anchor.diff:  
         Font Manager is NOT a professional-grade font management solution.
       '';
  -    license = stdenv.lib.licenses.gpl3;
  +    license = licenses.gpl3;
       repositories.git = https://github.com/FontManager/master;
  -    platforms = stdenv.lib.platforms.unix;
  -    maintainers = [ stdenv.lib.maintainers.romildo ];
  +    platforms = platforms.unix;
  +    maintainers = [ maintainers.romildo ];
     };
   }
  
positive.code:     patchShebangs meson_post_install.py
    '';
  
    meta = {
      homepage = https://fontmanager.github.io/;
      description = "Simple font management for GTK+ desktop environments";
      longDescription = ''
  
negative.code: { stdenv, fetchFromGitHub, meson, ninja, gettext, python3,
    pkgconfig, libxml2, json-glib , sqlite, itstool, librsvg,
    vala, gtk3, gnome3, desktop-file-utils, wrapGAppsHook, gobject-introspection
  }:
  
  stdenv.mkDerivation rec {
  