1. Click Mode: Hand and allow camera access.
2. Move your index finger to aim at a grid space.
3. Pinch your thumb and index finger together to activate the current tool.
Place tool: pinch to place a block.
Select tool: pinch on a block to select it. Hold the pinch and move your hand to drag it.
Erase tool: pinch on a block to erase it.
Tip: use Cursor Mode anytime if hand tracking feels too sensitive.