As I replied to another who suggested ESPHome - I don’t want a bunch boards and wires stuck everywhere and unless I am misunderstanding it I’ll need to get into 3d printing to make enclosures for stuff. I can see going there some day but no room for a makerspace in this house until the boy moves out.
You list an education qualification in your post which has nothing to do with your stated intention. Yes, you’re learned and probably smart but why do you want to be a sysadmin?
Have you ever coded anything? Do you want to learn that? Do you want to use your humanities degree to be a caring supporter of stupid system users? Are you even aware of the credo of the bastard operator from hell?
Sorry…saw your post and just wanted to take a piss…you’ll be fine if you want to do that but it’s probably not just like “installing linux” on a computer.