anchor.diff:        elpaBuild {
           pname = "bnf-mode";
           ename = "bnf-mode";
  -        version = "0.4.4";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/bnf-mode-0.4.4.tar";
  -          sha256 = "0acr3x96zknxs90dc9mpnrwiaa81883h36lx5q1lxfn78vjfw14x";
  +        version = "0.4.5";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/bnf-mode-0.4.5.tar";
  +          sha256 = "0bj5ffqi54cdrraj5bp4v2cpbxjzly1p467dx1hzrlwv2b1svy2y";
           };
           packageRequires = [ cl-lib emacs ];
           meta = {
  
positive.code:           license = lib.licenses.free;
          };
        }) {};
      modus-operandi-theme = callPackage ({ elpaBuild, emacs, fetchurl, lib }:
        elpaBuild {
          pname = "modus-operandi-theme";
          ename = "modus-operandi-theme";
          version = "0.12.0";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/modus-operandi-theme-0.12.0.el";
            sha256 = "1mllyysn701qfnglxs7n2f6mrzrz55v9hcwspvafc6fl2blr393y";
          };
          packageRequires = [ emacs ];
          meta = {
            homepage = "https://elpa.gnu.org/packages/modus-operandi-theme.html";
            license = lib.licenses.free;
          };
        }) {};
      modus-vivendi-theme = callPackage ({ elpaBuild, emacs, fetchurl, lib }:
        elpaBuild {
          pname = "modus-vivendi-theme";
          ename = "modus-vivendi-theme";
          version = "0.12.0";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/modus-vivendi-theme-0.12.0.el";
            sha256 = "01f6z5xjnmki1k9m83jwva42lxidb31pdpwm4wpxjzxqmb96picn";
          };
          packageRequires = [ emacs ];
          meta = {
            homepage = "https://elpa.gnu.org/packages/modus-vivendi-theme.html";
            license = lib.licenses.free;
  
negative.code:       elpaBuild {
          pname = "which-key";
          ename = "which-key";
          version = "3.5.1";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/which-key-3.5.1.tar";
            sha256 = "187cssvqpd0wj01rgd19pp1k6aj9m2n5fdqznkga6w1h6cb5cm2b";
          };
          packageRequires = [ emacs ];
          meta = {
  