User blog comment:Grunny/Introducing Lua, for faster and more powerful templates/@comment-24901466-20140611164333/@comment-3562424-20140612163751

Well Wikipedia's had this for a while as well so it's not really Wikia specific. Either way, this is a lot easier to use than wikitext from a quick look at it and depending on how well it's documented, I might switch over almost completely to this for parser function stuff.