I highly recommend DietPi. Along with Armbian is one of the best non vendor specific Linux distros for single board computers out there; the list of supported b

I highly recommend DietPi. Along with Armbian is one of the best non vendor specific Linux distros for single board computers out there; the list of supported boards is great, and steadily growing. I would always suggest them in place of the specific distros from the boards manufacturers pages, the reason being that when boards are declared obsolete, especially cheap ones, they usually also stop any further development and/or updates for their distros, which doesn't happen that soon with those two, so I always choose boards supported either by Armbian or DietPi. Also, they can be installed both on VMs for testing, and native on non ARM systems too, that is, PCs, which makes them good candidates for old systems, laptops etc.