migrate to chatterbox

video/tts/pyproject.toml

@@ -1,41 +1,15 @@
 [project]
 name = "property-map-video-tts"
 version = "0.1.0"
-description = "Qwen3-TTS narration generator for the homepage demo video."
-requires-python = ">=3.12,<3.13"
-dependencies = [
-    "qwen-tts>=0.1.1",
-    # Host driver is CUDA 12.4 (see `nvidia-smi`). torch 2.7+ dropped cu124
-    # wheels, so we cap below that and pull the cu124 build from PyTorch's
-    # own index (configured below). torchaudio must match torch's CUDA build:
-    # the PyPI default ships a CUDA 13 binary that fails to load
-    # libcudart.so.13 on this host.
-    "torch>=2.5,<2.7",
-    "torchaudio>=2.5,<2.7",
-    "soundfile>=0.12",
-    "numpy>=1.26",
-]
-
-[project.optional-dependencies]
-# Flash-attention prebuilt wheel matched to torch 2.6 + cu12 + cp312, old
-# CXX ABI (PyTorch's cu124 wheel reports compiled_with_cxx11_abi() == False
-# and only exports the old-ABI c10::Error constructor). Pinned to
-# 2.7.4.post1 because 2.8.x's torch2.6/abiFALSE wheels were mislabelled:
-# they ship new-ABI symbols and fail to import. Building from source needs
-# nvcc which isn't on the host. Enable via `uv sync --extra gpu`; render.sh
-# does this automatically when nvidia-smi reports a GPU.
-gpu = [
-    "flash-attn @ https://github.com/Dao-AILab/flash-attention/releases/download/v2.7.4.post1/flash_attn-2.7.4.post1%2Bcu12torch2.6cxx11abiFALSE-cp312-cp312-linux_x86_64.whl ; sys_platform == 'linux' and platform_machine == 'x86_64'",
-]
+description = "Chatterbox narration generator + ffmpeg muxer for the homepage demo video."
+requires-python = ">=3.12"
+# Deliberately dependency-free. synth.py talks to the Chatterbox TTS server
+# over HTTP (urllib) and reads WAV headers with the stdlib `wave` module;
+# mux.py shells out to ffmpeg. The previous Qwen3-TTS implementation ran the
+# model in-process, which dragged in torch + torchaudio + a CUDA-matched
+# flash-attn wheel (~700MB of downloads, pinned to the host's driver version
+# and to cp312). Generating over HTTP moved all of that onto the server.
+dependencies = []
 
 [tool.uv]
-environments = ["sys_platform == 'linux' and python_version < '3.13'"]
-
-[tool.uv.sources]
-torch = [{ index = "pytorch-cu124" }]
-torchaudio = [{ index = "pytorch-cu124" }]
-
-[[tool.uv.index]]
-name = "pytorch-cu124"
-url = "https://download.pytorch.org/whl/cu124"
-explicit = true
+environments = ["sys_platform == 'linux' and python_version < '3.14'"]