https://blog.wongcw.com/2018/11/17/%e6%96%b0%e6%ac%bemac-mini%e8%a9%95%e6%b8%ac%e5%8c%af%e7%b8%bd%ef%bc%9a%e8%89%af%e5%bf%83%e7%b4%9a%e5%85%a5%e9%96%80mac/