{ lib, util, ... }:
{
  checks = [
    {
      assertion = util.registry.predicates.uniquePerHost (entry: entry.value.keys);
      message = "Desktop keybinds must use unique key chords per host.";
    }
  ];

  type = lib.types.submodule {
    options = {
      keys = lib.mkOption {
        description = "Sets the key chord for this desktop keybind.";
        type = lib.types.str;
        example = "SUPER + Return";
      };

      action = lib.mkOption {
        description = "Declares the action this keybind runs.";
        type = lib.types.submodule {
          options = {
            kind = lib.mkOption {
              description = "Selects the keybind action kind.";
              type = lib.types.enum [ "exec" ];
            };

            command = lib.mkOption {
              description = "Command executed by this keybind.";
              type = lib.types.str;
              example = "ghostty";
            };
          };
        };
      };
    };
  };
}