anchor.diff:            license = lib.licenses.free;
           };
         }) {};
  -    evil-matchit = callPackage ({ elpaBuild, emacs, evil, fetchurl, lib }:
  +    evil-matchit = callPackage ({ elpaBuild, emacs, fetchurl, lib }:
         elpaBuild {
           pname = "evil-matchit";
           ename = "evil-matchit";
  -        version = "2.4.4";
  -        src = fetchurl {
  -          url = "https://elpa.nongnu.org/nongnu/evil-matchit-2.4.4.tar";
  -          sha256 = "1p8xsi0068wabsfn3jwhyinkk2684xp9hlapcbj6y58wkpzqj0f6";
  -        };
  -        packageRequires = [ emacs evil ];
  +        version = "3.0.0";
  +        src = fetchurl {
  +          url = "https://elpa.nongnu.org/nongnu/evil-matchit-3.0.0.tar";
  +          sha256 = "036zf7l8pkhbyk7gz91r00v4fqi2wfdnqv95xkh7jpm2i9xcgg5p";
  +        };
  +        packageRequires = [ emacs ];
           meta = {
             homepage = "https://elpa.gnu.org/packages/evil-matchit.html";
             license = lib.licenses.free;
  
positive.code:         packageRequires = [ emacs seq ];
          meta = {
            homepage = "https://elpa.gnu.org/packages/swift-mode.html";
            license = lib.licenses.free;
          };
        }) {};
  
negative.code:       elpaBuild {
          pname = "shellcop";
          ename = "shellcop";
          version = "0.1.0";
          src = fetchurl {
            url = "https://elpa.nongnu.org/nongnu/shellcop-0.1.0.tar";
            sha256 = "0z0aml86y1m11lz8a8wdjfad5dzynjsqw69qin0a4vv2b8gy8mhr";
          };
          packageRequires = [ emacs ];
          meta = {
  