How does WatermelonDB sync work with microservices and local state management?

[L-U-C-K-Y]

Hi WatermelonDB community

We are considering of using a database for our react native app and I am having difficulties to understand how the WatermelonDB sync works within our microservice backend.

Maybe it's a fundamental misunderstanding and:

1. The synchronization database is only used among the same client across different devices to sync among themselves
2. Or, the our microservices need to update their own database and update the WatermelonDB that is running separately.

Further:

3. Is it recommended to directly alter items within WatermelonDB from within our React Native App, as we can use the reactive properties of WatermelonDB, or is it common to use a state management library such as Apollo Cache or Redux?

Thanks a lot!