Files
siftlode/docs/development.md
T
peter d2e40dcffb feat(design): design lab + DESIGN.md skeleton (E28 S2a)
- docs/DESIGN.md: the written source of truth for the UI. Decided chapters
  (principles, device adaptation, action placement, text stays selectable,
  interaction rules, copy, anti-patterns, decision log); controls and
  surfaces are marked Pending until the owner picks from the lab.
- /design-lab (dev only): renders each open decision's variants with the
  app's real CSS, themes and font scale. Batch A = six control decisions.
- devOnlyGuard: a production build fails if anything under src/design-lab
  reaches the bundle (seen red with an unguarded import).
- Size contract: tablet portrait + landscape and up, replacing the
  1024x768 floor with its never-built "too small" message.
2026-09-24 01:34:12 +02:00

3.2 KiB

Development

How to run Siftlode locally and pass the gate. Conventions for the backend code itself live in backend/app/README.md.

Node

One major, everywhere. .nvmrc pins it; the CI container, the Dockerfile's frontend build stage, frontend/package.json's engines and @types/node must all match it — and so must the machine you run the gate on. frontend/src/lib/nodeEngine.contract.test.ts fails the gate the moment any of them drift apart, including when yours is the odd one out. nvm use in the repo root picks it up.

This is a contract, not a preference: tsc and vitest read the engine's own Intl and web APIs, and those change between majors — the same currency format renders $160M on one and $160.0M on the next. A gate that is green on a major you do not ship is green about nothing.

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 dev server also serves the design lab at http://localhost:5173/design-lab: the open design decisions and the chosen patterns, rendered with the app's real CSS. It never reaches a production build (see DESIGN.md).

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 + format check
python -m ruff check --config backend/ruff.toml backend scripts
python -m ruff format --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.