anchor.diff:        --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [ vulkan-loader ]}"
     '';
   
  -  cargoSha256 = "sha256-oOIL18gij7DdvgNOuaHtuyFemNBUB85Ouh/sdhKas+s=";
  -
     meta = with lib; {
       description = "Automatic brightness adjustment based on screen contents and ALS";
       homepage = "https://github.com/maximbaz/wluma";
  
positive.code:     rev = version;
      sha256 = "sha256-kUYh4RmD4zRI3ZNZWl2oWcO0Ze5czLBXUgPMl/cLW/I=";
    };
  
    nativeBuildInputs = [
      makeWrapper
  
negative.code: 
  rustPlatform.buildRustPackage rec {
    pname = "wluma";
    version = "4.1.2";
  
    src = fetchFromGitHub {
      owner = "maximbaz";
  