Add missing filte

lib/nginx.nix

@@ -0,0 +1,29 @@
+_:
+
+{
+  defaultListen = let
+    listen = [
+      {
+        addr = "[::]";
+        port = 80;
+      }
+      {
+        addr = "[::]";
+        port = 443;
+        ssl = true;
+      }
+      {
+        addr = "[::]";
+        port = 81;
+        extraParameters = [ "proxy_protocol" ];
+      }
+      {
+        addr = "[::]";
+        port = 444;
+        ssl = true;
+        extraParameters = [ "proxy_protocol" ];
+      }
+    ];
+  in
+  map (x: (x // { addr = "0.0.0.0"; })) listen ++ listen;
+}