Hi, I’m Johannes – a builder, speaker and music fan from Germany.

I’m currently building Overtone, a local-first music app that unifies your music library across various streaming services (Spotify, Youtube, ...) and personal collections.

I love the craft of software engineering and run the localfirst.fm podcast. I’m also involved in the Effect TypeScript ecosystem. Previously, I founded Prisma with the goal to make working with databases easier.

I also enjoy helping founders on their journeys building developer-focussed products and companies.