[auraham]

As others pointed out, the app uses wxWidgets for the UI and Elixir for backend, along with Phoenix. I think similar apps can be created using wxWidgets with Python by replacing Phoenix with another framework, maybe Flask or Django.

[throwawaymaths]

Yeah you could but it hasn't been done. I've struggled with jupyter/ipython for a decade. CRDTs like automerge and OTs exist, but they're not in jupyter.

It's simply put, not that easy to manage distributed live state in a sane fashion with python (see openstack), the programming model of the underlying language puts obstacles in your way. Meanwhile Erlang was created by a physicist who understood that the speed of light is a thing and consistency of data across distances is a real issue.