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fix: complete hybridGPU wiring + make state-derived options overridable

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Two related fixes that together close the "minimal wiring" gap behind
`nomarchy.system.features.hybridGPU`.

1. Complete the NVIDIA driver stack inside hardware.nix's hybridGPU
   mkIf block.

   Before: `hybridGPU = true` enabled supergfxd and... that was it.
   supergfxd manages mode switching by black/unblacklisting the nvidia
   kernel module, but without the rest of the NVIDIA stack actually
   loaded the dGPU has no driver to drive. Hyprland/Wayland silently
   stayed on the iGPU regardless of mode.

   After: hybridGPU=true also wires
     services.xserver.videoDrivers = ["nvidia"]   (loads the driver
                                                   under Wayland too)
     hardware.graphics.{enable,enable32Bit}
     hardware.nvidia.modesetting.enable           (required for
                                                   Wayland)
     hardware.nvidia.powerManagement.enable
     hardware.nvidia.package = config.boot.kernelPackages
                                      .nvidiaPackages.stable
     boot.kernelParams += "nvidia-drm.modeset=1"

   All wired with lib.mkDefault so a downstream system.nix can pin a
   beta driver, flip to the open kernel module, or set
   `hardware.nvidia.prime.{offload.enable, intelBusId, nvidiaBusId}`
   for render-offload. The bus IDs are per-machine (find via
   `lspci -D`) so they stay user-supplied; docs/OPTIONS.md has the
   full recipe.

2. Add lib.mkDefault to every state.json-derived assignment in
   core/system/state.nix and core/home/state.nix.

   Same priority bug on both sides: assignments like
   `features.hybridGPU = systemState.features.hybridGPU or false`
   landed at default priority. A downstream system.nix saying
   `nomarchy.system.features.hybridGPU = true` would then conflict
   with the state-derived value at the same priority, and Nix would
   refuse the merge with "conflicting definition values" — the
   user's override couldn't take effect.

   Verified by an explicit eval: extending the default nixosConfig
   with `nomarchy.system.features.hybridGPU = true` now resolves
   cleanly and the full driver stack engages.

   Side-effect: core/system/state.nix now reads from
   lib/state-schema.nix like the home side does, completing the
   schema-centralization started two batches ago.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Bernardo Magri
2026-05-18 18:12:09 +01:00
parent 9c672953bc
commit d264371b46
5 changed files with 99 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
core/home/state.nix
View File

@@ -14,36 +14,40 @@ let
togglesState = nomarchyLib.readHomeState config.home.homeDirectory;
in
{
# Every assignment uses lib.mkDefault so a downstream /etc/nixos/home.nix
# can override the state.json-derived value. Without mkDefault, every
# option here would resolve at default priority and conflict on
# assignment from the user's config.
config = {
nomarchy = {
toggles = {
suspend = togglesState.suspend or schema.home.suspend;
screensaver = togglesState.screensaver or schema.home.screensaver;
idle = togglesState.idle or schema.home.idle;
nightlight = togglesState.nightlight or schema.home.nightlight;
waybar = togglesState.waybar or schema.home.waybar;
skipVsCodeTheme = togglesState.skipVsCodeTheme or schema.home.skipVsCodeTheme;
suspend = lib.mkDefault (togglesState.suspend or schema.home.suspend);
screensaver = lib.mkDefault (togglesState.screensaver or schema.home.screensaver);
idle = lib.mkDefault (togglesState.idle or schema.home.idle);
nightlight = lib.mkDefault (togglesState.nightlight or schema.home.nightlight);
waybar = lib.mkDefault (togglesState.waybar or schema.home.waybar);
skipVsCodeTheme = lib.mkDefault (togglesState.skipVsCodeTheme or schema.home.skipVsCodeTheme);
};
nightlightTemperature = togglesState.nightlightTemperature or schema.home.nightlightTemperature;
theme = togglesState.theme or schema.home.theme;
wallpaper = togglesState.wallpaper or schema.home.wallpaper;
panelPosition = togglesState.panelPosition or schema.home.panelPosition;
nightlightTemperature = lib.mkDefault (togglesState.nightlightTemperature or schema.home.nightlightTemperature);
theme = lib.mkDefault (togglesState.theme or schema.home.theme);
wallpaper = lib.mkDefault (togglesState.wallpaper or schema.home.wallpaper);
panelPosition = lib.mkDefault (togglesState.panelPosition or schema.home.panelPosition);
hyprland = {
gaps_in = togglesState.hyprland.gaps_in or schema.home.hyprland.gaps_in;
gaps_out = togglesState.hyprland.gaps_out or schema.home.hyprland.gaps_out;
border_size = togglesState.hyprland.border_size or schema.home.hyprland.border_size;
gaps_in = lib.mkDefault (togglesState.hyprland.gaps_in or schema.home.hyprland.gaps_in);
gaps_out = lib.mkDefault (togglesState.hyprland.gaps_out or schema.home.hyprland.gaps_out);
border_size = lib.mkDefault (togglesState.hyprland.border_size or schema.home.hyprland.border_size);
};
fonts.monospace = togglesState.font or schema.home.font;
fonts.monospace = lib.mkDefault (togglesState.font or schema.home.font);
# Derived properties from the theme directory
isLightMode = nomarchyLib.isThemeLightMode {
isLightMode = lib.mkDefault (nomarchyLib.isThemeLightMode {
themeName = togglesState.theme or schema.home.theme;
inherit assetsPath;
};
iconsTheme = nomarchyLib.getIconsTheme {
});
iconsTheme = lib.mkDefault (nomarchyLib.getIconsTheme {
themeName = togglesState.theme or schema.home.theme;
inherit assetsPath;
};
});
};
};
}