{ config, pkgs, inputs, ... }:

let
  unstable = import inputs.nixpkgs-unstable {
    system = pkgs.stdenv.hostPlatform.system;
    config.allowUnfree = true;
  };
in
{
  imports = [
    ./hardware.nix
    ../../system
  ];

  networking.hostName = "lilac";

  services.fwupd.enable = true;
  services.fprintd.enable = true;
  services.hardware.bolt.enable = true;

  system.stateVersion = "26.05";

  environment.systemPackages = with pkgs; [
    framework-tool

    # GPU compute diagnostics
    clinfo
    vulkan-tools
    intel-gpu-tools

    # Vulkan-accelerated llama.cpp CLI/server for manual/advanced use
    (llama-cpp.override { vulkanSupport = true; })
  ];

  networking.interfaces.bnep0.ipv4.addresses = [{
    address = "10.0.0.1";
    prefixLength = 24;
  }];

  networking.firewall.interfaces."bnep0".allowedUDPPorts = [ 4242 ];

  systemd = {
    services = {
      # 1. Start the listening server profile
      bt-pan-server = {
        description = "Bluetooth PAN GN Server";
        after = [ "bluetooth.service" ];
        wantedBy = [ "multi-user.target" ];
        serviceConfig = {
          ExecStart = "${pkgs.bluez-tools}/bin/bt-network -s gn pan0";
          Restart = "always";
          RestartSec = 5;
        };
      };
    };
  };

  hardware.graphics = {
    enable = true;
    enable32Bit = true;
    extraPackages = with pkgs; [
      intel-media-driver     # Hardware acceleration
      intel-vaapi-driver
      vpl-gpu-rt             # Video processing runtime
      intel-compute-runtime  # OpenCL + Level Zero GPU compute (Arc iGPU)
    ];
    extraPackages32 = with pkgs.pkgsi686Linux; [
      intel-media-driver
    ];
  };

  services.power-profiles-daemon.enable = true;
  services.thermald.enable = true;

  services.ollama = {
    enable = true;
    package = unstable.ollama-vulkan;
  };
}