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Nim compiles to C and then runs GCC (not LLVM) to compile the binary. Overall, it's much faster than Go and Rust.

I get that Nim can be faster than Go but I don't see how it can be faster than Rust, could you please elaborate as to why?

They probably mean the compilation is much faster than Rust.

I was referring to compilation time... given the question.

Is transpiled C readable?

If you disable all runtime checks, like integer overflows, range checks, etc..., stack traces and debug information (-d:danger) it's readable yes.

It is. It's just not very pleasant to read due to the autogenerated variable names.

For my small learning projects, on old hardware, I’d say about the same as Go.

Pretty good. The actual compilation is via clang, so there's a lot of heavy lifting done by that.

So basically nim actually compiles .nim -> .c -> binary

It’s good to note that the C/C++ generated by Nim compiles much faster than normal C/C++ code since they don’t include a lot of headers.