anchor.diff:          url "$_urlBase/dev/release/${revisions['dev']}/${_ia32Files['mac']}"
           sha256 "${hashes['dev'][_ia32Files['mac']]}"
         end
  -    elsif OS.linux?
  +    elsif OS.linux? && Hardware::CPU.intel?
         if Hardware::CPU.is_64_bit?
           url "$_urlBase/dev/release/${revisions['dev']}/${_x64Files['linux']}"
           sha256 "${hashes['dev'][_x64Files['linux']]}"
         else
           url "$_urlBase/dev/release/${revisions['dev']}/${_ia32Files['linux']}"
           sha256 "${hashes['dev'][_ia32Files['linux']]}"
  +      end
  +    elsif OS.linux? && Hardware::CPU.arm?
  +      if Hardware::CPU.is_64_bit?
  +        url "$_urlBase/dev/release/${revisions['dev']}/${_x64Files['linux-arm']}"
  +        sha256 "${hashes['dev'][_x64Files['linux-arm']]}"
  +      else
  +        url "$_urlBase/dev/release/${revisions['dev']}/${_ia32Files['linux-arm']}"
  +        sha256 "${hashes['dev'][_ia32Files['linux-arm']]}"
         end
       end
     end
  
positive.code: const _x64Files = {
    'mac': 'sdk/dartsdk-macos-x64-release.zip',
    'linux': 'sdk/dartsdk-linux-x64-release.zip',
  };
  const _ia32Files = {
    'mac': 'sdk/dartsdk-macos-ia32-release.zip',
    'linux': 'sdk/dartsdk-linux-ia32-release.zip',
  };
  
  Future<String> _getHash256(
  
negative.code:       url "$_urlBase/stable/release/${revisions['stable']}/${_ia32Files['mac']}"
        sha256 "${hashes['stable'][_ia32Files['mac']]}"
      end
    elsif OS.linux? && Hardware::CPU.intel?
      if Hardware::CPU.is_64_bit?
        url "$_urlBase/stable/release/${revisions['stable']}/${_x64Files['linux']}"
        sha256 "${hashes['stable'][_x64Files['linux']]}"
      else
        url "$_urlBase/stable/release/${revisions['stable']}/${_ia32Files['linux']}"
        sha256 "${hashes['stable'][_ia32Files['linux']]}"
      end
    elsif OS.linux? && Hardware::CPU.arm?
      if Hardware::CPU.is_64_bit?
        url "$_urlBase/stable/release/${revisions['stable']}/${_x64Files['linux-arm']}"
        sha256 "${hashes['stable'][_x64Files['linux-arm']]}"
      else
        url "$_urlBase/stable/release/${revisions['stable']}/${_ia32Files['linux-arm']}"
        sha256 "${hashes['stable'][_ia32Files['linux-arm']]}"
      end
    end
  
  