niveum/modules/system-dependent.nix

{
  config,
  lib,
  pkgs,
  ...
}:
with lib;
{
  options.niveum = {
    wirelessInterface = mkOption { type = types.str; };

    batteryName = mkOption { type = types.str; };

    promptColours =
      let
        colours16 = types.enum [
          "black"
          "red"
          "green"
          "yellow"
          "blue"
          "magenta"
          "cyan"
          "white"
        ];
      in
      {
        success = mkOption {
          type = colours16;
          default = "green";
        };
        failure = mkOption {
          type = colours16;
          default = "red";
        };
      };
  };
}