

First question is - are you familiar with Linux command line at all? If not get familiar with it first.
Second you’ll need to own or buy a domain and point it to the server’s IP.
Then install either Ubuntu Server or Debian on the server, setup SSH and run this Ansible project - https://github.com/LemmyNet/lemmy-ansible
If that’s not comprehensible to you, I’d really recommend getting more familiar with Linux command line and servers before I’d recommend starting a Lemmy instance.
No AMD is fine. You pretty much never need to install anything to get full performance from it, not sure what OP is up to maybe ROCm which is like, AI-related stuff. Not something most people need.