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repo for storing the second brain project
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Travis Herbranson d40f25c99d config: load settings.local.toml as a section-level overlay 
The base settings.toml is tracked; the new sibling settings.local.toml
is gitignored (entry already at .gitignore:32 — it was aspirational
until now, since the loader only read one file).

`load_config()` now overlays the local file on top of the base via a
new `_overlay_sections` helper that merges one level deep: for each
section in the local file, its keys are merged onto the base section's
keys, so a local `[database] url = "..."` no longer wipes other
`[database]` keys in the base. Sections present in only one file pass
through untouched.

Overlay is resolved as a sibling of whichever base file was chosen, so
SECOND_BRAIN_CONFIG=/etc/sb/settings.toml also picks up the matching
/etc/sb/settings.local.toml.

This is the dev-side ergonomic fix: Travis's interactive shell can keep
the lovebug password in a gitignored, 0600 settings.local.toml instead
of needing SECOND_BRAIN_DATABASE_URL exported on every manual `process`
run. Existing _merge is untouched (shallow), so the per-section
property merges in Config keep current semantics.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-25 17:09:57 -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 web: show "Re-extract only" for articles too 2026-05-25 16:15:39 -04:00
src/second_brain config: load settings.local.toml as a section-level overlay 2026-05-25 17:09:57 -04:00
tests config: load settings.local.toml as a section-level overlay 2026-05-25 17:09:57 -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: refresh CLAUDE.md to current shipped state 2026-05-25 15:46:20 -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.