修改： hosts/desktop/configuration.nix

新文件：   hosts/desktop/hardware-configuration.nix

hosts/desktop/configuration.nix

@@ -6,4 +6,25 @@
     ../../modules/drivers/nvidia.nix
     ../../modules/drivers/amdgpu.nix
   ];
+  # Bootloader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+  
+  
+  # Enable CUPS to print documents.
+  services.printing.enable = true;
+
+  # Enable sound with pipewire.
+  services.pulseaudio.enable = false;
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+    # If you want to use JACK applications, uncomment this
+    #jack.enable = true;
+  };
+  
+  
 }