ref: 3c7cf598f83d27ac3b98e0061075052f9f9baaf1 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" }