Features are something that matter for products, which this isn't. This just seems like a project that someone wrote and decided to share with the world, and s

Features are something that matter for products, which this isn't. This just seems like a project that someone wrote and decided to share with the world, and show how it works with full source code. In that instance, the fact it is written in rust is relevant because, as noted in the first paragraph, the reader is expected to have a working knowledge of Rust.