Writings

> writingsEngineering notes, architecture breakdowns and lessons learned from building software.

Designing ColabCanvas: Building a Real-Time Collaborative Whiteboard

Published on July 2026 • 6 min read

A walkthrough of the architecture behind ColabCanvas, covering WebSockets, persistence, synchronization, and the trade-offs of building real-time collaboration.

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A Small Cleanup Function Caused a Production Incident

Published on June 2026 • 5 min read

Cleanup that ran after job processing let stale queue jobs send duplicate completion notifications to active customers.

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