In as many languages as possible, ‘hagen’ must be spammed without exiting, followed by a new line and must always be lowercase.
You can add a missing language by forking and submitting a pull request with your change.
The newly added language filenames must follow the format hagen.:ext, where :ext is the language file extension.
If this file already exists and not the same language, you can prefix the extension with some form of specification. i.e. Node.js becomes hagen.node.js.