https://blog.wongcw.com/2021/04/10/freebsd-arm64%e6%88%90%e7%82%bafreebsd-13%e7%9a%84tier-1%e7%b4%9a%e5%88%a5%e5%b7%a5%e7%a8%8b/
FreeBSD/arm64成為FreeBSD 13的Tier 1級別工程