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Freero — an original real-time collaborative whiteboard (React + TypeScript + Yjs), built with the Dune method
Taken from the repository README
Loading the full README.
Read the full README ↗An original real-time collaborative whiteboard: an infinite canvas for teams to brainstorm, plan, diagram and run workshops together.
Requires Node 22+.
npm install
npm run dev # server on :4000 + web on :5173
Open http://localhost:5173 and log in with the seeded demo account
[email protected] / freero123 (development only), or sign up.
http://localhost:5173/board/local is an offline sandbox board that needs no server.
Production:
npm run build && npm start # serves the built web app and the marketing site (apps/site) on :4000
docker compose up --build -d # or the full stack: proxy, 2 app replicas, Postgres, Redis, MinIO, Mailpit on :8080
Deploying for real: docs/deployment.md · every setting: docs/configuration.md · backups, monitoring, incidents: docs/operations.md.
Configuration: PORT (default 4000), FREERO_DATA_DIR (default ./data — the built-in PGlite
database in data/pg + uploads), DATABASE_URL (use a real Postgres instead), DATABASE_POOL_MAX
(default 10). Had boards from before the move to Postgres? Stop the dev server and run
npm run db:import-sqlite once.
| Command | What it does |
|---|---|
npm run check | Architecture boundaries + typecheck + unit tests |
npm run verify | Real-session end-to-end check: real server, real Yjs WebSocket clients, roles, persistence |
npm run new:feature <name> -- … | Scaffold a feature folder (see ARCHITECTURE.md) |
node scripts/ui-shot.mjs --url … --out … | Drive the real UI in headless Chromium and screenshot it |
Freero follows the Dune method:
features are isolated folders discovered by reserved file names, every piece of state has one
writer, and forbidden dependencies fail npm run check with an error that names the supported
path. Read ARCHITECTURE.md before changing code.
Stack: React 18 + TypeScript + Vite, Yjs (CRDT) over WebSockets, Express + ws, PostgreSQL
(pg; PGlite for dev/tests), Playwright for UI verification.
MIT. Dependencies are kept to permissive licences (MIT, Apache-2.0, MPL-2.0); GPL, AGPL and source-available projects are integrated at the protocol level only, never vendored.