/**
* Extract configuration and override the default DataWriter on startup
*
* @param EnvironmentEvent $event The start event
*/
public function onStart(EnvironmentEvent $event)
{
$configValues = $event->getConfigValues();
$configuration = new Configuration($configValues);
$event->setConfigValues($configuration->get());
$event->setDataWriter(new FilesystemDataWriter($event->getDataWriter(), $configuration));
}