ha-client-website/beta-testing.md

The biggest contribution you can make for HA Client is to take part in testing and leave your feedback or report bugs in a form of issue on github. Use log viewer to provide some logs.

Bug tracker: https://github.com/estevez-dev/ha_client/issues

Discussion: Home Assistant community and Discord

To join beta testing you need to register for it on Google Play or just go to the app by direct link