anchor.diff:      rev = version;
       sha256 = "sha256-kUYh4RmD4zRI3ZNZWl2oWcO0Ze5czLBXUgPMl/cLW/I=";
     };
  +
  +  cargoSha256 = "sha256-0AeFFJd/eMuT1eNY+Vq8MEyItKNBsAlhKKa6CsttMIY=";
   
     nativeBuildInputs = [
       makeWrapper
  
positive.code: 
  rustPlatform.buildRustPackage rec {
    pname = "wluma";
    version = "4.1.0";
  
    src = fetchFromGitHub {
      owner = "maximbaz";
  
negative.code:       --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [ vulkan-loader ]}"
    '';
  
    meta = with lib; {
      description = "Automatic brightness adjustment based on screen contents and ALS";
      homepage = "https://github.com/maximbaz/wluma";
  