Good luck on the journey! What I meant is that over time, you’ll realize that what you did was probably not the most elegant was to do something, at least that’s my experience with my config. Like, I started with a flake with an explicit config for each machine (basically multiple nixosConfigurations) and then turned it into a lib with functions to turn a set of hosts from json into an attribute set (kind of a simple inventory done). My last efforts that are still ongoing (cough) are splitting my NixOS modules off into a separate flake using flake-parts.

I do understand you meant having the stuff that your need work, I just wanted to hint that the language is very powerful and as such, most configurations have room for improvement, as in learning to do things more efficient or do things that weren’t possible before.