{ pkgs }:

let fetch-gitignore = module: sha256:
      let url =  "https://www.toptal.com/developers/gitignore/api/" + module;
      in pkgs.fetchurl { inherit url sha256; };
in {
  emacs = fetch-gitignore "emacs" "1lswj6cna6y67i9siyr3rsa6z4ky42s9pv8zrji33swdlb8xmzxf";
  linux = fetch-gitignore "linux" "16f8gr0glc1ai6flm310kv5sfhil6sjh4qr4k1914da1bhhib390";
  fetcher = fetch-gitignore;
}