The latex part of the asciimint. Still a very personal code complex but one might look up things in the code. Generally, the new macros and environment have \myxxxx \begin{myxxxx} or \amXxXxx and \begin{amXxXxx} naming convention.
A docment should be like asciimint_article.tex or asciimint_book.tex, calling the asciimint package. asciimint_graphics.sty is called automatically by asciimint; it has got separated for pure graphic tex files that do not need the rest of the package.
The whole package is based on tufte-latex https://www.ctan.org/pkg/tufte-latex