[rnhmjoj]

The language is so simple you can learn all of it in a day. Read through chapter 15 in the nix[1] manual and that's it.

To me it doesn't feel weird at all: I can't think of any feature that was new or surprising when I started using it and I am not the biggest expert of functional programming. You have to learn more about the standard environment and tools if you want to start contributing to nixpkgs and write your own packages but if you only care about configuring your system nix is as difficult to learn as say, JSON.

[1]: https://nixos.org/nix/manual/#ch-expression-language

[atemerev]

It is definitely not difficult to learn, just somewhat hard to read and visually unappealing :)