How much of a productivity boost would you’ve gotten from java or kotlin which provides a lot of those features with all the complexity and build times?
I did a bit of Java and Kotlin for Android development, but never for web APIs so I can't really tell, but one thing I'm sure is that Rust's build system and dependency manager (Cargo) is far more pleasant to use than the experience I had with Java.
Other great things are the ease of packaging with Docker, the low resources usage which helps to keep Heroku's bills small, and the excellent IDE support.
Other great things are the ease of packaging with Docker, the low resources usage which helps to keep Heroku's bills small, and the excellent IDE support.