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

let
  hostname = config.networking.hostName or "traveldroid";

  # Build GRUB theme from your assets
  grubTheme = pkgs.stdenv.mkDerivation {
    name = "droidnix-grub-theme";

    src = "${flakeRoot}/assets/traveldroid/theming/boot";

    installPhase = ''
      mkdir -p $out

      # GRUB expects this exact name
      cp theme.txt $out/theme.txt

      # Assets
      cp background.png $out/
    '';
  };
in
{
  #################################
  # Bootloader (UEFI + GRUB)
  #################################
  boot.loader = {
    efi = {
      canTouchEfiVariables = true;
      efiSysMountPoint = "/boot";
    };

    grub = {
      enable = true;
      efiSupport = true;
      efiInstallAsRemovable = true;
      #device = "nodev";
      useOSProber = true;
      # Keep multiple generations (fixes menu issue)
      configurationLimit = 25;
      # Fully declarative theme
      theme = grubTheme;
    };
    timeout = 5;
  };

  #################################
  # Kernel / initrd
  #################################
  boot.kernelPackages = pkgs.linuxPackages_latest;

  boot.kernelParams = [
    "quiet"
    "splash"
    "udev.log_level=3"
    "rd.systemd.show_status=false"
  ];

  boot.consoleLogLevel = 0;
  boot.initrd.systemd.enable = true;
  boot.initrd.availableKernelModules = [
    "xhci_pci"
    "nvme"
    "usb_storage"
    "sd_mod"
    "rtsx_usb_sdmmc"
  ];
  boot.kernelModules = [ "kvm-intel" ];

  #################################
  # Plymouth
  #################################
  boot.plymouth = {
    enable = true;
    theme = "rings";
    themePackages = [
      (pkgs.adi1090x-plymouth-themes.override {
        selected_themes = [ "rings" ];
      })
    ];
  };

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