Any documentation available?

[phlummox]

I wondered if any documentation or examples showing how these crates can be used was available.

[edsko]

Not sure if you've seen this ,but probably your best starting point is https://well-typed.com/blog/2023/03/purgatory/ .

[phlummox]

Many thanks! No, I hadn't - might it be worth putting a link to it in the README?