[zdw]

This looks great, as extended commonmark support knocks down the last major pain point to switching to Sphinx for docs in the projects I've worked on.

The only remaining tooling gap is a markdown linter implemented in python.

[dmix]

Why a python linter? Text editors are usually language agnostic and separate from other tooling.

[zdw]

If the rest of the documentation workflow is in python, it would remove the need to install another entirely separate scripting language runtime to do those checks on every developer laptop, CI system, etc.