Quiver: A modern commutative diagram editor

Out of curiosity: Is there a way to do commutative diagrams well with graphviz ? I'd instinctively prefer do do such diagrams in a declarative way and let a layout engine worry about making it look nice. However, I never had to dabble into area that makes heavy use of such diagrams – maybe it's just too hard to make look good for typesetting.

I also have a theory that it would be good to have a re-implementation of the graphviz core to it more modular and make extensions such as Quiver more feasible, as from an outside, layman's view graphviz is pretty old and does not necessarily work well in today's frameworks other than encapsulating it with lotsa layers above it.

I'm sure the graders appreciated it, too, since my handwriting/drawing skills are lacking.

Some UI troubles:

1. I would like to be able to move a node by dragging it around.

2. While the "b" key does its job to move the objects, it is very confusing because it pans the view so that the moving object is fixed, giving the impression that everything moves but the object in question.

The path forward are PWAs and the ability to use them in any browser.

Otherwise don't cry that Web has turned into ChromeOS, when everyone and their dog is shipping Chrome alongside their application.