# chatterbox-fast stack tunables. Copy to `.env` on irv-ml1 before deploying.

# ── image / build ────────────────────────────────────────────────────
# Local image tag for this stack. Bump to force a fresh layer build.
CBF_TAG=v1

# Base image tag — the sibling `chatterbox` stack's local image, which
# carries the chatterbox lib + torch + fastapi. Must exist on irv-ml1
# (built by the `chatterbox` stack). Bump in lockstep if that rebuilds.
CBF_BASE_TAG=v1

# ── network ──────────────────────────────────────────────────────────
# Host port. Container listens on 8197 internally.
# Reserved on irv-ml1: 8188 ComfyUI, 8190 CosyVoice, 8191 Qwen3-TTS,
# 8192 IndexTTS-2, 8193 Kokoro, 8194 VibeVoice, 8196 Chatterbox,
# 8765 Parakeet. 8197 picked here.
CBF_PORT=8197

# Bind address. 0.0.0.0 exposes on all interfaces (incl. the WG tunnel
# interface 10.100.79.3); 127.0.0.1 restricts to local-only.
CBF_BIND=0.0.0.0

# ── runtime / GPU ────────────────────────────────────────────────────
# Device visible inside the container.
#   1 = RTX A6000 (the only viable placement; ~7 GB free after this stack).
#   0 = RTX 3090  — DOES NOT FIT: measured footprint is 5.34 GB (turbo loads
#       FP32, not the fp16 old notes assumed), and the 3090 idles ~20.5 GB used
#       (shared dev stack) leaving only ~3.8 GB free. Don't pin device 0.
CBF_GPU_DEVICES=1

# Default reference voice (a *.wav stem in CBF_REFERENCE_DIR, or an absolute
# path). The server prepares this at startup so first request is warm.
CBF_DEFAULT_VOICE=glados_25s

# Perf levers (Ampere-safe, free). Off with 0. Measured: they don't move TTFA
# (AR-decode-bound) but don't hurt; bf16 is deferred (fp32 model, no clean cast).
CBF_TF32=1
CBF_SDPA_FLASH=1

# ── persistent storage on the host ───────────────────────────────────
# Reference / predefined voice wavs (mounted at /refs). Shared with the
# `chatterbox` stack. `_`-prefixed files (bench/A-B scratch) are ignored.
CBF_REFERENCE_DIR=/worktank/chatterbox/reference_audio

# HuggingFace cache — Chatterbox-Turbo weights. Reused from the `chatterbox`
# stack (already populated, ~3.8 GB); no re-download. Excluded from restic.
CBF_CACHE_DIR=/worktank/chatterbox/cache