Florian Hirschmann

Engineer in Munich. I build Android Automotive apps that ship in production cars - and roast espresso on the side.

Projects Blog

github · linkedin · florian [at] hirschmann.io

01 — Projects

automotive-apps.com 2025 — today

9+ Android Automotive apps shipping in production cars, including BMW. Built solo, end to end: Kotlin, Jetpack Compose, self-hosted backends.

kotlin · aaos · compose · self-hosted
hirschroast.com 2023 — today

I roast specialty coffee: selected origins, fairly sourced, roasted by hand in small batches in Munich.

specialty-coffee · small-batch · munich
coffee.hirschmann.io 2026

An interactive explainer following a single coffee bean from cherry to cup — with more than two dozen 3D demonstrations you can drag, scrub, and break.

three-js · vanilla-js · static
autoappstore.com 2026

An app store for Android Automotive OS: developer onboarding, automated quality testing, and controlled app rollouts to specific vehicle fleets and markets.

aaos · app-store · self-hosted
auto-apptest.com 2026

AI-first, API-first testing for Android Automotive apps. It boots your APK on Cuttlefish-powered AAOS virtual devices for smoke and regression testing before it reaches a vehicle.

aaos · ai · cuttlefish · testing

Also shipped

  • improduell.de — improv match app with a live applause meter 2026
  • wasgibtsheute.com — recipe swipe cards for a nutrition counseling practice 2026

02 — Writing & Talks

More automotive-specific writing lives on the automotive-apps blog.

03 — Beyond code

I roast espresso under my own label, Hirsch Roast — up to 300 kg of green beans a year. The rest of my free time happens in the mountains: ski touring, climbing, triathlon.