In 90% of the cases it is as easy as modifying the earlier version’s version and hash. I think learning nix from outside-in is perhaps easier - grep for something you are looking for, and as if it were a language and you are a small kid, imitate that.
Though I will give you that there is enough complexity in specifying which nixpkgs/flake gets built, where is it places, etc as is, especially with the `nix-\w+` vs `nix \w+` variants being slightly different, to the point that I always have to look it up in the man page/in my history whether I need -A and the like.
Though I will give you that there is enough complexity in specifying which nixpkgs/flake gets built, where is it places, etc as is, especially with the `nix-\w+` vs `nix \w+` variants being slightly different, to the point that I always have to look it up in the man page/in my history whether I need -A and the like.