Fix for server config

shared/server-configuration.nix

@@ -33,6 +33,7 @@ in
     ./modules/user/main_user.nix
   ];
   
+  config = {
     # Enable flakes feature
     nix.settings.experimental-features = [
       "nix-command" "flakes"
@@ -74,4 +75,5 @@ in
     # networking.firewall.allowedUDPPorts = [ ... ];
 
     system.stateVersion = "23.11"; # Did you read the comment?
+  };
 }