{
  lib,
  config,
  self,
  inputs,
  withSystem,
  ...
}:
{
  perSystem =
    {
      self,
      lib,
      pkgs,
      system,
      inputs',
      ...
    }:
    {
      # https://github.com/Mic92/nixfmt-rs
      formatter = pkgs.nixfmt-rs;

      devShells = {
        default = pkgs.mkShellNoCC {
          # buildInputs = [ ];
          shellHook = ''
            unset NIX_CONFIG
            export PATH="${inputs'.nix-enraged.packages.nix-enraged.override { cacheMode = "stable"; }}/bin:$PATH"
          '';
        };
      };
    };
}