not gonna lie, this broke my brain a bit, puzzlers are not my thing
I like the visuals simple shapes but with reflections and and some eye candy background too. The undo in particular is impressive.
Got a lot of talos principle meets factorissimo (factorio mod) vibe playing through it.
as a point of improvement, entering/exiting the cubes could have some animation or flourish to better communicate where you just came in or exited from, it was a little disorienting for me in some cases.