Pug (previously Jade) was a precursor to web frameworks. Technologies we use and enjoy today were built by previous decades of stumbling in the dark with one feature and hammering it into formidable shape. A nod to Handlebars while we're on the topic.
Recently found myself saying in conversations that, "Markdown is arguably one of the most valuable file type we have; media, documents, code blocks of almost any language, ... all in one place for further processing."
└── Dey well; Be well