https://blog.wongcw.com/2021/10/23/ipod%e4%ba%8c%e5%8d%81%e5%91%a8%e5%b9%b4%e6%85%b6%ef%bc%9atony-fadell%e5%9b%9e%e9%a1%a7%e5%8a%a0%e7%8f%ad%e4%ba%94%e5%80%8b%e6%9c%88%e7%98%8b%e7%8b%82%e8%b6%95%e5%b7%a5%e6%9c%9f/