He's working in the routines team for LegionBuddy, but his routines will be updated to HB soon, I presume.
Almost all of them have been updated for Legion awhile ago. Look through his threads and you'll see a link to the legion profiles.
If you at least typed Tuanha in the search bar, and opened one of his routines topics, you would know that he's working on it, and there's already a beta version do download in his discord channel.