I would like to provide Cygwin packages for the Linux kernel man pages
project, for those who are concerned about interoperability and
portability, from Michael Kerrisk (http://man7.org/), who also releases
man-pages-posix, and recently released Linux man-pages 5.13.
I do it for my own use anyway, to have the latest docs, just to save
flipping to Linux from Cygwin or Windows.
The install location is under the standard /usr/share/man/linux/ which
can only by default be used by specifying
$ man -m|--systems linux ...
but can also be added explicitly to a users' MANPATH or alias e.g.
$ alias man='man -m man,linux'
or swap the order to prioritize Linux, or for parallel installs add each
in your preferred order.
I have Linux 5.05-5.13 packages available on Google drive:
https://drive.google.com/drive/folders/1r3vhlN4fsCAGAtxpVD9PJPVpahCmnIPE
More information is available at the project home page:
https://www.kernel.org/doc/man-pages/
release blog:
https://linux-man-pages.blogspot.com/
mailing list:
https://lore.kernel.org/linux-man/
Sources are at:
https://github.com/mkerrisk/man-pages
and
https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git
All Linux distros publish these pages.