Writing

Notes on infrastructure, tooling, and shipping with a boring stack.

2026

  1. Testless against hono: the receipts

    I ran testless against honojs/hono’s real commit history. Two fixes selected 12 of 2,684 tests and 39 of 2,681. A third selected 47%, and I’m not hiding that one.

    5 min read

  2. adeptability learns to publish, automate, and admit what it drops

    adeptability 1.4 to 1.9: publishing skill libraries, composing agents into scheduled loops, and admitting when a harness drops a file.

    4 min read

  3. I got tired of CI re-running tests nobody doubted

    testless: a Rust CLI that reads a git diff, walks a static call graph across TypeScript, Go, and Rust, and prints the exact tests a change impacts.

    4 min read

  4. Cloning a repo runs code, and your hook manager is fine with that

    hookguard splits git hook install from execution: hooks auto-install on clone, but nothing runs until you accept the exact commands, keyed to their content.

    6 min read

  5. No backend, but a real database

    How I shipped a client-side app with SQL persistence, product analytics, and live external data, without operating a single server. The architecture behind Scrolls Buddy.

    3 min read

  6. Author once, run in every agent: how we share AI skills at Echo

    At Echo we use Claude Code, Cursor, and Codex. adeptability lets us author a coding skill once and render it into all three, not three drifting copies.

    4 min read

2020

  1. TypeScript unions and discriminating unions

    Model application state with TypeScript union types, and why a literal discriminant field is what makes narrowing them safe.

    2 min read

  2. Dockerizing a NestJS app and debugging it in VS Code

    Package a NestJS app into a Docker image, run it with Compose, and attach the VS Code debugger to the process inside the container.

    4 min read