anchor.diff:  
         Font Manager is NOT a professional-grade font management solution.
       '';
  -    license = licenses.gpl3;
  +    license = licenses.gpl3Plus;
       platforms = platforms.unix;
       maintainers = [ maintainers.romildo ];
     };
  
positive.code: { lib, stdenv, fetchFromGitHub, meson, ninja, gettext, python3,
    pkg-config, libxml2, json-glib , sqlite, itstool, librsvg, yelp-tools,
    vala, gtk3, gnome3, desktop-file-utils, wrapGAppsHook, gobject-introspection
  }:
  
  stdenv.mkDerivation rec {
    pname = "font-manager";
    version = "0.7.9";
  
    src = fetchFromGitHub {
      owner = "FontManager";
      repo = "master";
      rev = version;
      sha256 = "1nc0i824v2szz0j9a5rwl8gygih15xbxnxpnx9d3wr0yq9057q6q";
    };
  
    nativeBuildInputs = [
  
negative.code:     libxml2
      json-glib
      sqlite
      gtk3
      gnome3.adwaita-icon-theme
      libsoup
      webkitgtk
    ];
  
    postPatch = ''
  