The ExecutableBooks team recently released a new version of a MyST Markdown extension for JupyterLab (v4!). Blog post:
Lots of features for scientific and technical writing:
- callouts and admonitions (works the same as JupyterBook!)
- proofs, exercises, glossaries
- figure, equation, and section numbering (with previews!)
- hover previews for cross-references, github links, and wikipedia
- inline execution for variables and widgets
- editable task lists
- rich frontmatter (title, authors, affiliations, licenses, github links!)
Works in the notebook and on markdown files.