aosp-devs.org

There are many projects that extend AOSP in various ways. Here we divide them into:

Board support: the code required to allow Android to run on a given board or family of boards
Generic HALs: hardware support that applies to multiple boards
Android distros: modifications to the Android framework and applications

Board support

The Devboards for Android project (https://devboardsforandroid.linaro.org/en/latest/ adds support to upstream AOSP for several boards including:

BayLibre have support packages for

Other projects:

Generic Qualcomm SDM845 device support: https://github.com/aospm/android_device_generic_sdm845
- support for several handsets based on the SDM845

drm_hwcomposer https://gitlab.freedesktop.org/drm-hwcomposer/drm-hwcomposer - DRM/KMS based HWComposer implementation used on many devices
Force Feedback haptics hal: https://github.com/aospm/external_vibrator-ff - A generic haptics HAL which supports drivers using the force feedback API via input class devices.
TinyHAL audio HAL: https://github.com/CirrusLogic/tinyhal - Generic Audio HAL on top of tinyalsa and tinycompress. Configured via XML
Lights HAL: https://github.com/SoMainline/android-lights-hal - control for backlight and LEDs
Keymaster/Gatekeeper on OP-TEE: https://github.com/linaro-swg/kmgk
Camera: https://libcamera.org/index.html

LineageOS: https://lineageos.org/ - a free and open-source operating system for various devices, based on the Android mobile platform.
Replicant: https://replicant.us/ - an attempt to get rid of all non-open components. While it has fallen far behind upstream, it has some interesting beginnings and starting points of open drivers and firmware
GrapheneOS: https://grapheneos.org/ - Security and privacy minded AOSP fork for Pixel devices
CalyxOS: https://calyxos.org/ - Privacy minded fork of AOSP with MicroG support
/e/ OS: https://e.foundation/e-os/ - Privacy minded LineageOS fork
GloDroid: https://glodroid.github.io/ - AOSP distro for Orange Pi and other boards