internal fun <T> interleave(
  a: Iterable<T>,
  b: Iterable<T>,
): List<T> {
  val ia = a.iterator()
  val ib = b.iterator()

  return buildList {
    while (ia.hasNext() || ib.hasNext()) {
      if (ia.hasNext()) {
        add(ia.next())
      }
      if (ib.hasNext()) {
        add(ib.next())
      }
    }
  }
}

// TODO check read only options for creating lists

00000090  00 78 98 8f 70 ae 47 6d  45 3b c4 af fc 88 bd 88  |.x..p.GmE;......|
000000a0  7b cc 8a 78 86 ff 86 25  2d 21 28 f2 c5 d7 4b 61  |{..x...%-!(...Ka|
000000b0  c0 ea 67 38 4c d0 d6 6f  fc a0 69 62 98 6f ac 29  |..g8L..o..ib.o.)|
000000c0  29 13 34 7a f0 2d 1b 7e  52 42 6f f1 64 ed 7f 47  |).4z.-.~RBo.d..G|
000000d0  69 82 9b 9d 19 7b 3a c5  54 51 c8 8f 4c 9e 42 a7  |i....{:.TQ..L.B.|