Once we've computed where all the nodes & edges are we can hand it off to the Compositor to render the circles & arrows. It can definitely render straight arrows, but I believe we could also get it to render curved ones which don't bend back on themselves.
The Layout Coprocessor would also want to position text in relation to the graph layout, handing that off to the Compositor as well.
We might want to design another DSL for this, the Layout Coprocessor's primary one wouldn't be suitable.
5/5