refactor: laptop hardware settings

hosts/Infini-SWIFT/default.nix

@@ -7,17 +7,16 @@
         boot.grub
 
         networking.wireless
-        hardware.sound
-        hardware.amdgpu
+
+        (with hardware; [
+          sound
+          amdgpu
+          laptop
+        ])
         # peripherals.printing
       ];
   };
 
-  services.xserver.libinput = {
-    enable = true;
-    touchpad.naturalScrolling = true;
-  };
-
   system.stateVersion = "21.11";
 
   networking.interfaces.wlan0.useDHCP = true;

profiles/hardware/laptop.nix

@@ -0,0 +1,8 @@
+{ ... }: {
+  services.xserver.libinput = {
+    enable = true;
+    touchpad.naturalScrolling = true;
+  };
+
+  environment.variables.LAPTOP = "True";
+}