2 macOS on same disk
I have a Mac mini 2014 running Monterey.
I would like to be able to run a 32-bit macOS on this machine so that I can use older apps. However I have run into failures with trying to do it myself.
I don't currently have access to a flash drive but can get one if needed; solutions without one would be preferable.
Thank you in advance.
Mac mini, macOS 12.6