The layering rule ("request-only logic in routes/; scheduler+worker-shared logic
in the plex|downloads|sync packages; cross-cutting primitives as flat core
modules; extract at the SECOND consumer") was real but unwritten — it lived only
in three module docstrings and a one-line README mention. Collect it, plus the
transaction-ownership rule (a mid-operation helper stages, the caller commits),
the atomic-counter / JobStatus-StrEnum conventions, and the one-home-per-config
rule, into backend/app/README.md. Add docs/development.md (run locally + the gate
commands + branching), so a new session/contributor has one place to look instead
of copying whichever pattern they happen to find first.
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Development
How to run Siftlode locally and pass the gate. Conventions for the backend code itself live in
backend/app/README.md.
Run it locally
The whole stack (Postgres + API + worker) comes up from the localdev compose file:
docker compose -f docker-compose.localdev.yml up --build
Browse at http://localhost:8080 (Google login works — the OAuth redirect is
http://localhost:8080/auth/callback). The API runs alembic upgrade head on startup, so the schema
is always current.
For a fast frontend edit loop, run the Vite dev server with HMR against that API:
cd frontend && npm install && npm run dev # http://localhost:5173, proxying the API on :8080
The gate
A change is done when all of this is green. CI runs the same checks server-side
(.gitea/workflows/check.yml), so "main is always green".
Backend
# lint
python -m ruff check --config backend/ruff.toml backend scripts
# tests — pure-logic + the DB-backed integration lane, against an ephemeral Postgres.
# The backend tree is bind-mounted, so it always tests your working files.
docker compose -f backend/docker-compose.test.yml up --build --abort-on-container-exit --exit-code-from test
docker compose -f backend/docker-compose.test.yml down -v
The test compose sets SIFTLODE_TEST_REQUIRE_DB=1, which turns a would-be silent skip (no DB, or no
ffmpeg) into a hard failure — so the gate can't print green while the DB-backed tests were quietly not
run. Tests that need a database take the db fixture (backend/tests/conftest.py); the rest are
pure-logic and run without one.
Frontend (from frontend/)
npm run typecheck # tsc x3 (app / node / e2e)
npm run lint # eslint
npm run format:check # prettier
npm run knip # unused exports/deps
npm run test # vitest
Branching
Trunk-based: branch off main, keep the branch gate-green, and land the whole change back to main
in one reviewed step. Migrations are Alembic revisions under backend/alembic/versions; the API
applies them on startup, and the DB-lane rebuilds the schema via alembic upgrade head, so a broken
migration chain fails the tests.