class Serf < Cask version '0.6.3' sha256 'c406463486282ae9c6dc974a5d8688b8908a1fb6af46a2c1aca3785c16ac590b' url "https://dl.bintray.com/mitchellh/serf/#{version}_darwin_amd64.zip" homepage 'http://www.serfdom.io/' license :unknown binary 'serf' end