final: prev: {
  libguestfs-appliance-nix = prev.libguestfs-appliance-nix.overrideAttrs (oldAttrs: {
    installPhase = ''
      mkdir -p $out
      cp ${final.linuxPackages.kernel}/Image $out/kernel
      cp ${oldAttrs.initrd} $out/initrd
      cp ${oldAttrs.rootImage} $out/root
      echo "Fixed appliance built from NixOS packages (9p-backed)" > $out/README.fixed
    '';
    meta.platforms = [ "aarch64-linux" ];
  });
}