Interesting project! I have been wondering why there isn’t a LISP on top of LLVM yet (except Common Lisp port, Clasp). Good that someone started to work on this.
Cool tool! Would be interesting to integrate it straight to Emacs itself. But I think it is cool to be able to copy and paste it to one's own init.el
https://github.com/SystemCrafters/rational-emacs is also a great starting point for new (and why not old) Emacs users who would like to start with at least somewhat preconfigured setup but thinks that doom emacs or spacemacs is a little too much.