You can't avoid learning another programming language if you want to describe your setup in such a way that a computer can recreate it. But you can easily fall

You can't avoid learning another programming language if you want to describe your setup in such a way that a computer can recreate it. But you can easily fall into the trap of having a bazillion underspecified informal languages if you try cobbling together bash scripts, dockerfiles, and whatever other thing you need ad-hoc. Nix is probably a good investment in that light. My personal concern is that it moves rather fast, and some things should run themselves and stay secure without being touched more than once a year.