anchor.diff:            exit 0
         fi
   
  -      for platform in ${lib.concatStringsSep " " meta.platforms}; do
  -        update-source-version "blackfire" "0" "${lib.fakeSha256}" "--system=$platform"
  -        update-source-version "blackfire" "$NEW_VERSION" "--system=$platform" --ignore-same-hash
  +      for platform in ${lib.escapeShellArgs meta.platforms}; do
  +        update-source-version "blackfire" "0" "${lib.fakeSha256}" --source-key="sources.$platform"
  +        update-source-version "blackfire" "$NEW_VERSION" --source-key="sources.$platform"
         done
       '';
     };
  
positive.code: , common-updater-scripts
  }:
  
  let
    version = "2.8.1";
  
    sources = {
      "x86_64-linux" = fetchurl {
        url = "https://packages.blackfire.io/debian/pool/any/main/b/blackfire/blackfire_${version}_amd64.deb";
        sha256 = "znaM00jM6yrpb+bGTxzJUxViCUzv4G+CYK2EB5dxhfY=";
      };
      "i686-linux" = fetchurl {
        url = "https://packages.blackfire.io/debian/pool/any/main/b/blackfire/blackfire_${version}_i386.deb";
        sha256 = "QIY4qGm333H5MWhe3CIfEieqTEk8st5A7SJHkwGnnxw=";
      };
      "aarch64-linux" = fetchurl {
        url = "https://packages.blackfire.io/debian/pool/any/main/b/blackfire/blackfire_${version}_arm64.deb";
        sha256 = "eZbKoKYC2tt4Rxn5OJr7iA1aJlYFC0tpRmbLq7qSrIU=";
      };
      "aarch64-darwin" = fetchurl {
        url = "https://packages.blackfire.io/blackfire/${version}/blackfire-darwin_arm64.pkg.tar.gz";
        sha256 = "tn2vF3v7KfF7CfWqyydL5Iyh5tP9Tez87PJH+URgSIw=";
      };
      "x86_64-darwin" = fetchurl {
        url = "https://packages.blackfire.io/blackfire/${version}/blackfire-darwin_amd64.pkg.tar.gz";
        sha256 = "CRFlnqpX4j2CMGzS+UvXwNty2mHpONOjym6UJPE2Yg4=";
      };
    };
  in
  stdenv.mkDerivation rec {
    pname = "blackfire";
    inherit version;
  
    src = sources.${stdenv.hostPlatform.system};
  
    nativeBuildInputs = lib.optionals stdenv.isLinux [ dpkg ];
  
    dontUnpack = true;
  
  
negative.code:     sourceProvenance = with sourceTypes; [ binaryNativeCode ];
      license = licenses.unfree;
      maintainers = with maintainers; [ jtojnar shyim ];
      platforms = [ "x86_64-linux" "aarch64-linux" "i686-linux" "x86_64-darwin" ];
    };
  }
  