public function getoneConfigActivity(string $env):Renderer
    {
        if (!in_array($env, array("dev", "prod"))) {
            throw new Server500(new \ArrayObject(array("explain" => "Undefined environment $env", "solution" =>
            "Environment must be [dev or prod]")));
        }

        $file = (array) JL::open(FEnv::get("framework.config").'hosts/hosts.'.$env.'.json');
        if (!(isset($file['allowed'])) || !(isset($file['denied']))) {
            throw new Server500(new \ArrayObject(array("explain" => "Undefined key allowed or denied in host.dev.json",
                "solution" => "Add the correct tags [allowed, denied]")));
        }

        $allowed = ((array)$file['allowed']);
        $denied = ((array)$file['denied']);


        return ((new Renderer())->jsonRenderer(array("code" => 200,
            "results" => array("allowed" => implode(";", $allowed), "denied" => implode(";", $denied)))));
    }