So it sounds like ActivityPub can perform in the following way:
Public → Public ![]()
Public → Private ![]()
Private → Public ![]()
Private → Private ![]()
This is certainly useful in many cases, such as broadcasting documentation from Meta. Unfortunately this doesn’t yet meet one of my use cases which is to post from a private instance to another private instance. From digging around, am I correct in thinking the ActivityPub Plugin is unlikely to support those use cases in the future? It looks to me like ActivityPub was designed with Public to Public in mind.