Jupyter notebooks use a rather convoluted JSON format that is difficult to read. The Jupytext package will translate a basic script or markdown formatted file into a Jupyter notebook. This potentially allows a translation from R Markdown.

Mark Wouts. Introducing Jupytext. Available in html format.

This Recommendation was added to the website on 2020-01-07 and was last modified on 2020-02-04. You can find similar pages at R software.