Add darwin configuration into

hosts/darwin/system/partials/system.nix

@@ -0,0 +1,30 @@
+{ self, ... }:
+{
+  # Add ability to use TouchID for sudo
+  security.pam.services.sudo_local.touchIdAuth = true;
+
+  system = {
+    stateVersion = 6;
+    configurationRevision = self.rev or self.dirtyRev or null;
+    defaults = {
+      controlcenter.BatteryShowPercentage = true;
+      dock = {
+        show-recents = false;
+        tilesize = 30;
+        autohide = false;
+        orientation = "bottom";
+      };
+      finder = {
+        ShowHardDrivesOnDesktop = false;
+        ShowMountedServersOnDesktop = false;
+        ShowExternalHardDrivesOnDesktop = false;
+        ShowRemovableMediaOnDesktop = false;
+        FXRemoveOldTrashItems = true;
+        NewWindowTarget = "Home";
+      };
+      loginwindow = {
+        GuestEnabled = false;
+      };
+    };
+  };
+}