Hey, I’m Henry. I build software: products, tools for developers, and the occasional thing with a Raspberry Pi inside.

Right now, I’m building AI development tools at Tillo and working on Handover. I’ve been making things for the web since 2014. More about me →

Projects

Handover
A home for client assets and presentations, with deliveries you can share. I built the backend from a UI-only prototype.
Product · early testingConvex + Cloudflare R2
AI code review
A panel of agents that checks pull requests before human review. I own the design, model choice, and build.
At TilloTypeScript + OpenCode
Inky photo frame
A little photo manager for a Raspberry Pi and an e-ink display. Upload pictures, rotate them, and let the frame do its thing.
Side projectPython + Raspberry Pi
The experiments
How much context does an AI reviewer need? Can an agent convert a test suite? Notes on what happened when I tried.
Work in progressQuestions, attempts, and a few caveats

September 2026

AI review tools, Handover polish, and a rather large test conversion.