I have a question about #activitypub :
Is there a method for: Following from account xyz only post of a certain type (e.g., images) or a certain hashtag ( #abcd).

As an example: I would like to be able only to see the comics that a comic artist posts, but not their further opinion. (type is only image)

Another example from the sender side: I am a music group and I would like to invite people to: "Follow #concert_announcement for @mycrazycoolband"

Maybe @benpate knows about this?