The CI was green. The cache wasn't working. Forty minutes per build run because pnpm couldn't find the store in GitHub Actions. Here are the logs, the before/after YAML, and the exact configuration that brought it down to 8 minutes.
May 12 2026 · 8′ · Experiments · TypeScript · pnpm
The install-time benchmark I published earlier didn't capture the real cost of pnpm workspaces in CI: silent cache invalidation, dependency hoisting that breaks in App Router, and a specific edge case that can take down your Railway pipeline. Here's what I failed to measure.
May 11 2026 · 10′ · Experiments · TypeScript · pnpm
Ghostty isn't leaving GitHub — it's pointing out that nobody should've given it that much power in the first place. I audited my own usage logs: CI, releases, issues, Pages. The numbers are uncomfortable.
Apr 30 2026 · 8′ · Opinion · devops · github
I built a public lab with reproducible benchmarks to measure TypeScript 7 native preview against TypeScript 6 on real repos. The results are interesting, but the more useful story isn't the speedup: it's understanding when it matters, what breaks during migration, and how to test it without exposing private code.
Apr 29 2026 · 6′ · Experiments · TypeScript · Performance
Architecture, real systems, product decisions and technical lessons. Everything reviewed with my own judgment before it ships.
222 articles published