[FREE] FSA: Combined features of Firebase Storage and Authentication 🔥

Hi!

I need to store audio files in a cloud from the app and get them from another app.
As built-in databases can store only text information, I found an extention FSA and am trying to get it work now. But the thing is I don't know anything about it at all, it's like I am trying to walk in a forest at night blindfolded :see_no_evil:

The 1st step according to the extension creator is:
" You can easily find these credentials in google-services.json file which you get after adding your app to Firebase project and adding Auth + Storage features."

I am trying to register app at Firebase. I got a json file, found "storage_bucket" and "storage_bucket" information there. But there is no "projectId", "apikey" and "oauthkey" there.
Now there is a 3rd step of registering the app, and it looks hell, I don't know what they want from me

Help me, please.