My current favorite outside of gaming is selfhosting or homelabbing. Maybe not to a high degree but I manage four local servers and one offsite, with four websites. It’s pretty fun but makes me super stress when it fails. One of those websites is a work related database but it’s also very fun to manage.

Another small hobby I have is managing my own small library. Using LOC codes I learned from the library. I inherited a massive collection from retiring profs.