Operus Demos
I am interested in what happens when music shapes the image itself. In Operus Demos, I build interactive WebGL experiments in the browser—and openly show what works and where it gets difficult.
PERSONAL PROJECTS
We hear plenty about what AI might be able to do one day. I’m interested in what already works today. So I explore what I can build with AI, software and technology—for everyday use or simply out of curiosity. Some ideas become projects; others remain experiments. On Operus, I share my experiences: what works, where I get stuck and what I learn along the way. Perhaps you’ll find some inspiration for your own ideas. Enjoy reading – and trying things out for yourself!
I am interested in what happens when music shapes the image itself. In Operus Demos, I build interactive WebGL experiments in the browser—and openly show what works and where it gets difficult.
My hands-on experience with AI video: models, prompts, reference images and costs — with real results, mistakes and post-production work.
My local document search for more than ten years of collected mail: OCR, full-text search and AI answers with sources — without requiring the cloud.
My own darts training app: practice at the board, statistics, coaching and games. I document its development and what I learn along the way.
My own local AI assistant with voice capabilities — from the first prototype to a modular web interface with controlled tool use.

Operus Demos · PART 10 OF 10
Simon composed a song for me to use in Operus. It became a journey through dust, gravity, plasma and light lasting just over two minutes. For me, Gravitas is the biggest leap yet in the Operus Demos: it brings together what I have learned from the earlier experiments.
Operus Demos · PART 9 OF 10
I wanted to see how far I could take light and shadow in the browser.
Video AI · PART 10 OF 10
Two weeks with video AI: my results with Seedance and other models, credit usage and the limitations I encountered when making AI videos.
Operus Search · PART 9 OF 9
More than ten years of scanned mail — and today my archive answers questions.