{pkgs, lib, config, ...}:{
  imports = [
    ./nix.nix
    ./profiles/desktop
    ./profiles/docs.nix
    ./profiles/games.nix
    ./profiles/laptop.nix
    ./profiles/networking.nix
    ./profiles/perftools.nix
    ./profiles/zfs.nix
  ];
  
  console = {
    font = "Lat2-Terminus16";
  };  
  time.timeZone = "America/New_York";
  
  i18n = let
    locale = "en_US.UTF-8";
  in {
    defaultLocale = locale;
    extraLocaleSettings = {
      LC_ADDRESS = locale;
      LC_IDENTIFICATION = locale;
      LC_MEASUREMENT = locale;
      LC_MONETARY = locale;
      LC_NAME = locale;
      LC_NUMERIC = locale;
      LC_PAPER = locale;
      LC_TELEPHONE = locale;
      LC_TIME = locale;
    };
  };
  
  environment = {
    systemPackages = with pkgs; [
      git
      nano
      # for lspci etc
      pciutils
      # for lsusb etc
      usbutils
      lshw
      home-manager
      lm_sensors
      smartmontools
    ];
    pathsToLink = ["/share/zsh"];
  };
  programs = {
    mtr.enable = true;
    zsh.enable = true;
  };
  
  profiles = {
    networking.enable = lib.mkDefault true;
  };
  
  users.users.joshua = {
    subUidRanges = [ { startUid = 100000; count = 65536; } ];
    subGidRanges = [ { startGid = 100000; count = 65536; } ];
    isNormalUser = true;
    description = "Joshua Barrett";
    shell = pkgs.zsh;
    extraGroups = [
      "wheel"
      "docker"
      "podman"
      "wireshark"
      "kvm"
      "adbusers"
      "dialout"
    ];
    linger = true;
    openssh.authorizedKeys.keys = [
      # prospero
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHM0G+Ri6crg86mYVWWDHUiO+FX0GB0di9QkdNvE8SWF"
      # mercury
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIG3JS6Mf2PwfjZOAh3Cztmeu1CFzxond254jHAeLQ85O"
      # uruk
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIN4yxSed86xXJ3wuBwxX7HrAHrHSkFliBg7s4Nx53NFS"
    ];
  };

  # Enable the Docker daemon.
  virtualisation.docker = {
    enable = true;
    # Docker appears to select `devicemapper` by default, which is not cool.
    storageDriver = if config.profiles.zfs.enable then "zfs" else "overlay2";
    # Prune the docker registry weekly.
    autoPrune.enable = true;
    extraOptions = ''
      --experimental
    '';
  };

  virtualisation.oci-containers = {
    backend = "docker";
  };
 
  security.pam.sshAgentAuth.enable = lib.mkDefault true;
}