anchor.diff:             ];
   
         buildInputs =
  -        [ curl libsodium openssl sqlite xz bzip2 nlohmann_json
  +        [ curl libsodium openssl sqlite xz bzip2
             brotli boost editline
           ]
           ++ lib.optionals stdenv.isDarwin [ Security ]
  
positive.code: 
      boehmgc = boehmgc_nixUnstable;
  
      inherit storeDir stateDir confDir;
  
    });
  
negative.code:     ];
    });
  
    # master: https://github.com/NixOS/nix/pull/5536
    # 2.4: https://github.com/NixOS/nix/pull/5537
    installNlohmannJsonPatch = fetchpatch {
      url = "https://github.com/NixOS/nix/pull/5536.diff";
      sha256 = "sha256-SPnam4xNIjbMgnq6IP1AaM1V62X0yZNo4DEVmI8sHOo=";
    };
  
  in rec {
  
    nix = nixStable;
  