I believe you could have moved most of the filesystem to another device but recently they announced a load of new ways to boot too. https://www.raspberrypi.org/

I believe you could have moved most of the filesystem to another device but recently they announced a load of new ways to boot too. https://www.raspberrypi.org/documentation/hardware/raspberrypi/bootmodes/ https://www.raspberrypi.org/documentation/hardware/raspberry...