AlphaJack [1] filed a request to merge mkdocs-material-extensions-git [2] into mkdocs-material-extensions [3]:
Release are now stable enough [1] https://aur.archlinux.org/account/AlphaJack/ [2] https://aur.archlinux.org/pkgbase/mkdocs-material-extensions-git/ [3] https://aur.archlinux.org/pkgbase/mkdocs-material-extensions/
