Want to plug in my favourite https://github.com/kanaka/mal https://github.com/kanaka/mal basically make a lisp in lot of language. Really give you ther idea of

Want to plug in my favourite https://github.com/kanaka/mal https://github.com/kanaka/mal basically make a lisp in lot of language. Really give you ther idea of what is needed in build a programming language. Soemthing won't quite obvious. until you I down and write code. Example the ability to rewind, go back to a few earlier token.