https://blog.wongcw.com/2022/09/01/%e5%8a%a0%e5%b7%9e%e4%ba%8c%e6%ac%a1%e6%b2%96%e6%93%8abitlicense%e5%8a%a0%e5%af%86%e8%b2%a8%e5%b9%a3%e7%9b%a3%e7%ae%a1%e6%b3%95%e6%a1%88%e5%8f%aa%e5%be%85%e5%b7%9e%e9%95%b7%e5%9c%a8%e6%9c%88%e5%ba%95/