Web Push notifications on my Bubble application

I have tried to use Google FCM on my very simple bubble.io application

I am looking for an expert in bubble.io, someone to

- Guide me through the process of adding push notifications into the web app
- Coding a call feature into the bubble code
- Coding a location feature
- Help complete in app notifications
- Additonal prompt features to be coded


The push notification

- Should mean that following a particular action of one user. E.g. pressing an interaction button, the other user would get a web notification

Context

- I am building my own prototype using bubble I will eventually get this coded in native language.

thanks,
Dom