nixos/hosts/sparky/default.nix

{
  inputs,
  config,
  lib,
  configVars,
  ...
}: 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;
  pieholeIp = configVars.networking.addresses.piehole.ip;
  gatewayIp = configVars.networking.addresses.gateway.ip;
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;
    nameservers = ["${pieholeIp}" "${gatewayIp}" "8.8.8.8"];
  };

  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;
  };
}