code: func SeedRandomly() {
  	var seed int64
  	if err := binary.Read(cryptorand.Reader, binary.LittleEndian, &seed); err != nil {
  		panic(err)
  	}
  	rand.Seed(seed)
  }
docs: // SeedRandomly seeds global math/rand RNG with bytes from crypto-random source.
  //
  // It is a good idea to call this in main() of some process to guarantee that
  // multiple instances of this process don't go through the exact same PRNG
  // sequence (go runtime doesn't seed math/rand itself).