In Leslie Lamport's book, he refers to the local guide. I know the book's old, but Oetiker references it as well in the Not so short guide to LaTeX 2016 edition:
Each LATEX installation should provide a so-called LATEX Local Guide, which explains the things that are special to the local system. It should be contained in a file called local.tex. Unfortunately, some lazy sysops do not provide such a document. In this case, go and ask your local LATEX guru for help.
Y'all are the closest thing I know of to LaTeX gurus, so I appreciate your help. Does anyone know of where to find a working version of local.tex or better yet, a dvi or pdf version on Mac (I'm using TexLive 2017)?