add bluetooth

m/sys.nix

@@ -13,6 +13,15 @@ in
     hostname = lib.mkOption {
       type = types.str;
     };
+
+    bluetooth = {
+      enable = lib.mkEnableOption "bluetooth";
+      powerOnBoot = lib.mkOption {
+        type = types.bool;
+        default = true;
+        description = "whether to power on bluetooth on system startup";
+      };
+    };
   };
 
   config = lib.mkIf sys.enable {
@@ -23,5 +32,10 @@ in
       trusted-public-keys = ["hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="];
     };
     nix.settings.experimental-features = [ "nix-command" "flakes" ];
+
+    hardware.bluetooth = lib.mkIf sys.bluetooth.enable {
+      enable = true;
+      powerOnBoot = sys.bluetooth.powerOnBoot;
+    };
   };
 }