Hello!
I have a small question about the push notification system of expo.
I’m new to creating applications in native react and I wanted to create a small project to try this functionality.
So I added a little script in my app to get my user token (simple console.log to test). I checked that with the token I could send a notification via a postman request. All seems good! But I’m a little afraid for the rest.
What I would like is to make calls with a .net web application in order to send notifications to my users (in iOS and android).
However, the schema of the documentation makes me doubt.
I don’t understand why while the functionality is currently working I will need firebase if we already have a backend and a database?
Finally, I was also wondering something else. In order to operate the push system, I had to be logged into my expo account. How does it work in production?
Can you enlighten me on it? 
Thank you in advance