{ config, pkgs, ... }:

{
  # Bootloader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  # Setup keyfile.
  boot.initrd.secrets = {
    "/crypto_keyfile.bin" = null;
  };

  # Enables wireless support via wpa_supplicant.
  # networking.wireless.enable = true;

  # Enable networking.
  networking.networkmanager.enable = true;

  networking.nameservers = [
    # https://www.kuketz-blog.de/empfehlungsecke/#dns
    # dot.ffmuc.net (supports DNSSEC)
   "5.1.66.255" "185.150.99.255"
    # https://www.kuketz-blog.de/empfehlungsecke/#dns
    # unfiltered.adguard-dns.com (supports DNSSEC)
   "94.140.14.140" "94.140.14.141"
  ];

  # Set your time zone.
  time.timeZone = "Europe/Berlin";

  # Select internationalisation properties.
  i18n.defaultLocale = "en_US.UTF-8";

  i18n.extraLocaleSettings = {
    LC_ADDRESS = "de_DE.UTF-8";
    LC_IDENTIFICATION = "de_DE.UTF-8";
    LC_MEASUREMENT = "de_DE.UTF-8";
    LC_MONETARY = "de_DE.UTF-8";
    LC_NAME = "de_DE.UTF-8";
    LC_NUMERIC = "de_DE.UTF-8";
    LC_PAPER = "de_DE.UTF-8";
    LC_TELEPHONE = "de_DE.UTF-8";
    LC_TIME = "de_DE.UTF-8";
  };

  # Configure console keymap.
  console.keyMap = "de-latin1-nodeadkeys";

  # Allow unfree packages.
  nixpkgs.config.allowUnfree = true;

  # Define a user account. Don't forget to set a password with `passwd`.
  users.users.yoda = {
    isNormalUser = true;
    description = "Yoda";
    extraGroups = [ "networkmanager" "wheel" ];
    packages = with pkgs; [
      # Nix dependency management.
      niv
    ];
  };

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
  ];

  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  # programs.mtr.enable = true;

  nix.settings.auto-optimise-store = true;

  # Firewall
  #
  # Open ports in the firewall.
  #networking.firewall.allowedTCPPorts = [ ... ];
  #networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  #networking.firewall.enable = false;

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It's perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "23.05"; # Did you read the comment?
}