Ko-Lab

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Get it running, understand how it is tested, and know what deployment requires.

Install, generate every credential, and run all three services locally.

The Vitest suite, plus manual procedures for realtime, media and canvas work.

Two apps with different hosting needs, and the constraints that decide them.

Ko-Lab is two deployable apps over one database. The WebSocket service is also a git microservice.

Next.js 14 App Router, React Flow canvases, CodeMirror, and the realtime hooks.

Route handlers over Prisma and PostgreSQL, with the full API reference.

The realtime hub — which is also a git microservice. Protocol, guards and limits.

Each feature spans all three layers, so each is documented end to end — from code to demo.

The unit of collaboration: membership, roles, live chat and the notification centre.

Four collaborative canvases with live cursors, presence and throttled broadcast.

In-browser IDE, change requests, merges, and the code-access state machine.

LiveKit-backed calls with screen sharing — the best-tested area of the codebase.