I was going through this project over the weekend. And while I can't recall where exactly in the docs I read this, I am quite sure the author mentioned that there are various python projects but they are quite slow. Other implementations such as leela chess zero have a lot of C++ and are difficult to follow.
In fact, one of the things we want to do is maximize the performance of the Julia implementation. We hope to co-develop the compiler and ML stack to address these issues as they come up.
Not sure you are thanking jonath_laurent (original author of package of discussion) or ViralBShah (co-creator of Julia). But I concur on both accounts :D
When I see projects like this (I mean especially Julia, but also people sharing their work on packages like this) I feel very fortunate that elements of the free software movement are still alive.
In fact, one of the things we want to do is maximize the performance of the Julia implementation. We hope to co-develop the compiler and ML stack to address these issues as they come up.