The Problem
Every building job produces leftover materials. There's no marketplace designed for how builders actually think about surplus stock. Facebook is too generic. eBay charges too much.
Built by a Tradesman
I've done national pub refits, run a motorcycle workshop, and managed multi-site building projects. The categories, listing flows, and search logic are designed around how tradespeople actually think.
The Build
React Native with Expo for cross-platform mobile. Supabase handles real-time backend — listings, user profiles, messaging, and transactions through PostgreSQL with real-time subscriptions.
The Result
A purpose-built mobile marketplace that speaks the language of the UK building trade. The best software comes from understanding the domain first.