anchor.diff:            license = lib.licenses.free;
           };
         }) {};
  +    zenburn-theme = callPackage ({ elpaBuild, fetchurl, lib }:
  +      elpaBuild {
  +        pname = "zenburn-theme";
  +        ename = "zenburn-theme";
  +        version = "2.7.0";
  +        src = fetchurl {
  +          url = "https://elpa.nongnu.org/nongnu/zenburn-theme-2.7.0.tar";
  +          sha256 = "1x7gd5w0g47kcam88lm605b35y35iq3q5f991a84l050c8syrkpy";
  +        };
  +        packageRequires = [];
  +        meta = {
  +          homepage = "https://elpa.gnu.org/packages/zenburn-theme.html";
  +          license = lib.licenses.free;
  +        };
  +      }) {};
       zig-mode = callPackage ({ elpaBuild, emacs, fetchurl, lib }:
         elpaBuild {
           pname = "zig-mode";
  
positive.code:           license = lib.licenses.free;
          };
        }) {};
      crux = callPackage ({ elpaBuild, fetchurl, lib, seq }:
        elpaBuild {
          pname = "crux";
  
negative.code:           license = lib.licenses.free;
          };
        }) {};
      apropospriate-theme = callPackage ({ elpaBuild, fetchurl, lib }:
        elpaBuild {
          pname = "apropospriate-theme";
          ename = "apropospriate-theme";
          version = "0.1.1";
          src = fetchurl {
            url = "https://elpa.nongnu.org/nongnu/apropospriate-theme-0.1.1.tar";
            sha256 = "11m80gijxvg4jf9davjja3bvykv161ggsrg7q0bihr0gq0flxgd7";
          };
          packageRequires = [];
          meta = {
            homepage = "https://elpa.gnu.org/packages/apropospriate-theme.html";
            license = lib.licenses.free;
          };
        }) {};
      arduino-mode = callPackage ({ elpaBuild, emacs, fetchurl, lib, spinner }:
        elpaBuild {
          pname = "arduino-mode";
  