I would like to know if there's a way to create a reusable bundle that depends on a public bundle in my case, OneupFlysystemBundle ?
By adding OneupFlysystemBundle to my bundle's composer.json I can see that it's downloaded and present in the vendor folder.
I want to only include my own bundle in the AppKernel (which has a dependency on OneupFlysystemBundle)
Probably the best way is to use Symfony Flex. Which allows you to use recipes. An alternative would be to use symfony-bundle-dependencies