alt Hacker NewsI don't think you'd want to write an operating system in Rue. I may not include an "unsafe" concept, and will probably require a runtime. So that's some areas where Rust will make more sense.
As for Go... I dunno. Go has a strong vision around concurrency, and I just don't have one yet. We'll see.
Do you have plans for handling C FFI without "unsafe"? Will it require some sort of extension module written in C/C++/Rust?