Installing hass on Android phone running Android11R

Greetings every my username is admin2 I need to learn how to install a instance for hass to be setup correctly on my Android11R Smartphone plz help thank you very much.have a great night

Hello @Admin2,
As far as I know, there is currently no way to really install Home Assistant on an Android phone.
If you meant to control your existing HA from your phone and/or let it use your phones sensors, the Home Assistant Companion App can do this.

Best regards