Yup, Marimo seems perfectly gittable and Deepnote looks more of the status quo.
> Human-readable format: The .deepnote YAML format replaces .ipynb's messy JSON with clean, version-control and human-friendly structure for projects and notebooks. You can organize multiple notebooks, integrations, and settings into a single .deepnote project for better structure and collaboration.
I confess that picking yaml doesn't feel safe to me. As much as it annoys people, fenced formats are the way, here. And if you aren't careful, you are going to recreate XML. Probably poorly.
> Human-readable format: The .deepnote YAML format replaces .ipynb's messy JSON with clean, version-control and human-friendly structure for projects and notebooks. You can organize multiple notebooks, integrations, and settings into a single .deepnote project for better structure and collaboration.
https://marimo.io/blog/python-not-json