nixos/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
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, ... }:
let
  unstable = import <unstable> {config = { allowUnfree = true; };};
in 
{
  # Enable OpenGL
  hardware.opengl = {
    enable = true;
    driSupport = true;
    driSupport32Bit = true;
  };
  hardware.ckb-next.enable = true;
  networking.firewall.enable = false;
  # Load nvidia driver for Xorg and Wayland
  services.xserver.videoDrivers = ["nvidia"]; # or "nvidiaLegacy470 etc.
  security.polkit.enable = true;
  environment.pathsToLink = [ "/libexec" ];
  hardware.nvidia = {

    # Modesetting is required.
    modesetting.enable = true;

    # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
    # Enable this if you have graphical corruption issues or application crashes after waking
    # up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead 
    # of just the bare essentials.
    powerManagement.enable = false;

    # Fine-grained power management. Turns off GPU when not in use.
    # Experimental and only works on modern Nvidia GPUs (Turing or newer).
    powerManagement.finegrained = false;

    # Use the NVidia open source kernel module (not to be confused with the
    # independent third-party "nouveau" open source driver).
    # Support is limited to the Turing and later architectures. Full list of 
    # supported GPUs is at: 
    # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus 
    # Only available from driver 515.43.04+
    # Currently alpha-quality/buggy, so false is currently the recommended setting.
    open = false;

    # Enable the Nvidia settings menu,
	# accessible via `nvidia-settings`.
    nvidiaSettings = true;

    # Optionally, you may need to select the appropriate driver version for your specific GPU.
    package = config.boot.kernelPackages.nvidiaPackages.stable;
  };
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
    ];

  # Bootloader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  networking.hostName = "nixos"; # Define your hostname.
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.

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

  # Enable networking
  networking.networkmanager.enable = true;

  # Set your time zone.
  time.timeZone = "Europe/Oslo";

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

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


  # Configure keymap in X11
  services.xserver = {
    layout = "us";
    xkbVariant = "";
  };

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

  # Enable sound with pipewire.
  sound.enable = true;
  hardware.pulseaudio.enable = false;
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
    # If you want to use JACK applications, uncomment this
    #jack.enable = true;

    # use the example session manager (no others are packaged yet so this is enabled by default,
    # no need to redefine it in your config for now)
    #media-session.enable = true;
  };

  programs.zsh.enable = true;
  # Enable touchpad support (enabled default in most desktopManager).
  # services.xserver.libinput.enable = true;
  users.defaultUserShell = pkgs.zsh;
  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.mbeno = {
    shell = pkgs.zsh;
    isNormalUser = true;
    description = "Martin";
    extraGroups = [ "networkmanager" "wheel" "docker" ];
    packages = with pkgs; [
      firefox
      alacritty
      mumble
      zoom
      mattermost-desktop
    #  thunderbird
    ];
  };
programs.steam = {
  enable = true;
  remotePlay.openFirewall = true; # Open ports in the firewall for Steam Remote Play
  dedicatedServer.openFirewall = true; # Open ports in the firewall for Source Dedicated Server
};

security.sudo.extraRules= [
  {  users = [ "mbeno" ];
    commands = [
       { command = "ALL" ;
         options= [ "NOPASSWD" ]; # "SETENV" # Adding the following could be a good idea
      }
    ];
  }
];
  # Allow unfree packages
  nixpkgs.config.allowUnfree = true;
  services.xserver = {

    desktopManager = {
      xterm.enable = false;
    };
   
    displayManager = {
        defaultSession = "none+i3";
	autoLogin.enable = true;
	autoLogin.user = "mbeno";
    };

    windowManager.i3 = {
      enable = true;
      extraPackages = with pkgs; [
        dmenu #application launcher most people use
        i3status # gives you the default i3 status bar
        i3lock #default i3 screen locker
        i3blocks #if you are planning on using i3blocks over i3status
	polybar
        rofi
        picom
        nitrogen
     ];
    };
  };
systemd = {
  user.services.polkit-gnome-authentication-agent-1 = {
    description = "polkit-gnome-authentication-agent-1";
    wantedBy = [ "graphical-session.target" ];
    wants = [ "graphical-session.target" ];
    after = [ "graphical-session.target" ];
    serviceConfig = {
        Type = "simple";
        ExecStart = "${pkgs.polkit_gnome}/libexec/polkit-gnome-authentication-agent-1";
        Restart = "on-failure";
        RestartSec = 1;
        TimeoutStopSec = 10;
      };
  };
};
  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
    steam-run
    xdg-utils
  xdg-desktop-portal
  xdg-desktop-portal-gtk
  unstable.zoom-us
  neovim
  git
  #  vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
  #  wget
  ];
  
  virtualisation.docker.enable = true;
  # 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;

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

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "23.11"; # Did you read the comment?

}