, it is highly recommended to use the official, free distribution for stability and compatibility. While 32GB is the recommended minimum size for a micro SD card to allow for future updates and a decent ROM collection, the base OS image is much smaller. The official Batocera image for the Raspberry Pi 3 (including 3B and 3B+) is free and open-source. Official Batocera Download Page
, it is highly recommended to use the official, free distribution for stability and compatibility. While 32GB is the recommended minimum size for a micro SD card to allow for future updates and a decent ROM collection, the base OS image is much smaller. The official Batocera image for the Raspberry Pi 3 (including 3B and 3B+) is free and open-source. Official Batocera Download Page