Run the following command to install Netgen Content Browser & Sylius integration:
composer require netgen/content-browser-sylius
Activate the Content Browser in your kernel class with all required bundles:
...
$bundles[] = new Netgen\Bundle\ContentBrowserBundle\NetgenContentBrowserBundle();
$bundles[] = new Netgen\Bundle\ContentBrowserSyliusBundle\NetgenContentBrowserSyliusBundle();
return $bundles;