Twitter has been doing this for a while: <a href="https:&#x2F;&#x2F;blog.twitter.com&#x2F;2010&#x2F;murder-fast-datacenter-code-deploys-using-bittorrent" rel="nofollow">https:&#x2F;&#x2F;blog.twitter.com&#x2F;2010&#x2F;murder-fast-datacenter-code-de...</a>