vhostLocal = { localPort, addlLocationConfig ? {} }: {
          forceSSL = true;
          enableACME = true;
          listen =  [ {addr = "localhost"; port = customPorts.nginxHttp; ssl = false; }
          { addr = "localhost"; port = customPorts.nginxHttps; ssl = true; }
        ];
        locations = {
          "/" = {
            proxyPass = "http://localhost:${(toString localPort)}";
            extraConfig = ''
              proxy_set_header Host $host;
            '';
          };
        } // addlLocationConfig;
      };