nixos-config/modules/options/default.nix

{ lib, ... }:
with lib; {
  options.eboskma.var = {
    mainUser = lib.mkOption {
      type = lib.types.str;
      default = "erwin";
      description = ''
        The main system user
      '';
    };

    workSystem = lib.mkOption {
      description = "Is this system for work or home?";
      type = lib.types.bool;
      default = false;
    };
  };
}