2022
Pulse — Real-Time Collaborative Editor
A Figma-style multiplayer text editor built on CRDTs, syncing cursors and content in real time for dozens of concurrent editors.
ReactYjsWebRTCNode.js
The Challenge
Naive last-write-wins syncing caused visible content flicker whenever two people typed in the same paragraph.
The Approach
Adopted a CRDT (Yjs) for conflict-free merges and a WebRTC mesh for peer sync, falling back to a relay server past six peers.
The Result
Cursor and content sync landed under 100ms for groups of up to 40 concurrent editors, with zero reported merge conflicts in production.