Cobalt
Real-time collaborative canvas with offline support
- Abandoned:
- 10mo ago
- License:
- MIT
- Submitted by:
- Jonas Lindqvist
The story
Cobalt is a Figma-lite built on Yjs. I built it to teach myself CRDTs. The interesting part was the performance budget — we hit 60fps on 5k objects per user, 8 concurrent users, on a M1. The codebase is small (~8k lines of TS) and the test suite is the best I've ever written. I'm not using it, my co-author is at a startup that acquired it, and we're looking for someone to take it from here.