anchor.diff:  
     # Script to add secret files to the initrd at bootloader update time
     initialRamdiskSecretAppender =
  -    pkgs.writeScriptBin "append-initrd-secrets"
  +    let
  +      compressorExe = initialRamdisk.compressorExecutableFunction pkgs;
  +    in pkgs.writeScriptBin "append-initrd-secrets"
         ''
           #!${pkgs.bash}/bin/bash -e
           function usage {
  
positive.code:   # the initial RAM disk.
    initialRamdisk = pkgs.makeInitrd {
      name = "initrd-${kernel-name}";
      inherit (config.boot.initrd) compressor prepend;
  
      contents =
        [ { object = bootStage1;
  
negative.code:          }
  
          (cd "$tmp" && find . -print0 | sort -z | cpio -o -H newc -R +0:+0 --reproducible --null) | \
            ${compressorExe} ${lib.escapeShellArgs initialRamdisk.compressorArgs} >> "$1"
        '';
  
  in
  