Minimal ActivityPub update client

Today I finished morph, a client for posting ActivityStreams2 Update activities to an endpoint. The server handles this update activity however it wants, but the obvious thing to do is take the object of the activity and make the indicated changes.

So far it:

• Doesn't have proper authentication, just a field to enter in a key that the server uses to verify me.
• Doesn't do endpoint discovery, so I have to type that in as well.
• Only understands how to display ActivityStreams2 Collections, and only knows how to edit items within the Collections.
• Specifically only knows how to add name, published and tags to items in a Collection.

Will be expanding its object editing abilities soon.

Code on github. See also: Minimal ActivityPub update endpoint.