TIL You can use the autoremove command to remove the leftovers from a package previously installed by brew.

• List all the installed packages:

brew leaves

• Remove an installed package:

brew uninstall [package]

• Remove all the leftovers from an uninstalled package:

brew autoremove

When executing this command, pay attention to stdout. Brew does not clear some (config) files left from the autoremove command and it warnings you about that.