added K40 laser software

hosts/Lenni/default.nix

@@ -13,6 +13,7 @@
   desktop = {
     enable = true;
     dev.enable = true;
+    laser.enable = true;
     windowManager = "niri-session";
     hyprland.enable = false;
   };

hosts/Lillie/default.nix

@@ -13,6 +13,7 @@
     enable = true;
     autostart.enable = false;
     emulation.enable = true;
+    laser.enable = true;
 
     hyprland = {
       hardware.Lillie = true;

modules/default/common/desktop/default.nix

@@ -5,6 +5,7 @@
     ./autostart.nix
     ./boot.nix
     ./dev.nix
+    ./k40.nix
     ./keyboard.nix
     ./nfs-client.nix
     ./nix-ld.nix

modules/default/common/desktop/k40.nix

@@ -0,0 +1,12 @@
+{ lib, config, pkgs, ... }:
+lib.mkIf config.desktop.laser.enable {
+
+  services.udev.extraRules = ''
+    SUBSYSTEM=="usb", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="5512", MODE:="0666"
+  '';
+  
+  environment.systemPackages = with pkgs; [
+    k40-whisperer
+  ];
+
+}

modules/default/common/desktop/udev.nix

@@ -1,6 +1,3 @@
 { ... }:
 {
-  services.udev.extraRules = ''
-    SUBSYSTEM=="usb", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="5512", MODE:="0666"
-  '';
 }

modules/default/common/options.nix

@@ -18,6 +18,11 @@
         type = lib.types.bool;
       };
 
+      laser.enable = lib.mkOption {
+        default = false;
+        type = lib.types.bool;
+      };
+
       windowManager = lib.mkOption {
         default = "Hyprland";
         type = lib.types.str;