Gandalf’s Windows 10PE x64 Redstone 5 build 17763 version 04-30-2019
If you want the Redstone 5 version (newest)
Someone else replied to his YouTube channel and he actually replied to it (it is a first). It looks like he is only offering it via donation. So, it looks like a min of $20 to download it now. He does not say this anywhere, all his past releases were on Google drive or Torrents.