anchor.diff:        elpaBuild {
           pname = "helm";
           ename = "helm";
  -        version = "3.8.9";
  -        src = fetchurl {
  -          url = "https://elpa.nongnu.org/nongnu/helm-3.8.9.tar";
  -          sha256 = "0hikp6g5g7cy290qxd768vxy91gxj92cwrrzp8kicxy3qck1q39v";
  +        version = "3.9.0";
  +        src = fetchurl {
  +          url = "https://elpa.nongnu.org/nongnu/helm-3.9.0.tar";
  +          sha256 = "00lln7g27iipa9lhd9hw3gl6s92d2di4nlfyjz0hgg32v39fnvjd";
           };
           packageRequires = [ helm-core popup ];
           meta = {
  
positive.code:       elpaBuild {
          pname = "helm-core";
          ename = "helm-core";
          version = "3.8.9";
          src = fetchurl {
            url = "https://elpa.nongnu.org/nongnu/helm-core-3.8.9.tar";
            sha256 = "03fzcc84gjslgsssbpjhdgnj7dn0pdfb5b2x79ss9vfvxamf2k94";
          };
          packageRequires = [ async emacs ];
          meta = {
  
negative.code:         packageRequires = [ cl-lib emacs ];
          meta = {
            homepage = "https://elpa.gnu.org/packages/prop-menu.html";
            license = lib.licenses.free;
          };
        }) {};
      racket-mode = callPackage ({ elpaBuild
                                 , emacs
                                 , fetchurl
                                 , lib }:
        elpaBuild {
          pname = "racket-mode";
          ename = "racket-mode";
          version = "1.0.20221118.122133";
          src = fetchurl {
            url = "https://elpa.nongnu.org/nongnu/racket-mode-1.0.20221118.122133.tar";
            sha256 = "0a2lpvkarcw5rlydm3va7ajjsyhfbj023h93n6n94pjvllhn2rp2";
          };
          packageRequires = [ emacs ];
          meta = {
            homepage = "https://elpa.gnu.org/packages/racket-mode.html";
            license = lib.licenses.free;
          };
        }) {};
  