Simple taggle for Bluetooth only ON that you can add to shortcuts for quick use or very convenient way to use it with Situations app from car mode profile.
* It have auto-switch OFF
* default checking time is 3 minutes

USAGE:
* When you switch ON, it will check if your Jolla connected to any device, and if in 3 min it not connected, app will switch BT to OFF.
* If in this time period your phone connected to any device, app continue to check every 3 min if connection exist. And when your Jolla disconnected from another device, app will switch BT to OFF.
* You can change default checking time interval (3 min) by running this command as ROOT, for example:

echo 5m > /usr/share/openrepos-bluetoothforcar/time

where 5m = 5 minutes
You also can do this via file manager like Filetug (as Root).
* Update or reinstallation of app will save YOUR default time interval

Beware, use it on your own risk !!!

Donation are welcome :)