anchor.diff:        elpaBuild {
           pname = "vc-hgcmd";
           ename = "vc-hgcmd";
  -        version = "1.14";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/vc-hgcmd-1.14.tar";
  -          sha256 = "0pg6fg0znsmky3iwdpxn2sx5bbn72kw83s077000ilawi6zqwc2d";
  +        version = "1.14.1";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/vc-hgcmd-1.14.1.tar";
  +          sha256 = "12izw5ln22xdgwh6mqm6axzdfpcnqq7qcj72nmykrbsgpagp5fy6";
           };
           packageRequires = [ emacs ];
           meta = {
  
positive.code:       elpaBuild {
          pname = "eev";
          ename = "eev";
          version = "20211011";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/eev-20211011.tar";
            sha256 = "1a71qam6z5s3zl7fvxpsnabbqxh8a7llm1524nxs2353pb6ksfra";
          };
          packageRequires = [ emacs ];
          meta = {
  
negative.code:       elpaBuild {
          pname = "shell-command-plus";
          ename = "shell-command+";
          version = "2.3.2";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/shell-command+-2.3.2.tar";
            sha256 = "03hmk4gr9kjy3238n0ys9na00py035j9s0y8d87c45f5af6c6g2c";
          };
          packageRequires = [ emacs ];
          meta = {
            homepage = "https://elpa.gnu.org/packages/shell-command+.html";
            license = lib.licenses.free;
          };
        }) {};
      shell-command-plus = callPackage ({ elpaBuild, emacs, fetchurl, lib }:
        elpaBuild {
          pname = "shell-command-plus";
          ename = "shell-command+";
          version = "2.3.1";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/shell-command+-2.3.1.tar";
  