Google Play forced me to remove the permission QUERY_ALL_PACKAGES which means that every app to be tested will have to be added to the manifest of AppConfigApp. I'll look into automating it. Up to then, please send me the content provider authorities of the apps to test to appconfigapp@gmail.com and I'll add it manually.
Use the same build to point your app to prod or staging by reconfiguring it with this app.
Please be aware, that this app only works with an app under test that includes the library AppConfig.
The app and the related library is developed as an open source project. For details see the following link.
https://github.com/PRosenb/AppConfigApp/