Languages
Native Dutch, fluent English, B2 French, conversational Portuguese, and beginner attempts at German and Esperanto. The languages aren't the point — paying close attention to how people communicate is.
Self-hosting
Running my own little corner of the internet from a server in my apartment. Minecraft, this website, and whatever else I'm experimenting with. The opposite of cloud convenience — and that's the appeal.
Teaching, still
I taught physics for a while and the instinct hasn't left. I still find a way to explain things — to friends at the bar, to whoever asks at a dinner party, occasionally to a confused homelab visitor.