https://blog.wongcw.com/2021/06/17/%e5%85%a8%e5%8a%9f%e8%83%bdlinux%e5%b9%b3%e6%9d%bf%e9%9b%bb%e8%85%a6jingpad-a1%e9%a0%86%e5%88%a9%e4%b8%8a%e7%b7%9aindiegogo%e7%9c%be%e7%b1%8c/