I have a lot of experience with Rust, so take this with a grain of salt, but as long as a library exists, I feel about 85% as productive with Rust as I do Ruby. While it takes slightly longer initially, I save a lot of time writing less tests and virtually never debugging.<p>It&#x27;s a much younger ecosystem, so there&#x27;s not always a library though. Then it clearly takes longer, because there&#x27;s a lot more to do. We do have a pretty respectable number of libraries for our age though, I&#x27;m constantly surprised at what DOES exist.