Roy Tam says to YSITD gslin吐過的槽 https://blog.gslin.org/archives/2018/01/17/8048/digitalocean-%E7%B8%BD%E7%AE%97%E6%98%AF%E8%B7%9F%E4%B8%8A%E4%BE%86%E4%BA%86/