[smolder]

Rust might be good for algorithmic trading, and is good for other real-time uses. It's good for building wasm modules. It's good for most any kind of performance sensitive or resource constrained application. If you need high throughput, low latency network services, it's good for that. CLI tools. You can build libraries to expose through C FFI, and even plug them into nodejs to do heavy lifting for existing js codebases. I think its good for anything c and c++ get used for and a lot more.

It's not that good for rapid prototyping, won't please many big enterprises who don't trust it and can't hire maintainers easily, and it can't do much on mobile phones. There are also some types of integration work where you'd be wasting your time with rust due to lack of domain specific crates.