Real-Time Collaborative Editor
Build a Figma-style or Google-Docs-style collaborative editor with CRDTs, presence, and conflict-free sync.
About this project
Real-time collaboration is the hardest "shippable" full-stack pattern. This project teaches CRDTs (Yjs is the standard 2026 pick), WebSocket connection management, presence (cursors, avatars), and the eventual-consistency UX patterns. Ship a real app — a markdown editor, a kanban board, or a shared whiteboard. The portfolio impact is significant.
Why build this in 2026?
Collaborative apps are everywhere now (Figma, Notion, Linear) — being able to build one is a strong differentiator.
What you'll ship
- Live demo with multiplayer editing
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