anchor.diff:        elpaBuild {
           pname = "eev";
           ename = "eev";
  -        version = "20210822";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/eev-20210822.tar";
  -          sha256 = "1682hl8s15snz9vq2r0q7jfpf81gbhlyxp55l2alsmxll4qq72wh";
  +        version = "20210925";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/eev-20210925.tar";
  +          sha256 = "0kwmjspmvz9lfm6y0kls9v2l55ccni0gviv9jlzxiwynrc01rz4y";
           };
           packageRequires = [ emacs ];
           meta = {
  
positive.code:           license = lib.licenses.free;
          };
        }) {};
      shen-mode = callPackage ({ elpaBuild, fetchurl, lib }:
        elpaBuild {
          pname = "shen-mode";
  
negative.code:       elpaBuild {
          pname = "so-long";
          ename = "so-long";
          version = "1.1.2";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/so-long-1.1.2.tar";
            sha256 = "053msvy2pyispwg4zzpaczfkl6rvnwfklm4jdsbjhqm0kx4vlcs9";
          };
          packageRequires = [ emacs ];
          meta = {
  