I am trying to implement a push notification method for an app using RoR as my backend and Expo React Native for the front.
I saw the Expo SDK for Rails but it looks unmaintained (last update 3years ago).

What solutions do you use to enable the push notifications for both Android and iOS?

Thanks a lot to anyone that may have something to guide me in the right direction

Not sure if I should go with the Expo route for notification handling or something like SNS.

Any ideas will be much appreaciated