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FCM = Firebase Cloud Messaging, a messaging and notification service run by Google. https://en.wikipedia.org/wiki/Firebase_Cloud_Messaging https://en.wikipedia.

by gpvos 11mo ago

FCM = Firebase Cloud Messaging, a messaging and notification service run by Google. https://en.wikipedia.org/wiki/Firebase_Cloud_Messaging https://en.wikipedia.org/wiki/Firebase_Cloud_Messaging