@darius oh sweet, sorry for the lazy question :-)

@darius uh one more dumb question - where exactly are the fields of https://www.w3.org/ns/activitystreams#Event defined? I just see the link back to https://www.w3.org/TR/activitystreams-vocabulary/#dfn-event which has an example

There is a schema.org event, https://schema.org/Event

but the activitystreams event just inherits all properties from Object so its basically just a type?