{ config, pkgs, unstable, unstable-small, lib, ... }:

{
  options.services.keyd-qol.enable = lib.mkEnableOption "keyd service for quality-of-life improvements";

  config = lib.mkIf config.services.keyd-qol.enable {
    services.keyd.enable = true;

    services.keyd.keyboards = {
      default = {
        ids = [ "*" ];
        settings = {
          main = {
            capslock = "overload(control, esc)";

            insert = "S-insert";
          };
        };
      };

      sun = {
        ids = [
          # HHKB Hybrid
          "04fe:0021"
        ];
        settings = {
          main = {
            control = "overload(control, esc)";

            insert = "S-insert";
          };
        };
      };

      kensington_trackball = {
        ids = [
          # Slimblade Pro
          "047d:80d4" # Bluetooth
          "047d:80d6" # 2.4Ghz
          "047d:80d7" # Wired
        ];
        settings = {
          main = {
            # MIDDLE / MOUSE1
            # LEFT   / RIGHT
            middlemouse = "middlemouse";
            mouse1 = "rightmouse";
            leftmouse = "leftmouse";
            rightmouse = "back";
          };
        };
      };
    };
  };
}