{
  config,
  pkgs,
  lib,
  ...
}:
{
  imports = [

    ./disks.nix
    ./hardware-configuration.nix
    ./environments.nix
    # ./system.nix use docker here
  ];

  networking.hostName = "mibook";
  boot.loader.grub = {
    enable = true;
    device = "/dev/nvme0n1";
    useOSProber = true;
  };

  # Configure keymap in X11
  services.xserver.xkb = {
    layout = "de";
    variant = "";
  };

  # Configure console keymap
  console.keyMap = "de";

  # Enable CUPS to print documents.
  services.printing.enable = true;
  nixpkgs.config.allowUnfree = true;

  hardware.nvidia.prime = {
    sync.enable = false;

    nvidiaBusId = "PCI:01:00:0";
    intelBusId = "PCI:00:2:0";
  };

  services.openssh.enable = true;

  # Don't let boot stall waiting for a network that may never come up
  # (WiFi credentials live in KWallet and need a desktop session), which
  # otherwise hangs the terminal boot before the login prompt appears.
  systemd.services.NetworkManager-wait-online.enable = false;

  # Boot-time choice: the default GRUB entry boots straight into KDE.
  # A separate "terminal" entry (a NixOS specialisation) boots to a text
  # console with autologin, where you can work or run `desktop` to bring
  # KDE up. Pick the entry you want in the GRUB menu at boot.
  #
  # NOTE: in terminal mode WiFi will not connect on its own (the password
  # is stored per-user in KWallet). To reach the machine over SSH from
  # terminal mode, first save the WiFi as a system connection in KDE:
  # network settings -> your WiFi -> "All users may connect to this network".
  specialisation.terminal.configuration = {
    system.nixos.tags = [ "terminal" ];

    # Boot to a text console. graphical.target is what pulls in the display
    # manager (via its embedded Wants=display-manager.service), so defaulting
    # to multi-user.target leaves SDDM installed but not started at boot.
    systemd.defaultUnit = lib.mkForce "multi-user.target";

    # Guarantee a usable shell on the console (no login prompt to hunt for).
    services.getty.autologinUser = "finn";

    # Bring the desktop up on demand from the terminal.
    environment.systemPackages = [
      (pkgs.writeShellScriptBin "desktop" "exec sudo systemctl start display-manager.service")
    ];
  };

  # KDE (PowerDevil) power settings: do nothing on lid close while on AC power.
  # Shipped as a system-wide default; KConfig cascades so a user's own
  # ~/.config/powerdevilrc will override this if present.
  environment.etc."xdg/powerdevilrc".text = ''
    [AC][SuspendAndShutdown]
    LidAction=0
  '';

  system = {
    stateVersion = "23.05";
    autoUpgrade.enable = true;
  };
}