No it's not. That's why you haven't seen many alternate languages.
Something else is that the semantics of the Go language itself are purposely limited in ways that help build an efficient runtime easily. So even if you could target the Go runtime easily, it would impose limits to what the language can do as I understand.
Something else is that the semantics of the Go language itself are purposely limited in ways that help build an efficient runtime easily. So even if you could target the Go runtime easily, it would impose limits to what the language can do as I understand.