{
  description = "A very basic flake";

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachSystem [ "x86_64-linux" "aarch64-darwin" ] (system:
      let pkgs = import nixpkgs { inherit system; }; in {
        devShell = pkgs.mkShell { packages = with pkgs; [ dhall nodePackages.zx ]; };
      }
    );
}