Thank you for the great article. It's actually a 14 day test, not 20 days.
I also struggled with this requirement and got tired of having to gather 20 people every time I created an app. Therefore, I created an app that makes it easier to test each other. Thankfully, I have had over 200 downloads and have been able to contribute to the release of many apps. If you have a chance, please take advantage of it. https://play.google.com/store/apps/details?id=com.andro.zm.tools.androidtestersp...