https://blog.wongcw.com/2019/10/08/%e8%98%8b%e6%9e%9c%e7%99%bc%e5%b8%83macos-catalina%e6%ad%a3%e5%bc%8f%e7%89%88%ef%bc%9a%e6%96%b0%e7%89%b9%e6%80%a7%e5%a4%9a%e5%9c%96%e6%90%b6%e5%85%88%e7%9c%8b/