Now that things are a-changin' with Docker Desktop, I wanted to give podman a try.
I'm running macOS 11.6 Big Sur and have Homebrew installed: -
Homebrew/homebrew-core (git revision 161852c41e5; last commit 2021-10-01)
Homebrew/homebrew-cask (git revision 486624192d; last commit 2021-10-01)
so simply installed podman via brew install podman.
Having installed, I checked the version of podman thusly: -
API Version: 3.4.0
Go Version: go1.17.1
Built: Thu Sep 30 19:44:31 2021
API Version: 3.3.1
Go Version: go1.16.6
Built: Mon Aug 30 21:46:36 2021