Hi, I'm Rene.
I'm a full stack developer from Aarhus, Denmark, with 25 years of experience and a weight towards the frontend.
What I work on
Full stack, frontend first
Enterprise software, from the Java backend to the web UI. These days mostly TypeScript, React, Java and GraphQL, plus the design system that holds it together.
Recreational programming
Game jams, graphics demos and odd experiments, kept deliberately different from the day job. See the games.
Latest highlight
Virtual Puppet Theater
Your hand and voice drive one puppet; Claude improvises the other. Won “Most Creative Opus 4.7” at Anthropic's Built with Opus 4.7 hackathon and was shown at Code with Claude in London.
Recent writing
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Rust, WebAssembly and web-sys
My experience writing a small browser game in Rust. Learning the ropes of WebAssembly and web-sys.
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Galactic Backfire – A Retrospective of my JS13K Entry
How I made a space shooter that runs in reverse for js13k 2015, and what went right and wrong.
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Game round-up
Three small open source games I made but never blogged about.
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Java 7: Try-With-Resources (AutoCloseable)
How try-with-resources in Java 7 removes boilerplate when working with resources.
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Java 7: Project Coin
A tour of the small language changes in Java 7.
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Simple HTML5 Todo List
A small todo list built with the Ender “no-library library” and local storage.