{ config, lib, ... }:

{
  boot = {
    loader.systemd-boot.enable = true;
    loader.efi.canTouchEfiVariables = true;
    supportedFilesystems = [ "ntfs" ];

    # Gaming-optimierte Kernel Parameter
    kernel.sysctl = {
      # Shader Cache & Game Launchers
      "fs.inotify.max_user_watches" = 1048576;
      "vm.max_map_count" = 2147483642;

      # Netzwerk-Performance für Online-Spiele
      "net.core.rmem_max" = 134217728;
      "net.core.wmem_max" = 134217728;
      "net.ipv4.udp_mem" = "88560 118080 177120";
      "net.ipv4.tcp_tw_reuse" = 1;
      "net.ipv4.ip_local_port_range" = "1024 65535";
    };

    # Kernel-Parameter für bessere Responsiveness
    kernelParams = [
      "sched_migration_cost_ns=5000000"  # Weniger CPU-Migration
    ];
  };

  networking.networkmanager.enable = true;

  # Override these in configuration.nix if you need local defaults.
  time.timeZone = lib.mkDefault "Europe/Berlin";

  i18n.defaultLocale = lib.mkDefault "de_DE.UTF-8";
  console.keyMap = lib.mkDefault "de";

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

  nix.gc = {
    automatic = true;
    dates = "weekly";
    options = "--delete-older-than 7d";
  };

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

  hardware = {
    enableRedistributableFirmware = true;
    cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
    cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
  };

  services.fwupd.enable = true;

  # CPU im Performance-Mode für Gaming
  powerManagement.cpuFreqGovernor = lib.mkDefault "performance";

  # Erhöhe File Descriptors für Steam/Lutris
  security.pam.loginLimits = [
    {
      domain = "*";
      type = "soft";
      item = "nofile";
      value = "524288";
    }
    {
      domain = "*";
      type = "hard";
      item = "nofile";
      value = "524288";
    }
  ];
}