The idea sounds great! However, I see some potential issues. First, IIUC using this tool means that researchers will have to edit their code within it, which may be fine for small edits, but for larger changes, most people would prefer to rely on their favourite IDE. Moreover, if the scripts take a long time to run, this could be problematic and slow down workflows.
So, I think this “notebook” could be excellent for projects with a small amount of code, but it may be less suitable for larger projects.
Anyway, it’s a really cool project, and I’m looking forward to seeing how it grows.