Arch / EndeavourOS now ships CUDA 13 (libcublas.so.13); ctranslate2
4.7.2 (which faster-whisper rides) wants CUDA 12 + cuDNN 9 and won't
load against the system libs. Travis got it working ad-hoc with a
shell export of LD_LIBRARY_PATH + manual pip install, but systemd
doesn't inherit either, so the next reboot would refire the
libcublas.so.12 load error.
Making it permanent + reproducible:
- pyproject `tower` extra now pins the CUDA-12 runtime as pip wheels
alongside faster-whisper:
nvidia-cublas-cu12; sys_platform == 'linux'
nvidia-cudnn-cu12>=9,<10; sys_platform == 'linux'
uv.lock resolves nvidia-cublas-cu12 12.9.2.10 + nvidia-cudnn-cu12
9.22.0.52. Dev side (no --extra tower) stays clean — verified by a
no-extra `uv sync` followed by `uv pip list | grep nvidia` returning
empty.
- deploy/tower/run-transcribe-worker.sh (new, +x): computes the venv's
CUDA-12 lib dirs at runtime via `uv run python` (resolving
nvidia.cublas / nvidia.cudnn through __path__ — they're PEP 420
namespace packages with no __file__), prepends them to
LD_LIBRARY_PATH, then execs `uv run second-brain transcribe-worker`.
No hard-coded python3.XX path so it survives Python upgrades. If the
wheels aren't installed it aborts with a clear "uv sync --extra
tower" hint instead of a silent libcublas load failure deep inside
ctranslate2.
- second-brain-transcribe.service: ExecStart now points at the
wrapper. Also moves StartLimitIntervalSec / StartLimitBurst from
[Service] into [Unit] where modern systemd expects them
(systemd-analyze verify previously flagged the misplaced keys as
silently ignored). Restart=always, EnvironmentFile, After=/Wants=
wg-quick@wg-lan.service, User=herbyadmin all unchanged.
- second-brain-transcribe.env.example: trimmed to just
SECOND_BRAIN_DATABASE_URL with the placeholder spelled out, plus a
clear pointer to the ready-to-scp env file generated on herbys-dev
at /opt/backups/postgres-consolidation/second-brain-transcribe.env
(mode 0600, regeneratable from credentials.env without ever echoing
the password). The committed example never carries a real secret.
- deploy/tower/README.md: documents the CUDA-13-vs-CUDA-12 gotcha
upfront ("don't `pacman -S cuda cudnn`"), the wrapper-based
ExecStart, the scp-from-dev EnvironmentFile recipe with the
password-regen one-liner, and the EnvironmentFile-vs-shell-export
note.
Verified locally on dev (no GPU):
- uv.lock resolves with the new tower deps.
- A throwaway venv installed with the same `nvidia-cublas-cu12
nvidia-cudnn-cu12>=9,<10` pins produces lib dirs containing
libcublas.so.12 and libcudnn.so.9 via the wrapper's path probe.
- systemd-analyze verify is clean except the expected
"/opt/projects/... not executable on this host" warning (the
wrapper exists only in the tower's checkout).
- 27 passed / 2 skipped in pytest; zero-check 5/5.
GPU large-v3 + live service start under systemd remain tower-only
validation steps.
66 lines
2.1 KiB
TOML
66 lines
2.1 KiB
TOML
[project]
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name = "second-brain"
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version = "0.1.0"
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description = "Personal knowledge system: video/article extraction pipeline + LLM-maintained wiki"
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requires-python = ">=3.12"
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dependencies = [
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"alembic>=1.13.0",
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"click>=8.1.0",
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"embedding-chunking",
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"fastapi>=0.115.0",
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"httpx>=0.28.0",
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"jinja2>=3.1.0",
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"psycopg[binary]>=3.2",
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"psycopg-pool>=3.2",
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"pydantic>=2.0.0",
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"python-dotenv>=1.0.0",
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"python-multipart>=0.0.20",
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"sqlalchemy>=2.0.0",
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"tomli>=2.0.0",
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"trafilatura>=1.9.0",
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"uvicorn[standard]>=0.30.0",
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"yt-dlp>=2024.1.0",
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]
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[project.optional-dependencies]
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# Only required when extractor.backend = "api" in settings.toml.
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# The default "cli" backend shells out to the Claude Code CLI under your
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# Max OAuth subscription and has no Python-side Anthropic dependency.
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api = ["anthropic>=0.40.0"]
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# Tower-only: faster-whisper (CTranslate2) + the matched CUDA-12 runtime
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# pulled in as wheels. Arch/EndeavourOS now ships CUDA 13 (libcublas.so.13)
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# which ctranslate2 4.7+ cannot load — it wants libcublas.so.12 + cuDNN 9.
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# Pinning the CUDA-12 runtime via pip wheels in the venv sidesteps the
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# system CUDA mismatch entirely. sys_platform marker keeps these out of
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# any non-Linux resolve (the nvidia wheels are Linux-only anyway, but the
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# marker makes that explicit). Install with `uv sync --extra tower`; do
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# not install on dev.
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tower = [
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"faster-whisper>=1.0.0",
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"nvidia-cublas-cu12; sys_platform == 'linux'",
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"nvidia-cudnn-cu12>=9,<10; sys_platform == 'linux'",
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]
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[dependency-groups]
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dev = [
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"pytest>=8.0",
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"pytest-cov>=5.0",
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"ruff>=0.8",
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]
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[tool.uv.sources]
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# Shared chunker that vault-mcp / ob1-enricher / ob1-reflector also pin.
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# Same source so the 512/64 chunking stays in lockstep across services.
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embedding-chunking = { git = "https://gitea.plantbasedsoutherner.com/petal-power/embedding-chunking.git", tag = "v0.1.0" }
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[project.scripts]
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second-brain = "second_brain.main:cli"
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[build-system]
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requires = ["hatchling"]
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build-backend = "hatchling.build"
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[tool.hatch.build.targets.wheel]
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packages = ["src/second_brain"]
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