cask "birdfont" do
  if MacOS.version <= :el_capitan
    version "2.19.4"
    sha256 "013d9c42c2252b57079453bd27e4c18dbbc09eda55563ff1516fd079c0499f76"
  elsif MacOS.version <= :mojave
    version "4.3.0"
    sha256 "cc0055ab21b127c50acca9aa14475f9dbff299ce4c4908a7e6246657f2729f62"
  else
    version "4.5.1"
    sha256 "827299e3d0486ccaf512c44bd23fffb3b4ca09413ddd1d43414f02e18945dcf1"
  end

  url "https://birdfont.org/download/birdfont-#{version}-free.dmg"
  appcast "https://birdfont.org/purchase.php"
  name "BirdFont"
  homepage "https://birdfont.org/"

  depends_on macos: ">= :el_capitan"

  app "BirdFontNonCommercial.app"
end