A programmer from a major factory almost died suddenly in 1996. After resigning, he moved into a courtyard house and vowed never to write code again. It turns out that the neighbors in the courtyard are all technical novices - the uncle looked for her when his radio broke, the aunt looked for her when his cell phone was stuck, and the brother looked for her when his computer had a blue screen. She couldn't bear it anymore and started a programming class in the courtyard to teach aunts and uncles how to use smartphones. Three months later, the uncle's short video became popular, and the aunt's Taobao store earned over 10,000 yuan a month, and she became the chief technical consultant of Siheyuan.