The two knobs that keep the box alive: TTS_BATCH_SIZE=1 and
OPEN_NOTEBOOK_WORKER_MAX_TASKS=1. Upstream ships 5 x 5; frank-tts spawns one
~8 GiB, 8-thread engine process per synthesis request on a machine that also
serves two LLMs, so a five-way fan-out is a self-inflicted shutdown. The worker
knob is real, not decorative: the image's supervisord expands
${OPEN_NOTEBOOK_WORKER_MAX_TASKS:-5} into the worker command
(supervisord.conf:25).
Both ESPERANTO_* timeouts go above upstream's 300 s defaults, sized for CPU
synthesis (SHIM_TIMEOUT=600, LLAMA_TTS_THREADS=8) — one episode is dozens of
per-line /audio/speech calls and a timeout kills the episode, not the line.
API_URL is forced for the 5055 -> 5056 remap; SURREAL_URL addresses the database
by container name; CORS_ORIGINS is origin-form (scheme://host:port), the form
the app compares against. OPEN_NOTEBOOK_PASSWORD stays absent here on purpose:
the app treats a set-but-empty value as auth-on.
Secrets stay placeholders in the tracked file and in dankclaw/.env.example, which
lists SURREAL_PASSWORD rather than SURREAL_PASS — the deployer derives the
surreal CLI's spelling from it when it seeds, so the app and the database cannot
be handed different values.
Frank
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