nixcfg/system/default.nix

{ config, pkgs, ... }:

{
  imports =
    [
      ./network
      ./sound
    ];

  # Set your time zone.
  time.timeZone = "America/New_York";

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

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

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

  system.autoUpgrade = {
    enable = true;
    allowReboot = false;
    flake = "github:alyraffauf/nixcfg";
    dates = "daily";
    operation = "switch";
  };

  # Delete generations older than 7 days.
  nix.gc = {
    automatic = true;
    dates = "daily";
    options = "--delete-older-than 7d";
  };

  # Automatically optimize the Nix store in the background.
  nix.settings.auto-optimise-store = true;

  # Run GC when there is less than 100MiB left.
  nix.extraOptions = ''
    min-free = ${toString (100 * 1024 * 1024)}
    max-free = ${toString (1024 * 1024 * 1024)}
  '';

  nix.settings.experimental-features = [ "nix-command" "flakes" ];
}