libcmark-gfm-dev 0.29.0.gfm.2-1+really.0.29.0.gfm.0ubuntu1 (amd64 binary) in ubuntu jammy

 cmark-gfm is the GitHub flavor of the cmark C reference
 implementation of CommonMark, a rationalized version of Markdown
 syntax with a spec. This package provides the development files for
 the gfm library