Minimum Viable ActivityPub Implementation

[aschrijver]

In light of this discussion I would like to cross-reference this related thread:

What does ActivityStreams Conformance mean?

I see a lot of times the conformance of applications being brought up in topics, e.g: Indeed, what is “the entirety” and in that light what is Conformant? It seems to me that ‘conformance’ (as applying to AS vocab) has a very broad range: All properties are optional (including the id and type ). Most properties are defined on the root Object type, applying to all sub-types. Applications are free to define the semantics, e.g. choose to use Document for images. And this applies to activities…