Self-hosting #osTicket as a way to track support I provide to the Linux community. Fantastic docker container available for this as well: https://github.com/CampbellSoftwareSolutions/docker-osticket
On the same box, hosting a #Pi-hole container to route all of my DNS traffic through.
Currently running #Debian on all of my machines. I have installed and ran every mainstream distro and all have their own amazing quirks and benefits. Most recently went back to #openSUSE, due to their brilliant built-in BTRFS snapshot and subvolume creation at install time.