I think bluetooth should be available for android apps like how gps is shared. For now we cannot play next song from NewPipe playlist in car entertainment system. So I have to fall back to a bare metal android phone while driving.
unlike other services where we can provide virtual services, hci needs a multiplexer and it works very differently. there is no working modern public implementation of this either
whenever we get around to it then perhaps it could be implemented but i don’t know if this is even possible
Instead of the virtual device, would it be possible to expose the hardware directly to the container? A toggle to use bluetooth either in host or in waydroid