I think https://startup.nativebase.io can provide you with a good starting point and you can build from there. Worth checking out, I guess. Source: over 2 years ago

Fastlane: For mobile development, Fastlane is an automation tool that can automate the building and releasing of iOS and Android apps. - Source: dev.to / 5 months ago

The 20 testers closed beta should be very easy to automate through Fastlane and a script, I think https://www.20testers.com/ is already using this, seeing that they say "We run automated tests on 20 separate Google accounts for 14 consecutive days. The testing involves interacting with your app in a human-like manner - pressing buttons, filling in inputs, etc.". Source: 7 months ago

Fastlane is an open-source platform designed to simplify Android and iOS deployment. It allows you to automate every aspect of your development and release workflow. - Source: dev.to / 7 months ago

-> You can use codepush. -> If you like me, you can use fastlane https://fastlane.tools/ -> You can use Expo OTA without use expo too :). Source: about 1 year ago

Building your app using only GitHub Actions is possible, but it's definitely not a straightforward process. There are tools such as Fastlane and of course XCode Cloud that simplifies this process, however my goal was a solution that was not dependent on third party libraries or services. - Source: dev.to / about 1 year ago