Great post!

I have been running Proxmox for 3 years and it has been rock solid

- Docker VM : Lots of containers with docker compose, a few examples are Plex, AdguardHome, *Arr stack...

- K3s VM: Mostly to learn keep up with kubernetes; my own apps running in there

- Postgresql VM: database for anything that needs one

Currently trying to simplify, moving the database to a docker container and testing if docker and k3s can coexist on the same system, at that point I might ditch Proxmox and move to NixOS. The only things I might miss are the option to create VMs to test random things, and VM snapshots, which make backups really simple.

I still upgrade mine manually every Friday with an ansible playbook; most of the time nothing breaks, but if it does I know I have time to fix it.