Upstream TeX Live man pages
Suppose we install the upstream TeX Live from TUG to /usr/local/texlive/20XX/ and the executables are in /usr/local/texlive/20XX/bin/amd64-freebsd.
# ln -s ../../texmf-dist/doc/man /usr/local/texlive/2024/bin/amd64-freebsd/man
This allows manpath find the man pages.
# manctl -compress /usr/local/texlive/2024/texmf-dist/doc/man/
This compress the man pages and, most important, eliminate .so's (which practically not supported by mandoc). manctl replaces .so's with hard links.