I finished it, I have one complaint, and one thing that I thought was inconsistent but the hints explained it.

Anyway, very very engaging, good stuff!

Adding spacers to

move spoilers below

the expandy thing!

Spoilers below

But I know they're gonna get encrypted anyway.

The not really one: The sliced purple down the bottom right moving as one; it seemed like an arbitrary difference for specifically purple, because an earlier red puzzle was impossible if you applied the same behaviour; but the hints explained that it's because they remain selected after being severed and not just a telekinetic bond between them.

The real one: As far as I can tell, two puzzles in the top right require DIAGONAL power transmission between black blocks; this seems pretty sketchy to me, nothing else does anything diagonally, and they're only barely touching corners so it seems really unintuitive.

The two puzzles were the ones to release the purple piece and the blue piece. It seems impossible to move the purple loop across without shorting it unless you have diagonal connection. And the blue one just doesn't seem possible to bridge the gap without diagonal.