39 long-form articles on production engineering — how real systems fail, why, and what actually fixed them.
3 articles matching “Node.js”
AI Agents18 min read
The Refund Agent will not refund until the carrier confirms the return. The Shipping Agent will not create a return label until the refund is approved.
Query Optimization18 min read
A deep-dive into non-SARGable SQL with B-tree diagrams, real EXPLAIN output, and the exact rewrites — told through a gaming dashboard that went from 4,200ms to 2ms without touching the schema.
WebSockets & Real-time4 min read
A production case study — how a small config issue brought down an entire IoT device fleet and what fixed it.