Local development setup

This tutorial gets you from a fresh checkout to a green type-check on both the Rust server and the SvelteKit web app.

Type-check the server. From server/:
Terminal window
```
cargo check
```
Run this after every change — it is the fastest correctness signal.
Run the web app. From web/:
Terminal window
```
npm install
npm run dev
```
The Vite dev server runs on port 5173 and proxies /api and /ws to the server on :8080.

Type-check the web app. Still in web/:

npm run i18n:compile        # regenerate Paraglide messages first
npx svelte-check --threshold error

The pre-commit checklist

Before committing, the project expects:

cargo check — 0 errors.
npx svelte-check --threshold error — 0 errors.
npm run lint (oxlint) + npm run format:check — 0 errors.
New i18n keys added to both web/messages/en.json and de.json, then npm run i18n:compile.

See also