Can you run Kali Linux on any kind of libre computer? Cunt you use the arm raspberry pi 3 image and write it into an SD card Is the boot loader going to be a issue.
Kali is Debian + packages. We do not provide pre-made images for Kali but taking an UEFI aarch64 image from Kali should work for boards with UEFI. If the board doesn’t have UEFI like Le Potato, then you need to use libretech-flash-tool to burn the bootloader into the image before flashing it.