It won't work. Notifications right now use Google's push notification servers and are only available in the PLAY edition.

There is a bounty open: https://nostrbounties.com/b/naddr1qq9rzd3c8qerjdf3xc6qyg842eu2586a24znd4zkkya74vz0vdkk8l0d6kr0uw9yewwwfryshspsgqqqw4rsr2a82u

But few people seem interested in coding it yet.