engineer · ai systems · builder
I build systems —
and the AI agents that ship them.
One engineer, a swarm of AI agents I design. I build the agentic engineering system, then use it to ship real products — currently a health portfolio: eat, move, meditate.
4 apps · 3 open-source tools · one engineer
About
I'm Craig — an engineer based in Europe. Day to day I work in in-person payments at Adyen; the rest of the time I build software with AI agent systems I design myself, which is how one person ships at the pace of a small team.
That building turned personal. I spent years reverse-engineering how eating, moving, and stillness actually affect the body, then shipped what worked as real apps. No hacks, no motivation required — just honest systems that hold up on the days you don't feel like it.
Engineering
Shipping this much solo takes leverage: I run a swarm of AI agents through an agentic engineering system I built — coordinated planning, review, test, and ship loops. Some of the tooling is open source.
Agentic toolkit
Agent Compounds
Commands, skills, and sub-agents for compound agentic workflows in Claude Code. Drop into .claude/ and go.
Multi-model CLI
openrouter-cli
One scriptable interface to 400+ models via OpenRouter — built for AI agents to consume.
Test selection
vitest-affected
Dependency-graph test selection for Vitest — skip irrelevant tests and keep CI fast.