NIMBUS
COLLABORATIVE WORKSPACE
A horizontally scalable real-time engine designed for sub-millisecond state synchronization across distributed nodes using Conflict-Free Replicated Data Types (CRDTs).
System Architecture
WebSocket Orchestration
Utilizing Socket.io with a Redis Pub/Sub adapter to maintain consistent state across multiple distributed server instances.
CRDT Resolution
Integrating Yjs to resolve concurrent multi-user edits through incremental binary updates, ensuring eventual consistency.
Workspace Surface
A unified Next.js environment integrating Milkdown and Excalidraw, providing both rich-text and visual collaboration surfaces.
THE STACK
Built for high-concurrency collaboration
Node.js & Socket.io
Primary runtime for the WebSocket microservice, handling complex sub-millisecond event loops for thousands of concurrent users.
Redis Pub/Sub
Acts as the message broker between distributed server nodes, ensuring every client receives updates regardless of which node they are connected to.
Turborepo & Next.js
Monorepo architecture managing multiple workspace packages, ensuring type safety and shared logic across the collaboration stack.
CHALLENGES
State Desynchronization
Handling concurrent edits from users on slow connections without reverting their local changes.
WebSocket Scaling
Scaling beyond a single server instance while maintaining a unified room state across the cluster.
SOLUTIONS
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CRDT Immutable Updates
Using Yjs to broadcast ONLY the delta chunks, allowing the engine to merge changes mathematically rather than chronologically.
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Redis Adapter Pattern
Implemented a global event bus using Redis, allowing nodes to broadcast state changes to all other nodes in the cluster instantly.
READY FOR DEPLOYMENT.
Nimbus is engineered for high-density collaboration. Explore the distributed infrastructure or launch the workspace.