Writing
Notes and essays on building software — and on building it with AI. Newest first.
A lazy-loaded, always-current doc structure for agentic coding — a small index that points to a tree, a two-tier split between maintained and historical docs, and why the agent that built your project is the wrong one to ask whether its docs are still true.
A full worked leaderboard design — Redis sorted sets, fan-out, sharding, the rank problem — alongside interview-skill notes and a companion piece on using AI to prepare for system-design interviews.
What a skeptical 13-year backend engineer learned from 3 weeks of building with Claude — going from AI doubt to shipping three real projects (cut_sh, sans_cube, sans_yt_summary), and where senior judgment still steers the design.