{
  lib,
  pkgs,
  namespace,
  ...
}:
let
  plymouthTheme = pkgs.kdePackages.breeze-plymouth.override {
    logoName = "apple";
    logoFile = ./apple.png;
  };
in
{
  # Use the systemd-boot EFI boot loader.
  boot = {
    loader = {
      systemd-boot = {
        enable = lib.mkForce true;
        configurationLimit = 15;
        consoleMode = lib.mkDefault "max";
      };
      efi.canTouchEfiVariables = lib.mkForce false;
    };

    kernelParams = [
      "apple_dcp.show_notch=1"
      "appledrm.show_notch=1"
      "melt_my_mac=1" # enable fan control
    ];

    extraModprobeConfig = ''
      options hid_apple iso_layout=0
    '';
    m1n1CustomLogo = ./NixOS.png;

    initrd = {
      availableKernelModules = {
        bcachefs = false;
      };
      kernelModules = {
        bcachefs = lib.mkForce false;
      };
    };
    supportedFilesystems = {
      apfs = lib.mkForce true;
    };

    plymouth = {
      # theme = "nixos-bgrt-apple";
      themePackages = with pkgs.${namespace}; [
        plymouthTheme
        plymouth-bgrt-apple
      ];
    };
  };
  
  specialisation = 
  let
    kernel = pkgs.${namespace}.linuxPackages_cachyos-asahi-lto;
  in {
    "cachyos-asahi".configuration = {
      boot = {
        kernelPackages = lib.mkOverride 90 kernel;
      };
  };
}