nixpkgs/pkgs/tools/text/gist/gemset.nix

{
  "gist" = {
    version = "4.4.2";
    source = {
      type = "gem";
      sha256 = "0lr4rywpm549llk0ypdpb3sjdpqw9snzwzqc3dggg8qn5wj69k81";
    };
  };
}