nixos/hyprland: programs.hyprland.enable = true no longer builds

[TRPB]

Nixpkgs version

• Stable (24.11)

Most likely cause: https://github.com/NixOS/nixpkgs/pull/400957/files

Describe the bug

My config hasn't changed but after a nix flake update on the 24.11 branch if I have programs.hyprland.enable = true in my config I get the following error

     … while calling the 'head' builtin
         at /nix/store/52hnnvpyni1n79ra4rqxdcswmd2w3823-source/lib/attrsets.nix:1534:13:
         1533|           if length values == 1 || pred here (elemAt values 1) (head values) then
         1534|             head values
             |             ^
         1535|           else

       … while evaluating the attribute 'value'
         at /nix/store/52hnnvpyni1n79ra4rqxdcswmd2w3823-source/lib/modules.nix:992:7:
          991|     // {
          992|       value = addErrorContext "while evaluating the option `${showOption loc}':" value;
             |       ^
          993|       inherit (res.defsFinal') highestPrio;

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

       … while evaluating definitions from `/nix/store/52hnnvpyni1n79ra4rqxdcswmd2w3823-source/nixos/modules/system/activation/top-level.nix':

       … while evaluating the option `assertions':

       … while evaluating definitions from `/nix/store/52hnnvpyni1n79ra4rqxdcswmd2w3823-source/nixos/modules/system/boot/systemd.nix':

       … while evaluating the option `systemd.services':

       … while evaluating definitions from `/nix/store/52hnnvpyni1n79ra4rqxdcswmd2w3823-source/nixos/modules/services/logging/logrotate.nix':

       … while evaluating the option `services.logrotate.enable':

       … while evaluating the option `users.groups':

       … while evaluating definitions from `/nix/store/52hnnvpyni1n79ra4rqxdcswmd2w3823-source/nixos/modules/config/resolvconf.nix':

       … while evaluating the option `networking.resolvconf.enable':

       … while evaluating the option `environment.etc':

       … while evaluating definitions from `/nix/store/52hnnvpyni1n79ra4rqxdcswmd2w3823-source/nixos/modules/config/xdg/portal.nix':

       … while evaluating the option `xdg.portal.enable':

       … while evaluating definitions from `/nix/store/52hnnvpyni1n79ra4rqxdcswmd2w3823-source/nixos/modules/config/xdg/portals/wlr.nix':

       … while evaluating the option `xdg.portal.wlr.enable':

       … while evaluating definitions from `/nix/store/52hnnvpyni1n79ra4rqxdcswmd2w3823-source/nixos/modules/programs/wayland/hyprland.nix':

It appears to be an issue with WLR portals.

I have tried with and without the following conifg:

  xdg.portal = {
    enable = true;
    extraPortals = [
      pkgs.xdg-desktop-portal-gtk
      pkgs.xdg-desktop-portal-hyprland
    ];
  };

Steps to reproduce

set programs.hyprland.enable = true

I removed all other hyprland based config

Expected behaviour

the system builds

Screenshots

No response

Relevant log output

Additional context

No response

System metadata

• system: "x86_64-linux"
• host os: Linux 6.6.76, NixOS, 24.11 (Vicuna), 24.11.20250212.0ff09db
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.24.12
• nixpkgs: /nix/store/9xr4v5kw14aqjg77nqfdspfm2fs2m786-source

Notify maintainers

@fufexan

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[TRPB]

Sorry, duplicate of #400287