I do! I have 5 rack mount servers in total as well as an old i3 laptop that I use as a gateway between things.

At the moment, all of them are powered down due to the cost of energy in the UK but when it was fully up and running, I had a proxmox cluster running on 4 of them and hosted Discord and Fedi bots, Fedi servers, Websites, Plex, and lots of other things.