We are building openapi-based stuff in Rust at Oxide, and my coworkers gave a talk on the hows and whys: https://www.youtube.com/watch?v=EmSjZbSzA3A

One thing I hear from people more broadly is that Rust’s lower resource usage, in today’s cloud based environments, translates directly to bottom-line savings. It’s not so much speed directly as it is less CPU and memory utilization, letting you do more with less. That matters when you’re paying for what you use.