Set up the basics of imperanence

hosts/nixos/common/optional/touchpad.nix

@@ -7,7 +7,7 @@
       # How fast we should scroll I think
       accelSpeed = "3.5";
 
-      # #TODO: I forgor what this did
+      # TODO: I forgor what this did
       naturalScrolling = true;
 
       # Dsiable the touchpad while typing 

hosts/nixos/common/optional/xdg-portal.nix

@@ -0,0 +1,10 @@
+{ pkgs, lib, ... }: {
+  xdg.portal = {
+    enable = true;
+    xdgOpenUsePortal = true;
+    extraPortals = [ pkgs.xdg-desktop-portal ];
+  };
+
+  # HACK: copied from @lily on discord.
+  systemd.user.services.xdg-desktop-portal.path = lib.mkAfter [ "/run/current-system/sw" ];
+}