At 3:17 AM on a Tuesday in Q3 2024, our production Kotlin 2.0 microservice fleet hit a 92% memory utilization threshold across 140 nodes, traced to a silent coroutine leak in Ktor 2.2’s request pipeline that had been bleeding 12MB of heap per second for 72 hours. We lost $14k in SLO credits before we found the root cause. A Couple Million Lines of Haskell: Production Engineering at Mercury (78 p
AI coding tools are starting to look similar on the surface: they all offer chat, agents, code edits, terminal awareness, and some form of autocomplete. But the real differences are in the workflow. The question is less “which one has AI?” and more “where does the AI live in your development process?” For me, VS Code is still the baseline. It is flexible, extensible, familiar, and easy to compose