It always amazes me how important and useful open source software is often supported by small team doing heroic efforts. I found it very interesting to learn about QuantStack and what they do to support Jupyter data science communities.
I'm personally keeping a close eye on Jupyter Lite [1]. which uses WASM to run python and popular data science libraries (e.g. numpy, pandas) completely in the browser.
[1] https://blog.jupyter.org/jupyterlite-jupyter-%EF%B8%8F-webas...