Meet Guillaume Bog, better known as Guibog – or to Chinese people, Gui Da Ye (Uncle Ghost). A Frenchman who has spent two decades in Beijing, Guibog lives a life powered by code and creativity. By day, he's a programmer; by night, a robot maker and an upcycler. From scrap circuit boards and mechanical odds and ends, he conjures up quirky, whirring sound machines that are as unpredictable as they are mesmerizing.