Neat idea! It's fun that straight-line clears can still be used for stack shaping, while making the connection feels like a sort of "angular" clear.
A quick note: the rotation controls are backwards from what is described in the instructions. Currently, Z performs a CW rotation (rotate right) and X performs a CCW rotation (rotate left). This may be what you meant by the comment regarding non-standard keybindings, but just wanted to make sure it was known that the instruction text describes uninverted rotation keys.