What i do, batocera instalss on 2 partitions, one called Recalbox, wich is the boot partition with the main files, and the second one called SHARE, using a ubuntu live usb i converted the SHARE partition from ext4 to fat32, to easyly read it on my dual boot windows batocera computer, so i did a backup of the share partition whitin windows, basicaly just copied all the content, now , the way i create more computers, i did a backup of the hardrive as well ,of the batocera installation, that way i just create 2 partitions ,recalbox and share, i just copy the content from both partitions , set up the first partition to boot, and im done.
