inputs: {
  config,
  lib,
  pkgs,
  ...
}: {
  imports = [./nixpkgs.nix];

  console.useXkbConfig = true;

  environment.systemPackages = with pkgs; [
    inputs.agenix.packages.${pkgs.system}.default
    inxi
  ];

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

  hardware.keyboard.qmk.enable = true;

  programs = {
    gnupg.agent = {
      enable = true;
      enableSSHSupport = true;
    };

    nh.enable = true;
  };

  nix = {
    gc = {
      automatic = true;
      dates = "daily";
      options = "--delete-older-than 3d";
      persistent = true;
      randomizedDelaySec = "60min";
    };

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

    optimise.automatic = true;

    settings = {
      auto-optimise-store = false;
      experimental-features = ["nix-command" "flakes"];
    };
  };

  security = {
    polkit.enable = true;
    rtkit.enable = true;
  };

  services = {
    avahi = {
      enable = true;
      nssmdns4 = true;
      openFirewall = true;
      publish = {
        enable = true;
        addresses = true;
        userServices = true;
        workstation = true;
      };
    };

    logind.extraConfig = ''
      # Don't shutdown when power button is short-pressed
      HandlePowerKey=suspend
      HandlePowerKeyLongPress=poweroff
    '';

    openssh = {
      enable = true;
      openFirewall = true;
      settings.PasswordAuthentication = false;
    };

    printing.enable = true;

    system-config-printer.enable = true;
  };

  sound.enable = true;

  system.autoUpgrade = {
    allowReboot = true;
    dates = "04:00";
    randomizedDelaySec = "20min";
    enable = true;
    flake = "github:alyraffauf/nixcfg";
    operation = "boot";
    rebootWindow = {
      lower = "02:00";
      upper = "05:00";
    };
  };

  time.timeZone = "America/New_York";

  zramSwap = {
    enable = lib.mkDefault true;
    memoryPercent = lib.mkDefault 50;
  };
}