Product · early testing
Handover
A home for client assets and presentations, with deliveries you can share. I built the backend from a UI-only prototype.
Convex + Cloudflare R2
Software engineer · Worthing, UK
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.
A few things I’ve been making
Some work. Some play.At Tillo
AI code review
A panel of agents that checks pull requests before human review. I own the design, model choice, and build.
TypeScript + OpenCode
Side project
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.
Python + Raspberry Pi
Work in progress
The experiments
How much context does an AI reviewer need? Can an agent convert a test suite? Notes on what happened when I tried.
Questions, attempts, and a few caveats
Sometimes I write things down
All the writing →How to Build Agency When You're Smart Enough to Wait Forever
A before-lunch exercise for sharing rough work, asking earlier, and telling a useful pause from avoidant delay.
Notes on Using Gemini 3 and GPT-5-Codex
An archived account of choosing between a responsive editing loop and a more deliberate pass through repository context.
The Velocity Paradox: Faster Code, More Work to Verify
A large test conversion shows why faster implementation shifts attention to the evidence needed before adoption.