Suppose a macOS application using NSPersistentDocument (thus CoreData). All user data is stored in <documentName>.<myApp>
files.
In 2020, if I were to develop an iOS version of the application, how could I provide the functionality to the users to sync these documents between macOS and iOS?
From my research, it looks like using CloudKit is not the way to go for a NSDocument-based app.
Thanks!