Built

My own things, all public. What I build at work isn't here – that belongs to my employer.

• Tiefstand – a macOS menu bar app showing low-water levels on German rivers, built on the open NIWIS data. Menu bar plus a WidgetKit desktop widget, auto-refresh, release v0.1.1. Notarisation still missing. Swift, test-driven. GitHub

• Gerald – a companion running on a uConsole handheld that reacts to live coding sessions: a face, a feed, sound, a status line with model and context usage. Plus a BLE terminal. Public monorepo, English and German. GitHub

• SPECIMEN PRESS – a small label for plotter prints. Some motifs are generated, some are traced from source material and then drawn with a pen. Every print is a physical run on the machine, not print-on-demand – paper, pen, time. Early; first collection in progress.

• Laser Forge – a web app that turns images and generators into G-code for a pen plotter. Runs locally, with a bridge on a Raspberry Pi wired straight to the machine.

• ask-vault – local RAG over my own notes, model on my own machine, no network. It started as a question: how far do you actually get without an API. Answer: further than expected. There's an essay about it, in German.