$FreeBSD$
If you plan on building a local copy of the FreeBSD documentation, or using
our toolchain in your own projects, please read
https://www.FreeBSD.org/doc/en_US.ISO8859-1/books/fdp-primer/
for information about the tools and formatting languages we use.
Chapter 1 has a Quick Start section, and Chapter 2 covers the software
and related items in more detail.