More cool ideas about TSHA256.Stream.

Hopefully more meaningful continuation from #40386 (closed).

Allocate buffers statically. See, the main issue with SetLength is filling the entire 64 KBytes even if it ends up operating with 10. And remove that poor aLen <> 0 check to free up a BTB slot.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information