"AsteroidOS is built upon a rock-solid base system. Qt 5.6 and QML are used for fast and easy app development. OpenEmbedded provides a full GNU/Linux distribution and libhybris allows easy porting to most Android and Android Wear watches."
AFAIK, Hybris isn't just for the GPU and is used to port various binary Android drivers to ubuntu touch, sailfish, tizen, luneos etc as can be seen from the following chart:
Yes, it can be used any time there is a need for blob that depends on bionic and there is no open replacement. May be for touchscreen driver in this case? That's why it's such a mess with Android only hardware.
No idea why Tizen needs it though. Samsung can afford writing normal drivers for all their hardware.
"AsteroidOS is built upon a rock-solid base system. Qt 5.6 and QML are used for fast and easy app development. OpenEmbedded provides a full GNU/Linux distribution and libhybris allows easy porting to most Android and Android Wear watches."