Got it. I understand that can be useful to for example use tmux and connect to all nodes serial console from the bmc. If I understand it the Alpine firmware is designed to boot straight off a MicroSD card. You plug the SD card into the back of the Turing Pi, and it boots Alpine. If it crashes or you don't like it, you just pull the SD card out, and the board instantly reverts back to booting the official Turing Pi firmware. Is this correct? Then not so risky trying it out even if there are bugs? 😊