{ config, lib, pkgs, ... }:

{
  imports = [
    ../modules/backup-server.nix
    ../modules/desktop.nix
    ../modules/ssh.nix
    ../lilac.nix
  ];

  networking = {
    hostName = "backup";
    networkmanager.enable = true;
    
    firewall = {
      enable = true;
      allowedUDPPorts = [ 51820 ];
      trustedInterfaces = [ "wg0" ];
    };

    wireguard.interfaces."wg0" = {
      ips = [ "10.0.0.4/32" ];
      generatePrivateKeyFile = true;
      privateKeyFile = "/var/lib/wireguard/wg0.key";
      peers = [{
        publicKey = "Tst6SiqoGLSoOAF9l5vT2vvR2RGJ/mFcoBL3BL5n90k=";
        allowedIPs = [ "10.0.0.0/24" ];
        endpoint = "216.128.177.13:51820";
        persistentKeepalive = 25;
      }];
    };
  };

  time.timeZone = "America/Winnipeg";

  systemd.sleep.settings.Sleep = {
    AllowSuspend = "no";
    AllowHibernation = "no";
    AllowHybridSleep = "no";
    AllowSuspendThenHibernate = "no";
  };

  nixpkgs.config.allowUnfree = true;
  nix.settings.experimental-features = [ "nix-command" "flakes" ];
  system.stateVersion = "26.05";

  boot.initrd.availableKernelModules = [ "xhci_pci" "ehci_pci" "ahci" "usb_storage" "sd_mod" "sdhci_pci" ];
  boot.initrd.kernelModules = [ ];
  boot.kernelModules = [ "kvm-intel" ];
  boot.extraModulePackages = [ ];
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;
  boot.kernelPackages = pkgs.linuxPackages_latest;

  fileSystems."/" = {
    device = "/dev/disk/by-uuid/61b493e0-8c91-b7d1-4e336da06ff0";
    fsType = "ext4";
  };
  fileSystems."/boot" = {
    device = "/dev/disk/by-uuid/E157-E223";
    fsType = "vfat";
    options = [ "fmask=0077" "dmask=0077" ];
  };
  swapDevices = [ ];

  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
}