Peppermint OS On My Old iMac 12,1

Explain why and explain the process. Explain chose distro with no systemd. Peppermint Devuan based on Debian. Wanted the old fashioned feel in a modern world. I even kept the spinning rust hard disk in the iMac to prove to myself we can make it work using low IO performance tricks on Linux, the basis of Peppermint OS. This site was created on that machine.