ref: 73c618bf4af5f96b4d1c0790662b6bd9e0a1f33e
dir: /lib/thread/spawn+netbsd.myr/
use std
pkg thread =
	type tid = uint64
	const spawn : (fn : (-> void) -> std.result(tid, byte[:]))
;;
const spawn = {fn
	std.die("unimplemented\n")
	-> `std.Err "fuck"
}