As someone who's been building small projects with these kinds of libraries for years now, https://x6.antv.vision/en is absolutely incredible. All the antv libraries, especially when combined, are a vast distance ahead of anything else (most importantly in their conceptual foundations and design), and I highly recommend playing with them.

Also https://rete.js.org/

Flume and ReactFlow are Fire! Thanks for sharing.

It's rarer these days, but there are still plenty of devs who don't think static types are important.

Yeah, check out Type Driven Design with Idris or this presentation https://fsharpforfunandprofit.com/ddd/

It’s as opposed to db driven design, or object oriented design

the screen, or rather whatever container is rendered on the page, is just a viewport to an underlying canvas. The canvas can be zoomed and panned, and the focus of the panning and level of the zoom can be synced across machines. People with different size or shape viewports see slightly different cropping, but they are looking at a synchronised canvas through that viewport.

What are some accessibility interfaces/strategies for art/design tools? Surely some of those can be adapted here.

What is the alternative?