Show HN: Rift (Flexible Translator) – Build Languages in Days, Not Years

Friend, I don't think a readme constitutes a "Show HN"

Sorry, but 6 months to learn YACC? And 6 months to build a prototype?

Parsing is the easy part of creating a language, and you're seriously overstating the complexity of YACC. You can write your own YACC-like parser generator in far less than the time you claim it takes to learn YACC.