anchor.diff:  { stdenv
   , fetchFromGitHub
  +, unstableGitUpdater
   , cmake
   , callPackage
   
  
positive.code:     platforms = platforms.all;
    };
  }
  
  
negative.code:   preConfigure = "cd dev";
    enableParallelBuilding = true;
  
    passthru = {
      tests.can-run-hello-world = callPackage ./test-can-run-hello-world.nix {};
      updateScript = unstableGitUpdater { };
    };
  
    meta = with stdenv.lib; {
  