The public_path function returns the fully qualified path to your application's public directory. You may also use the public_path function to generate a fully qualified path to a given file within the public directory:
<?php $path = public_path();

$path = public_path('css/app.css');
<?php             'workers' => $this->workerCount($extension),

            'taskWorkers' => $this->taskWorkerCount($extension),

            'maxRequests' => $this->option('max-requests'),

            'publicPath' => public_path(),

            'storagePath' => storage_path(),

            'defaultServerOptions' => $this->defaultServerOptions($extension),

            'octaneConfig' => config('octane'),