> From the look of things, most of it. Just look at the decision to use markdown (md) for github instead of the ubiquitous troff which is installed by default o

> From the look of things, most of it. Just look at the decision to use markdown (md) for github instead of the ubiquitous troff which is installed by default on every *nix machine to date so you can read man pages. This is particularly unfortunate because md -> man page converters always use the -man set of macros. -mdoc could encapsulate a lot of semantic information[1,2], which also factors into apropos(1) on mandoc[3], but obviously that isn't possible to reasonably capture from Markdown. [1] https://man.openbsd.org/OpenBSD-current/man7/mdoc.7 https://man.openbsd.org/OpenBSD-current/man7/mdoc.7 [2] cf. kristaps's "Practical UNIX Manuals", https://manpages.bsd.lv/mdoc.html https://manpages.bsd.lv/mdoc.html [3] https://man.openbsd.org/apropos#Macro_Keys https://man.openbsd.org/apropos#Macro_Keys