How can I send/share/backup my installed apps into an easy way to install them later? Is there an API for this? Using ADB ? Is there a root option?
As far as I know, if you copy all the apk files to a new device you’re going to be Ok.
The base.apk has the main functionality and the splits add a particular additional configuration.
I’m not quite familiar with app backup tools, not sure if there is ADB command that can help you with that. An alternative could be contacting the engineer that worked on the App Bundle project Pierre Lecesne