Fix QT_STYLE_OVERRIDE conflict between illogical-flake and GNOME config

[Copilot]

NixOS build fails due to conflicting home.sessionVariables.QT_STYLE_OVERRIDE definitions:

• illogical-flake module sets ""
• home/san.nix sets "gnome"

Changes

• Use lib.mkForce to override illogical-flake's default with user's GNOME Qt styling preference

home.sessionVariables = {
  GTK_THEME = "gruvbox-dark";
  QT_STYLE_OVERRIDE = lib.mkForce "gnome";
};

Note

illogical-impulse is designed for Hyprland; using it with GNOME desktop (desktop = "gnome") will have some env var conflicts. This fix maintains GNOME Qt styling while retaining the shell tools (fish, kitty, starship) from illogical-impulse.

Original prompt

[root@BlitzWing:/etc/nixos]# sudo nixos-rebuild test
warning: updating lock file "/etc/nixos/flake.lock":
• Added input 'illogical-flake':
'github:soymou/illogical-flake/375745b4c686126b3bb31838cdf8583b60f8da60?narHash=sha256-UMLAUVfuFnHQDOUurYuqz/EOySL1EkXbLgInospzCx4%3D' (2025-11-03)
• Added input 'illogical-flake/dotfiles':
'git+https://github.com/end-4/dots-hyprland?ref=refs/heads/main&rev=d835d8bc302159bfa9b386413ffc56a857d16755&submodules=1' (2025-10-29)
• Added input 'illogical-flake/nixpkgs':
follows 'nixpkgs'
• Added input 'illogical-flake/nur':
'github:nix-community/NUR/45040fd78c3317a6360b9fb3bbecd11304b6465b?narHash=sha256-KFwAewjWvHYhd23XQXoMtwCa06EEMpAs8Mn8khe60S4%3D' (2025-10-29)
• Added input 'illogical-flake/nur/flake-parts':
'github:hercules-ci/flake-parts/205b12d8b7cd4802fbcb8e8ef6a0f1408781a4f9?narHash=sha256-4pDvzqnegAfRkPwO3wmwBhVi/Sye1mzps0zHWYnP88c%3D' (2024-12-04)
• Added input 'illogical-flake/nur/flake-parts/nixpkgs-lib':
follows 'illogical-flake/nur/nixpkgs'
• Added input 'illogical-flake/nur/nixpkgs':
follows 'illogical-flake/nixpkgs'
• Added input 'illogical-flake/quickshell':
'git+https://git.outfoxxed.me/outfoxxed/quickshell?ref=refs/heads/master&rev=1b147a2c78983877909f9e531fc8ce17c35a297a' (2025-10-28)
• Added input 'illogical-flake/quickshell/nixpkgs':
follows 'illogical-flake/nixpkgs'
building the system configuration...
evaluation warning: 'system' has been renamed to/replaced by 'stdenv.hostPlatform.system'
error:
… while calling the 'head' builtin
at «github:nixos/nixpkgs/b3d51a0365f6695e7dd5cdf3e180604530ed33b4?narHash=sha256-4vhDuZ7OZaZmKKrnDpxLZZpGIJvAeMtK6FKLJYUtAdw%3D»/lib/attrsets.nix:1696:13:
1695| if length values == 1 || pred here (elemAt values 1) (head values) then
1696| head values
| ^
1697| else

   … while evaluating the attribute 'value'
     at «github:nixos/nixpkgs/b3d51a0365f6695e7dd5cdf3e180604530ed33b4?narHash=sha256-4vhDuZ7OZaZmKKrnDpxLZZpGIJvAeMtK6FKLJYUtAdw%3D»/lib/modules.nix:1118:7:
     1117|     // {
     1118|       value = addErrorContext "while evaluating the option `${showOption loc}':" value;
         |       ^
     1119|       inherit (res.defsFinal') highestPrio;

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

   … while evaluating definitions from `/nix/store/1wnxdqr2n1pj80lirh9pzsymslx8zd9l-source/nixos/modules/system/activation/top-level.nix':

   … while evaluating the option `warnings':

   … while evaluating definitions from `/nix/store/1wnxdqr2n1pj80lirh9pzsymslx8zd9l-source/nixos/modules/system/boot/systemd.nix':

   … while evaluating the option `systemd.services.home-manager-san.serviceConfig':

   … while evaluating definitions from `/nix/store/q9az5f308q9ffvpli022pi8n5642z36n-source/nixos':

   … while evaluating the option `home-manager.users.san.home.file.".manpath".source':

   … while evaluating definitions from `/nix/store/q9az5f308q9ffvpli022pi8n5642z36n-source/modules/files.nix':

   … while evaluating the option `home-manager.users.san.home.file.".manpath".text':

   … while evaluating definitions from `/nix/store/q9az5f308q9ffvpli022pi8n5642z36n-source/modules/programs/man.nix':

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

   error: The option `home-manager.users.san.home.sessionVariables.QT_STYLE_OVERRIDE' has conflicting definition values:
   - In `/nix/store/q9az5f308q9ffvpli022pi8n5642z36n-source/nixos/common.nix': ""
   - In `/nix/store/pvslm3rzlkjhql97vfvqrr71h50xrabs-source/home/san.nix': "gnome"
   Use `lib.mkForce value` or `lib.mkDefault value` to change the priority on any of these definitions.

Command 'nix --extra-experimental-features 'nix-command flakes' build --print-out-paths '/etc/nixos#nixosConfigurations."BlitzWing".config.system.build.toplevel' --no-link' returned non-zero exit status 1.

[root@BlitzWing:/etc/nixos]#

fix the build issues that are present, also re check if there have been any missteps in implementing https://github.com/soymou/illogical-flake configs for my system

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