argunix: this attribute failed at evaluation time, before any build started.
attribute: nixosConfigurations.jongepad

nix-eval-jobs error:
error:
       … while evaluating the attribute 'config.system.build.toplevel'
         at «github:nixos/nixpkgs/549bd84d6279f9852cae6225e372cc67fb91a4c1?narHash=sha256-hGdgeU2Nk87RAuZyYjyDjFL6LK7dAZN5RE9%2BhrDTkDU%3D»/lib/modules.nix:402:9:
          401|         options = checked options;
          402|         config = checked (removeAttrs config [ "_module" ]);
             |         ^
          403|         _module = checked (config._module);

       … while calling the 'seq' builtin
         at «github:nixos/nixpkgs/549bd84d6279f9852cae6225e372cc67fb91a4c1?narHash=sha256-hGdgeU2Nk87RAuZyYjyDjFL6LK7dAZN5RE9%2BhrDTkDU%3D»/lib/modules.nix:402:18:
          401|         options = checked options;
          402|         config = checked (removeAttrs config [ "_module" ]);
             |                  ^
          403|         _module = checked (config._module);

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: attribute 'nixcademy-gdm-logo' missing
       at /nix/store/lp8bfz34wj8n5wa20g1fsz200k5fs3vw-8598hhkhqq60brv2s6mz5kcvd11facw4-source/configs-nixos/jongepad/configuration.nix:15:5:
           14|     self.nixosModules.nix-unstable
           15|     self.nixosModules.nixcademy-gdm-logo
             |     ^
           16|     self.nixosModules.nixcademy-gnome-background