[ef4]

FWIW, Go has no VM, and neither does Rust. They compile real binaries.

And Rust gives you fine-grained memory control without sacrificing safety -- unlike the others it has no garbage collector, and instead proves allocation safety at compile time. In Rust you can know for sure exactly where your key has been copied and when it will get deallocated (to the extent that any program running in virtual memory on normal hardware can know that).

Although I agree that these are the less mature choices, and it's reasonable to reject them for that reason.