lsBlog
Technical notes. What I've learned by building.
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- 2026-04-30engineering5 min read
Splitting central from regional without duplicating everything.
Multi-region isn't 'one stack, copy-pasted N times.' Three layers, each with a clear job, and a single rule about who depends on whom.
- 2026-04-17engineering5 min read
Real-time with Socket.io across instances: what I learned the hard way.
Socket.io behind a load balancer with multiple backend instances breaks in three specific ways. Each one teaches you something the docs underplayed.