As mentioned, The Push notifications in DND only have user ID
Not something like
send notification ( Title: Your Title, Text: Your Text , Merge Many notifications: false;)
I wish the app could run in the background. ( all screens selected by me)
Anyway, while downloading, the app has to be converted into Java\kotlin, so you could provide a way to edit that code.
It would be nice to collect device IDs for authentication.