Hi there.
Working with open data and educational tools for data-literacy since quite some time I was always missing a tool which provides a low-barrier (=> no-code) entry into "data xyz" (analyzis, visualization, you name it ...). I worked with Orange3, Knime, Jupyter notebooks and some "free" tools from industry. All of them require coding skills, registration, money etc
When I came across Danfo.js I thought this might be a good way to build such a tool. And in fact, it looks very promising.
By chance, I've jsut seen today you had this idea in chapter8 of the book as well, but the code there doesn't compile and I think it is not very advanced.
So, I would appreciate comments on Daten.Cafe
https://github.com/digital-codes/datencafe
Keep in mind, this will be a non-commercial entry-level tool, but might still be interesting.