nixos/hosts/sparky/default.nix

{ inputs, config, lib, pkgs, outputs, ... }:
let
  # Disko setup
  fsType = "btrfs"; # one of ext4 or btrfs. Use btrfs if using impermanence
  dev = "/dev/sda"; # depends on target hardware
  encrypted = false; # currrently only applies to btrfs
  btrfsMountDevice = if encrypted then "/dev/mapper/crypted" else "/dev/root_vg/root";
  impermanence = true;
in
{
  imports =
    [
      # Create users for this host
      ../common/users/media

      # Disk configuration
      inputs.disko.nixosModules.disko
      (import ../common/disks { device = dev; impermanence = impermanence; fsType = fsType; encrypted = encrypted; })

      # Impermanence
      (import ../common/disks/btrfs/impermanence.nix { btrfsMountDevice = btrfsMountDevice; lib = lib; })

      # Import core options
      ./hardware-configuration.nix
      ../common/core

      # Import optional options
      ../common/optional/openssh.nix
      ../common/optional/persistence.nix
      ../common/optional/nfs-mounts/media.nix
      ../common/optional/gaming.nix
      ../common/optional/printing.nix

    ];

  boot = {
    loader = {
      systemd-boot.enable = true;
      efi.canTouchEfiVariables = true;
      timeout = 3;
    };
  };
  boot.kernelParams = [ "i915.enable_psr=0" ];

  networking = {
    hostName = "sparky";
    networkmanager.enable = true;
    enableIPv6 = false;
  };

  nixpkgs.config.allowUnfreePredicate = pkg:
    builtins.elem (lib.getName pkg) [
      # Add additional package names here
      "nvidia-x11"
      "nvidia-settings"
      "nvidia-persistenced"
    ];

  services.displayManager.defaultSession = "cinnamon";
  services.libinput.enable = true;

  services.xserver = {
    enable = true;
    videoDrivers = [ "nvidia" ];
    displayManager.lightdm.enable = true;
    exportConfiguration = true;
    deviceSection = ''
    '';
    desktopManager = {
      cinnamon.enable = true;
    };
  };

  # Enable OpenGL
  hardware.opengl = {
    enable = true;
    driSupport = true;
    driSupport32Bit = true;
  };

  # Load nvidia driver
  hardware.nvidia = {
    # https://nixos.wiki/wiki/Nvidia
    modesetting.enable = true;
    powerManagement.enable = false;
    open = false;
    nvidiaSettings = true;
    package = config.boot.kernelPackages.nvidiaPackages.stable;
  };
}