Learn how to use Firestore as a backend for NgRx. This episode combines the power @ngrx/entity with AngularFire2 State Changes for fine-grained control over your data. https://angularfirebase.com/lessons/state-changes-angularfire2-with-ngrx/
Angular Air #135: https://youtu.be/t-auGKG1yjs
NgRx: https://github.com/ngrx/platform
Firestore: https://cloud.google.com/firestore/docs/
Inspiration: https://www.booth.fi/