> But if the declaritive file is not read/understood, what is the difference?

Well the main difference is precisely that I have a clear opportunity to read and understand the declarative file.

But even if something were to sneak in there, rolling back is now trivial.

This whole thing has been about explicitly using LLM instead of learning nix. So sure, definitely agree with about the niceness of using nix in general if that is all you are saying, but also not sure what you are trying to argue for anymore.

My point is that nix is a big enabler for me to use AI to configure my system, because it provides a safer environment in which to do so.

Very cool!