diff --git a/devices/pc/default.nix b/devices/pc/default.nix
index 844a47e4..2ec8e027 100644
--- a/devices/pc/default.nix
+++ b/devices/pc/default.nix
@@ -62,11 +62,6 @@ inputs:
       {
         cpus = [ "amd" ];
         gpu = { type = "amd+nvidia"; prime.busId = { amd = "8:0:0"; nvidia = "1:0:0"; }; dynamicBoost = true; };
-        bluetooth.enable = true;
-        joystick.enable = true;
-        printer.enable = true;
-        sound.enable = true;
-        legion.enable = true;
       };
       packages.packageSet = "workstation";
       virtualization =
diff --git a/devices/surface/default.nix b/devices/surface/default.nix
index 2cca452c..24e0b815 100644
--- a/devices/surface/default.nix
+++ b/devices/surface/default.nix
@@ -34,15 +34,7 @@ inputs:
         kernel.patches = [ "cjktty" "lantian" "surface" ];
         networking.hostname = "surface";
       };
-      hardware =
-      {
-        cpus = [ "intel" ];
-        gpu.type = "intel";
-        bluetooth.enable = true;
-        joystick.enable = true;
-        printer.enable = true;
-        sound.enable = true;
-      };
+      hardware = { cpus = [ "intel" ]; gpu.type = "intel"; };
       packages.packageSet = "desktop-fat";
       virtualization = { docker.enable = true; waydroid.enable = true; };
       services =
diff --git a/devices/xmupc1/default.nix b/devices/xmupc1/default.nix
index bb743356..345a8ccb 100644
--- a/devices/xmupc1/default.nix
+++ b/devices/xmupc1/default.nix
@@ -52,15 +52,7 @@ inputs:
         networking.hostname = "xmupc1";
         nix.remote.slave.enable = true;
       };
-      hardware =
-      {
-        cpus = [ "amd" ];
-        gpu.type = "nvidia";
-        bluetooth.enable = true;
-        joystick.enable = true;
-        printer.enable = true;
-        sound.enable = true;
-      };
+      hardware = { cpus = [ "amd" ]; gpu.type = "nvidia"; };
       packages.packageSet = "workstation";
       virtualization = { waydroid.enable = true; docker.enable = true; kvmHost = { enable = true; gui = true; }; };
       services =
diff --git a/devices/xmupc2/default.nix b/devices/xmupc2/default.nix
index baf705e3..e7d6573a 100644
--- a/devices/xmupc2/default.nix
+++ b/devices/xmupc2/default.nix
@@ -46,15 +46,7 @@ inputs:
         networking.hostname = "xmupc2";
         nix.remote.slave.enable = true;
       };
-      hardware =
-      {
-        cpus = [ "intel" ];
-        gpu.type = "nvidia";
-        bluetooth.enable = true;
-        joystick.enable = true;
-        printer.enable = true;
-        sound.enable = true;
-      };
+      hardware = { cpus = [ "intel" ]; gpu.type = "nvidia"; };
       packages.packageSet = "workstation";
       virtualization = { waydroid.enable = true; docker.enable = true; kvmHost = { enable = true; gui = true; }; };
       services =
diff --git a/modules/hardware/default.nix b/modules/hardware/default.nix
index c7bd7ef0..6a77fbdc 100644
--- a/modules/hardware/default.nix
+++ b/modules/hardware/default.nix
@@ -3,75 +3,69 @@ inputs:
   imports = inputs.localLib.findModules ./.;
   options.nixos.hardware = let inherit (inputs.lib) mkOption types; in
   {
-    bluetooth.enable = mkOption { type = types.bool; default = false; };
-    joystick.enable = mkOption { type = types.bool; default = false; };
-    printer.enable = mkOption { type = types.bool; default = false; };
-    sound.enable = mkOption { type = types.bool; default = false; };
+    bluetooth = mkOption { type = types.nullOr (types.submodule {}); default = {}; };
+    joystick = mkOption { type = types.nullOr (types.submodule {}); default = {}; };
+    printer = mkOption { type = types.nullOr (types.submodule {}); default = {}; };
+    sound = mkOption { type = types.nullOr (types.submodule {}); default = {}; };
     cpus = mkOption { type = types.listOf (types.enum [ "intel" "amd" ]); default = []; };
   };
-  config =
-    let
-      inherit (inputs.lib) mkMerge mkIf;
-      inherit (inputs.config.nixos) hardware;
-      inherit (builtins) listToAttrs map concatLists;
-      inherit (inputs.localLib) attrsToList;
-    in mkMerge
-    [
-      # bluetooth
-      (mkIf hardware.bluetooth.enable { hardware.bluetooth.enable = true; })
-      # joystick
-      (mkIf hardware.joystick.enable { hardware = { xone.enable = true; xpadneo.enable = true; }; })
-      # printer
-      (
-        mkIf hardware.printer.enable
+  config = let inherit (inputs.config.nixos) hardware; in inputs.lib.mkMerge
+  [
+    # bluetooth
+    (inputs.lib.mkIf (hardware.bluetooth != null) { hardware.bluetooth.enable = true; })
+    # joystick
+    (inputs.lib.mkIf (hardware.joystick != null) { hardware = { xone.enable = true; xpadneo.enable = true; }; })
+    # printer
+    (
+      inputs.lib.mkIf (hardware.printer != null)
+      {
+        services =
         {
-          services =
-          {
-            printing = { enable = true; drivers = [ inputs.pkgs.cnijfilter2 ]; };
-            avahi = { enable = true; nssmdns = true; openFirewall = true; };
-          };
-        }
-      )
-      # sound
-      (
-        mkIf hardware.sound.enable
-        {
-          hardware.pulseaudio.enable = false;
-          services.pipewire = { enable = true; alsa = { enable = true; support32Bit = true; }; pulse.enable = true; };
-          sound.enable = true;
-          security.rtkit.enable = true;
-          environment.etc."wireplumber/main.lua.d/50-alsa-config.lua".text =
-            let
-              content = builtins.readFile
-                (inputs.pkgs.wireplumber + "/share/wireplumber/main.lua.d/50-alsa-config.lua");
-              matched = builtins.match
-                ".*\n([[:space:]]*)(--\\[\"session\\.suspend-timeout-seconds\"][^\n]*)[\n].*" content;
-              spaces = builtins.elemAt matched 0;
-              comment = builtins.elemAt matched 1;
-              config = ''["session.suspend-timeout-seconds"] = 0'';
-            in
-              builtins.replaceStrings [(spaces + comment)] [(spaces + config)] content;
-        }
-      )
-      # cpus
-      (
-        mkIf (hardware.cpus != [])
-        {
-          hardware.cpu = listToAttrs
-            (map (name: { inherit name; value = { updateMicrocode = true; }; }) hardware.cpus);
-          boot.initrd.availableKernelModules =
-            let
-              modules =
-              {
-                intel =
-                [
-                  "intel_cstate" "aesni_intel" "intel_cstate" "intel_uncore" "intel_uncore_frequency" "intel_powerclamp"
-                ];
-                amd = [];
-              };
-            in
-              concatLists (map (cpu: modules.${cpu}) hardware.cpus);
-        }
-      )
-    ];
+          printing = { enable = true; drivers = [ inputs.pkgs.cnijfilter2 ]; };
+          avahi = { enable = true; nssmdns = true; openFirewall = true; };
+        };
+      }
+    )
+    # sound
+    (
+      inputs.lib.mkIf (hardware.sound != null)
+      {
+        hardware.pulseaudio.enable = false;
+        services.pipewire = { enable = true; alsa = { enable = true; support32Bit = true; }; pulse.enable = true; };
+        sound.enable = true;
+        security.rtkit.enable = true;
+        environment.etc."wireplumber/main.lua.d/50-alsa-config.lua".text =
+          let
+            content = builtins.readFile
+              (inputs.pkgs.wireplumber + "/share/wireplumber/main.lua.d/50-alsa-config.lua");
+            matched = builtins.match
+              ".*\n([[:space:]]*)(--\\[\"session\\.suspend-timeout-seconds\"][^\n]*)[\n].*" content;
+            spaces = builtins.elemAt matched 0;
+            comment = builtins.elemAt matched 1;
+            config = ''["session.suspend-timeout-seconds"] = 0'';
+          in
+            builtins.replaceStrings [(spaces + comment)] [(spaces + config)] content;
+      }
+    )
+    # cpus
+    (
+      inputs.lib.mkIf (hardware.cpus != [])
+      {
+        hardware.cpu = builtins.listToAttrs
+          (map (name: { inherit name; value = { updateMicrocode = true; }; }) hardware.cpus);
+        boot.initrd.availableKernelModules =
+          let
+            modules =
+            {
+              intel =
+              [
+                "intel_cstate" "aesni_intel" "intel_cstate" "intel_uncore" "intel_uncore_frequency" "intel_powerclamp"
+              ];
+              amd = [];
+            };
+          in
+            builtins.concatLists (map (cpu: modules.${cpu}) hardware.cpus);
+      }
+    )
+  ];
 }