public function boot()
    {
        $source = realpath($raw = __DIR__ . '/Config.php') ?: $raw;

        if ($this->app instanceof LaravelApplication && $this->app->runningInConsole()) {
            $this->publishes([$source => config_path('mutex.php')]);
        } elseif ($this->app instanceof LumenApplication) {
            $this->app->configure('mutex');
        }

        $this->mergeConfigFrom($source, 'mutex');
    }