First of all, thank you for the great job.
I have an Xcode proj with 8 targets, each apps has its bundleid, appid and languages. In that case, time saved thanks to fastlane would be even more important for me but how to handle this ? For now I have my custom script and I'm thinking to migrate if there is built-in support in fastlane.
I'd like to create some configuration in a centralized file "Appfile" contening all the necessary information and be able to directly call the required one (Note: Appfile and Deliverfile for now look to share some duplicate information like app_identifier).
I found this issue fastlane-old/deliver#67, it is a tips but It won't work for the multiple appstore metadata I think and it is not an official support in "fastlane".
Would you think about such an architecture support ?
Thanks for your help !