Update cross-hacks for unstable compatibility

cross-hacks.nix

@@ -7,6 +7,9 @@
     (self: super: {
       # Does not cross-compile...
       alsa-firmware = pkgs.runCommandNoCC "neutered-firmware" {} "mkdir -p $out";
+
+    # A "regression" in nixpkgs, where python3 pycryptodome does not cross-compile.
+    crda = pkgs.runCommandNoCC "neutered-firmware" {} "mkdir -p $out";
     })
   ];
 
@@ -23,4 +26,8 @@
   # `xterm` is being included even though this is GUI-less.
   # → https://github.com/NixOS/nixpkgs/pull/62852
   services.xserver.desktopManager.xterm.enable = lib.mkForce false;
+
+  # ec6224b6cd147943eee685ef671811b3683cb2ce re-introduced udisks in the installer
+  # udisks fails due to gobject-introspection being not cross-compilation friendly.
+  services.udisks2.enable = lib.mkForce false;
 }