Google Exoplayer had a bug on some devices when initializing AudioTrack.

Their fix: Just retry on init failure.

So if some device decides to fail more often than Google predicted: Boom!

Exoplayer is used by rarely known apps like Youtube.

And the best of it: The one to blame is not Google or Android. The ones to blame are most likely the Hardware vendors, who think that a custom android for every whatever is a good idea.

Sign in with Apple...

* Nobody tells you that a app group can consist of a maximum of 6 apps.
* Nobody tells you that suddenly a key id is needed for constructing the signing key for signing the client_secret when other keys are added in the dev portal.
* Apple gives you email and name only (and i mean only) the first time a customer uses Sign In With Apple.
* You have no chance to reset your user during development in a way to try a fresh auth. So either create separate app ids or separate apple ids.

Sounds like fun, right?