I have played around with the Crafting Interpreters book. Maybe the author oversimplifies a bit, but it seems with yacc and lex that nothing is really stopping

I have played around with the Crafting Interpreters book. Maybe the author oversimplifies a bit, but it seems with yacc and lex that nothing is really stopping anyone from making their own language and compiler. It always seemed like black magic. But the same could be said about books, nothing is stopping you from writing a book except good ideas, story, and structure.