nix-config/modules/desktop/xserver.org

X Server

• X Server
  • Declaring the Option
  • Enabling It

X Server

What’s left of services.xserver on my hosts now that GNOME runs on Wayland: picking extra video drivers to load, and my own keyboard layout. Here’s the skeleton of the nixos.xserver module.

{
  flake.modules.nixos.xserver = {
    config,
    lib,
    ...
  }:
    with lib; let
      cfg = config.mySystem.desktop.xserver;
    in {
      <<options>>
      <<config>>
    };
}

Declaring the Option

videoDrivers lets a host load extra X11 drivers, such as amdgpu on the machine with an AMD GPU.

options.mySystem.desktop.xserver.videoDrivers = mkOption {
  type = types.listOf types.str;
  default = [];
  example = ["amdgpu"];
  description = "Extra X11 video drivers to load";
};

Enabling It

I use the same Bépo AFNOR keyboard layout everywhere, so it’s baked in directly rather than exposed as an option.

config.services.xserver = {
  enable = true;
  videoDrivers = cfg.videoDrivers;
  xkb = {
    layout = "fr";
    variant = "bepo_afnor";
  };
};