{
  description = "spond bot";

  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";

  outputs = { self, nixpkgs }: {
    devShells = builtins.mapAttrs (_: pkgs: {
      default = pkgs.mkShell {
        nativeBuildInputs = with pkgs; [
          cargo
          openssl.dev
          pkg-config
        ];
      };
    }) nixpkgs.legacyPackages;
  };
}