Lemur is a multitouch control application for iPhone and iPad, ported by Liine from the now-obsolete JazzMutant hardware device of the same name. The application comes with a rather quirky WYSIWYG editor, and while the editor’s irritating interface might not be enough to prompt efforts on a replacement, control interfaces tend to be heirarchical, highly structured and repetitive, so it makes sense to use some kind of dedicated high-level language to create them and lay them out. So: enter Sifaka.