anchor.diff:    src = fetchurl {
       url = "https://launcherupdates.lunarclientcdn.com/Lunar%20Client-${version}.AppImage";
       name = "lunar-client.AppImage";
  -    sha256 = "bb85a62127a9b3848cc60796c20ac75655794f1d3cd17cb6b5499bbf19d16019";
  +    sha256 = "1pmblnnvs5jv5v7y5nnxr3liw9xfp5h6l44x7pln8kr9zg85dzma";
     };
   in appimageTools.wrapType1 rec {
     inherit name src;
  
positive.code:     cp -r ${appimageContents}/usr/share/icons/ $out/share/
    '';
  
    meta = with lib; {
      description = "Minecraft 1.7.10 & 1.8.9 PVP Client";
      homepage = "https://www.lunarclient.com/";
      license = with licenses; [ unfree ];
      maintainers = with maintainers; [ zyansheep ];
      platforms = [ "x86_64-linux" ];
    };
  }
  
negative.code: { appimageTools, lib, fetchurl, makeDesktopItem }:
  
  let
    name = "lunar-client";
    version = "2.6.0";
  
    desktopItem = makeDesktopItem {
      name = "Lunar Client";
      exec = "lunar-client";
      icon = "lunarclient";
      comment = "Minecraft 1.7, 1.8, 1.12, 1.15, and 1.16 Client";
      desktopName = "Lunar Client";
      genericName = "Minecraft Client";
      categories = "Game;";
  