Walkthrough notes for creating an anywidget panel wrapping a pre-existing Typescript app

[psychemedia]

I've used a pattern elsewhere of using magics to send code from a magicked code cell to a simulator widget in its own panel.

In case it's useful to others, here are some scratch notes I made along the way of implementing this pattern in part using anywidget, assisted on the cli and coding side by claude.ai (I am not a typescript or node developer) https://github.com/ouseful-testing/anywidget-ts-expt/blob/main/NOTES.md