There are 1 repository under troff topic.
Homebrew formulae for everything Troff and man page related.
Atom support for Unix manual pages (Groff/Troff) and the historical RUNOFF language.
Kernighan & Cherry's "Typesetting Mathematics -- User's Guide (2nd ed.)" documenting eqn, retypeset with groff
Randoragon's personal, general-purpose neatroff macro package
A system supporting literate programming, meta programming, and reproducible research for Troff typesetting system.
troff's pic(1) macros to draw finite-state machines
Criação de currículo usando o Groff
Get information about HTTP status codes on your terminal. Supports man-page troff formatting for viewing via (n|g)roff.
Dither (colour) images to b/w PostScript images for embedding in troff based typesetting files
Program to write out verses of the song, "99 bottles of beer on the wall."
not official copy of http://heirloom.sourceforge.net/doctools.html