For those of you unfamiliar with Casa OS it is a simple, easy-to-use, elegant open-source home cloud system that allows you to run self-hosted apps on your Raspberry Pi or other Linux devices.

A developer has managed to port Android 12L to the Raspberry Pi 4 Model B using an unofficial build of LineageOS 19.1.

There are many other operating systems available for Pi computers, including Ubuntu, RetroPie, Android, and Kali Linux, but Raspberry Pi OS is essentially the default software experience.