System apps

[rabaimorp]

Describe the feature Install as/update system apps.

On rooted devices below android 10 or roms that don't use SHARED_BLOCKS, its possible to mount system as read-write.

An option to install apps to /system/app or /system/priv-app (or a custom systemapp location) would be really usefull to update (or install as) system apps.

An example structure for system apps: /system/app/appname/appname.apk -rw-r--r-- <links> root root <size> <date/time> appname.apk Split apps also work the same as they normally would.

For me it would be really useful for microg and my keyboard.