I'm just getting my server up and running! Previously it only ran Honeassistant.
Now it runs proxmox, which boots 2 vms, one for HAOS and another for Debian. On the Debian vm there is currently Plex, nextcloud, and some -arr apps.
8 also have a separate raspberry pi pihole. I've had that going for years now, I think I first made it 2019.
Joplin is another FOSS alternative to Obsidian. I've been using it for years; it let's you encrypt your notes in place so they can't be read without the client having the password to access them.