anchor.diff:        }) {};
       seq = callPackage ({ elpaBuild, fetchurl, lib }: elpaBuild {
           pname = "seq";
  -        version = "2.19";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/seq-2.19.tar";
  -          sha256 = "11hb7is6a4h1lscjcfrzh576j0g3m5yjydn16s6x5bxp5gsr6zha";
  +        version = "2.20";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/seq-2.20.tar";
  +          sha256 = "0vrpx6nnyjb0gsypknzagimlhvcvi5y1rcdkpxyqr42415zr8d0n";
           };
           packageRequires = [];
           meta = {
  
positive.code:       }) {};
      adaptive-wrap = callPackage ({ elpaBuild, fetchurl, lib }: elpaBuild {
          pname = "adaptive-wrap";
          version = "0.5";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/adaptive-wrap-0.5.el";
            sha256 = "0frgmp8vrrml4iykm60j4d6cl9rbcivy9yh24q6kd10bcyx59ypy";
          };
          packageRequires = [];
          meta = {
  
negative.code:       }) {};
      exwm = callPackage ({ elpaBuild, fetchurl, lib, xelb }: elpaBuild {
          pname = "exwm";
          version = "0.14";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/exwm-0.14.tar";
            sha256 = "14hjjpbasm84p54fxy73fg7g1fdwqkvisdw8dwwgzkflmd647mkx";
          };
          packageRequires = [ xelb ];
          meta = {
  