Software engineer · Full stack · Open source tools, lately for coding with AI
Rey’s Lab
I build things and write down what they cost. Projects here come with the tradeoff attached, not just a screenshot — and the site itself is kept in the open, decision by dated decision, in the lab.
Selected projects
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On npm · VS Code Marketplace
Grounder
A CLI that links a project to a local markdown vault, so an agent keeps its memory between sessions instead of starting cold every time.
Live
Rookie Trader
Live Kraken market data and your own Kraken account in one browser page: ticker, order book, candlestick chart, balances, orders and trades.
GitHub repo
Playbook
One repo of agent rules and skills, generated into Claude Code, Cursor and other coding agents, so every project gets the same instructions from a single source.
Recent posts
All postsThe adapter is the lock-in
Why a static build and a dist directory buy more portability than any deployment abstraction.
Deciding by looking
Two weeks of arguing about fonts in prose, settled in ten minutes by a route that renders them.
A monorepo with one app in it
Boundaries are cheap to draw early and expensive to draw late. Abstractions are the opposite.