{
  pkgs,
  hostname,
  timezone,
  touchpadSupport,
  ...
}: {
  environment.systemPackages = with pkgs; [
    gcc
    python3
    cargo
    rustc

    btop
    tldr
  ];
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  i18n.defaultLocale = "en_US.UTF-8";
  console = {
    font = "Lat2-Terminus16";
    useXkbConfig = true; # use xkb.options in tty.
  };

  networking.hostName = "${hostname}";
  networking.networkmanager.enable = true; # Easiest to use and most distros use this by default.

  time.timeZone = "${timezone}";

  services = {
    openssh.enable = true;
    libinput.enable = touchpadSupport;
  };

  programs.bash = {
    interactiveShellInit = ''
      if [[ $(${pkgs.procps}/bin/ps --no-header --pid=$PPID --format=comm) != "fish" && -z ''${BASH_EXECUTION_STRING} ]]
      then
        shopt -q login_shell && LOGIN_OPTION='--login' || LOGIN_OPTION=""
        exec ${pkgs.fish}/bin/fish $LOGIN_OPTION
      fi
    '';
  };

  programs = {
    fish.enable = true;
    zsh.enable = true;
  };

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

  # networking.proxy.default = "http://user:password@proxy:port/";
  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";

  # Copy the NixOS configuration file and link it from the resulting system
  # (/run/current-system/configuration.nix). This is useful in case you
  # accidentally delete configuration.nix.
  # ONLY WORKS non-flake
  # system.copySystemConfiguration = true;
}