How to connect angular project to multiple firebase projects ?

[ArchieLabs]

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Version info

Angular: 13.1.1

Firebase: 9.4.0

AngularFire: 7.2.1

Other (e.g. Ionic/Cordova, Node, browser, operating system) : Browser

How to reproduce these conditions

I've followed every tutorial I can find to integrate two fireabse projects into a single angular project, but nothing works. I've detailed everything in this link : https://stackoverflow.com/questions/71272920/how-to-have-multi-project-firebase-using-angularfire

I've read that the newer version offer a modular system and there is no need to use DI, how I can use this to solve this problem ?

Debug output

Expected behavior

Actual behavior

[Sapython]

Here is your solution mate solution