I definitely want a good demo video on the page.
but listen, I get it, I tried literally 50 different such tools, they all suck. Nobody in their sane mind decides to write one if you don't have a good reason. Certainly not in Idris :-)
but we have good reasons:
1) compositional theories of diagrams exists 2) such diagrams can express many "topologically equivalent" expression in the same diagram, this is a huge win! and very different from (AFAIK) all existing node-based editors 3) use cases in decentralised computing require fault-free tools that work like this
but really, I think generally applicable usable 2d-syntax exists...