I just gave the early version a spin. Very neat, bravo! 

I am looking forward to play with it some more - I am especially curious to see how one can use it in tandem with local data.

Two things which tripped me up during installation:

• I overlooked the requirement for npm/Node.js in the instructions, perhaps make that a bit bigger ;-)
• At least for me it does not work in Jupyter lab, just in the classic notebooks, so that should probably be mentioned.

cheers

Jonas