Same here, I still don't get it after 30mins.

Found it, thanks!

You can publish a translation for it, by clicking 'add new' in language selector, at the bottom.

I'm not sure why other people vote this as best practice. While I would agree that the functions are well named, this is unnecessarily complex. A few minutes of analyzing the problem statement will reveal that there is a much simpler solution.

Can't choose Elm as language. How do I help add the elm language for this Kata?

Comments should explain why, not how: https://blog.codinghorror.com/code-tells-you-how-comments-tell-you-why/