@jimmycuadra Just for the record, what we ended up using was docker-osx-dev [1]. It allows you to work with Virtualbox, with instant file changes being rsynced to the docker host. It’s extremely convenient since it parses your docker-compose.yml and only syncs the shared volumes. Only drawback is that syncs only in one direction so you will have to add some scripts to “docker cp” if you want to bring back any changes done on your containers 
Looking forward for that performance improvement. Once that is fixed, it’s time to leave Virtualbox !
Thanks for this fantastic work !