In a building in front of the county seat of Jinxiu Yao Autonomous County, Laibin City, Guangxi, several "post-00s" young people are standing around the computer. A thin man with messy hair and dark skin, with a pair of black-framed glasses on the bridge of his nose, is sitting in front of the computer, patiently and meticulously explaining to the apprentices how to make the design drawings of the...