anchor.diff:          fontFile = "Apple%20Color%20Emoji.ttc";
           name = "joypixels-apple-color-emoji.ttc";
         };
  -      x86_64-linux = rec {
  +    }.${system} or rec {
           systemTag = "nix-os";
           capitalized = "NixOS";
           ext = "ttf";
           fontFile = "joypixels-android.ttf";
           name = fontFile;
         };
  -    }.${system} or throwSystem;
   
       joypixels-free-license = with systemSpecific; {
         spdxId = "LicenseRef-JoyPixels-Free-6.0";
  
positive.code: }:
  
  let inherit (stdenv.hostPlatform) system;
  
      throwSystem = throw "Unsupported system: ${system}";
  
      systemSpecific = {
        x86_64-darwin = rec {
  
negative.code:     url = "https://cdn.joypixels.com/distributions/${systemTag}/font/${version}/${fontFile}";
      sha256 = {
        x86_64-darwin = "043980g0dlp8vd4qkbx6298fwz8ns0iwbxm0f8czd9s7n2xm4npq";
      }.${system} or "1vxqsqs93g4jyp01r47lrpcm0fmib2n1vysx32ksmfxmprimb75s";
    };
  
    dontUnpack = true;
  