modified setup.nix so that the proxy functions take cfg

modules/servers/maloja.nix

@@ -23,7 +23,7 @@ in
       volumes = [ "${config.my.containerData}/maloja:/mljdata" ];
     };
     services.nginx.virtualHosts."${cfg.host}" = lib.mkIf cfg.enableProxy (
-      setup.proxyReverse cfg.hostName cfg.port // { }
+      setup.proxyReverse cfg // { }
     );
   };
 }