diff --git a/hosts/mhelton-fw13/default.nix b/hosts/mhelton-fw13/default.nix
index bf27b999..0908d60e 100644
--- a/hosts/mhelton-fw13/default.nix
+++ b/hosts/mhelton-fw13/default.nix
@@ -78,9 +78,21 @@
     sbctl
     slack
     pkgs.gnomeExtensions.appindicator
+    gnome-network-displays
   ];
   services.udev.packages = [ pkgs.gnome-settings-daemon ];
 
+  networking.firewall.trustedInterfaces = [ "p2p-wl+" ];
+
+  networking.firewall.allowedTCPPorts = [
+    7236
+    7250
+  ];
+  networking.firewall.allowedUDPPorts = [
+    7236
+    5353
+  ];
+
   programs.obs-studio = {
     enable = true;
     plugins = with pkgs.obs-studio-plugins; [
diff --git a/overlays/default.nix b/overlays/default.nix
index 9ab691f0..11cdef2b 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -31,6 +31,19 @@ let
         };
       });
 
+      gnome-network-displays = prev.gnome-network-displays.overrideAttrs (oldAttrs: {
+        postPatch = (oldAttrs.postPatch or "") + ''
+          # Find the nd-stream.c file and patch it
+          echo "Looking for nd-stream.c file..."
+          find . -name "nd-stream.c" -type f | while read -r file; do
+            echo "Found file at: $file"
+            substituteInPlace "$file" \
+              --replace "XDP_OUTPUT_MONITOR | XDP_OUTPUT_WINDOW | XDP_OUTPUT_VIRTUAL" \
+                        "XDP_OUTPUT_MONITOR"
+          done
+        '';
+      });
+
       pythonPackagesExtensions = prev.pythonPackagesExtensions ++ [
         (self: super: {
           # skip additional tests that seem to require network access