diff --git a/nixpatches/list.nix b/nixpatches/list.nix
index 9434c314..0284cb4e 100644
--- a/nixpatches/list.nix
+++ b/nixpatches/list.nix
@@ -32,6 +32,20 @@ in [
   # etc, where "date" is like "20240228181608"
   # and can be found with `nix-repl  > :lf .  > lastModifiedDate`
 
+  # branch: wip-ffado-cross
+  (fetchpatch' {
+    title = "dbus_cplusplus: support cross compilation";
+    prUrl = "https://github.com/NixOS/nixpkgs/pull/307420";
+    saneCommit = "f59a0e42ece4a1f9af4be3bd09e488b970670207";
+    hash = "sha256-sMfLKzKVb+gyTUkeVP3irPu6YYk+TGFei6kxoZnujfE=";
+  })
+  (fetchpatch' {
+    # TODO: send out for review (after jtolnar's stuff is merged)
+    title = "ffado: support cross compilation";
+    saneCommit = "b0b57ad3c723a74d566f6420dffdb1a7d05304e2";
+    hash = "sha256-NwTZJG/+ngzR4IrYOd07KxMybHbYLmDcw4RSIrpbx3U=";
+  })
+
   (fetchpatch' {
     # see: <https://github.com/NixOS/nixpkgs/pull/284562#issuecomment-2079104081>
     title = "nixos/lemmy: fix nginx backend to proxy needed headers";
diff --git a/overlays/preferences.nix b/overlays/preferences.nix
index 32a123c9..9518b1d8 100644
--- a/overlays/preferences.nix
+++ b/overlays/preferences.nix
@@ -44,14 +44,14 @@
     squeekboard = null;
   };
 
-  pipewire = super.pipewire.override {
-    # avoid a dep on python3.10-PyQt5, which has mixed qt5 versions.
-    # this means we lose firewire support (oh well..?)
-    # N.B.: ffado is already disabled for cross builds: this is only to prevent weird `targetPackages` related stuff.
-    # try `nix build '.#hostPkgs.moby.megapixels'` for example
-    ffadoSupport = false;
-    # ffado = null;
-  };
+  # pipewire = super.pipewire.override {
+  #   # avoid a dep on python3.10-PyQt5, which has mixed qt5 versions.
+  #   # this means we lose firewire support (oh well..?)
+  #   # N.B.: ffado is already disabled for cross builds: this is only to prevent weird `targetPackages` related stuff.
+  #   # try `nix build '.#hostPkgs.moby.megapixels'` for example
+  #   ffadoSupport = false;
+  #   # ffado = null;
+  # };
 
   # pythonPackagesExtensions = super.pythonPackagesExtensions ++ [
   #   (pySelf: pySuper: {