docs(frank-tts): the voice stack is deployed, and the harness speaks through it
Six statements still claimed the endpoint did not exist: both vault descriptions, the two index.md bullets, the Open Notebook blocker, and the engine page deploy order that opened with "Nothing below has been run". All re-keyed to the deployed state, with the ledger the deploys printed: engine healthy 31 s after the build at 4.0 GiB resident, three voices warm, the ladder measured at 1883 ms then 1226-1283 ms (not the retired 6.2-8.0 s), and two voices rendering the same sentence into different bytes. Adds a The harness speech role section to the endpoint page with the three wiring laws measured the day of the flip: speech.voice is the forwarded key (tts.localVoice belongs to Kokoro), an explicit speech role has no fallback candidate, and models.yml loads at process start while config.yml is read live - so a session older than the frank-tts row fails exactly like a dead endpoint. Fresh-process proof: omp -p --tools tts saved 180524 bytes with voice=narrator1 while the facade logged the matching speech line.
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@@ -1,6 +1,6 @@
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---
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type: reference
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description: "frank-tts-engine is the arm A TTS engine on Dankclaw: qwentts.cpp's resident tts-server with the 1.7 B base talker, on a private podman bridge behind frank-tts — repo-owned, not yet deployed."
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description: "frank-tts-engine is the arm A TTS engine on Dankclaw: qwentts.cpp's resident tts-server with the 1.7 B base talker, on a private podman bridge behind frank-tts — deployed 2026-10-18, and it publishes no port on purpose."
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tags:
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- dankclaw
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- tts
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@@ -14,7 +14,7 @@ timestamp: 2026-10-18
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`frank-tts-engine` is the **arm A text-to-speech engine** on Dankclaw: [qwentts.cpp](https://github.com/ServeurpersoCom/qwentts.cpp)'s resident `tts-server` HTTP process, holding the Qwen3-TTS **1.7 B base talker (Q4_K_M)** and the **12 Hz tokenizer (Q8_0)** in RAM once and synthesizing from there. It listens on container port **8880** and is **deliberately not a fleet endpoint** — the endpoint consumers address is `frank-tts` on **7772**, which resolves voice names, re-encodes to mp3 and owns the timeout budget. This page is the engine runbook; the endpoint's contract lives with its own page.
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**Nothing here is deployed.** This page documents repo-owned configuration — the Quadlet unit and network, the image build, the weight fetcher, the boot warmer, the deployer path — and the measured facts those files were written against. No container, image, weight file or network exists on Dankclaw yet, and the engine publishes no port at all, so there is nothing for the homepage checker or a browser to reach. Deploying it is a deliberate next step, in the order at the bottom of this page.
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**Deployed 2026-10-18.** The chain ran in the order at the bottom of this page — fetch (1.4 GiB, byte + LFS oid verified, 18 s), image build against the pinned commit, unit + network install, container-health gate, warm pass — and the live state still reads the way this page describes it: unit `active` with no drop-ins, container healthy 31 s after the build, **4.0 GiB** resident on a host that kept 17 GiB available, `3 voice(s) registered and warm` in the journal, and no published port anywhere. Two things the first real boot taught: the warm hook's registration body must reach curl through a **file**, not an argument (Troubleshooting), and `STEP 3/13 RUN useradd` is the first honest proof of the image's non-root user.
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**Host:** Dankclaw (`192.168.0.143`), rootless Podman, user `dank` — **Port:** 8880, **never published** — **Network:** the private `systemd-frank-tts-engine` bridge (10.89.5.0/24) and no other — **Deployer:** `frank-tts-engine` — **Consumers:** `frank-tts` (7772) and, through it, every voice request in the fleet including [[Open Notebook]]'s podcast renders.
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@@ -96,25 +96,27 @@ The **façade** on 7772 is the pair's public surface and carries the probe. Note
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| `dankclaw/voiceservice/Containerfile.engine` | two-stage build of the pinned commit, proven cmake line, digest-pinned base, ships both scripts |
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| `dankclaw/voiceservice/tts-engine-start.sh` | image entrypoint (`/app/start.sh`): env → flags, refuses to boot without weights |
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| `dankclaw/voiceservice/tts-engine-warm.sh` | boot warmer (`/app/warm-voices.sh`): register from `reference.wav`, speak one sentence, report cold/warm |
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| `dankclaw/voiceservice/tts-engine-warm.sh` | boot warmer (`/app/warm-voices.sh`): register from `reference.wav` (body via a temp file), speak a fixed sentence twice, report cold/warm |
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| `dankclaw/voiceservice/quadlet/frank-tts-engine.container` | the unit: bridge only, no publish, env file, two read-only mounts, health probe, warm hook, `Restart=always` |
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| `dankclaw/voiceservice/quadlet/frank-tts-engine.network` | the private 10.89.5.0/24 bridge, with the subnet registry |
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| `scripts/frank-tts-engine.env` | paths and numbers only, with the thread law and the cold-voice law in its header |
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| `scripts/frank-tts-engine.env` | paths and numbers only, with the thread law and the registry law in its header |
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| `scripts/download-frank-tts-engine-qwentts.sh` | weight fetcher: no resume, byte count + LFS oid check, `--verify-only` |
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| `scripts/deploy-remote.sh` → `deploy_frank_tts_engine` | weights gate → build → quadlet → restart → container health → warm |
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| `tests/frank_tts_engine.bats` | the seam: generator output, entrypoint argv, warmer against a stub engine, planner and routing maps |
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## Deploy order (host steps, in order)
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## Deploy record (host steps, in the order they ran)
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Nothing below has been run. Steps 1–5 are this service; 6–7 are what unblocks the podcast pipeline.
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Run 2026-10-18 as `./scripts/deploy.sh dankclaw --service frank-tts-engine`, then
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`--service frank-tts`. Steps 1–6 are this service and the façade; only step 7 is
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still open.
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1. **Fetch the weights** — `scripts/download-frank-tts-engine-qwentts.sh` (1.4 GiB, byte + sha256 verified, idempotent; `--verify-only` is what the deployer calls).
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2. **Deploy the engine** — `./scripts/deploy.sh dankclaw --service frank-tts-engine` (`--service` is the only way to name one service; `deploy-remote.sh` is the remote half and takes `<target> <git-revision> [service]...`, so never call it by hand with a bare service name). Builds the image (needs github.com once), installs the unit and the network file, restarts, gates on the container's health status, then warms.
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2. **Deploy the engine** — `./scripts/deploy.sh dankclaw --service frank-tts-engine` (`--service` is the only way to name one service; `deploy-remote.sh` is the remote half and takes `<target> <git-revision> [service]...`, so never call it by hand with a bare service name). It builds the image (needs github.com once), installs the unit and the network file, gates on the container's health status, then warms.
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3. **Confirm the endpoint is alive** — `podman exec frank-tts-engine curl -fsS http://127.0.0.1:8880/health` → `{"status":"ok"}`, and `systemctl --user status frank-tts-engine` showing the unit `active` with the warm pass behind it.
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4. **Confirm the voices are known** — the warmer's journal lines must name every pack; once the façade is up, `curl http://127.0.0.1:7772/v1/audio/voices` is the authoritative list (the façade has exactly three routes: `/health`, `/v1/audio/voices`, `/v1/audio/speech`).
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5. **Prove the cold-voice law is paid at boot, not by a listener** — two identical synthesis requests for one voice, back to back, from inside the engine's namespace; the **second** must answer well under a second (`warm=` in the journal is already that number; the manual pair is the confirmation on the real artifact).
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6. Then the façade on **7772** (its own page): nothing may be published there until the engine answers, because open-notebook's render fails the moment the façade is up and the engine is not.
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7. Nothing on 7772 exists yet — that is why open-notebook's podcast render cannot run. See [[Open Notebook]].
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4. **Confirm the voices are known** — the warmer's journal lines name every pack, and once the façade is up `curl http://127.0.0.1:7772/v1/audio/voices` is the authoritative list (the façade has exactly three routes: `/health`, `/v1/audio/voices`, `/v1/audio/speech`).
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5. **Measure the ladder instead of trusting the trial** — two identical requests for one voice back to back. The design expected 6.2-8.0 s then 0.5 ms; the deployed container gave **1,883 ms then 1,226-1,283 ms**, so the hook buys ~0.6 s and stays only for the registry reason (law 1). The retired numbers must not be quoted.
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6. **Then the façade on 7772** (its own page), after the engine answered — that order is the whole point of step 6: publishing the façade in front of a dead engine would make every consumer fail at the first voice line.
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7. **Open:** [[Open Notebook]] is still not installed, so nothing renders a podcast yet; the voice leg it waits on now exists.
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## Troubleshooting
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