anchor.diff:            ];
         in
         flake // {
  +        lib = { inherit b9cRuntimeDeps; };
           packages = flake.packages // rec {
             b9c-unwrapped = flake.packages."b9:exe:b9c";
             b9c = pkgs.stdenvNoCC.mkDerivation {
               name = "b9c";
               buildInputs = [ pkgs.makeWrapper ];
  -            depsHostHost = nonHaskellBuildInputs;
  +            depsHostHost = b9cRuntimeDeps { nixpkgs = pkgs; };
               phases = [ "buildPhase" "installPhase" ];
               buildPhase = ''
                 mkdir -p $out/bin
  
positive.code:             installPhase = ''
                wrapProgram \
                  $out/bin/b9c \
                  --prefix PATH : "${pkgs.lib.makeBinPath nonHaskellBuildInputs}:${pkgs.libvirt}/libexec" \
                  --set B9_LIBVIRT_LXC "${pkgs.libvirt}/libexec/libvirt_lxc"
              '';
              meta = {
  
negative.code:         ];
          pkgs = import nixpkgs { inherit system overlays; };
          flake = pkgs.b9-vm-image-builder.flake { };
          b9cRuntimeDeps = { nixpkgs }: with nixpkgs;
            [
              cdrkit
              libvirt
  