Nope, I’m using iOS version. But even for iOS unified push tech does exist. unifiedpush.org
https://github.com/KoalaSat/pokey
Do you mean something like Pokey? But in Keychat, the receiving address keeps rotating, so Pokey can’t be used.
Discussion
We’re also keeping an eye on unifiedpush.org
But something stops you to use it as an option to fcm/apns pushes?
Other than the fact that we don’t know how stable it is, there are no other obstacles.
As for message notifications, the most challenging issue is the following.👇
Suppose we can start trying? ‘Cos GrapheneOS indeed don’t have Google services.
We’ll give it a try once we’ve finished the tasks we currently have on hand.