Beautiful presentation! The green PCB board, the glowing wires and the fire at the source look fantastic, and a circuit puzzle built on numbers is a fresh idea. The red and green output readout is also easy to understand. One suggestion: picking up pieces needed a long press for me, since a normal drag did nothing (I saw the note about the Wavedash fix), and the rotate buttons are small and far from the cell. A clearer tutorial about which piece orientation is needed would also help. Nice work!