I wonder if Nix is finally OK to use with LLMs. Used to be such a pain and just hours of googling to make simple things work. I think even ChatGPT didn't work well at the time for me, but now at least the try-and-fail can be done by the LLM itself.
The learning curve is still extremely steep but after the initial 10 hours of googling it just all falls into place.
Use it as a teacher to learn to understand Nix deeply yourself. I would absolutely recommend everyone to start with the Nix Pills though, it's a great way to learn the language and understand the basic building blocks.
I've been running NixOS as a daily driver for about 5 years so I'm somewhat comfortable with it. So far, I haven't seen many odd configurations as you suggest, but I'll keep my eye out.