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

let
  grubThemeSrc = "${flakeRoot}/assets/system/theming/boot";
in
{
  ############################
  # Bootloader (GRUB)
  ############################
  boot.loader = {
    timeout = 5;

    grub = {
      enable = true;
      efiSupport = true;
      devices = [ "nodev" ];
      useOSProber = true;

      # Declarative theme
      theme = "/boot/grub/themes/catppuccin-mocha/theme.txt";
    };
  };

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

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

  boot.consoleLogLevel = 0;
  boot.supportedFilesystems = [ "ntfs" ];

  ############################
  # Plymouth splashscreen
  ############################
  boot.plymouth = {
    enable = true;
    theme = "rings";

    themePackages = [
      (pkgs.adi1090x-plymouth-themes.override {
        selected_themes = [ "rings" ];
      })
    ];
  };

  # Ensure plymouth starts early in initrd
  boot.initrd.systemd.enable = true;

  ############################
  # Copy GRUB theme files declaratively
  ############################
  environment.etc = {
    "grub/themes/catppuccin-mocha/theme.txt".source = "${grubThemeSrc}/theme.txt";
    "grub/themes/catppuccin-mocha/background.png".source = "${grubThemeSrc}/background.png";
  };

  ############################
  # Avoid warnings
  ############################
  system.stateVersion = "26.05";
}