How to Solve Diagonal Puzzle
Here is a Minor Hint:
The solution is actually very simple. There’s no super complex list of steps and pushing stuff around to get to the goal, though assembling the thing you need to is a bit tricky with the very little space you have.
Here is a Major Hint:
When I said the solution is simple, I meant it, though that doesn’t mean it isn’t a difficult puzzle by any means. It actually is possible to make a sky machine that can go in both directions, and it’s comprised of only two separate “pieces”, one of which is a single block. I’m certain you can figure it out from there, since you’ve made it this far.