I stumbled upon a very interesting project. It is strange that this was not discussed here before.
The integration of this project with Grist will significantly expand the possibilities and operational capabilities.
For example: opportunity Running notebooks as applications
By analogy with Grist Forms using marimo It would hypothetically allow you to share entire apps for collaboration.
Since Marimo has WASM support, very much like the JupyterLite example Custom - Grist Help Center,
maybe it is possible to adapt that example to run a WebAssembly notebooks - marimo like on https://marimo.app/ , yet having an authenticated grist-plugin-api - Grist Help Center already available?
Hey there !
Very happy to announce that I have spent the last days creating exactly that: a marimo widget for Grist.
More details here: Marimo widget : run python notebooks inside Grist!
Have fun.