Things I build myself.
Products and open source I run alongside client work. Pilot Shell is the engineering framework I use on every engagement.
Pilot Shell
How real engineers run Claude Code and Codex
- 1.8k+ GitHub stars
- macOS / Linux / WSL2
- Claude Code & Codex CLI
Coding agents write fast but skip tests, lose context and drift. Pilot Shell installs on top of Claude Code and Codex CLI and adds the structure they lack: /prd shapes an idea into requirements, /spec plans and verifies a feature end-to-end with TDD, /build loops build-and-judge until every acceptance criterion passes, and /fix resolves bugs at the root cause with a reproducing test. Quality hooks lint, format and type-check every edit; persistent memory carries decisions across sessions; everything stays on your machine.
Bahnsparer
Günstiger ans Ziel - fare alerts for German rail
- iOS & Android
- Free, no account
- Data stays on device
Bahnsparer watches Deutsche Bahn Sparpreis fares so you don't have to. Fix your travel day and it monitors exactly that day in the background, notifying you on every new low - and warning you when the cheap contingent sells out. Stay flexible and a four-week calendar shows the cheapest fare for every day at a glance, with DB and FlixTrain ranked in one list and each train's punctuality record next to its price.
DIY-Thermocam
Open-source thermal imaging for everyone
- 1.2k+ GitHub stars
- 179 forks
- C/C++ · FLIR Lepton
A do-it-yourself thermal imager built around the FLIR Lepton sensor - firmware, PCB, enclosure and a full desktop suite, all public. Designed as a self-assembly kit buildable at home with standard tools; used for finding heat leaks, analysing electronics, and drone-mounted capture. It began as my bachelor thesis and became a platform used by makers, schools and companies.