{
  inputs = {
    nix.url = "git+ssh://git@git.c3c.cz/C3C/nix";
  };

  outputs =
    { self, nix }:
    {
      formatter = nix.formatter;

      devShells = nix.lib.forAllSystems (pkgs: {
        default = nix.lib.mkDevenvShell {
          inherit pkgs;
          inputs = {
            self = self;
            nixpkgs = pkgs;
          };

          modules = [
            {
              packages = with pkgs; [
                terraform
              ];

              scripts = {
                menu = {
                  description = "Print this menu";
                  exec = ''
                    echo "Commands:"
                    echo -n '${
                      builtins.toJSON (
                        builtins.mapAttrs (s: value: value.description) self.devShells.${pkgs.system}.default.config.scripts
                      )
                    }' | ${pkgs.jq}/bin/jq -r 'to_entries | map("  \(.key)\n" + "    - \(if .value == "" then "no description provided" else .value end)") | "" + .[]'
                  '';
                };

                fix = {
                  description = "Execute formatting tools";
                  exec = ''
                    ${nix.lib.cd_root}
                    nix fmt ./*.nix
                    terraform fmt --recursive
                  '';
                };
              };
            }
          ];
        };
      });
    };
}