anchor.diff:        sha256 = "sha256-zdMODMLdJ0smEEzNMOoIzBxt9QWVzgMvr+pwxkhtD4g=";
       };
   
  -    boehmgc = boehmgc_nixUnstable;
  +    boehmgc = boehmgc_nix;
   
       patches = [ installNlohmannJsonPatch ];
   
  
positive.code:       sha256 = "sha256-op48CCDgLHK0qV1Batz4Ln5FqBiRjlE6qHTiZgt3b6k=";
      };
  
      boehmgc = boehmgc_nixUnstable;
  
      patches = [ installNlohmannJsonPatch ];
  
  
negative.code:       sha256 = "sha256-GOsiqy9EaTwDn2PLZ4eFj1VkXcBUbqrqHehRE9GuGdU=";
      };
  
      boehmgc = boehmgc_nix;
  
      patches = [ installNlohmannJsonPatch ];
  
  