
For imports, it is better to use ‘modulesPath’ than rely on <nixpkgs> being correctly set. Some users may not have <nixpkgs> set correctly. In addition, when ‘pure-eval=true’, <nixpkgs> is unset.
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.