Purge unattached ActiveStorage::Blobs.

When's the last time you cleaned up those ActiveStorage::Blobs hanging around without attachments?

namespace :active_storage do
  desc "Purges unattached ActiveStorage::Blobs"
  task purge_unattached: :environment do
    ActiveStorage::Blob.unattached.where(created_at: ..2.days.ago).find_each(&:purge_later)
  end
end

If you're handling direct uploads consider running this rake task periodically to keep the cloud bucket clean and avoid paying for storage that's not being used.