anchor.diff:        elpaBuild {
           pname = "dash";
           ename = "dash";
  -        version = "2.18.1";
  -        src = fetchurl {
  -          url = "https://elpa.gnu.org/packages/dash-2.18.1.tar";
  -          sha256 = "17mrvmrfh5c3kri4r3gf1c3gz4i5vl9ac60grpx4103b56y4cgra";
  +        version = "2.19.0";
  +        src = fetchurl {
  +          url = "https://elpa.gnu.org/packages/dash-2.19.0.tar";
  +          sha256 = "0qszjs60xxqjiqf5f2bgmnbx5jiqii4ghcydwg500za0n2j0f5sx";
           };
           packageRequires = [ emacs ];
           meta = {
  
positive.code:       elpaBuild {
          pname = "corfu";
          ename = "corfu";
          version = "0.9";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/corfu-0.9.tar";
            sha256 = "0710bq07j6w6zm49ci1bbx580frdbc62b3hbxwzkwm5204nf78bf";
          };
          packageRequires = [ emacs ];
          meta = {
  
negative.code:           license = lib.licenses.free;
          };
        }) {};
      aggressive-indent = callPackage ({ elpaBuild, emacs, fetchurl, lib }:
        elpaBuild {
          pname = "aggressive-indent";
          ename = "aggressive-indent";
          version = "1.10.0";
          src = fetchurl {
            url = "https://elpa.gnu.org/packages/aggressive-indent-1.10.0.tar";
            sha256 = "166jk1z0vw481lfi3gbg7f9vsgwfv8fiyxpkfphgvgcmf5phv4q1";
          };
          packageRequires = [ emacs ];
          meta = {
            homepage = "https://elpa.gnu.org/packages/aggressive-indent.html";
            license = lib.licenses.free;
  