Fastlane is an open-source platform aimed at simplifying Android and iOS deployment.
Fastlane lets you automate every aspect of your development and release workflow.
links
https://www.raywenderlich.com/10187451-fastlane-tutorial-for-android-getting-started
https://www.toptal.com/ios/fastlane-ios-automation
https://github.com/nccgroup/LazyDroid
https://github.com/cesards/AndroidShell
https://github.com/tmrdev/Android-Utility-Bash-Scripts
https://github.com/sujaydavalgi/android-shell-scripts
books
https://www.packtpub.com/product/continuous-delivery-for-mobile-with-fastlane/9781788398510
courses
https://www.raywenderlich.com/4967-submitting-your-app-with-fastlane
https://www.raywenderlich.com/1259223-fastlane-for-ios
https://www.udemy.com/course/android-devops-master-continuous-integration-and-delivery/