Some Groff examples for me and anyone else confused as to how to use the typesetting libraries. I would just use a container via Podman or Docker to run a Linux distro that has GNU Groff available in ...
The result is sent to standard output, and can be processed further with available 'troff' tools with 'ms' macro package, preferrably GNU groff_ms(7), to produce typeset PostScript-, PDF-, HTML- or ...