{ config, pkgs,nixpkgs-unstable, lib, nixos-hardware, ... }:
let
  unstable-pkgs = nixpkgs-unstable.legacyPackages.x86_64-linux; #import nixpkgs-unstable.nixosModules.readOnlyPkgs {};
  # unstable-pkgs = hyprland.inputs.nixpkgs.legacyPackages.${pkgs.stdenv.hostPlatform.system};
in
{
  imports = [
    ./hardware-configuration.nix
  ];

  nix = {
    daemonCPUSchedPolicy = "idle";
    daemonIOSchedClass = "idle";
  };

  networking = {
    hostName = "eisen";
    nameservers = ["1.1.1.1"];
    networkmanager.enable = true;
  };

  time.timeZone = lib.mkForce "Europe/Prague";
  i18n.defaultLocale = "en_US.UTF-8";

  services.dnsmasq.enable = true;

  security = {
    rtkit.enable = true;
    polkit.enable = true;
  };

  services = {
    localtimed.enable = true;
    openssh.enable = true;
    tailscale = {
      enable = true;
      useRoutingFeatures = "both";
      openFirewall = true;
      extraUpFlags = [ "--advertise-exit-node" ];
    };
    avahi.enable = true;
    lldpd.enable = true;
    syncthing = {
      enable = true;
      openDefaultPorts = true;
    };
  };
  systemd.services.syncthing.environment.STNODEFAULTFOLDER = "true";

  virtualisation.docker = {
    enable = true;
    enableOnBoot = true;
  };
  # hardware.nvidia-container-toolkit.enable = true;

  boot = {
    kernelPackages = pkgs.linuxPackages_latest;
    # Shortcuts for fixing things
    # alt+sysrq (prtsc) + key
    # h: Print help to the system log.
    # f: Trigger the kernel oom killer.
    # s: Sync data to disk before triggering the reset options below.
    # e: SIGTERM all processes except PID 0.
    # i: SIGKILL all processes except PID 0.
    # b: Reboot the system.
    kernel.sysctl."kernel.sysrq" = 1;

    # zfs.enabled = false;
    swraid.enable = false;

    initrd.systemd.enable = true;

    loader = {
      systemd-boot.enable = true;
      efi.canTouchEfiVariables = true;
      # timeout = 0;
      # grub.enable = true;
      # grub.device = "/dev/disk/by-id/ata-Apacer_AS350_512GB_2021012802000028";
      # grub.efiSupport = true;
    };
  };

  users.users.dan = {
    isNormalUser = true;
    extraGroups = [ "networkmanager" "wheel" "docker" "fuse" "video" "wireshark" "gamemode" "scanner" "lp" "kvm" "adbusers"];
    shell = pkgs.nushell;
    packages = with pkgs; [
      
    ];
  };
  nix.settings.trusted-users = [ "root" "@wheel" "dan" ];

  environment.systemPackages = with pkgs; [
    git
    nvtopPackages.full
    btop
    lshw
  ];

  nixpkgs.config.allowUnfree = true;
  # nixpkgs.config.cudaSupport = true;

  nix.settings = {
    substituters = [
      "https://cache.nixos.org"
      "https://nix-community.cachix.org"
    ];
    trusted-public-keys = [
      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
    ];
  };
  # 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 = "25.05"; # Did you read the comment?

  nix.settings.experimental-features = [ "nix-command" "flakes" ];

  # /etc/hosts :)
  networking.extraHosts = ''
  '';
}