Mac mini hard drive used as a backup disk/drive
I have a new MacBook Air and would like to set up my old mini (Mid 2011 model with 500GB drive/4GBMemory) to act as a backup drive using Time Machine. I have wiped it clean and an reinstalling High Sierra, but I'm not sure that this mini , if it doesn't match the MBAir's OS (using Ventura), how it would perform(or not) as a backup drive. Can you help with this problem? Much appreciated!