}" ${why}`);
+    // If we were asked to keep this one, go and get it back.
+    for (const inv of this.invites.values()) {
+      if (inv.address === p.address && inv.port === p.controlPort && inv.stage === 'connected') {
+        inv.stage = 'idle';
+        inv.error = why;
+        this.later(p.outbound ? 1000 : REINVITE_MS, () => this.beginInvite(inv));
+      }
+    }
+    this.emit('change');
+  }
+
+  /* — clock sync — */
+
+  startSync(p) {
+    const tick = () => {
+      if (!this.participants.has(p.key)) return;
+      if (Date.now() - p.lastSyncAnswer > SYNC_TIMEOUT_MS) {
+        this.send(this.control, sessionPacket(CMD.BY, p.token, this.ssrc), p.controlPort, p.address);
+        this.drop(p.key, 'stopped answering');
+        return;
+      }
+      this.send(this.data, syncPacket(this.ssrc, 0, [this.now(), 0n, 0n]), p.dataPort, p.address);
+      p.syncs++;
+      if (p.syncs === 6) {
+        clearInterval(p.syncTimer);
+        this.timers.delete(p.syncTimer);
+        p.syncTimer = this.every(SYNC_MS, tick);
+      }
+    };
+    p.syncTimer = this.every(SYNC_FAST_MS, tick);
+    tick();
+  }
+
+  onSync(s, rinfo) {
+    const p = [...this.participants.values()].find((q) => q.ssrc === s.ssrc);
+    if (p) p.lastHeard = Date.now();
+    if (s.count === 0) {
+      this.send(this.data, syncPacket(this.ssrc, 1, [s.ts[0], this.now(), 0n]), rinfo.port, rinfo.address);
+    } else if (s.count === 1) {
+      if (p) p.lastSyncAnswer = Date.now();
+      this.send(this.data, syncPacket(this.ssrc, 2, [s.ts[0], s.ts[1], this.now()]), rinfo.port, rinfo.address);
+    }
+    // count 2 completes a sync someone else started; nothing to answer.
+  }
+
+  /** Drop inbound participants that have gone quiet (their machine slept or left without a BY). */
+  reap() {
+    const now = Date.now();
+    for (const [k, p] of this.participants) {
+      if (!p.outbound && now - (p.lastHeard || 0) > IDLE_MS) this.drop(k, 'went quiet');
+    }
+  }
+
+  sendFeedback() {
+    for (const p of this.participants.values()) {
+      if (!p.connected || p.lastSeq < 0 || p.lastSeq === p.fedBack) continue;
+      p.fedBack = p.lastSeq;
+      this.send(this.control, feedbackPacket(this.ssrc, p.lastSeq), p.controlPort, p.address);
+    }
+  }
+
+  /* — MIDI — */
+
+  onRtp(buf, rinfo) {
+    const pkt = parseRtpMidi(buf);
+    if (!pkt) return;
+    let p = [...this.participants.values()].find((q) => q.ssrc === pkt.ssrc && q.connected);
+    if (!p) {
+      // MIDI from someone not in a session with us (a stale session after our restart).
+      // Ask them to start over so the session comes back properly — once in a while, not per note.
+      const last = this.strangers.get(rinfo.address) || 0;
+      if (Date.now() - last > 5000) {
+        this.strangers.set(rinfo.address, Date.now());
+        this.send(this.control, sessionPacket(CMD.BY, 0, this.ssrc), rinfo.port - 1, rinfo.address);
+      }
+      return;
+    }
+    p.lastHeard = Date.now();
+    p.lastSeq = pkt.seq;
+    for (const m of pkt.messages) {
+      const event = describe(m);
+      if (event) this.emit('midi', { participant: p, event });
+    }
+  }
+}
+
+module.exports = {
+  Session,
+  parseRtpMidi,
+  parseSession,
+  describe,
+  sessionPacket,
+  syncPacket,
+  CMD,
+};

modules/vista-cues/server.js

@@ -0,0 +1,428 @@
+'use strict';
+
+/**
+ * Vista Cues — server part.
+ *
+ * Vista 3 cannot say what it is playing: its OSC is input-only and it sends
+ * no feedback. What it *does* have is a network MIDI session that
+ * ProPresenter and the tracks rig fire cue lists through. A session sends
+ * every message to every participant, so this module joins those sessions
+ * as one more participant (rtpmidi.js) and hears exactly what Vista hears.
+ * The admin's "Cue lists" sheet (mapping.js) turns each note into
+ * "Go on Walk-in", "Release Worship 1"…, and from those the module keeps
+ * which lists are live.
+ *
+ *   GET  /state   → { state }                     (instant paint)
+ *   GET  /stream  → SSE: `state` on every change
+ *   POST /clear   → forget which lists are live (when Vista was reset by hand)
+ *
+ * What the tile shows is what Vista was told, not what Vista confirmed: if
+ * Vista is closed or someone works the desk by hand, the two can differ.
+ */
+
+const fs = require('fs');
+const { spawn } = require('child_process');
+const { Session } = require('./rtpmidi');
+const { parseMapping, match, triggerLabel } = require('./mapping');
+
+const HEARTBEAT_MS = 15000;
+const LOG_MAX = 40;
+const DNS_SD = '/usr/bin/dns-sd';
+
+let current = null;
+
+function emptyState(extra = {}) {
+  return {
+    listening: false,
+    error: '',
+    sessionName: '',
+    port: null,
+    advertised: false,
+    sources: [],
+    current: null,
+    active: [],
+    log: [],
+    mappingErrors: [],
+    rules: 0,
+    now: Date.now(),
+    ...extra,
+  };
+}
+
+/**
+ * The wired network(s) MIDI must ride ("10.1.0.0/16, 10.2.0.0/16"). The Macs
+ * here are also on Wi-Fi and the Dante networks, and Bonjour lists each
+ * session once per network, so a sender typed or picked from the wrong copy
+ * works — until Wi-Fi hiccups mid-service. Returns [{ base, bits, text }];
+ * throws on a typo so the admin page says so at once.
+ */
+function parseNets(text) {
+  return String(text || '').split(/[\s,]+/).filter(Boolean).map((n) => {
+    const m = /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})(?:\/(\d{1,2}))?$/.exec(n);
+    const parts = m ? m.slice(1, 5).map(Number) : [];
+    const bits = m && m[5] !== undefined ? Number(m[5]) : 32;
+    if (!m || parts.some((x) => x > 255) || bits > 32) {
+      throw new Error(`Wired network: "${n}" is not a network like 10.1.0.0/16`);
+    }
+    return { base: ipNumber(parts.join('.')), bits, text: n };
+  });
+}
+
+function ipNumber(a) {
+  const m = /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/.exec(String(a || '').trim());
+  return m ? m.slice(1, 5).reduce((n, x) => n * 256 + Number(x), 0) : null;
+}
+
+/**
+ * Why an address is not on the wired network: '' when it is (or there is no
+ * rule), 'by name' for a host name (it resolves to whichever network answers
+ * first), 'not wired' for an address outside every wired network.
+ */
+function offNetwork(nets, address) {
+  if (!nets.length || !address) return '';
+  const v = ipNumber(address);
+  if (v === null) return 'by name';
+  if (address.startsWith('127.')) return '';
+  const span = (bits) => 2 ** (32 - bits);
+  return nets.some((n) => Math.floor(v / span(n.bits)) === Math.floor(n.base / span(n.bits))) ? '' : 'not wired';
+}
+
+function endpointOf(v) {
+  const ep = v && typeof v === 'object' ? v : {};
+  return { host: String(ep.host || '').trim(), port: Number(ep.port) || 5004 };
+}
+
+module.exports = {
+  init({ config, log }) {
+    const sessionName = String(config.sessionName || '').trim() || 'ProdDash Lighting';
+    const port = Math.round(Number(config.sessionPort)) || 5040;
+    const middleC = config.middleC === 'C4' ? 'C4' : 'C3';
+    const exclusive = config.exclusive === true;
+    const headTakesOver = config.headTakesOver !== false;
+    const { rules, errors: mappingErrors, groups } = parseMapping(config.cueLists, { middleC });
+    const nets = parseNets(config.wiredNetwork);
+    const netText = nets.map((n) => n.text).join(', ');
+    if (mappingErrors.length) {
+      for (const e of mappingErrors) log(`cue lists line ${e.line} skipped (${e.why}): ${e.text}`);
+    }
+
+    const senders = [
+      { label: String(config.source1Name || '').trim() || 'ProPresenter', ...endpointOf(config.source1) },
+      { label: String(config.source2Name || '').trim() || 'Tracks', ...endpointOf(config.source2) },
+      { label: String(config.source3Name || '').trim() || 'Companion', ...endpointOf(config.source3) },
+    ].filter((s) => s.host);
+
+    const streams = new Set();
+    const lists = new Map();   // lower-cased name → { name, group, state, firedAt, lastAt, lastAction, source, trigger, goes }
+    const history = [];        // newest first
+    let currentKey = '';
+    let lastFrame = '';
+    let advertiser = null;
+    let advertised = false;
+    let stopped = false;
+
+    if (port < 1024 || port > 65534) throw new Error('Session port must be between 1024 and 65534');
+
+    const session = new Session({ name: sessionName, port, log });
+    const invites = senders.map((s) => ({ ...s, inv: null }));
+
+    /* ── what Vista was told ─────────────────────────────────────── */
+
+    function sourceLabel(p) {
+      return p.label || p.name || p.address;
+    }
+
+    function record(entry) {
+      history.unshift({ at: Date.now(), ...entry });
+      if (history.length > LOG_MAX) history.length = LOG_MAX;
+    }
+
+    function apply(rule, source, trigger) {
+      const now = Date.now();
+      const key = rule.list.toLowerCase();
+      record({ action: rule.action, list: rule.list, group: rule.group, source, trigger, mapped: true });
+      if (rule.action === 'flash') return; // a momentary hit: in the log, never live
+      if (rule.action === 'releaseAll') {
+        lists.clear();
+        currentKey = '';
+        return;
+      }
+      if (rule.action === 'release') {
+        lists.delete(key);
+        if (currentKey === key) currentKey = newestKey();
+        return;
+      }
+      let l = lists.get(key);
+      if (rule.action === 'go') {
+        // A Go replaces the other lists of its group. A Go in the first group (the
+        // main scene) takes over everything, as Vista's last-takes-precedence does;
+        // and with "Go releases others" on, every Go does.
+        const takeover = exclusive || (headTakesOver && rule.group && rule.group === groups[0]);
+        for (const [k, other] of [...lists]) {
+          if (k !== key && (takeover || (rule.group && other.group === rule.group))) lists.delete(k);
+        }
+        if (!l) {
+          l = { name: rule.list, group: rule.group, state: 'active', firedAt: now, goes: 0 };
+          lists.set(key, l);
+        }
+        l.state = 'active';
+        l.goes++;
+        l.lastAt = now;
+        l.lastAction = 'go';
+        l.source = source;
+        l.trigger = trigger;
+        currentKey = key;
+        return;
+      }
+      // pause / back act on a list that is live; on one that isn't, they only go in the log.
+      if (!l) return;
+      l.lastAt = now;
+      l.lastAction = rule.action;
+      l.source = source;
+      l.trigger = trigger;
+      if (rule.action === 'pause') l.state = 'paused'; // the next Go resumes it
+      if (rule.action === 'back') { l.state = 'active'; l.goes = Math.max(1, l.goes - 1); }
+    }
+
+    function newestKey() {
+      let best = '';
+      let at = -1;
+      for (const [k, l] of lists) if (l.lastAt > at) { best = k; at = l.lastAt; }
+      return best;
+    }
+
+    session.on('midi', ({ participant, event }) => {
+      if (event.type !== 'noteon' && event.type !== 'program') return;
+      const source = sourceLabel(participant);
+      const trigger = triggerLabel(event, middleC);
+      const rule = match(rules, event);
+      if (rule) {
+        apply(rule, source, trigger);
+        log(`${source}: ${trigger} → ${rule.action}${rule.list ? ` ${rule.list}` : ''}`);
+      } else {
+        record({ action: '', list: '', source, trigger, mapped: false });
+      }
+      broadcast();
+    });
+    session.on('change', () => broadcast());
+    // Senders are joined once our ports are ours — straight away normally,
+    // or a moment later when a busy port frees up.
+    session.on('listening', () => {
+      if (stopped) return;
+      log(`session "${sessionName}" listening on UDP ${port}/${port + 1}`);
+      for (const s of invites) s.inv = session.invite(s.host, s.port, s.label);
+      if (!advertiser) advertise();
+    });
+
+    /* ── the view-model ──────────────────────────────────────────── */
+
+    function sources() {
+      const out = [];
+      const seen = new Set();
+      for (const s of invites) {
+        const inv = s.inv;
+        const p = inv && [...session.participants.values()].find((q) => q.connected && q.address === inv.address && q.controlPort === inv.port);
+        if (p) seen.add(p.key);
+        out.push({
+          label: s.label,
+          name: p ? p.name : '',
+          address: inv?.address || s.host,
+          // A name is judged as typed: it may resolve to Wi-Fi next time even if it is wired now.
+          offNetwork: offNetwork(nets, s.host) || offNetwork(nets, inv?.address || ''),
+          host: s.host,
+          configured: true,
+          connected: Boolean(p),
+          error: p ? '' : (inv?.error || ''),
+          lastHeard: p ? p.lastHeard : null,
+        });
+      }
+      for (const p of session.participants.values()) {
+        if (seen.has(p.key) || !p.connected) continue;
+        out.push({ label: p.label || p.name, name: p.name, address: p.address, offNetwork: offNetwork(nets, p.address), configured: false, connected: true, error: '', lastHeard: p.lastHeard });
+      }
+      return out;
+    }
+
+    function groupRank(l) {
+      const i = groups.indexOf(l.group);
+      return i < 0 ? groups.length : i;
+    }
+
+    function buildState() {
+      const live = [...lists.values()].sort((a, b) => b.lastAt - a.lastAt);
+      // The headline: the live list of the sheet's first group (the scene, say,
+      // rather than whichever colour changed last); without groups, the last Go.
+      const head = groups[0];
+      const cur = (head && live.find((l) => l.group === head))
+        || (currentKey ? lists.get(currentKey) : null)
+        || null;
+      return {
+        listening: Boolean(session.control),
+        error: session.error,
+        sessionName,
+        port,
+        advertised,
+        wiredNetwork: netText,
+        sources: sources(),
+        current: cur || null,
+        // The rest in sheet order of their group, so a colour chip stays put as it changes.
+        active: live.filter((l) => l !== cur).sort((a, b) => groupRank(a) - groupRank(b) || b.lastAt - a.lastAt),
+        headline: head || '',
+        log: history,
+        mappingErrors,
+        rules: rules.length,
+        now: Date.now(),
+      };
+    }
+
+    function send(payload) {
+      for (const res of streams) {
+        try { res.write(payload); } catch { streams.delete(res); }
+      }
+    }
+
+    function broadcast() {
+      if (stopped) return;
+      const state = buildState();
+      const { now, sources: src, ...rest } = state;
+      // lastHeard moves with every packet; leave it out of change detection.
+      const frame = JSON.stringify({ ...rest, src: src.map(({ lastHeard, ...s }) => s) });
+      if (frame === lastFrame) return;
+      lastFrame = frame;
+      send(`event: state\ndata: ${JSON.stringify(state)}\n\n`);
+    }
+
+    const keepalive = setInterval(() => send(': ping\n\n'), HEARTBEAT_MS);
+    keepalive.unref?.();
+
+    /* ── being found: Bonjour on macOS ───────────────────────────── */
+
+    // Advertising _apple-midi._udp puts us in Audio MIDI Setup's Directory on
+    // every Mac here, so a sender can add us with a click. macOS ships the
+    // dns-sd tool; we run it as a child and stop it with the module. Elsewhere
+    // nothing is advertised and senders are joined by address alone.
+    function advertise() {
+      if (stopped || config.advertise === false || process.platform !== 'darwin' || !fs.existsSync(DNS_SD)) return;
+      advertiser = spawn(DNS_SD, ['-R', sessionName, '_apple-midi._udp', 'local', String(port)], { stdio: ['ignore', 'pipe', 'pipe'] });
+      advertiser.stdout.on('data', (d) => {
+        if (/Name now registered and active/i.test(String(d)) && !advertised) {
+          advertised = true;
+          log(`advertised as "${sessionName}" on port ${port}`);
+          broadcast();
+        }
+      });
+      advertiser.stderr.on('data', () => {});
+      advertiser.on('error', (e) => { log(`dns-sd: ${e.message}`); advertiser = null; });
+      advertiser.on('exit', () => {
+        advertiser = null;
+        advertised = false;
+        if (!stopped) setTimeout(advertise, 5000).unref?.();
+      });
+    }
+
+    /* ── start ───────────────────────────────────────────────────── */
+
+    session.start().then(() => broadcast());
+
+    current = {
+      streams,
+      getState: buildState,
+      clear() {
+        lists.clear();
+        currentKey = '';
+        record({ action: 'cleared', list: '', source: 'Dashboard', trigger: '', mapped: true });
+        broadcast();
+      },
+    };
+
+    return {
+      stop() {
+        stopped = true;
+        clearInterval(keepalive);
+        session.stop();
+        if (advertiser) { try { advertiser.kill(); } catch { /* gone */ } advertiser = null; }
+        for (const res of streams) { try { res.end(); } catch { /* gone */ } }
+        streams.clear();
+        if (current && current.streams === streams) current = null;
+      },
+      health() {
+        if (session.error) return { status: 'error', message: session.error };
+        const src = sources();
+        // Off the wired network: still joined (the cues keep working), but said first and in red.
+        const off = src.filter((s) => s.offNetwork);
+        if (off.length) {
+          return {
+            status: 'error',
+            message: `${off.map((s) => (s.offNetwork === 'by name'
+              ? `${s.label} is set by name (${s.host})`
+              : `${s.label} ${s.configured ? `(${s.address})` : `at ${s.address}`} is not on the wired network`)).join(' · ')}: use its address on ${netText}`,
+          };
+        }
+        const on = src.filter((s) => s.connected);
+        const lines = mappingErrors.length ? ` · ${mappingErrors.length} cue-list line${mappingErrors.length === 1 ? '' : 's'} not understood (first: line ${mappingErrors[0].line})` : '';
+        const map = rules.length ? '' : ' · no cue lists mapped yet';
+        if (on.length) {
+          const off = src.filter((s) => !s.connected).map((s) => `${s.label} (${s.error || 'joining…'})`);
+          return {
+            status: off.length ? 'connecting' : 'ok',
+            message: `In session with ${on.map((s) => s.label).join(', ')}${off.length ? ` · waiting for ${off.join(', ')}` : ''}${map}${lines}`,
+          };
+        }
+        const where = advertised ? `advertised as "${sessionName}"` : `port ${port}`;
+        if (src.length) {
+          return { status: 'connecting', message: `Joining ${src.map((s) => `${s.label}${s.error ? ` (${s.error})` : ''}`).join(', ')} · ${where}${map}${lines}` };
+        }
+        return { status: 'connecting', message: `Waiting for a MIDI session to connect · ${where}${map}${lines}` };
+      },
+    };
+  },
+
+  // For the tests.
+  _offNetwork: (text, address) => offNetwork(parseNets(text), address),
+
+  /**
+   * One picker entry, so the ＋ menu gives Vista Cues a heading of its own —
+   * a module with no list sits headless under whichever module precedes it
+   * (Slack, alphabetically). Tiles added before this keep working: they
+   * have no variant and use the module's schema.
+   */
+  tiles() {
+    return [{
+      id: 'live',
+      name: 'Live cue lists',
+      description: 'The main scene Vista is running, the FX on top, and what fired them',
+      defaultSize: { w: 5, h: 4 },
+      minSize: { w: 2, h: 1 },
+    }];
+  },
+
+  routes() {
+    const sendJson = (res, code, body) => {
+      res.writeHead(code, { 'Content-Type': 'application/json; charset=utf-8', 'Cache-Control': 'no-store' });
+      res.end(JSON.stringify(body));
+    };
+    return {
+      'GET /state': (req, res) => sendJson(res, 200, { state: current ? current.getState() : emptyState() }),
+      'GET /stream': (req, res) => {
+        res.writeHead(200, {
+          'Content-Type': 'text/event-stream; charset=utf-8',
+          'Cache-Control': 'no-cache, no-transform',
+          Connection: 'keep-alive',
+          'X-Accel-Buffering': 'no',
+        });
+        res.write('retry: 3000\n\n');
+        res.write(`event: state\ndata: ${JSON.stringify(current ? current.getState() : emptyState())}\n\n`);
+        if (!current) return void res.end();
+        try { req.socket.setKeepAlive(true, 15000); } catch { /* gone */ }
+        const set = current.streams;
+        set.add(res);
+        req.on('close', () => set.delete(res));
+      },
+      'POST /clear': (req, res) => {
+        if (!current) return sendJson(res, 503, { error: 'Vista Cues is not running' });
+        current.clear();
+        return sendJson(res, 200, { ok: true });
+      },
+    };
+  },
+};

modules/vista-cues/style.css

@@ -0,0 +1,187 @@
+/* Vista Cues. Sizes hang off the tile (container units) times the tile's
+   own text scale (--vc-scale, the title bar's − / +), so one tile reads the
+   same at 3×2 on a laptop as at 8×5 on a wall. Colours are the shell's. */
+
+[data-module="vista-cues"] .vc-root {
+  --tone: var(--text);
+  --vc-scale: 1;
+  position: absolute;
+  inset: 0;
+  container-type: size;
+  overflow: hidden;
+  color: var(--text);
+  font-variant-numeric: tabular-nums;
+  user-select: none;
+  -webkit-user-select: none;
+}
+[data-module="vista-cues"] .vc-root[data-tone="ok"] { --tone: var(--accent); }
+[data-module="vista-cues"] .vc-root[data-tone="warn"] { --tone: var(--warn); }
+[data-module="vista-cues"] .vc-root[data-tone="muted"] { --tone: var(--muted); }
+[data-module="vista-cues"] [hidden] { display: none !important; }
+
+[data-module="vista-cues"] .vc-body {
+  position: absolute;
+  inset: 0;
+  display: flex;
+  flex-direction: column;
+  gap: calc(clamp(3px, 2.5cqh, 14px) * var(--vc-scale));
+  padding: clamp(6px, 3.5cqmin, 22px);
+  min-width: 0;
+}
+
+[data-module="vista-cues"] .vc-offline {
+  position: absolute;
+  top: clamp(4px, 3cqmin, 14px);
+  right: clamp(6px, 3.5cqmin, 22px);
+  z-index: 2;
+  font-size: calc(clamp(9px, 4.5cqmin, 14px) * var(--vc-scale));
+  font-weight: 700;
+  letter-spacing: 0.05em;
+  text-transform: uppercase;
+  color: var(--danger);
+}
+[data-module="vista-cues"] .vc-root.is-offline .vc-now { opacity: 0.45; filter: grayscale(0.6); }
+
+/* ── now ── */
+
+[data-module="vista-cues"] .vc-now {
+  flex: 0 0 auto;
+  min-width: 0;
+  padding-left: clamp(6px, 2cqmin, 14px);
+  border-left: clamp(3px, 1.1cqmin, 7px) solid var(--tone);
+}
+[data-module="vista-cues"] .vc-kicker {
+  display: flex;
+  align-items: center;
+  gap: 0.6em;
+  font-size: calc(clamp(10px, 5cqmin, 18px) * var(--vc-scale));
+  color: var(--muted);
+}
+[data-module="vista-cues"] .vc-pill {
+  padding: 0.05em 0.55em;
+  border-radius: 999px;
+  font-weight: 800;
+  letter-spacing: 0.06em;
+  text-transform: uppercase;
+  background: var(--tone);
+  color: var(--accent-text);
+}
+[data-module="vista-cues"] .vc-root[data-tone="warn"] .vc-pill { color: var(--bg); }
+[data-module="vista-cues"] .vc-ago { font-weight: 600; }
+[data-module="vista-cues"] .vc-name-wrap { min-width: 0; }
+[data-module="vista-cues"] .vc-name {
+  font-size: calc(clamp(16px, 14cqmin, 96px) * var(--vc-scale));
+  line-height: 1.12;
+  font-weight: 800;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  color: var(--text);
+}
+[data-module="vista-cues"] .vc-root[data-tone="muted"] .vc-name { color: var(--muted); font-weight: 600; }
+[data-module="vista-cues"] .vc-meta {
+  font-size: calc(clamp(10px, 4.6cqmin, 18px) * var(--vc-scale));
+  color: var(--muted);
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+[data-module="vista-cues"] .vc-meta:empty { display: none; }
+
+/* ── other live lists ── */
+
+[data-module="vista-cues"] .vc-active {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.4em;
+  flex: 0 0 auto;
+  font-size: calc(clamp(10px, 4.4cqmin, 17px) * var(--vc-scale));
+}
+[data-module="vista-cues"] .vc-chip {
+  display: inline-flex;
+  align-items: baseline;
+  gap: 0.5em;
+  max-width: 100%;
+  padding: 0.2em 0.65em;
+  border-radius: 6px;
+  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
+  background: color-mix(in srgb, var(--accent) 14%, transparent);
+}
+[data-module="vista-cues"] .vc-chip.is-paused {
+  border-color: color-mix(in srgb, var(--warn) 55%, transparent);
+  background: color-mix(in srgb, var(--warn) 14%, transparent);
+}
+[data-module="vista-cues"] .vc-chip-name {
+  font-weight: 700;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+[data-module="vista-cues"] .vc-chip-ago,
+[data-module="vista-cues"] .vc-chip-group { color: var(--muted); }
+[data-module="vista-cues"] .vc-chip-group { font-size: 0.8em; text-transform: uppercase; letter-spacing: 0.04em; }
+
+/* ── recent ── */
+
+[data-module="vista-cues"] .vc-recent {
+  flex: 1 1 auto;
+  min-height: 0;
+  overflow: hidden;
+  font-size: calc(clamp(10px, 3.8cqmin, 15px) * var(--vc-scale));
+  border-top: 1px solid var(--border);
+  padding-top: 0.35em;
+}
+[data-module="vista-cues"] .vc-row {
+  display: grid;
+  grid-template-columns: auto 6.2em minmax(0, 1fr) auto;
+  gap: 0.8em;
+  align-items: baseline;
+  padding: 0.12em 0;
+  white-space: nowrap;
+}
+[data-module="vista-cues"] .vc-row > span { overflow: hidden; text-overflow: ellipsis; }
+[data-module="vista-cues"] .vc-row-time,
+[data-module="vista-cues"] .vc-row-source { color: var(--muted); }
+[data-module="vista-cues"] .vc-row-action { font-weight: 700; color: var(--accent); }
+[data-module="vista-cues"] .vc-row[data-action="release"] .vc-row-action,
+[data-module="vista-cues"] .vc-row[data-action="releaseAll"] .vc-row-action,
+[data-module="vista-cues"] .vc-row[data-action="cleared"] .vc-row-action { color: var(--muted); }
+[data-module="vista-cues"] .vc-row[data-action="pause"] .vc-row-action { color: var(--warn); }
+[data-module="vista-cues"] .vc-row[data-action="flash"] .vc-row-action { color: var(--text); }
+[data-module="vista-cues"] .vc-row.is-unmapped { opacity: 0.6; }
+[data-module="vista-cues"] .vc-row.is-unmapped .vc-row-action { color: var(--muted); font-weight: 500; }
+
+@container (max-width: 300px) {
+  [data-module="vista-cues"] .vc-row { grid-template-columns: 5.2em minmax(0, 1fr); }
+  [data-module="vista-cues"] .vc-row-time,
+  [data-module="vista-cues"] .vc-row-source { display: none; }
+}
+@container (max-height: 140px) {
+  [data-module="vista-cues"] .vc-recent,
+  [data-module="vista-cues"] .vc-active { display: none; }
+}
+
+/* ── senders ── */
+
+[data-module="vista-cues"] .vc-sources {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.9em;
+  margin-top: auto;
+  font-size: calc(clamp(9px, 3.4cqmin, 13px) * var(--vc-scale));
+  color: var(--muted);
+}
+[data-module="vista-cues"] .vc-src { display: inline-flex; align-items: center; gap: 0.4em; }
+[data-module="vista-cues"] .vc-dot {
+  width: 0.65em;
+  height: 0.65em;
+  border-radius: 50%;
+  background: var(--danger);
+}
+[data-module="vista-cues"] .vc-src.is-on { color: var(--text); }
+[data-module="vista-cues"] .vc-src.is-on .vc-dot { background: var(--accent); }
+[data-module="vista-cues"] .vc-src.is-off-network { color: var(--danger); }
+[data-module="vista-cues"] .vc-src.is-off-network .vc-dot { background: var(--danger); }
+@container (max-height: 140px) {
+  [data-module="vista-cues"] .vc-sources { display: none; }
+}

modules/vista-cues/vista.test.js

@@ -0,0 +1,418 @@
+'use strict';
+
+/**
+ * Tests for Vista Cues.
+ *
+ *   node modules/vista-cues/vista.test.js
+ *
+ * Plain Node, no dependencies; exits non-zero on the first failure. Covers
+ * the cue-sheet parser, RTP-MIDI packet decoding, and a real session over
+ * loopback UDP: a fake sender invites the module's session, plays notes, and
+ * the server entry's state follows.
+ */
+
+const assert = require('assert');
+const dgram = require('dgram');
+const http = require('http');
+const { parseMapping, match, noteFromName } = require('./mapping');
+const { parseRtpMidi, describe, Session } = require('./rtpmidi');
+
+let passed = 0;
+async function test(name, fn) {
+  await fn();
+  passed++;
+  console.log(`  ok  ${name}`);
+}
+
+const wait = (ms) => new Promise((r) => setTimeout(r, ms));
+async function until(fn, ms = 3000) {
+  const end = Date.now() + ms;
+  while (Date.now() < end) {
+    if (fn()) return;
+    await wait(20);
+  }
+  throw new Error('timed out waiting');
+}
+
+/* ── a minimal independent sender ─────────────────────────────────────── */
+
+function sessionPkt(cmd, token, ssrc, name) {
+  const n = name == null ? Buffer.alloc(0) : Buffer.from(`${name}\0`);
+  const b = Buffer.alloc(16 + n.length);
+  b.writeUInt16BE(0xffff, 0);
+  b.write(cmd, 2, 'ascii');
+  b.writeUInt32BE(2, 4);
+  b.writeUInt32BE(token, 8);
+  b.writeUInt32BE(ssrc, 12);
+  n.copy(b, 16);
+  return b;
+}
+
+function rtp(ssrc, seq, midiBytes, flags = 0) {
+  const midi = Buffer.from(midiBytes);
+  const b = Buffer.alloc(13 + midi.length);
+  b[0] = 0x80;
+  b[1] = 0x61;
+  b.writeUInt16BE(seq, 2);
+  b.writeUInt32BE(1234, 4);
+  b.writeUInt32BE(ssrc, 8);
+  b[12] = flags | midi.length;
+  midi.copy(b, 13);
+  return b;
+}
+
+/** A sender that accepts invitations (like a Mac session) and can play notes. */
+async function fakeSender(port, name) {
+  const ssrc = 0x0badf00d;
+  const control = dgram.createSocket('udp4');
+  const data = dgram.createSocket('udp4');
+  const peers = [];
+  const syncs = [];
+  let seq = 100;
+  const handle = (sock, which) => (buf, r) => {
+    const cmd = buf.toString('ascii', 2, 4);
+    if (cmd === 'IN') {
+      sock.send(sessionPkt('OK', buf.readUInt32BE(8), ssrc, name), r.port, r.address);
+      if (which === 'data') peers.push({ address: r.address, port: r.port });
+    } else if (cmd === 'CK') {
+      syncs.push(buf[8]);
+      if (buf[8] === 0) {
+        const out = Buffer.from(buf);
+        out.writeUInt32BE(ssrc, 4);
+        out[8] = 1;
+        data.send(out, r.port, r.address);
+      }
+    }
+  };
+  control.on('message', handle(control, 'control'));
+  data.on('message', handle(data, 'data'));
+  await new Promise((r) => control.bind(port, '127.0.0.1', r));
+  await new Promise((r) => data.bind(port + 1, '127.0.0.1', r));
+  return {
+    peers,
+    syncs,
+    note(n, ch = 1) {
+      for (const p of peers) data.send(rtp(ssrc, seq++, [0x90 | (ch - 1), n, 100, 0x00, n, 0]), p.port, p.address);
+    },
+    close() { control.close(); data.close(); },
+  };
+}
+
+function freePort() {
+  return new Promise((resolve) => {
+    const s = dgram.createSocket('udp4');
+    s.bind(0, () => { const p = s.address().port; s.close(() => resolve(p)); });
+  });
+}
+
+/** Two adjacent free UDP ports, as a session needs. */
+async function freePair() {
+  for (let i = 0; i < 20; i++) {
+    const p = await freePort();
+    if (p > 65000) continue;
+    const ok = await new Promise((resolve) => {
+      const s = dgram.createSocket('udp4');
+      s.on('error', () => resolve(false));
+      s.bind(p + 1, () => s.close(() => resolve(true)));
+    });
+    if (ok) return p;
+  }
+  throw new Error('no free port pair');
+}
+
+(async () => {
+  console.log('mapping');
+
+  await test('reads the cue sheet forms', () => {
+    const { rules, errors } = parseMapping([
+      '# comment',
+      '60 = Walk-in',
+      'C3 - Worship 1',
+      '61 release Walk-in',
+      '62\tPause\tWorship 1',
+      '127 release all',
+      'ch2:64 = Message   # only on channel 2',
+      'pc5 = Baptism',
+      'note 66: Go: Song #2',
+      '67 = "Back Lights"',
+      'F#2 = Hazer',
+    ].join('\n'));
+    assert.deepStrictEqual(errors, []);
+    const brief = rules.map((r) => [r.channel, r.kind, r.number, r.action, r.list]);
+    assert.deepStrictEqual(brief, [
+      [null, 'note', 60, 'go', 'Walk-in'],
+      [null, 'note', 60, 'go', 'Worship 1'],
+      [null, 'note', 61, 'release', 'Walk-in'],
+      [null, 'note', 62, 'pause', 'Worship 1'],
+      [null, 'note', 127, 'releaseAll', ''],
+      [2, 'note', 64, 'go', 'Message'],
+      [null, 'program', 5, 'go', 'Baptism'],
+      [null, 'note', 66, 'go', 'Song #2'],
+      [null, 'note', 67, 'go', 'Back Lights'],
+      [null, 'note', 54, 'go', 'Hazer'],
+    ]);
+  });
+
+  await test('middle C naming', () => {
+    assert.strictEqual(noteFromName('C3', 'C3'), 60);
+    assert.strictEqual(noteFromName('C4', 'C4'), 60);
+    assert.strictEqual(noteFromName('C-2', 'C3'), 0);
+    assert.strictEqual(noteFromName('Bb3', 'C3'), 70);
+  });
+
+  await test('bad lines are reported, not fatal', () => {
+    const { rules, errors } = parseMapping('hello\n200 = Big\n61 release\nch17:3 = X\n60 = OK');
+    assert.strictEqual(rules.length, 1);
+    assert.deepStrictEqual(errors.map((e) => e.line), [1, 2, 3, 4]);
+  });
+
+  await test('groups and flashes', () => {
+    const { rules, groups, errors } = parseMapping('5 = Loose\n[Scene]\n0 = Pre Service\n8 = Message\n[Color]\n23 = Blue\n30 flash Blinder Flash 1\n[]\n9 = After');
+    assert.deepStrictEqual(errors, []);
+    assert.deepStrictEqual(groups, ['Scene', 'Color']);
+    assert.deepStrictEqual(rules.map((r) => [r.number, r.group, r.action]), [
+      [5, '', 'go'], [0, 'Scene', 'go'], [8, 'Scene', 'go'], [23, 'Color', 'go'], [30, 'Color', 'flash'], [9, '', 'go'],
+    ]);
+  });
+
+  await test('the NA cue sheet parses cleanly', () => {
+    const fs = require('fs');
+    const path = require('path');
+    const file = path.join(__dirname, '..', '..', '..', 'NA cue sheet.txt');
+    if (!fs.existsSync(file)) return;
+    const { rules, errors, groups } = parseMapping(fs.readFileSync(file, 'utf8'));
+    assert.deepStrictEqual(errors, []);
+    assert.strictEqual(rules.length, 53); // every note marked TRUE for NA in the sheet
+    assert.deepStrictEqual(groups, ['Main', 'Color', 'Blinders', 'Build', 'House', 'Lekos']);
+    assert.strictEqual(new Set(rules.map((r) => r.number)).size, rules.length);
+  });
+
+  await test('matching respects channel and kind', () => {
+    const { rules } = parseMapping('ch2:64 = Two\n64 = Any\npc64 = Program');
+    assert.strictEqual(match(rules, { type: 'noteon', channel: 2, note: 64 }).list, 'Two');
+    assert.strictEqual(match(rules, { type: 'noteon', channel: 1, note: 64 }).list, 'Any');
+    assert.strictEqual(match(rules, { type: 'program', channel: 1, program: 64 }).list, 'Program');
+    assert.strictEqual(match(rules, { type: 'noteoff', channel: 1, note: 64 }), null);
+  });
+
+  console.log('rtp-midi');
+
+  await test('note on + running-status note off', () => {
+    const p = parseRtpMidi(rtp(7, 9, [0x90, 60, 100, 0x00, 60, 0]));
+    assert.strictEqual(p.ssrc, 7);
+    assert.strictEqual(p.seq, 9);
+    assert.deepStrictEqual(p.messages.map(describe), [
+      { type: 'noteon', channel: 1, note: 60, velocity: 100 },
+      { type: 'noteoff', channel: 1, note: 60 },
+    ]);
+  });
+
+  await test('Z flag, multi-byte deltas, program change, sysex in between', () => {
+    const p = parseRtpMidi(rtp(7, 1, [0x05, 0xc2, 4, 0x81, 0x00, 0xf0, 0x7f, 0x01, 0xf7, 0x00, 0x93, 61, 9], 0x20));
+    assert.deepStrictEqual(p.messages.map(describe).filter(Boolean), [
+      { type: 'program', channel: 3, program: 4 },
+      { type: 'noteon', channel: 4, note: 61, velocity: 9 },
+    ]);
+  });
+
+  await test('journal bytes after the command section are ignored', () => {
+    const b = Buffer.concat([rtp(7, 1, [0x90, 62, 1], 0x40), Buffer.from([0x80, 0x00, 0x05, 0x01, 0x02])]);
+    assert.deepStrictEqual(parseRtpMidi(b).messages.map(describe), [{ type: 'noteon', channel: 1, note: 62, velocity: 1 }]);
+  });
+
+  console.log('session');
+
+  await test('invites a sender, keeps sync, and hears its notes', async () => {
+    const senderPort = await freePair();
+    const sender = await fakeSender(senderPort, 'Fake PP');
+    const port = await freePair();
+    const s = new Session({ name: 'Test', port });
+    assert.ok(await s.start());
+    const heard = [];
+    s.on('midi', ({ participant, event }) => heard.push([participant.label, event.type, event.note]));
+    s.invite('127.0.0.1', senderPort, 'ProPresenter');
+    await until(() => s.list().some((p) => p.connected));
+    await until(() => sender.syncs.includes(2)); // we answered its count-1 with a count-2
+    sender.note(60);
+    await until(() => heard.length >= 2);
+    assert.deepStrictEqual(heard, [['ProPresenter', 'noteon', 60], ['ProPresenter', 'noteoff', 60]]);
+    s.stop();
+    sender.close();
+    await wait(80);
+  });
+
+  await test('a config save re-inits on the same port straight away', async () => {
+    const senderPort = await freePair();
+    const sender = await fakeSender(senderPort, 'Fake PP');
+    const port = await freePair();
+    const mod = require('./server');
+    const config = { sessionPort: port, advertise: false, source1: { host: '127.0.0.1', port: senderPort } };
+    let handle = mod.init({ config, log: () => {} });
+    await until(() => handle.health().status === 'ok');
+    handle.stop();
+    handle = mod.init({ config, log: () => {} }); // what the shell does on save: stop(), then init()
+    await until(() => handle.health().status === 'ok');
+    handle.stop();
+    sender.close();
+    await wait(80);
+  });
+
+  await test('a port taken by someone else is reported, then taken once free', async () => {
+    const port = await freePair();
+    const squatter = dgram.createSocket('udp4');
+    await new Promise((r) => squatter.bind(port + 1, r));
+    const s = new Session({ name: 'Test', port });
+    let listening = false;
+    s.on('listening', () => { listening = true; });
+    assert.strictEqual(await s.start(), false);
+    assert.match(s.error, /in use/);
+    squatter.close();
+    await until(() => listening, 5000);
+    assert.strictEqual(s.error, '');
+    s.stop();
+  });
+
+  await test('server entry: notes become live cue lists, over HTTP', async () => {
+    const senderPort = await freePair();
+    const sender = await fakeSender(senderPort, 'Fake PP');
+    const port = await freePair();
+    const mod = require('./server');
+    const handle = mod.init({
+      config: {
+        sessionPort: port,
+        advertise: false,
+        source1Name: 'ProPresenter',
+        source1: { host: '127.0.0.1', port: senderPort },
+        cueLists: '60 = Walk-in\n61 = Worship 1\n70 release Walk-in\n127 release all',
+      },
+      log: () => {},
+    });
+    const routes = mod.routes({});
+    const server = http.createServer((req, res) => {
+      const r = routes[`${req.method} ${req.url}`];
+      if (r) r(req, res); else { res.writeHead(404); res.end(); }
+    });
+    await new Promise((r) => server.listen(0, '127.0.0.1', r));
+    const get = async (path, method = 'GET') => {
+      const res = await fetch(`http://127.0.0.1:${server.address().port}${path}`, { method });
+      return res.json();
+    };
+    const state = async () => (await get('/state')).state;
+
+    await until(() => sender.peers.length > 0);
+    await until(() => handle.health().status === 'ok');
+    sender.note(60);
+    await wait(100);
+    sender.note(61);
+    await wait(100);
+    let st = await state();
+    assert.strictEqual(st.current.name, 'Worship 1');
+    assert.deepStrictEqual(st.active.map((l) => l.name), ['Walk-in']);
+    assert.strictEqual(st.current.source, 'ProPresenter');
+    assert.strictEqual(st.sources[0].connected, true);
+
+    sender.note(70);
+    sender.note(99); // unmapped
+    await wait(150);
+    st = await state();
+    assert.deepStrictEqual(st.active, []);
+    assert.strictEqual(st.log[0].mapped, false);
+    assert.match(st.log[0].trigger, /Note 99/);
+
+    sender.note(127);
+    await wait(100);
+    st = await state();
+    assert.strictEqual(st.current, null);
+
+    sender.note(60);
+    await wait(100);
+    await get('/clear', 'POST');
+    st = await state();
+    assert.strictEqual(st.current, null);
+    assert.strictEqual(st.log[0].action, 'cleared');
+    handle.stop();
+
+    // Groups: a Go replaces its group's live list; the first group is the headline; flashes stay out.
+    const h2 = mod.init({
+      config: {
+        sessionPort: port, advertise: false, source1: { host: '127.0.0.1', port: senderPort },
+        cueLists: '[Scene]\n0 = Pre Service\n8 = Message\n[Color]\n22 = Red\n23 = Blue\n30 flash Blinder Flash 1',
+      },
+      log: () => {},
+    });
+    await until(() => h2.health().status === 'ok');
+    for (const n of [0, 22, 23, 30]) { sender.note(n); await wait(60); }
+    await wait(100);
+    st = await state();
+    assert.strictEqual(st.current.name, 'Pre Service');
+    assert.deepStrictEqual(st.active.map((l) => [l.group, l.name]), [['Color', 'Blue']]); // Blue replaced Red
+    assert.strictEqual(st.log[0].action, 'flash');
+    sender.note(8); // a new main scene takes over the look…
+    await wait(100);
+    st = await state();
+    assert.strictEqual(st.current.name, 'Message');
+    assert.deepStrictEqual(st.active, []);
+    sender.note(22); // …and FX fired after it layer on top again
+    await wait(100);
+    st = await state();
+    assert.deepStrictEqual(st.active.map((l) => l.name), ['Red']);
+    h2.stop();
+
+    server.close();
+    sender.close();
+    await wait(80);
+  });
+
+  await test('wired network: addresses outside it, and names, are flagged', () => {
+    const mod = require('./server');
+    const off = mod._offNetwork;
+    assert.strictEqual(off('', '10.6.9.193'), '');                          // no rule: any network
+    assert.strictEqual(off('10.1.0.0/16', '10.1.3.227'), '');
+    assert.strictEqual(off('10.1.0.0/16', '10.6.9.193'), 'not wired');      // Wi-Fi
+    assert.strictEqual(off('10.1.0.0/16', '169.254.12.3'), 'not wired');    // Dante
+    assert.strictEqual(off('10.1.0.0/16', 'NA-Tracks.local'), 'by name');
+    assert.strictEqual(off('10.1.0.0/16', '127.0.0.1'), '');                // Companion on this machine
+    assert.strictEqual(off('10.1.0.0/16, 10.6.0.0/20', '10.6.9.193'), '');  // several
+    assert.strictEqual(off('10.1.3.227', '10.1.3.227'), '');                // a single address
+    assert.throws(() => off('wifi', '10.1.3.227'), /not a network like 10\.1\.0\.0\/16/);
+    assert.throws(() => off('10.1.0.0/40', '10.1.3.227'), /not a network/);
+  });
+
+  await test('server entry: a sender off the wired network still joins, and says so', async () => {
+    const senderPort = await freePair();
+    const sender = await fakeSender(senderPort, 'Fake Tracks');
+    const port = await freePair();
+    const mod = require('./server');
+    assert.throws(() => mod.init({ config: { sessionPort: port, advertise: false, wiredNetwork: '10.1/16' }, log: () => {} }), /Wired network/);
+    const handle = mod.init({
+      config: {
+        sessionPort: port,
+        advertise: false,
+        wiredNetwork: '10.1.0.0/16',
+        source2Name: 'Tracks',
+        source2: { host: 'localhost', port: senderPort },   // a name: it may resolve to Wi-Fi next time
+        cueLists: '60 = Walk-in',
+      },
+      log: () => {},
+    });
+    await until(() => sender.peers.length > 0);                       // joined all the same
+    const h = handle.health();
+    assert.strictEqual(h.status, 'error');
+    assert.match(h.message, /^Tracks is set by name \(localhost\): use its address on 10\.1\.0\.0\/16$/);
+    const routes = mod.routes({});
+    let body = '';
+    await new Promise((r) => routes['GET /state']({}, { writeHead() {}, end(b) { body = b; r(); } }));
+    const st = JSON.parse(body).state;
+    assert.strictEqual(st.wiredNetwork, '10.1.0.0/16');
+    assert.strictEqual(st.sources[0].offNetwork, 'by name');
+    handle.stop();
+    sender.close();
+    await wait(80);
+  });
+
+  console.log(`\n${passed} passed`);
+  process.exit(0);
+})().catch((e) => {
+  console.error(e);
+  process.exit(1);
+});

package.json

@@ -1,6 +1,6 @@
 {
   "name": "proddash",
-  "version": "1.11.0",
+  "version": "1.13.0",
   "private": true,
   "description": "Modular production dashboard for Waters Church \u2014 zero-dependency Node server + vanilla client",
   "license": "UNLICENSED",

public/admin/admin.css

@@ -648,3 +648,55 @@ details.admin-fold > summary.admin-fold-title:hover { color: var(--accent); }
   gap: 8px;
   margin-left: auto;
 }
+
+/* an orderable multiselect (manifest `"orderable": true`): not a ticklist but
+   a list built on purpose — the picks, numbered, each with a nudge either way
+   and a way out, over a dropdown holding whatever is left to add. Their
+   position is the setting, so it has to be visible and movable. */
+.multiselect-row.is-picked {
+  gap: 6px;
+  cursor: default;
+  padding: 4px 7px;
+  background: var(--bg);
+  border: 1px solid var(--border);
+  border-radius: 7px;
+}
+.multiselect-add {
+  width: 100%;
+  margin-top: 2px;
+  padding: 7px 9px;
+  font-size: 13px;
+  font-family: inherit;
+  color: var(--text);
+  background: var(--bg);
+  border: 1px solid var(--border);
+  border-radius: 7px;
+  cursor: pointer;
+}
+.multiselect-add:focus { outline: none; border-color: var(--accent); }
+.multiselect-add:disabled { color: var(--muted); cursor: default; }
+.multiselect-rank {
+  flex: none;
+  min-width: 16px;
+  font-size: 11px;
+  font-weight: 700;
+  font-variant-numeric: tabular-nums;
+  text-align: right;
+  color: var(--accent);
+}
+.multiselect-row .switch-label { flex: 1; min-width: 0; }
+.multiselect-move {
+  flex: none;
+  width: 20px;
+  height: 20px;
+  padding: 0;
+  line-height: 1;
+  font-size: 9px;
+  color: var(--muted);
+  background: var(--bg);
+  border: 1px solid var(--border);
+  border-radius: 5px;
+  cursor: pointer;
+}
+.multiselect-move:hover:not(:disabled) { color: var(--text); border-color: var(--accent); }
+.multiselect-move:disabled { opacity: 0.3; cursor: default; }

public/admin/admin.js

@@ -333,15 +333,31 @@ function fieldFor(key, spec, value, passwordSet, moduleId) {
     span.textContent = label;
     const list = document.createElement('div');
     list.className = 'multiselect';
-    const chosen = new Set((Array.isArray(value) ? value : []).map(String).filter(Boolean));
+    // Kept as an ORDER, not a set: with `orderable` the position is the
+    // value (a priority), and even without it the saved order is what the
+    // shell stores, so losing it here would quietly reshuffle a module's list.
+    let chosen = (Array.isArray(value) ? value : []).map(String).filter(Boolean);
+    const orderable = Boolean(spec.orderable);
     const optValue = (opt) => String(typeof opt === 'object' ? opt.value : opt);
-    const fill = (options) => {
+    const optLabel = (opt) => String(typeof opt === 'object' ? (opt.label ?? opt.value) : opt);
+    const syncChosen = () => {
       for (const input of list.querySelectorAll('input')) {
-        if (input.checked) chosen.add(input.value);
-        else chosen.delete(input.value);
+        const v = input.value;
+        const at = chosen.indexOf(v);
+        if (input.checked && at < 0) chosen.push(v);        // newly on: lowest priority
+        else if (!input.checked && at >= 0) chosen.splice(at, 1);
       }
+    };
+    const move = (v, by) => {
+      const at = chosen.indexOf(v);
+      const to = at + by;
+      if (at < 0 || to < 0 || to >= chosen.length) return;
+      chosen.splice(to, 0, chosen.splice(at, 1)[0]);
+    };
+    const fill = (options) => {
+      syncChosen();
       list.innerHTML = '';
-      const missing = [...chosen].filter((v) => !options.some((opt) => optValue(opt) === v));
+      const missing = chosen.filter((v) => !options.some((opt) => optValue(opt) === v));
       const all = [...options, ...missing.map((v) => ({ value: v, label: `${v} (saved — not listed now)` }))];
       for (const opt of all) {
         const row = document.createElement('div');
@@ -351,13 +367,13 @@ function fieldFor(key, spec, value, passwordSet, moduleId) {
         const input = document.createElement('input');
         input.type = 'checkbox';
         input.value = optValue(opt);
-        input.checked = chosen.has(input.value);
+        input.checked = chosen.includes(input.value);
         const track = document.createElement('span');
         track.className = 'track';
         toggle.append(input, track);
         const text = document.createElement('span');
         text.className = 'switch-label';
-        text.textContent = String(typeof opt === 'object' ? (opt.label ?? opt.value) : opt);
+        text.textContent = optLabel(opt);
         row.append(toggle, text);
         row.addEventListener('click', (e) => {
           if (e.target === input) return;           // the box toggles itself
@@ -373,21 +389,114 @@ function fieldFor(key, spec, value, passwordSet, moduleId) {
         list.appendChild(none);
       }
     };
-    fill(Array.isArray(spec.options) ? spec.options : []);
+    // A list built on purpose, in an order that means something: the picks,
+    // each numbered and movable, and a dropdown holding everything not picked
+    // yet. Switches cannot carry an order — and an account with forty service
+    // types is forty switches to read past before finding the two that matter.
+    const fillPicked = (options) => {
+      list.innerHTML = '';
+      const byValue = new Map(options.map((opt) => [optValue(opt), opt]));
+      chosen.forEach((v, i) => {
+        const opt = byValue.get(v);
+        const row = document.createElement('div');
+        row.className = 'multiselect-row is-picked';
+        const rank = document.createElement('span');
+        rank.className = 'multiselect-rank';
+        rank.textContent = String(i + 1);
+        const text = document.createElement('span');
+        text.className = 'switch-label';
+        text.textContent = opt ? optLabel(opt) : `${v} (saved — not listed now)`;
+        const btn = (glyph, title, on, off) => {
+          const b = document.createElement('button');
+          b.type = 'button';
+          b.className = 'multiselect-move';
+          b.textContent = glyph;
+          b.title = title;
+          b.disabled = Boolean(off);
+          b.addEventListener('click', (e) => { e.preventDefault(); on(); });
+          return b;
+        };
+        row.append(
+          rank,
+          text,
+          btn('▲', 'Higher priority', () => { move(v, -1); changed(); }, i === 0),
+          btn('▼', 'Lower priority', () => { move(v, 1); changed(); }, i === chosen.length - 1),
+          btn('✕', 'Remove', () => { chosen.splice(chosen.indexOf(v), 1); changed(); }),
+        );
+        list.appendChild(row);
+      });
+      if (!chosen.length) {
+        const none = document.createElement('div');
+        none.className = 'multiselect-empty';
+        none.textContent = 'Nothing chosen yet.';
+        list.appendChild(none);
+      }
+      // The adder. Its own change bubbles to the field, which is what any
+      // dependent list listens for, so nothing extra is dispatched here.
+      const add = document.createElement('select');
+      add.className = 'multiselect-add';
+      const left = options.filter((opt) => !chosen.includes(optValue(opt)));
+      const head = document.createElement('option');
+      head.value = '';
+      head.textContent = left.length
+        ? (spec.addLabel || 'Add one…')
+        : (options.length ? 'Everything is added' : 'Nothing to choose from yet');
+      add.appendChild(head);
+      add.disabled = !left.length;
+      const groups = new Map();
+      for (const opt of left) {
+        const o = document.createElement('option');
+        o.value = optValue(opt);
+        o.textContent = optLabel(opt);
+        const g = typeof opt === 'object' && opt.group ? String(opt.group) : '';
+        if (!g) { add.appendChild(o); continue; }
+        if (!groups.has(g)) {
+          const og = document.createElement('optgroup');
+          og.label = g;
+          groups.set(g, og);
+          add.appendChild(og);
+        }
+        groups.get(g).appendChild(o);
+      }
+      add.addEventListener('change', () => {
+        if (!add.value) return;
+        chosen.push(add.value);       // added last: lowest priority
+        redraw();
+      });
+      list.appendChild(add);
+    };
+    // The options last drawn, so a reorder or a pick can redraw without asking
+    // the module for its list again.
+    let lastOptions = Array.isArray(spec.options) ? spec.options : [];
+    const redraw = () => (orderable ? fillPicked(lastOptions) : fill(lastOptions));
+    // Moving or removing changes the value without any control firing, so say so.
+    const changed = () => {
+      redraw();
+      list.dispatchEvent(new Event('change', { bubbles: true }));
+    };
+    redraw();
     if (spec.optionsRoute && moduleId) {
       refetch = (query) => {
         const qs = query && Object.keys(query).length ? `?${new URLSearchParams(query)}` : '';
         return fetch(`/api/modules/${encodeURIComponent(moduleId)}${spec.optionsRoute}${qs}`)
           .then((res) => (res.ok ? res.json() : null))
           .then((body) => {
-            if (Array.isArray(body?.options)) fill(body.options);
+            if (Array.isArray(body?.options)) {
+              lastOptions = body.options;
+              redraw();
+            }
           })
           .catch(() => { /* keep the static/saved options */ });
       };
       if (!spec.optionsDependsOn) refetch();
     }
     field.append(span, list);
-    read = () => [...list.querySelectorAll('input:checked')].map((input) => input.value);
+    read = () => {
+      // With `orderable` the list IS the value, in the order it is shown.
+      if (orderable) return [...chosen];
+      syncChosen();
+      return [...list.querySelectorAll('input:checked')].map((input) => input.value);
+    };
   } else if (type === 'color') {
     // A swatch picker; the value is always a #rrggbb string.
     field.classList.add('color-field');
@@ -660,6 +769,7 @@ function buildModuleCard(mod) {
     const readers = new Map();
     const controls = new Map(); // key → boolean/switch input (for showWhen)
     const selects = new Map(); // key → select element (optionsDependsOn sources)
+    const sources = new Map(); // key → { el, value() } for optionsDependsOn, whatever the type
     const dependents = []; // { field, when } to show/hide by a control's state
     const optionDeps = []; // { refetch, on } selects whose options follow another field
     const reloaders = []; // re-run every optionsRoute fetch (after a save changed what the module can list)
@@ -717,6 +827,15 @@ function buildModuleCard(mod) {
       readers.set(key, read);
       if (control) controls.set(key, control);
       if (selectEl) selects.set(key, selectEl);
+      // Anything can be the source of an optionsDependsOn — a multiselect
+      // hands over its values joined, which is what a module's route reads.
+      sources.set(key, {
+        el: selectEl || control || field,
+        value: () => {
+          const v = read();
+          return Array.isArray(v) ? v.join(',') : (typeof v === 'boolean' ? String(v) : String(v ?? ''));
+        },
+      });
       if (refetch && spec?.optionsDependsOn) optionDeps.push({ refetch, on: spec.optionsDependsOn });
       else if (refetch) reloaders.push(() => refetch());
       if (spec?.showWhen) dependents.push({ field, when: spec.showWhen });
@@ -741,9 +860,10 @@ function buildModuleCard(mod) {
     // value as a query parameter, now and whenever K changes (a plan list
     // that follows the chosen service type).
     for (const dep of optionDeps) {
-      const src = selects.get(dep.on) || controls.get(dep.on);
-      const run = () => dep.refetch({ [dep.on]: !src ? '' : (src.type === 'checkbox' ? String(src.checked) : src.value) });
-      if (src) src.addEventListener('change', run);
+      const src = sources.get(dep.on);
+      const run = () => dep.refetch({ [dep.on]: src ? src.value() : '' });
+      // A multiselect's switches are inside the field, so listen where they live.
+      if (src) src.el.addEventListener('change', run);
       reloaders.push(run);
       run();
     }

public/shell.js

@@ -188,6 +188,10 @@ function menuItem(label, onClick, { sub = '', danger = false, disabled = false,
 /* ── module registry ────────────────────────────────────────────────── */
 
 let registry = new Map(); // module id -> manifest from GET /api/modules
+/* The installed modules that are not running — disabled, or needing a newer
+   shell — id -> { id, name, reason }, from the same GET. Read for one thing:
+   to say why a tile one of them left in the layout is not drawn. */
+let inactiveModules = new Map();
 
 /** fetch that gives up after `ms`. A request the browser has queued behind
     held connections would otherwise pend forever, and so would anything
@@ -208,6 +212,7 @@ async function loadRegistry() {
     if (!res.ok) throw new Error('modules ' + res.status);
     const body = await res.json();
     registry = new Map((body.modules || []).map((m) => [m.id, m]));
+    inactiveModules = new Map((body.inactive || []).map((m) => [m.id, m]));
     return true;
   } catch {
     return false;
@@ -487,7 +492,9 @@ const GEAR_SVG = '<svg viewBox="0 0 90 90" fill="currentColor" aria-hidden="true
    registry offers them again: a Service timer waits for PCO Plan, a
    transcript for its channel. Never the module's default in their place —
    a wall of "All timers" where five different timers were is worse than
-   five gaps that fill themselves in. */
+   five gaps that fill themselves in. For the one that is not coming back
+   (a module stopped offering that kind of tile) the Layouts menu lists them
+   under Not shown, each with a ✕ — the only way to let its cells go. */
 
 function tileIsOffered(tile) {
   const man = registry.get(tile.module);
@@ -521,6 +528,7 @@ function reconcileOfferedTiles() {
   if (changed) rebuildDividers();
   scheduleOfferedRecheck();
   refreshEmptyState(); // the registry may have gone from nothing to something
+  repaintUnshown(); // a Not shown row goes the moment its tile is drawn again
 }
 
 /* A module's entry list can change without anyone saving admin config: PCO
@@ -540,10 +548,90 @@ function scheduleOfferedRecheck() {
   }, OFFERED_RECHECK_MS);
 }
 
+/** The tiles a layout holds that the board is not showing, each with what
+    to call it and, in a few words, why it is not drawn. */
+function unshownTiles() {
+  return tiles.filter((t) => !tileEls.has(t.id)).map((tile) => {
+    const man = registry.get(tile.module);
+    if (man) {
+      const title = tile.title || (tile.variant ? `${man.name} · ${tile.variant}` : man.name);
+      return { tile, title, reason: 'not offered right now' };
+    }
+    const off = inactiveModules.get(tile.module);
+    if (off) {
+      const reason = off.reason === 'incompatible' ? 'module needs a newer ProdDash' : 'module disabled';
+      return { tile, title: tile.title || off.name || tile.module, reason };
+    }
+    return { tile, title: tile.title || tile.module, reason: 'module not installed' };
+  });
+}
+
 /** The tiles a layout holds that the board is not showing, by name. */
 function unshownTileNames() {
-  return tiles.filter((t) => !tileEls.has(t.id))
-    .map((t) => t.title || registry.get(t.module)?.name || t.module);
+  return unshownTiles().map((u) => u.title);
+}
+
+/* Repaints the Layouts menu's Not shown section while the menu is open —
+   set by unshownSection(), called whenever tiles become offered or stop
+   being, so the list never lags the board behind it. */
+let repaintUnshown = () => {};
+
+/** The Layouts menu's Not shown section: one row per tile the layout holds
+    that the board is not drawing — its name, why in a word or two, and a ✕
+    that removes it — present only while there is one. A tile that waits for
+    its module (a Service timer before PCO Plan is up) is listed but can stay;
+    this exists for the one that will never be back, which would otherwise
+    hold its cells with no control anywhere to let them go. */
+function unshownSection() {
+  const wrap = document.createElement('div');
+  wrap.className = 'menu-unshown';
+  const signature = (list) => list.map((u) => `${u.tile.id}|${u.reason}`).join('\n');
+  let painted = '';
+  const paint = () => {
+    wrap.innerHTML = '';
+    const list = unshownTiles();
+    painted = signature(list);
+    wrap.hidden = !list.length;
+    if (!list.length) return;
+    const divider = document.createElement('div');
+    divider.className = 'menu-divider';
+    const title = document.createElement('div');
+    title.className = 'menu-title';
+    title.textContent = 'Not shown';
+    wrap.append(divider, title);
+    for (const { tile, title: name, reason } of list) {
+      const row = document.createElement('div');
+      row.className = 'menu-item menu-unshown-row';
+      const label = document.createElement('span');
+      label.textContent = name;
+      const sub = document.createElement('span');
+      sub.className = 'sub';
+      sub.textContent = reason;
+      label.appendChild(sub);
+      const remove = document.createElement('button');
+      remove.type = 'button';
+      remove.className = 'menu-x';
+      remove.setAttribute('data-tip', 'Remove');
+      remove.setAttribute('aria-label', `Remove ${name}`);
+      remove.innerHTML = CLOSE_SVG;
+      remove.addEventListener('click', (e) => {
+        // The row goes with the tile, so the click must not reach the
+        // document as one from outside the menu — the menu stays open
+        // to show the next row (or none), as the stepper and Alerts do.
+        e.stopPropagation();
+        removeTile(tile.id); // saves the layout and frees the cells, as a drawn tile's ✕ does
+        paint();
+      });
+      row.append(label, remove);
+      wrap.appendChild(row);
+    }
+  };
+  paint();
+  // Only when something changed: the registry is re-read every few seconds
+  // while a tile is folded away, and rows rebuilt under the pointer for
+  // nothing would lose the tooltip (and the click) the operator was on.
+  repaintUnshown = () => { if (wrap.isConnected && signature(unshownTiles()) !== painted) paint(); };
+  return wrap;
 }
 
 function buildTile(tile) {
@@ -2253,6 +2341,7 @@ wireDropdown('layout-btn', 'layout-menu', async (menu, stillOpen) => {
   // how one is arranged.
   menu.appendChild(gridStepper());
   menu.appendChild(alertsFold());
+  menu.appendChild(unshownSection()); // only while a tile the layout holds is not drawn
   const stepperDivider = document.createElement('div');
   stepperDivider.className = 'menu-divider';
   menu.appendChild(stepperDivider);
@@ -2344,7 +2433,7 @@ wireDropdown('layout-btn', 'layout-menu', async (menu, stillOpen) => {
         const count = `${tiles.length} tile${tiles.length === 1 ? '' : 's'}`;
         const gridNote = COLS !== gridBefore ? ` on a ${COLS}-column grid` : '';
         const note = unshown.length
-          ? `, ${unshown.length} not shown — ${unshown.join(', ')} ${unshown.length === 1 ? 'isn’t' : 'aren’t'} offered right now`
+          ? `, ${unshown.length} not shown — ${unshown.join(', ')} ${unshown.length === 1 ? 'isn’t' : 'aren’t'} offered right now; the Layouts menu can remove ${unshown.length === 1 ? 'it' : 'them'}`
           : '';
         toast(`Loaded “${l.name}”: ${count}${gridNote}${note}`, false, {
           ms: unshown.length ? 10000 : 7000,

public/style.css

@@ -368,6 +368,33 @@ body[data-alert="critical"] .tile.is-tinted {
   text-transform: uppercase;
 }
 
+/* the Layouts menu's Not shown rows: a tile the layout holds but the board
+   is not drawing, why in a word or two, and the ✕ that removes it */
+.menu-unshown[hidden] { display: none; }
+.menu-unshown-row { cursor: default; }
+.menu-unshown-row:hover { background: none; }
+.menu-unshown-row > span:first-child {
+  flex: 1;
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+.menu-x {
+  flex: none;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 22px;
+  height: 22px;
+  background: none;
+  border: none;
+  border-radius: 5px;
+  color: var(--muted);
+  cursor: pointer;
+}
+.menu-x:hover { background: var(--border); color: var(--danger); }
+.menu-x svg { width: 12px; height: 12px; display: block; }
+
 /* ── grid ──────────────────────────────────────────────────────────── */
 
 #gridwrap {

server.js

@@ -2336,8 +2336,17 @@ function handleRequest(req, res) {
 
   /* — shell API — */
   if (urlPath === '/api/modules' && req.method === 'GET') {
+    // Beside what dashboards may load: the installed modules that are not
+    // running, by id and name only, so a tile one of them left in a layout
+    // can say why it is not drawn ("module disabled") instead of guessing at
+    // "not installed". Nothing of their config travels with it.
+    const inactive = [...manifests.keys()].filter((id) => !isActive(id)).map((id) => ({
+      id,
+      name: String(manifests.get(id).name || id),
+      reason: isEnabled(id) ? 'incompatible' : 'disabled',
+    }));
     Promise.all([...manifests.keys()].filter(isActive).map(clientManifest))
-      .then((list) => sendJson(res, 200, { modules: list }))
+      .then((list) => sendJson(res, 200, { modules: list, inactive }))
       .catch((err) => {
         console.error('[proddash] /api/modules failed:', err);
         if (!res.headersSent) sendJson(res, 500, { error: 'Server error.' });

tools/overflow-tap-mock.js

@@ -0,0 +1,255 @@
+/**
+ * Mock ProPresenter slide status + mock Overflow Dashboard API, for developing
+ * the overflow-tap module without a live ProPresenter or an Overflow account.
+ *
+ *   node tools/overflow-tap-mock.js [--pp=1602] [--overflow=24720] [--step=4000]
+ *                                   [--login=<email>:<password>] [--expire=<seconds>]
+ *                                   [--fail-switch] [--slow] [--no-announcements]
+ *
+ * ProPresenter side (127.0.0.1:1602 by default) — the routes the module uses,
+ * with a service that advances every --step ms:
+ *   GET /version                      reachability probe
+ *   GET /v1/status/slide              { current: { uuid, text, notes }, next }, cycling
+ *                                     through slides whose notes carry keywords
+ *                                     ("give", "Next steps: connect", "prayer"),
+ *                                     slides with other notes ("forgiveness" —
+ *                                     must NOT fire "give"), a slide whose
+ *                                     keyword is not mapped on the account, and
+ *                                     a stretch with nothing live.
+ *   GET /v1/announcement/slide_index  the announcement layer: a three-slide
+ *                                     document whose index advances every third
+ *                                     step; its middle slide carries "events".
+ *   GET /v1/announcement/active       that document, groups → slides → notes.
+ *                                     --no-announcements answers 404 to both,
+ *                                     like an older ProPresenter.
+ *
+ * Overflow side (127.0.0.1:24720 by default; run ProdDash with
+ * OVERFLOW_TAP_API_BASE=http://127.0.0.1:24720) — the Dashboard API the
+ * module speaks (see modules/overflow-tap/overflow.js):
+ *   POST /nonprofit-dashboard/authentication/login/jwt      any non-empty email +
+ *        password signs in (--login=<email>:<password> demands that pair,
+ *        answering 401 otherwise); the token expires after --expire seconds
+ *        (3600 by default — set 20 to exercise the sign-in-again path). An
+ *        @overflow.co email gets a staff token with no nonprofit of its own.
+ *   GET  /nonprofit-dashboard/propresenter/nonprofits          staff: the nonprofits
+ *   POST /nonprofit-dashboard/propresenter/nonprofits/{id}/select
+ *   GET  /nonprofit-dashboard/propresenter/nonprofits/{id}/keywords   four mappings:
+ *        give → Give Online (every group), connect → Connect Card (Lobby),
+ *        prayer → Prayer Request (every group), events → Events (Lobby, Kids
+ *        Wing). "baptism" is deliberately unmapped.
+ *   POST /nonprofit-dashboard/propresenter/nonprofits/{id}/keywords?syncNonprofit=true
+ *        { keywords } — moves the groups and answers the updated list.
+ *        --fail-switch answers 500 instead, to exercise the failure path.
+ * Every signed-in call needs a Bearer token this mock issued and has not
+ * expired, or it answers 401. --slow adds a two-second delay to every Overflow
+ * answer.
+ *
+ * Every incoming request is logged so we can confirm what the module does.
+ */
+'use strict';
+
+const http = require('http');
+const crypto = require('crypto');
+
+const args = process.argv.slice(2);
+const opt = (name, dflt) => {
+  const a = args.find((x) => x.startsWith(`--${name}=`));
+  return a ? a.slice(name.length + 3) : dflt;
+};
+const PP_PORT = Number.parseInt(opt('pp', '1602'), 10);
+const OF_PORT = Number.parseInt(opt('overflow', '24720'), 10);
+const STEP_MS = Number.parseInt(opt('step', '4000'), 10);
+const LOGIN = opt('login', '');
+const EXPIRE_S = Number.parseInt(opt('expire', '3600'), 10);
+const FAIL_SWITCH = args.includes('--fail-switch');
+const SLOW = args.includes('--slow');
+const NO_ANN = args.includes('--no-announcements');
+
+function sendJson(res, code, body, extra = {}) {
+  res.writeHead(code, { 'Content-Type': 'application/json', ...extra });
+  res.end(body === undefined ? '' : JSON.stringify(body));
+}
+
+/* ── ProPresenter ────────────────────────────────────────────────── */
+
+const SLIDES = [
+  { uuid: 'S1', text: 'Welcome to Waters Church', notes: '' },
+  { uuid: 'S2', text: 'Give online', notes: 'give' },
+  { uuid: 'S3', text: 'Amazing grace, how sweet the sound', notes: 'Chorus x2' },
+  { uuid: 'S4', text: 'Fill out a Connect Card', notes: 'Next steps: connect' },
+  { uuid: 'S5', text: 'A sermon on forgiveness', notes: 'forgiveness — do not switch on this' },
+  { uuid: 'S6', text: 'Pray with us', notes: 'prayer' },
+  { uuid: 'S7', text: 'Baptism Sunday', notes: 'baptism' },
+  null, // nothing live
+  { uuid: 'S8', text: 'Give online (again)', notes: 'give' },
+  { uuid: 'S9', text: 'See you next week', notes: '' },
+];
+const ANNOUNCEMENT = {
+  id: { uuid: 'ANN-1', name: 'Announcements', index: 0 },
+  presentation_path: 'Announcements',
+  groups: [
+    { name: 'Loop', slides: [
+      { enabled: true, notes: '', text: 'Welcome', label: '' },
+      { enabled: true, notes: 'events', text: 'Upcoming events', label: '' },
+      { enabled: true, notes: '', text: 'Thanks for coming', label: '' },
+    ] },
+  ],
+};
+let step = 0;
+setInterval(() => { step += 1; }, STEP_MS).unref();
+const slideIdx = () => step % SLIDES.length;
+const annIdx = () => Math.floor(step / 3) % ANNOUNCEMENT.groups[0].slides.length;
+
+function slidePayload() {
+  const cur = SLIDES[slideIdx()];
+  const nxt = SLIDES[(slideIdx() + 1) % SLIDES.length];
+  return {
+    current: cur ? { uuid: cur.uuid, text: cur.text, notes: cur.notes } : null,
+    next: nxt ? { uuid: nxt.uuid, text: nxt.text, notes: nxt.notes } : null,
+  };
+}
+
+http.createServer((req, res) => {
+  const url = new URL(req.url, `http://${req.headers.host}`);
+  const p = url.pathname;
+  console.log(`[pp] ${req.method} ${p}`);
+  if (p === '/version') return sendJson(res, 200, { name: 'Overflow mock', platform: 'mac', host_description: 'ProPresenter 21 (mock)', api_version: 'v1' });
+  if (p === '/v1/status/slide') return sendJson(res, 200, slidePayload());
+  if (p === '/v1/status/layers') return sendJson(res, 200, { slide: Boolean(SLIDES[slideIdx()]), media: false, announcements: !NO_ANN });
+  if (p === '/v1/announcement/slide_index') {
+    if (NO_ANN) return sendJson(res, 404, { error: 'not found' });
+    return sendJson(res, 200, { announcement_index: { index: annIdx(), presentation_id: ANNOUNCEMENT.id } });
+  }
+  if (p === '/v1/announcement/active') {
+    if (NO_ANN) return sendJson(res, 404, { error: 'not found' });
+    return sendJson(res, 200, { announcement: ANNOUNCEMENT });
+  }
+  sendJson(res, 404, { error: 'not found' });
+}).listen(PP_PORT, '127.0.0.1', () => {
+  console.log(`[pp] mock ProPresenter on http://127.0.0.1:${PP_PORT} (slide every ${STEP_MS} ms${NO_ANN ? ', no announcement layer' : ''})`);
+});
+
+/* ── Overflow Dashboard ──────────────────────────────────────────── */
+
+const NONPROFIT = { id: '6710f34fd5061afeec3eab00', name: 'Waters Church (mock)', slug: 'waters-church' };
+const DESTINATIONS = {
+  give: { id: '6710f34fd5061afeec3eab01', name: 'Give Online' },
+  connect: { id: '6710f34fd5061afeec3eab02', name: 'Connect Card' },
+  prayer: { id: '6710f34fd5061afeec3eab03', name: 'Prayer Request' },
+  events: { id: '6710f34fd5061afeec3eab04', name: 'Events' },
+};
+const GROUPS = [
+  { id: '6710f34fd5061afeec3eab11', tapGroupName: 'Auditorium', destinationId: DESTINATIONS.events.id },
+  { id: '6710f34fd5061afeec3eab12', tapGroupName: 'Lobby', destinationId: DESTINATIONS.events.id },
+  { id: '6710f34fd5061afeec3eab13', tapGroupName: 'Kids Wing', destinationId: DESTINATIONS.connect.id },
+];
+const groupRef = (g) => ({ id: g.id, tapGroupName: g.tapGroupName });
+const KEYWORDS = [
+  { id: 'kw1', keyword: 'give', destinationId: DESTINATIONS.give.id, destinationName: DESTINATIONS.give.name, tapGroups: GROUPS.map(groupRef), active: true },
+  { id: 'kw2', keyword: 'connect', destinationId: DESTINATIONS.connect.id, destinationName: DESTINATIONS.connect.name, tapGroups: [groupRef(GROUPS[1])], active: true },
+  { id: 'kw3', keyword: 'prayer', destinationId: DESTINATIONS.prayer.id, destinationName: DESTINATIONS.prayer.name, tapGroups: GROUPS.map(groupRef), active: true },
+  { id: 'kw4', keyword: 'events', destinationId: DESTINATIONS.events.id, destinationName: DESTINATIONS.events.name, tapGroups: [groupRef(GROUPS[1]), groupRef(GROUPS[2])], active: true },
+];
+const stampedKeywords = () => KEYWORDS.map((k) => ({ ...k, nonprofitId: NONPROFIT.id, updatedAt: new Date().toISOString() }));
+
+const tokens = new Map(); // token → { email, exp, nonprofitId }
+
+function issueToken(email) {
+  const staff = email.toLowerCase().endsWith('@overflow.co');
+  const now = Math.floor(Date.now() / 1000);
+  const payload = {
+    id: 'user-1',
+    email,
+    fullName: 'Mock User',
+    role: staff ? 'overflowSupport' : 'orgAdmin',
+    permissions: [{ action: 'manage', subject: 'TAP' }],
+    nonprofits: staff ? [] : [{ id: NONPROFIT.id, name: NONPROFIT.name, slug: NONPROFIT.slug }],
+    iat: now,
+    exp: now + EXPIRE_S,
+  };
+  if (!staff) payload.nonprofitId = NONPROFIT.id;
+  const b64 = (o) => Buffer.from(JSON.stringify(o)).toString('base64url');
+  const token = `${b64({ alg: 'HS256', typ: 'JWT' })}.${b64(payload)}.${crypto.randomBytes(16).toString('base64url')}`;
+  tokens.set(token, { email, exp: payload.exp, nonprofitId: staff ? '' : NONPROFIT.id });
+  return token;
+}
+
+function bearer(req) {
+  const m = /^Bearer\s+(.+)$/.exec(String(req.headers.authorization || ''));
+  if (!m) return null;
+  const t = tokens.get(m[1]);
+  if (!t) return null;
+  if (Date.now() / 1000 >= t.exp) return null;
+  return t;
+}
+
+function readBody(req) {
+  return new Promise((resolve) => {
+    let body = '';
+    req.on('data', (c) => (body += c));
+    req.on('end', () => {
+      try { resolve(JSON.parse(body || '{}')); } catch { resolve(null); }
+    });
+  });
+}
+
+http.createServer(async (req, res) => {
+  const url = new URL(req.url, `http://${req.headers.host}`);
+  const p = url.pathname;
+  const answer = (code, body) => {
+    const go = () => sendJson(res, code, body);
+    if (SLOW) setTimeout(go, 2000);
+    else go();
+  };
+  console.log(`[overflow] ${req.method} ${p}${url.search}`);
+
+  if (req.method === 'POST' && p === '/nonprofit-dashboard/authentication/login/jwt') {
+    const body = await readBody(req);
+    const email = String((body && body.email) || '').trim();
+    const password = String((body && body.password) || '');
+    if (!email || !password) return answer(400, { statusCode: 400, message: 'email and password are required' });
+    if (LOGIN && `${email}:${password}` !== LOGIN) return answer(401, { statusCode: 401, message: 'Invalid email or password' });
+    console.log(`[overflow]   signed in ${email} (token expires in ${EXPIRE_S} s)`);
+    return answer(200, { token: issueToken(email) });
+  }
+
+  const session = bearer(req);
+  if (!session) return answer(401, { statusCode: 401, message: 'Unauthorized' });
+
+  if (req.method === 'GET' && p === '/nonprofit-dashboard/propresenter/nonprofits') {
+    return answer(200, { data: { nonprofits: [NONPROFIT] } });
+  }
+  const sel = /^\/nonprofit-dashboard\/propresenter\/nonprofits\/([^/]+)\/select$/.exec(p);
+  if (req.method === 'POST' && sel) {
+    if (sel[1] !== NONPROFIT.id) return answer(404, { statusCode: 404, message: 'Nonprofit not found' });
+    session.nonprofitId = NONPROFIT.id;
+    return answer(204);
+  }
+  const kw = /^\/nonprofit-dashboard\/propresenter\/nonprofits\/([^/]+)\/keywords$/.exec(p);
+  if (kw) {
+    if (kw[1] !== NONPROFIT.id || session.nonprofitId !== NONPROFIT.id) return answer(403, { statusCode: 403, message: 'Forbidden' });
+    if (req.method === 'GET') return answer(200, stampedKeywords());
+    if (req.method === 'POST') {
+      const body = await readBody(req);
+      const keys = body && Array.isArray(body.keywords) ? body.keywords.map((k) => String(k).toLowerCase().trim()) : [];
+      if (!keys.length) return answer(400, { statusCode: 400, message: 'keywords is required' });
+      if (FAIL_SWITCH) return answer(500, { statusCode: 500, message: 'Internal server error' });
+      for (const k of keys) {
+        const entry = KEYWORDS.find((x) => x.keyword === k);
+        if (!entry) {
+          console.log(`[overflow]   "${k}" is not a mapped keyword — ignored`);
+          continue;
+        }
+        for (const g of entry.tapGroups) {
+          const group = GROUPS.find((x) => x.id === g.id);
+          if (group) group.destinationId = entry.destinationId;
+        }
+        console.log(`[overflow]   ${entry.tapGroups.map((g) => g.tapGroupName).join(', ')} → ${entry.destinationName} (${k})`);
+      }
+      return answer(200, stampedKeywords());
+    }
+  }
+  answer(404, { statusCode: 404, message: `Cannot ${req.method} ${p}` });
+}).listen(OF_PORT, '127.0.0.1', () => {
+  console.log(`[overflow] mock Overflow Dashboard API on http://127.0.0.1:${OF_PORT}${FAIL_SWITCH ? ' (every switch answers 500)' : ''}${LOGIN ? ' (one login accepted)' : ''}${EXPIRE_S < 3600 ? ` (tokens expire after ${EXPIRE_S} s)` : ''}`);
+});

tools/pco-mock.js

@@ -8,6 +8,9 @@
  * Serves JSON:API shapes matching api.planningcenteronline.com/services/v2:
  *   GET /services/v2/folders                     nested folders (parent rel)
  *   GET /services/v2/folders/{id}
+ * Run: node tools/pco-mock.js [port] [--types N]   (--types pads the service
+ * type list out to N, for trying a picker against an account that has dozens.)
+ *
  *   GET /services/v2/service_types               every service type, with its
  *                                                parent folder relationship
  *   GET /services/v2/service_types/{id}
@@ -49,6 +52,10 @@
 const http = require('http');
 
 const PORT = Number.parseInt(process.argv[2] || '24700', 10);
+// --types N pads the list out to N with planless filler, for accounts that
+// carry dozens of them: enough to see whether a picker still works at that size.
+const TYPE_COUNT = Number.parseInt((process.argv.find((a) => a.startsWith('--types')) || '').split('=')[1]
+  || (process.argv[process.argv.indexOf('--types') + 1] || ''), 10);
 const bootedAt = Date.now();
 
 /* ── data ───────────────────────────────────────────────────────────── */
@@ -68,6 +75,18 @@ const SERVICE_TYPES = [
   { id: '1005', name: 'Youth Night', frequency: 'Every 2 weeks', parentId: '' },
 ];
 
+if (Number.isFinite(TYPE_COUNT) && TYPE_COUNT > SERVICE_TYPES.length) {
+  FOLDERS.push({ id: '300', name: 'Other Campuses', parentId: '' });
+  for (let i = SERVICE_TYPES.length; i < TYPE_COUNT; i += 1) {
+    SERVICE_TYPES.push({
+      id: String(2000 + i),
+      name: `Campus ${String.fromCharCode(65 + (i % 26))}${i >= 26 + 5 ? Math.floor(i / 26) : ''} Service`,
+      frequency: 'Every week',
+      parentId: i % 3 === 0 ? '300' : (i % 3 === 1 ? '110' : ''),
+    });
+  }
+}
+
 function iso(ms) {
   return new Date(ms).toISOString();
 }

tools/vista-midi-mock.js

@@ -0,0 +1,177 @@
+#!/usr/bin/env node
+'use strict';
+
+/**
+ * A stand-in for the ProPresenter Mac's network MIDI session, for the Vista
+ * Cues module: an RTP-MIDI (AppleMIDI) session that accepts invitations and
+ * plays a cue sheet's notes to everyone in it, the way ProPresenter's MIDI
+ * actions reach Vista.
+ *
+ *   node tools/vista-midi-mock.js 5104             # wait to be invited on UDP 5104/5105
+ *   node tools/vista-midi-mock.js 5104 --invite 127.0.0.1:5040
+ *                                                  # …or invite ProdDash yourself
+ *   --name "Tracks Laptop"   session name (default "ProPresenter Mock")
+ *   --every 4                seconds between cues (default 4)
+ *   --channel 1              MIDI channel (default 1)
+ *   --notes 2,23,8,30        play these notes in a loop instead of the built-in sheet's
+ *
+ * Point Vista Cues' "First sender" at 127.0.0.1 port 5104 and paste the
+ * sheet this prints into "Cue lists". Kill it to watch the tile go red;
+ * start it again to watch it come back.
+ *
+ * Written separately from the module's own rtpmidi.js on purpose, so a bug
+ * there is not mirrored here.
+ */
+
+const dgram = require('dgram');
+
+const argv = process.argv.slice(2);
+const opt = (name, dflt) => {
+  const i = argv.indexOf(`--${name}`);
+  return i >= 0 && argv[i + 1] ? argv[i + 1] : dflt;
+};
+const PORT = Number(argv.find((a) => /^\d+$/.test(a))) || 5104;
+const NAME = opt('name', 'ProPresenter Mock');
+const EVERY = Number(opt('every', 4)) * 1000;
+const CHANNEL = Math.min(16, Math.max(1, Number(opt('channel', 1)))) - 1;
+const INVITE = opt('invite', '');
+
+const SHEET = [
+  '60 = Walk-in',
+  '61 = Worship 1',
+  '62 = Worship 2',
+  '63 = Message',
+  '64 pause Worship 2',
+  '70 release Walk-in',
+  '71 release Worship 1',
+  '127 release all',
+];
+const NOTES = opt('notes', '');
+const SCRIPT = NOTES ? NOTES.split(',').map(Number).filter((n) => n >= 0 && n <= 127) : [60, 61, 70, 62, 64, 64, 71, 90, 63, 127];
+
+const ssrc = (Math.random() * 0xffffffff) >>> 0;
+const t0 = process.hrtime.bigint();
+const now = () => (process.hrtime.bigint() - t0) / 100000n;
+let seq = Math.floor(Math.random() * 0xffff);
+
+const peers = new Map(); // ssrc → { address, controlPort, dataPort, token, name, ready }
+
+function session(cmd, token, name) {
+  const n = name == null ? Buffer.alloc(0) : Buffer.from(`${name}\0`);
+  const b = Buffer.alloc(16 + n.length);
+  b.writeUInt16BE(0xffff, 0);
+  b.write(cmd, 2, 'ascii');
+  b.writeUInt32BE(2, 4);
+  b.writeUInt32BE(token >>> 0, 8);
+  b.writeUInt32BE(ssrc, 12);
+  n.copy(b, 16);
+  return b;
+}
+
+function ck(count, ts) {
+  const b = Buffer.alloc(36);
+  b.writeUInt16BE(0xffff, 0);
+  b.write('CK', 2, 'ascii');
+  b.writeUInt32BE(ssrc, 4);
+  b[8] = count;
+  ts.forEach((t, i) => b.writeBigUInt64BE(BigInt.asUintN(64, t), 12 + i * 8));
+  return b;
+}
+
+/** One RTP-MIDI packet: note on, then (delta 0, running status) the note off. */
+function notePacket(note) {
+  const midi = Buffer.from([0x90 | CHANNEL, note, 100, 0x00, note, 0x00]);
+  const b = Buffer.alloc(12 + 1 + midi.length);
+  b[0] = 0x80;
+  b[1] = 0x61;
+  seq = (seq + 1) & 0xffff;
+  b.writeUInt16BE(seq, 2);
+  b.writeUInt32BE(Number(now() & 0xffffffffn), 4);
+  b.writeUInt32BE(ssrc, 8);
+  b[12] = midi.length; // B=0 J=0 Z=0 P=0, LEN
+  midi.copy(b, 13);
+  return b;
+}
+
+const control = dgram.createSocket('udp4');
+const data = dgram.createSocket('udp4');
+
+function onPacket(sock, which) {
+  return (buf, r) => {
+    if (buf.length < 4 || buf.readUInt16BE(0) !== 0xffff) return;
+    const cmd = buf.toString('ascii', 2, 4);
+    if (cmd === 'IN') {
+      const token = buf.readUInt32BE(8);
+      const them = buf.readUInt32BE(12);
+      const end = buf.indexOf(0, 16);
+      const name = buf.toString('utf8', 16, end < 0 ? buf.length : end);
+      sock.send(session('OK', token, NAME), r.port, r.address);
+      const p = peers.get(them) || { address: r.address, token, name, ready: false };
+      if (which === 'control') p.controlPort = r.port;
+      else { p.dataPort = r.port; p.ready = true; console.log(`[mock] "${name}" joined from ${r.address}`); }
+      peers.set(them, p);
+    } else if (cmd === 'OK') {
+      // Our own invitation (--invite) was accepted.
+      const them = buf.readUInt32BE(12);
+      const end = buf.indexOf(0, 16);
+      const name = buf.toString('utf8', 16, end < 0 ? buf.length : end);
+      if (which === 'control') {
+        pending.stage = 'data';
+        data.send(session('IN', pending.token, NAME), pending.port + 1, pending.host);
+      } else {
+        pending.stage = 'done';
+        peers.set(them, { address: r.address, controlPort: pending.port, dataPort: r.port, token: pending.token, name, ready: true });
+        console.log(`[mock] joined "${name}" at ${r.address}:${pending.port}`);
+      }
+    } else if (cmd === 'BY') {
+      const them = buf.readUInt32BE(12);
+      if (peers.delete(them)) console.log('[mock] a participant left');
+    } else if (cmd === 'CK') {
+      const count = buf[8];
+      const ts = [buf.readBigUInt64BE(12), buf.readBigUInt64BE(20), buf.readBigUInt64BE(28)];
+      if (count === 0) data.send(ck(1, [ts[0], now(), 0n]), r.port, r.address);
+      else if (count === 1) data.send(ck(2, [ts[0], ts[1], now()]), r.port, r.address);
+    }
+  };
+}
+
+const pending = { stage: '', host: '', port: 0, token: 0 };
+
+control.on('message', onPacket(control, 'control'));
+data.on('message', onPacket(data, 'data'));
+control.bind(PORT, () => data.bind(PORT + 1, () => {
+  console.log(`[mock] session "${NAME}" on UDP ${PORT}/${PORT + 1}, channel ${CHANNEL + 1}`);
+  console.log('[mock] cue sheet for Vista Cues → Cue lists:\n  ' + SHEET.join('\n  '));
+  if (INVITE) {
+    const [host, port] = INVITE.split(':');
+    Object.assign(pending, { stage: 'control', host, port: Number(port) || 5040, token: (Math.random() * 0xffffffff) >>> 0 });
+    const tryInvite = () => {
+      if (pending.stage === 'done') return;
+      pending.stage = 'control';
+      control.send(session('IN', pending.token, NAME), pending.port, pending.host);
+      setTimeout(tryInvite, 2000);
+    };
+    tryInvite();
+  }
+}));
+
+// Clock sync, as the session that started it would do (harmless otherwise).
+setInterval(() => {
+  for (const p of peers.values()) if (p.ready) data.send(ck(0, [now(), 0n, 0n]), p.dataPort, p.address);
+}, 10000);
+
+let step = 0;
+setInterval(() => {
+  const ready = [...peers.values()].filter((p) => p.ready);
+  if (!ready.length) return;
+  const note = SCRIPT[step % SCRIPT.length];
+  step += 1;
+  const pkt = notePacket(note);
+  for (const p of ready) data.send(pkt, p.dataPort, p.address);
+  console.log(`[mock] note ${note} → ${ready.length} participant${ready.length === 1 ? '' : 's'}`);
+}, EVERY);
+
+process.on('SIGINT', () => {
+  for (const p of peers.values()) control.send(session('BY', p.token), p.controlPort, p.address);
+  setTimeout(() => process.exit(0), 100);
+});