Help with my mobile break remider app (structure and notifications)

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:bust_in_silhouette: Asked By GravityLoop

I’m creating a mobile break reminder app. It’s closer to a traditional app than a mobile game but still has some game elements like progress and highscores.
I’m wondering how i should structure it, like for instance dividing each page (home, profile, teams, highscores and so on) into different scenes.
There will be some variables like break progress that i want to show across several pages. Is it appropriate to use global variables to show them across scenes in that case?

And is it possible to create push notifications (that the user can accept, skip, snooze?) connected to my countdown timer?

(Normally i wouldn’t make a traditional app on Godot, but it was required for this work)