I recently became interessted in learning about static site generators. So I decided to start a little 11ty blog, in which I teach people, who are new to self-hosting, how to securely set up their own server with Ubuntu and Docker.
For now, I’ve got my Beginners Guide series as well as a more detailed introduction to SSH and its features. I plan to eventually write down all I’ve learned about self-hosting in the past 20 years.
Hope it ends up being helpful for some of you.
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.