treewide: abstract away common configs into common/

apple/macbook-pro/10-1/default.nix

@@ -1,16 +1,19 @@
 { lib, pkgs, ... }:
 
 {
-  imports = [ ../../. ];
+  imports = [
+    ../.
+    ../../../common/pc/laptop/ssd
+  ];
 
+  # TODO: boot loader
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
+  # TODO: drop
   hardware.opengl.driSupport32Bit = true;
 
   services.xserver = {
-    libinput.enable = lib.mkDefault true;
-
     # TODO: we should not enable unfree drivers
     # when there is an alternative (i.e. nouveau)
     videoDrivers = [ "nvidia" ];