Aren't the dependency options `:python`, '`:ruby`, '`:perl` etc added for the purpose of ensuring a formula's dependencies are met? The only related issue I can find is #19659 about removing dependencies in core packages. Would you be kind enough to point me to the guideline / discussion on language dependencies?

Asking because remotebox depends on quite a number of Perl modules; if language dependencies are not allowed then this pull request should be close.