We imagine the headless feel of wiki shared between either a batch test runner or a graphical DOM interface.
digraph { layout=neato; overlap = false node [style=filled] node [fillcolor=palegreen] restart click node [fillcolor=lightblue] render move panel node [fillcolor=gold] restart -> panel -> fetch -> next -> fetch -> then -> parse -> render panel -> exists -> move -> journal then -> error -> render -> journal click -> journal -> link -> panel }
Green: Actions initiated by the user or test.
Blue: Response visible to the user or test.
Gold: programmed behavior of the wiki in the federation.
We expect events to flow in a single stream with all participants producing and consuming events. We have a prototype. demo 
What about this? post