Hi, I’m Stefan.
I’m a full stack software developer from Hamburg with a soft spot for the frontend. I care about doing things properly - clean, solid code, but also about the product it ends up in - in the end it’s about building things people actually like to use.
When I’m not coding, I’m probably doing sport, enjoy nature, playing computer games, or - every now and then - dj or taking photos.
Elsewhere
Blog
Shared links
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platypus45/domestique
Adaptive cycling training planner: 7 science-grounded injury-prevention guardrails close the loop between planned and actual training. 4,232 ZWO workouts, 622 routes, hardware-agnostic.
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2026 Hugo Awards Results
book reading ideas
- How I feel about AI
- Decapitating Macbook: An Odyssey
- Models Don't Go Rogue
- React 19 useActionState Explained: Build Better Forms with Real Examples & Common Mistakes
- ihavebeenclawed — an index of agent incidents
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Claude Fable 5.1 made me a really nice animated pelican
I love that series and to see the models evolving
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DanLeonti/AgentLights
A macOS menu-bar traffic light for your Cursor & Claude Code agents. Green = your turn, orange = working, red = needs you.
- Effort