{
  description = "A very basic flake";

  inputs = {
    nixpkgs.url = "flake:nixpkgs";
  };

  outputs =
    { self, nixpkgs }:
    let
      forAllSystems =
        function:
        nixpkgs.lib.genAttrs [
          "x86_64-linux"
          "aarch64-linux"
        ] (system: function nixpkgs.legacyPackages.${system});
    in
    {
      packages = forAllSystems (pkgs: {
        default = pkgs.callPackage ./package.nix { rev = self.shortRev or "dirty"; };
      });
      devShells = forAllSystems (pkgs: {
        default = pkgs.mkShell {
          packages = with pkgs; [ hurl ];
        };
      });
    };
}