Custom component for group hubs

Hello, I built couple of custom components for connect.hyland.com, but until now I didn't need to know the current category id.

I need to build a new component to improve the layout of our Group Hubs (default components are either "too much" or "not enough" or don't exist). I would need to get only the Group Hub description (not the one in admin, but the one that owners can edit) and the list of Group Hub owners.

I searched the API documentation but I struggle with the start: in my component, how I can get the node id, or the group hub id in which this component will work?