I used to have a VPS running a traditional OS (CentOS) that I eventually got rid of. One of the reasons I tried to migrate away from it was from the sysadmin perspective, I felt like the server once everything was configured was a bit of a snowflake.
Obviously configuring everything through nix and being able to easily rollback changes sound very compelling.
Have folks used nix as a server OS? How's your experience been?
Yeah I do, and it's awesome! I just love having a big overlap in my system configurations, so I can change something once and update my systems all simultaneously and identically.
I have one Arch box left and I kinda detest having to log in on it to do system administration. My NixOS boxes can just be updated remotely and atomically, never requiring me to log in on them and do things manually. This is like Ansible on steroids! And then I'm not even talking about using impermanence yet, that totally seals the deal for me.