{ inputs, outputs, lib, pkgs, config, self, username, useremail, hostname, sysversion, ... }:
let
  inherit (inputs) home-manager hyprland;
in
{
  # You can import other NixOS modules here
  imports = [
    # If you want to use modules your own flake exports (from modules/nixos):
    # outputs.nixosModules.example

    # Or modules from other flakes (such as nixos-hardware):
    # inputs.hardware.nixosModules.common-cpu-amd
    # inputs.hardware.nixosModules.common-ssd

    # You can also split up your configuration and import pieces of it here:
    # ./users.nix

    # Import your generated (nixos-generate-config) hardware configuration
    ./hardware-configuration.nix
    "${self}/modules/nixos/core.nix"
    "${self}/modules/nixos/user-group.nix"
    "${self}/modules/nixos/tmpsys.nix"

    home-manager.nixosModules.home-manager
    {
      # home-manager.useGlobalPkgs = true;
      # home-manager.useUserPackages = true;
      home-manager.extraSpecialArgs = {
        inherit inputs outputs hostname username useremail hyprland sysversion;
      };
      home-manager.users."${username}" = import ../../home/desktop.nix;
    }
  ];

  boot.loader = {
    efi = {
      canTouchEfiVariables = true;
      efiSysMountPoint = "/boot";
    };

    grub = {
      enable = true;
      efiSupport = true;
      device = "nodev";
    };
  };

  networking = {
    hostName = "${hostname}";

    wireless.enable = false; # Enables wireless support via wpa_supplicant.

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

    networkmanager.enable = true;

    enableIPv6 = false; # disable ipv6
    interfaces.enp0s3 = {
      useDHCP = false;
      ipv4.addresses = [
        {
          address = "10.7.45.130";
          prefixLength = 32;
        }
      ];
    };
    defaultGateway = "10.7.45.1";
    nameservers = [
      "119.29.29.29" # DNSPod
      "223.5.5.5" # AliDNS
    ];
  };

  users.users."${username}".packages = with pkgs; [
    vim
  ];


  # This setups a SSH server. Very important if you're setting up a headless system.
  # Feel free to remove if you don't need it.
  services.openssh = {
    enable = true;
    # Forbid root login through SSH.
    # Use keys only. Remove if you want to SSH using password (not recommended)
    settings = {
      # permitRootLogin = "no";
      # passwordAuthentication = false;
    };
  };


  # networking.firewall.allowedTCPPorts = [ ... ];
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  # networking.firewall.enable = lib.mkDefault false;

  nix = {
    # This will add each flake input as a registry
    # To make nix3 commands consistent with your flake
    registry = lib.mapAttrs (_: value: { flake = value; }) inputs;

    # This will additionally add your inputs to the system's legacy channels
    # Making legacy nix commands consistent as well, awesome!
    nixPath = lib.mapAttrsToList (key: value: "${key}=${value.to.path}") config.nix.registry;

    settings = {
      # Enable flakes and new 'nix' command
      experimental-features = "nix-command flakes";
      # Deduplicate and optimize nix store
      auto-optimise-store = true;
    };
  };
  nixpkgs = {
    # You can add overlays here
    overlays = [
      # Add overlays your own flake exports (from overlays and pkgs dir):
      outputs.overlays.additions
      outputs.overlays.modifications
      outputs.overlays.unstable-packages

      # You can also add overlays exported from other flakes:
      # neovim-nightly-overlay.overlays.default

      # Or define it inline, for example:
      # (final: prev: {
      #   hi = final.hello.overrideAttrs (oldAttrs: {
      #     patches = [ ./change-hello-to-hi.patch ];
      #   });
      # })
    ];
    # Configure your nixpkgs instance
    config = {
      # Disable if you don't want unfree packages
      allowUnfree = true;
    };
  };

  # https://nixos.wiki/wiki/FAQ/When_do_I_update_stateVersion
  system.stateVersion = sysversion;
}