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      services.nginx = {
        enable = true;
        virtualHosts  = {
          "domain1.com" = {
             default = true;
             root = "/var/www/domain1";
          };
          "domain2.com" = {
             serverAliases = [ "www.domain2.com" ];
             root = "/var/www/domain2";
          };

        };
      };