Not really though. He keeps pointing out that he wants to integrate with Rust libraries, but it's actually pretty easy to write integrations between Rust and Python[1][2]. If that were the actual reason, there is a much better path of least resistance available.

The only other type of given argument for moving to Rust was that the author enjoyed it, so it appears to be another "Rust is super cool" rewrite. It really speaks to the power of developer experience. People are willing to rewrite their entire application to be more comfortable. I know I am, only my language of choice is Common Lisp.

1: https://saidvandeklundert.net/learn/2021-11-18-calling-rust-...

2: https://www.infoworld.com/article/3664124/how-to-use-rust-wi...