Halium

Halium is a collaborative project to unify the Hardware Abstraction Layer for projects which run Linux on mobile devices with pre-installed Android. The project aims to standardize the middleware software used by various projects to talk with android daemons and make use of hardware on installed devices. It is distributed as free and open-source software under a mix of software licenses.

History
The project was announced in 2017 and tried to pool developers from Ubuntu Touch (UBports), Sailfish OS community developers, the LuneOS project, KDE Plasma Mobile contributors, and among other developers to put an end to the fragmentation seen in their respective projects and achieve new goals jointly.

Features
The project has a planning with an overall idea which stack includes the following:


 * Linux kernel
 * Android HAL
 * Sensors
 * Camera
 * RILd
 * Libhybris
 * Android HAL interfaces like Audioflingerglue and droidmedia
 * Build system and scripts
 * GPS - AGPS from Mozilla
 * PulseAudio
 * Media codecs
 * oFono