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Systems I have built and left open. Not snippets: working things you can run, with the architecture written down and the trade-offs argued in public.

  • Open sourceAugust 2026

    GitHub Issues Summarizer

    Paste a repo URL, get the briefing its issue tracker never wrote

    A deliberately small exercise: one simple workflow, built as a demo you can run yourself. A deterministic router, a parallel fan-out, a bounded evaluator loop, a score computed in code rather than guessed by a model, and a cache that makes the second run free. Public repo, running instance, and the design document that was written before the code.

    Read the writeup→
    • Next.js 16
    • TypeScript
    • OpenAI
    • Cloudflare Workers
    • Workers KV
    • GitHub GraphQL
    • Tailwind v4

Design engineer.

Scope. Design. Build. Ship.

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Tell me what you’re building, or what you’re stuck on. I read everything and reply myself.