[galangalalgol]

I'm not sure what your use case is that only rust and gonare options, but is unusual.

NIM supports concurrency and is as portable as the c and js it can generate to.

C#/F# work on x86 and arm which covers most targets today. And supports concurrency. And is situationally more performant than go.

I can't speak to the other languages mentioned, but they all seem quite similar to go as well, except for haskell.

Rust is more like c, c++, zig, ada etc.

[krn]

I see Rust and Go as the best high-performance high-concurrency programming languages today, and choose between Rust and Go depending on the bottleneck (Rust – CPU / RAM, Go – I/O).