I installed Android on an Echo Show, and it gave my smart display a new life

Select Echo Show models can now be jailbroken, allowing you to ditch Fire OS for Android and install any app under the sun.

Download Lineage OS 23.2 ROM released with Material 3 Expressive

Android 16 with Material 3 Expressive. Enjoy Android 16 with the new Material 3 Expressive design, enhanced privacy, and bloatware-free performance for your phone.
Android Authority

Lineage OS custom ROM gets an Android 14 upgrade with the new Lineage OS 21

Lineage OS has been updated to Android 14 with the release of Lineage OS 21. Lineage OS 21 brings a new gallery app called Glimpse and improves the look and functionality of several other stock apps.
Liliputing

Fire OS hack lets you install custom launchers on Fire TV and tablet devices, disable OTA updates, and install blocked apps

Amazon’s Fire TV and Fire Tablet devices run a modified version of Android called Fire OS that allows you to stream music and video from Amazon, Netflix, and a wide ...