Amazingly cool SVGs. Checked Obeservable and wondering about their pitch. I do quite some data exploration and visualization using jupyter, yet given my data is sensitive (privacy / sovereignty of the users/ study participants), it's impossible to upload them onto a server.
Seems their platform is nice for playing, yet unable to use for professional purposes?
You can give Starboard Notebook [0] a shot (a tool I'm building). It doesn't have reactivity which is as powerful as Observable - it's closer to normal web programming.
Here's an example notebook that shows p5.js use (with Python interop as a bonus): https://starboard.gg/nb/n3DYopT
It supports local or self-hosted editing and viewing [1] and is all open source.
[0]: https://starboard.gg [1]: https://github.com/gzuidhof/starboard-notebook and https://github.com/gzuidhof/starboard-cli