nixos-config/hosts/m3-ares/configuration.nix

# Edit this configuration file to define what should be installed on
# your system. Help is available in the configuration.nix(5) man page, on
# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
{
  config,
  pkgs,
  ...
}: {
  imports = [
    # Include the results of the hardware scan.
    ./hardware-configuration.nix
  ];

  specialisation = {
    "NVIDIA".configuration = {
      boot.kernelParams = ["nvidia.NVreg_PreserveVideoMemoryAllocations=1"];
      system.nixos.tags = ["NVIDIA"];
      services.xserver.videoDrivers = ["nvidia"];
      hardware.nvidia-container-toolkit.enable = true;
    };
  };

  # Bootloader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.systemd-boot.memtest86.enable = true;
  boot.initrd.services.lvm.enable = false;
  boot.extraModulePackages = with config.boot.kernelPackages; [v4l2loopback];
  boot.kernelModules = ["v4l2loopback"];

  boot.extraModprobeConfig = ''
    options kvm_intel nested=1
    options kvm_intel emulate_invalid_guest_state=0
    options kvm ignore_msrs=1
    options v4l2loopback exclusive_caps=1 max_buffers=2
  '';

  networking.hostName = "m3-ares"; # Define your hostname.
  # warp-terminal update fix
  networking.extraHosts = ''
    127.0.0.1 releases.warp.dev
    127.0.0.1 app.warp.dev
  '';
  # Pick only one of the below networking options.
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
  networking.networkmanager.enable =
    true; # Easiest to use and most distros use this by default.
  # Set your time zone.
  time.timeZone = "Europe/Berlin";

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

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

  # Enable the X11 windowing system.
  # services.xserver.enable = true;

  # Enable the GNOME Desktop Environment.
  # services.xserver.displayManager.gdm.enable = true;
  # services.xserver.desktopManager.gnome.enable = true;

  # Configure keymap in X11
  # services.xserver.xkb.layout = "us";
  # services.xserver.xkb.options = "eurosign:e,caps:escape";

  # Enable CUPS to print documents.
  # services.printing.enable = true;

  # Enable sound.
  # hardware.pulseaudio.enable = true;
  # OR

  # Enable touchpad support (enabled default in most desktopManager).
  # services.libinput.enable = true;

  # Define a user account. Don't forget to set a password with ‘passwd’.

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [neovim git];

  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  # programs.mtr.enable = true;
  # programs.gnupg.agent = {
  #   enable = true;
  #   enableSSHSupport = true;
  # };

  # List services that you want to enable:

  # Enable the OpenSSH daemon.
  services.openssh = {
    enable = true;
    settings.PermitRootLogin = "no";
    settings = {
      PasswordAuthentication = false;
    };
  };
  services.fstrim.enable = true;

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

  # 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.
  # system.copySystemConfiguration = true;

  # This option defines the first version of NixOS you have installed on this particular machine,
  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
  #
  # Most users should NEVER change this value after the initial install, for any reason,
  # even if you've upgraded your system to a new NixOS release.
  #
  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
  # to actually do that.
  #
  # This value being lower than the current NixOS release does NOT mean your system is
  # out of date, out of support, or vulnerable.
  #
  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
  # and migrated your data accordingly.
  #
  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
  system.stateVersion = "24.11"; # Did you read the comment?
}