try

system-config/services/containers/netbird/default.nix

@@ -232,10 +232,13 @@
                     '';
                 };
 
-                networking.firewall = {
+                networking = {
-                    allowedTCPPorts = [ 80 ];
+                    hosts."192.168.100.11" = [ "blunkall.us" "*.blunkall.us" ];
-                    allowedUDPPorts = [ 3478 ];
+                    firewall = {
-                    allowedUDPPortRanges = [{ from = 51100; to = 56100; }];
+                        allowedTCPPorts = [ 80 ];
+                        allowedUDPPorts = [ 3478 ];
+                        allowedUDPPortRanges = [{ from = 51100; to = 56100; }];
+                    };
                 };
 
                 system.stateVersion = "25.05";