What is a Homebrew cask?
Homebrew casks are Homebrew packages for normal Mac apps. For example, brew install --cask spotify installs Spotify through Homebrew.
How AppTidy uses Homebrew
With Homebrew integration enabled, AppTidy checks installed casks and prepares brew uninstall --cask --zap <token> when it finds a match. AppTidy opens Terminal with the command instead of running it silently.
Use review with zap cleanup
Homebrew zap rules may remove preferences, caches, and shared resources defined by the cask. Review the command and the app context before running it.