{
    inputs = {
        nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
        flake-utils.url = "github:numtide/flake-utils";
    };
    outputs = { self, nixpkgs, flake-utils }:
      flake-utils.lib.eachDefaultSystem (system:
        let pkgs = import nixpkgs { inherit system; };
            nativeBuildInputs = [ pkgs.rustc ];
            buildInputs = [];
        in {
          devShells.default = pkgs.mkShell {
            inherit nativeBuildInputs buildInputs;
          };
          packages.default = pkgs.stdenv.mkDerivation {
            inherit nativeBuildInputs buildInputs;
            name = "iterate";
            src = ./.;
            buildPhase = "rustc main.rs";
            installPhase = ''
                mkdir -p $out/bin
                cp ./main $out/bin/iterate
            '';
            };
        });
}