public function set()
    {
        try {
            $this->loadEnv();
            $this->setPhpIni(getenv('WP_ENV') ?: 'development');
            $this->setConfig(getenv('WP_ENV') ?: 'development');
            $this->registerMuLoaderLoader();
            $this->registerMultiSitePath();
        } catch (\RuntimeException $e) {
            die('<h1>Configuration could not be loaded.</h1>');
        }
        return $this;
    }