Sin­ce we are in the pro­ce­ss of adding a plu­gin re­po for Niko­la, I wanted to add a sim­ple plu­gin the­re so that we can show how it wo­rks.

So he­re it is. You use this:

.. graphviz::

   digraph foo {
       "Idea" -> "tap tap tap" -> "Code";
   }

And you get (a­s­su­ming gra­ph­viz is ins­ta­lle­d, and this plu­gin is ins­ta­lle­d, etc.) this:

b'\n\n\n\n\n'

It's sti­ll ve­ry ru­di­men­ta­r­y, but it ai­ms to be com­pa­ti­ble wi­th Sphi­n­x's im­ple­men­ta­tion even thou­gh the de­tails of how it's do­ne va­ry grea­tl­y.