```ruby
cask 'backblaze' do
  version :latest
  sha256 :no_check

  url 'https://secure.backblaze.com/mac/install_backblaze.dmg'
  name 'Backblaze'
  homepage 'https://www.backblaze.com/'
  license :commercial

  installer :manual => 'Backblaze Installer.app'
end
```

Add uninstall and zap stanzas for Backblaze
user
```ruby
cask 'backblaze' do
  version :latest
  sha256 :no_check

  url 'https://secure.backblaze.com/mac/install_backblaze.dmg'
  name 'Backblaze'
  homepage 'https://www.backblaze.com/'
  license :commercial

  installer :manual => 'Backblaze Installer.app'

  uninstall :launchctl => [
                           'com.backblaze.bzserv.plist',
                           'com.backblaze.bzbmenu.plist'
                          ],
            :delete    => '/Library/PreferencePanes/BackblazeBackup.prefPane'
  zap       :delete    => [
                           '/Library/Backblaze.bzpkg',
                           '~/Library/Application Support/com.apple.sharedfilelist/com.apple.LSSharedFileList.ApplicationRecentDocuments/com.backblaze.backblazebackup.sfl',
                           '~/Library/Application Support/com.apple.sharedfilelist/com.apple.LSSharedFileList.ApplicationRecentDocuments/com.backblaze.bzdoinstall.sfl',
                           '~/Library/Logs/BackblazeGUIInstaller'
                          ]
end
```
assistant