GroundDB 2.0.0 Example

I am looking for a working example of GroundDB in its newest version (At this time 2.0.0-rc.4 - I discovered this new version by pure accident, while browsing some answers in this forum). The github repo is an absolute mess and I can’t make sense of anything between the old documentation, the staggering number of branches with confusing names and the bits and pieces of code here and there.

What I’m looking for mostly is an example showing how to handle grounding existing collections, and how subscription would be then handled.

Thank you.