What's Installed?
brew list
brew leaves (what packages have no dependencies on them)
port installed
port echo leaves (the crud left behind from no-longer-installed packages)
Uninstalling
sudo port uninstall inactive
sudo port uninstall leaves
sudo port uninstall leaves
brew cleanup
brew uninstall
Reference pages
mac ports :
https://guide.macports.org/chunked/using.common-tasks.html
brew:
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