anchor.diff:      maintainers = with maintainers; [ artturin ];
       platforms = platforms.linux;
     };
  -}
  +})
  
positive.code: 
    doCheck = true;
  
    meta = with lib; {
      description = "C implementation of the Varlink protocol and command line tool";
      homepage = "https://github.com/varlink/libvarlink";
  
negative.code: , meson
  , ninja
  , python3
  , nix-update-script
  , testers
  }:
  
  stdenv.mkDerivation (finalAttrs: {
    pname = "libvarlink";
    version = "23";
  
    src = fetchFromGitHub {
      owner = "varlink";
      repo = finalAttrs.pname;
      rev = finalAttrs.version;
      sha256 = "sha256-oUy9HhybNMjRBWoqqal1Mw8cC5RddgN4izxAl0cgnKE=";
    };
  
    nativeBuildInputs = [ meson ninja ];
  