argunix: this attribute failed at evaluation time, before any build started.
attribute: nixosConfigurations.jonge-x250

nix-eval-jobs error:
error:
       … while calling the 'head' builtin
         at «github:nixos/nixpkgs/549bd84d6279f9852cae6225e372cc67fb91a4c1?narHash=sha256-hGdgeU2Nk87RAuZyYjyDjFL6LK7dAZN5RE9%2BhrDTkDU%3D»/lib/attrsets.nix:1712:13:
         1711|           if length values == 1 || pred here (elemAt values 1) (head values) then
         1712|             head values
             |             ^
         1713|           else

       … while evaluating the attribute 'value'
         at «github:nixos/nixpkgs/549bd84d6279f9852cae6225e372cc67fb91a4c1?narHash=sha256-hGdgeU2Nk87RAuZyYjyDjFL6LK7dAZN5RE9%2BhrDTkDU%3D»/lib/modules.nix:1166:7:
         1165|     // {
         1166|       value = addErrorContext "while evaluating the option `${showOption loc}':" value;
             |       ^
         1167|       inherit (res.defsFinal') highestPrio;

       … while evaluating the option `system.build.toplevel':

       … while evaluating definitions from `/nix/store/h9wn92hv33sizprch7fcp16lfs1k3w5j-source/nixos/modules/system/activation/top-level.nix':

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

       error:
       Failed assertions:
       - The option definition `networking.wireless.environmentFile' in `/nix/store/lp8bfz34wj8n5wa20g1fsz200k5fs3vw-8598hhkhqq60brv2s6mz5kcvd11facw4-source/configs-nixos/jonge-x250/configuration.nix' no longer has any effect; please remove it.
       Secrets are now handled by the `networking.wireless.secretsFile` and
       `networking.wireless.networks.<name>.pskRaw` options.
       The change is motivated by a mechanism recently added by wpa_supplicant
       itself to separate secrets from configuration, making the previous
       method obsolete.

       The syntax of the `secretsFile` is the same as before, except the
       values are interpreted literally, unlike environment variables.
       To update, remove quotes or character escapes, if necessary, and
       apply the following changes to your configuration:
         {
           home.psk = "@psk_home@";          →  home.pskRaw = "ext:psk_home";
           other.pskRaw = "@psk_other@";     →  other.pskRaw = "ext:psk_other";
           work.auth = ''
             eap=PEAP
             identity="my-user@example.com"
             password=@pass_work@            →  password=ext:pass_work
           '';
         }


       - The ‘fileSystems’ option does not specify your root file system.