argunix: this attribute failed at evaluation time, before any build started.
attribute: packages.x86_64-linux.default

nix-eval-jobs error:
error: attribute 'packages' missing
       at /var/lib/argunix/work/115/flake.nix:29:21:
           28|         packages = {
           29|           default = inputs.packages.${system}.nix;
             |                     ^
           30|           nix = pkgs.callPackage ./images/nix.nix { };