anchor.diff: -{ stdenv, fetchFromGitHub, fetchpatch, vala, pkgconfig, meson, ninja, python3
  +{ stdenv, fetchFromGitHub, fetchpatch, vala_0_40, pkgconfig, meson, ninja, python3
   , granite, gtk3, desktop-file-utils, gnome3, gtksourceview, webkitgtk, gtkspell3
   , discount, gobjectIntrospection, wrapGAppsHook }:
   
   stdenv.mkDerivation rec {
     pname = "quilter";
  -  version = "1.6.3";
  +  version = "1.6.8";
   
     name = "${pname}-${version}";
   
  
positive.code:     owner = "lainsce";
      repo = pname;
      rev = version;
      sha256 = "1wa0i6dgg6fgb7q9z33v9qmn1a1dn3ik58v1f3a49dvd5xyf8q6q";
    };
  
    nativeBuildInputs = [
  
negative.code:     ninja
      pkgconfig
      python3
      vala_0_40 # should be `elementary.vala` when elementary attribute set is merged
      wrapGAppsHook
    ];
  
    buildInputs = [
      discount
      gnome3.defaultIconTheme # should be `elementary.defaultIconTheme`when elementary attribute set is merged
      gnome3.libgee
      granite
      gtk3
      gtksourceview
      gtkspell3
      webkitgtk
    ];
  
    postPatch = ''
  