anchor.diff:          ];
           pkgs = import nixpkgs { inherit system overlays; };
           flake = pkgs.b9-vm-image-builder.flake { };
  -        nonHaskellBuildInputs = with pkgs;
  +        b9cRuntimeDeps = { nixpkgs }: with nixpkgs;
             [
               cdrkit
               libvirt
  
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:           ];
        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 = b9cRuntimeDeps { nixpkgs = pkgs; };
              phases = [ "buildPhase" "installPhase" ];
              buildPhase = ''
                mkdir -p $out/bin
  