TL;DR Last year, I started to work on the 2.0 version of my static type checker for JavaScript written in Rust, but, unfortunately, I see that nowadays, TypeScript won. The idea of strict type-checking for JavaScript is less popular than in 2019. Additionally, another way to bring stricter types into the web exists. So, I lost my belief that there could be an audience for such a tool and decided to close the project. To make the story short At the beginning of 2019, I worked in a small outsourci...