Automation and integration, mostly in Go. Paid to write software since 1996, and writing Go since early 2010, which makes me the third biggest fan. A lot of that turns into Go client libraries for other people's REST APIs. I enjoy it more than most people expect.
The rest of it wanders: Home Assistant components, Twitch tooling, TinyGo on a micro:bit, a kernel module for a Logitech receiver I got annoyed at, a Toki Pona dictionary. Most of the home automation is there to make the house cozier. I care about accessibility, and I'm opinionated about it.
Most of these repos are experiments. I learn things by building them, so plenty of this is unfinished on purpose, and a few I use every day. One does nothing at all.