Hey, Theo here.

I build custom web apps for small companies that have outgrown spreadsheets: SaaS products, internal ERPs and admin-heavy internal tools.

How it works. We start with a short call where you walk me through the workflow. I turn it into a written scope and you approve it before I write any code. Then I build in the open, with a working link in your hands early, so you can click through it and tell me what is wrong while it is still cheap to change.

What you get. The app itself, an admin panel your team can run without me, it deployed on hosting you own, and a short handover doc.

Stack: Next.js or React with TypeScript on the front, Node or Hono on the back, Postgres or Supabase for data. I wire in payments, WhatsApp, email and Meta tracking where the workflow needs them.

Recent builds: an ERP for a creative school covering enrolments, classes, staff, billing and reports. A marketplace builder for Indonesian small businesses with payments, shipping and Meta tracking. An AI chiptuning configurator for a German tuning company. A mobile Bible app. A handful of marketing sites built on a CMS the client edits themselves.

I work solo, so you talk to the person writing the code. Nothing gets outsourced and nothing gets handed to an account manager. If the scope changes, we write it down and agree the change before I carry on.