For this, I believe we should:

• add a new homebrew_casks root configuration
• copy the brew pipe into a new one and make the required changes so it generates casks instead of formulae
• deprecate the old brews
• document how to migrate - e.g. user will need to delete old formula from the /Formula folder, new default should be Cask

This is a relatively big issue, but most of the heavy lifting is done already in the brews pipe.

Discussed in https://github.com/orgs/goreleaser/discussions/5563