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repo for storing the second brain project
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Travis Herbranson 24055ad686 Merge branch 'claude/laughing-shirley-52f4a6': queue-page add form + tower CUDA-12 pin 
Two commits since the last merge:

- web: add-to-queue form on /queue too, with per-page HTMX dispatch.
  Shared form partial reused by /dashboard and /queue; the POST
  /sources/add endpoint dispatches the response partial by inspecting
  HX-Current-URL so each page's own list/counts refresh inline. Same
  service call, same flash behavior.

- tower: pin CUDA-12 wheels + LD_LIBRARY_PATH wrapper for the systemd
  service. ctranslate2 4.7.2 needs CUDA 12 + cuDNN 9 but Arch ships
  CUDA 13, so we pin nvidia-cublas-cu12 + nvidia-cudnn-cu12>=9,<10 in
  the `tower` extra and add deploy/tower/run-transcribe-worker.sh,
  which resolves the venv's lib dirs at runtime and prepends them to
  LD_LIBRARY_PATH before exec-ing the worker. systemd doesn't inherit
  shell exports, so this is what makes the service survive reboots
  and Python upgrades. ExecStart= now points at the wrapper, and the
  StartLimit* directives moved into [Unit] where modern systemd
  expects them.

Travis's tower-side corrections on main (`User=trucktrav`,
`gitea-pbs-trucktrav` clone alias, tower WG IP 10.99.0.3) auto-merge
cleanly against these branch edits — different lines in the same files.
2026-05-25 15:43:47 -04:00
alembic transcripts: capture segment-level output into a new JSONB column 2026-05-25 13:40:49 -04:00
config postgres migration: schema, models, embeddings, alembic 2026-05-24 22:46:48 -04:00
deploy Merge branch 'claude/laughing-shirley-52f4a6': queue-page add form + tower CUDA-12 pin 2026-05-25 15:43:47 -04:00
prompts project init 2026-05-22 19:08:22 -04:00
reviews docs: update CLAUDE.md + migration plan to reflect shipped Postgres design 2026-05-24 22:57:31 -04:00
src/second_brain web: add-to-queue form on /queue too, with per-page HTMX dispatch 2026-05-25 14:21:02 -04:00
tests playlists: queue-time YouTube fan-out via yt-dlp extract_flat 2026-05-25 13:59:35 -04:00
.gitignore add .gitignore 2026-05-24 21:10:53 -04:00
alembic.ini postgres migration: schema, models, embeddings, alembic 2026-05-24 22:46:48 -04:00
CLAUDE.md docs: update CLAUDE.md + migration plan to reflect shipped Postgres design 2026-05-24 22:57:31 -04:00
postgres-migration-planning.md docs: update CLAUDE.md + migration plan to reflect shipped Postgres design 2026-05-24 22:57:31 -04:00
pyproject.toml tower: pin CUDA-12 wheels + LD_LIBRARY_PATH wrapper for the systemd service 2026-05-25 15:39:13 -04:00
README.md updates to project files 2026-05-24 22:23:59 -04:00
uv.lock tower: pin CUDA-12 wheels + LD_LIBRARY_PATH wrapper for the systemd service 2026-05-25 15:39:13 -04:00

README.md

second-brain

A personal knowledge system built on a video/article extraction pipeline and an LLM-maintained wiki (inspired by the Karpathy LLM Wiki pattern).

What it does

  1. Pull — download YouTube videos or fetch web articles
  2. Transcribe — extract transcripts via Whisper (videos) or trafilatura (articles)
  3. Extract — single-shot Claude call produces structured notes per source
  4. Review — web UI to accept or reject extractions
  5. Compile — wiki compiler folds accepted extractions into a living Obsidian vault

Quick start

# Install dependencies
uv sync

# Copy and edit config
cp config/settings.toml config/settings.local.toml

# Queue a source
uv run second-brain add https://www.youtube.com/watch?v=...

# Run the pipeline
uv run second-brain process

# Review in the web UI
uv run second-brain serve

# Compile to wiki
uv run second-brain compile

Domains

Extractions are tagged by domain so the right prompt template is used:

Domain Focus
development Software, programming, systems
content Content creation, video production
business Entrepreneurship, marketing, ops
homelab Self-hosted infra, networking, DevOps

Extractor backends

Two backends, selectable via [extractor].backend in config/settings.toml:

  • cli (default) — shells out to claude -p --output-format json --json-schema .... Runs under your Max OAuth subscription, no per-token billing. The wrapper spawns the CLI in a throwaway tempfile.TemporaryDirectory and strips ANTHROPIC_API_KEY / ANTHROPIC_AUTH_TOKEN from the env so host CLAUDE.md, hooks, and settings don't leak in, and the subscription is used instead of the API key.
  • api — uses the anthropic Python SDK, requires ANTHROPIC_API_KEY. Install with uv sync --extra api (the SDK is an optional dependency).

Requirements

  • Python 3.12+
  • Either the claude CLI on PATH (default backend) or ANTHROPIC_API_KEY (api backend)
  • ffmpeg (for Whisper audio extraction)

In-flight work

  • Postgres + pgvector migration — SQLite is the current backing store but the project is moving to Travis's Postgres instance. Planning questions live in postgres-migration-planning.md; nothing has been migrated yet.