Build time should be instantaneous, just like in go or C. Instead, simple hello world in bevy / egui, can takes forever to build. Even after the first build, build time is noticable for every change . You already have to struggle with the borrow checker, adding the build time to that makes rust the worst dev experience for anything that requires adding dependencies to your project. I've been using rust for 3 years as my main programming language for hobby projects, but now I've decided to switch to C and Go until there is relevant improvements in Rust.