

Yes, as I said it’s a debian base. But Proxmox is built for servers and using it to host and share containers or virtual machines is super simple. Especially with the community helper scripts that can set up different self-hosting projects within minutes with minimal tinkering.


It depends on the project/container. Some containers run Debian, some Alpine, some Ubuntu. I mostly rely on the community scripts from here and use the defaults.
https://community-scripts.github.io/ProxmoxVE/
I guess everything that supports containers, QEMU and KVM is compatible to use as a guest OS in Proxmox.