{ pkgs, ... }:

{
  imports = [ ./users ];

  security.sudo.wheelNeedsPassword = false;

  services.journald.extraConfig = ''
    SystemMaxUse=100M
    MaxFileSec=7day
  '';

  # Clean /tmp on boot.
  boot.cleanTmpDir = true;

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

  programs.fish.enable = true;

  # Optimize nix store by hardlinking identitical files.
  nix = {
    package = pkgs.nixUnstable;
    autoOptimiseStore = true;
    binaryCaches = [
      "https://cachix.cachix.org"
      "https://nix-community.cachix.org"
      "https://nixpkgs-review-bot.cachix.org"
    ];
    binaryCachePublicKeys = [
      "cachix.cachix.org-1:eWNHQldwUO7G2VkjpnjDbWwy4KQ/HNxht7H4SSoMckM="
      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
      "nixpkgs-review-bot.cachix.org-1:eppgiDjPk7Hkzzz7XlUesk3rcEHqNDozGOrcLc8IqwE="
    ];
    trustedUsers = [ "root" "jdejeu" ];
    extraOptions = ''
      experimental-features = nix-command flakes
    '';
  };

  nixpkgs.config.allowUnfree = true;
}