Flutter, Fastlane, and Firebase App Distribution: Статья в которой описывается опыт внедрения в Flutter приложение Fastlane и Firebase App Distribution.
https://chimon.hashnode.dev/flutter-fastlane-and-firebase-app-distribution-ck6lb1yz101ged9s1ml6ngvfn
https://chimon.hashnode.dev/flutter-fastlane-and-firebase-app-distribution-ck6lb1yz101ged9s1ml6ngvfn