with import <nixpkgs> {};

{
  packageOverrides = pkgs: with pkgs; {
    nix = nix.overrideAttrs (attrs: {
      src = fetchFromGitHub {
        owner = "yorickvP";
        repo = "nix";
        rev = "dd7a21d40f8f649f2274a03e5cbdeb248796d5c8";
        sha256 = "0wwmxxqbqkrf9wgg6vif6djxmzbr5sfy2hisf5qdksn2j4817sml";
      };
    });
  };
}