Timothy, this is really good to see! I have been using Julia as my main programming language for some years now and all of my codes generate output with org markup. Now I could in principle use it for the input as well which could be quite helpful.
As an aside, Julia 1.7 was released two or three days ago. Works very well. None of my codes has broken, which is always a good sign. -- : Eric S Fraga, with org release_9.5.1-231-g6766c4 in Emacs 29.0.50 : Latest paper written in org: https://arxiv.org/abs/2106.05096