Work
Three systems I designed and built. Each one is somebody's working day.
Property CRM
An operating system for estate agencies. Properties, landlords, leads and viewings in one place, with the chasing messages sending themselves and a public listings site generated from the same records the agents work in — so the website cannot drift out of date.
React, Node.js, PostgreSQL, Google APIs, WhatsApp
reosystems.euPoint of sale & stock
Two tills, built for opposite problems. Retail OS runs several independent clothing businesses from one installation — size and colour variants, stock that is never changed without a ledger entry explaining why, and each business's data walled off inside the database itself rather than by the code remembering to. Mi Tienda is the other end of the scale: one Colombian shop, in Spanish, priced in whole pesos because cents do not exist there in practice, where the shopkeeper defines the products rather than a developer.
Next.js, TypeScript, PostgreSQL, Prisma · React, Vite, SQLite
Learning app
A language learning app built around spaced repetition — the words you keep getting wrong come back sooner. Exercises, progress tracking, and practice sessions between two learners at once.
React, Vite, Node.js
Tell me what it is and what goes wrong with it. If I am not the right person for it, I will say so.
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