Hi Ella,

> Right, I'd forgotten about the solving engine. Is that licenseable?

Yup, there are some libraries that can be licensed. But the most commonly used one tends to be rather expensive.


> Having a more robust history and having it available programatically
> would be great. Honestly, it'd be nice to have it explicitly represented
> in the UI, too -- if you had an available, editable history, that might
> actually do a lot of the same work you'd lean on a constraint system
> for, at least in the trivial cases.

Yup, I would like to have a UI for the history... But it is a bit early yet, I'm not quite sure how it will all shake out.

- Michael