I've used Common Lisp for this purpose. You get instant results without even having to reload. You can simply compile a single function while the code is runnin

I've used Common Lisp for this purpose. You get instant results without even having to reload. You can simply compile a single function while the code is running. I did a talk about this a few years back: https://www.youtube.com/watch?v=bl8jQ2wRh6k https://www.youtube.com/watch?v=bl8jQ2wRh6k