{ config, lib, pkgs, ... }: {
  nixpkgs.localSystem.system = "aarch64-linux";
  imports = [

    # Sd image settings
    <nixpkgs/nixos/modules/installer/sd-card/sd-image.nix>

    # Your configuration
    ./configuration.nix
  ];

  boot = {
    kernelPackages = pkgs.linuxPackages_rpi4;
    loader.grub.enable = false;
    loader.generic-extlinux-compatible.enable = true;
    consoleLogLevel = lib.mkDefault 7;

    # The serial ports listed here are:
    # - ttyS0: for Tegra (Jetson TX1)
    # - ttyAMA0: for QEMU's -machine virt
    kernelParams =
      [ "console=ttyS0,115200n8" "console=ttyAMA0,115200n8" "console=tty0" ];

    initrd.availableKernelModules = [
      # Allows early (earlier) modesetting for the Raspberry Pi
      "vc4"
      "bcm2835_dma"
      "i2c_bcm2835"
      # Allows early (earlier) modesetting for Allwinner SoCs
      "sun4i_drm"
      "sun8i_drm_hdmi"
      "sun8i_mixer"
    ];

  };

  sdImage = {
    populateFirmwareCommands = let
      configTxt = pkgs.writeText "config.txt" ''
        [pi4]
        kernel=u-boot-rpi4.bin
        enable_gic=1
        armstub=armstub8-gic.bin
        # Otherwise the resolution will be weird in most cases, compared to
        # what the pi3 firmware does by default.
        disable_overscan=1
        [all]
        # Boot in 64-bit mode.
        arm_64bit=1
        # U-Boot needs this to work, regardless of whether UART is actually used or not.
        # Look in arch/arm/mach-bcm283x/Kconfig in the U-Boot tree to see if this is still
        # a requirement in the future.
        enable_uart=1
        # Prevent the firmware from smashing the framebuffer setup done by the mainline kernel
        # when attempting to show low-voltage or overtemperature warnings.
        avoid_warnings=1
      '';
    in ''
      (cd ${pkgs.raspberrypifw}/share/raspberrypi/boot && cp bootcode.bin fixup*.dat start*.elf $NIX_BUILD_TOP/firmware/)
      # Add the config
      cp ${configTxt} firmware/config.txt
      # Add pi4 specific files
      cp ${pkgs.ubootRaspberryPi4_64bit}/u-boot.bin firmware/u-boot-rpi4.bin
      cp ${pkgs.raspberrypi-armstubs}/armstub8-gic.bin firmware/armstub8-gic.bin
      cp ${pkgs.raspberrypifw}/share/raspberrypi/boot/bcm2711-rpi-4-b.dtb firmware/
    '';
    populateRootCommands = ''
      mkdir -p ./files/boot
      ${config.boot.loader.generic-extlinux-compatible.populateCmd} -c ${config.system.build.toplevel} -d ./files/boot
    '';
  };
}