So, Android Q is out in Beta and on Sunday I did the first tour with Kurviger on it. Let’s just say I was lucky that I had a power bank with me 
Unfortunately, as soon as I turned the screen off (seconds after) Kurviger did not receive a precise location anymore. The voice was telling me that it was recalculating the route constantly. When turning the screen on it took less then a second for the dot to jump back to the correct position.
So there’s a reason I called this thread “preparation”, and not “Problems!!”, I’m using a Beta version, it’s totally fine. Just dropping you a hint that it’s probably because you’re missing a permission:
<manifest>
<uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />
</manifest>
It says in the text that if you don’t target Api 29 then it should auto-add the permission but… when has the docu ever stopped an Android Beta from misbehaving… so I guess this is the reason for my troubles
Best of luck with the new version!