ref: f75a890bab649f57ee1f2cfffec8c74cc8b0ed49 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" }