jevopi's little blog: Nicely formatted listings in LaTeX with adjusted fonts
Listings: line number separator rule - TeX - LaTeX Stack Exchange
GitHub - mewmew/lstlangs: Language definitions and styles for listings in LaTeX.
LaTeX source code listing like in professional books - Stack Overflow
Code listing - Overleaf, Online LaTeX Editor
LaTeX/Source Code Listings - Wikibooks, open books for an open world
GitHub - ghammock/LaTeX_Listings_JavaScript_ES6: The LaTeX listings package does not include a language specification for JavaScript/ECMAScript, this fills the gap in the interim.