anchor.diff:        echo "yarn dev"
         ''}
       '';
  -  };
  +  });
     daedalus = daedalusShell.overrideAttrs (oldAttrs: {
       shellHook = ''
          if [ ! -f "$CARDANO_TLS_PATH/ca.crt" ] || [ ! -f "tls/client/ca.crt" ]
  
positive.code:           echo ${launcher-config.tlsPath}
          ''
        }
        export DAEDALUS_INSTALL_DIRECTORY="$DAEDALUS_DIR"
        export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -I${nodejs}/include/node"
        yarn install
        ln -svf ${pkgs.electron}/bin/electron ./node_modules/electron/dist/electron
  
negative.code:     rm $out/wallet-topology.yaml
      cp ${demoTopologyYaml} $out/wallet-topology.yaml
    '';
    daedalusShell = pkgs.stdenv.mkDerivation (rec {
      name = "daedalus";
      buildInputs = [ nodejs yarn ] ++ (with pkgs; [
        nix bash binutils coreutils curl gnutar
  