I have a few years muscle memory with basic vim. I'm not the most efficient yet, mostly limited to hjkl, :wq, and %s//, but I know enough to edit a file on a remote system in vi and I think that's close to all I need. I use evil in emacs because I hate and don't want to learn vimscript, and because I like the concept of literate programming in org mode and want to learn it (recently tried literate programming hacky wifi config setup, found it reduced repetition and confusion).

I'll take a look at your links, but I don't think RTFMing will be super useful to me right now. I want to learn the kind of questions I should be asking. For example, I recently heard the words "selinux" and "apparmour". Now that I know them I can Google around and eventually figure out how to use apparmour, but I'm more worried about what other gotchas I've never thought of. Any advise for something less comprehensive than the docs, with more of a focus on what works nowadays?

Thank you!