anchor.diff:    x86_64-linux-version = "4.17.0";
     x86_64-linux-sha256 = "07ccms58pq27ilkyhcf6cgwb7qrddwil5kgy8yv95ljikqzi5rxi";
   
  +  aarch64-darwin-version = "4.17.0";
  +  aarch64-darwin-sha256 = "1a5crmnbz8ng3z2pk5zw17dds9d5fyir4rkvv611fn858kq5fv46";
  +
     version = {
       x86_64-darwin = x86_64-darwin-version;
  +    aarch64-darwin = aarch64-darwin-version;
       x86_64-linux = x86_64-linux-version;
     }.${system} or throwSystem;
   
  
positive.code:           url = "${base}/releases/macos/${version}/prod/x64/Slack-${version}-macOS.dmg";
            sha256 = x86_64-darwin-sha256;
          };
          x86_64-linux = fetchurl {
            url = "${base}/linux_releases/slack-desktop-${version}-amd64.deb";
            sha256 = x86_64-linux-sha256;
  
negative.code:     homepage = "https://slack.com";
      license = licenses.unfree;
      maintainers = with maintainers; [ mmahut ];
      platforms = [ "x86_64-darwin" "x86_64-linux" "aarch64-darwin"];
    };
  
    linux = stdenv.mkDerivation rec {
  