{
  config,
  lib,
  pkgs,
  namespace,
  ...
}:
let
  inherit (lib.${namespace}) mkOpt;
  cfg = config.${namespace}.hardware.raspberry-pi.overlays;

  firmware = "${pkgs.${namespace}.raspberrypifw}/share/raspberrypi/boot/overlays";
  configfsPath = "/sys/kernel/config/device-tree/overlays";
in
{
  options.${namespace}.hardware.raspberry-pi.overlays = with lib; {
    pi5DisableWifi = {
      enable = lib.mkEnableOption "Disable wifi on Pi5";
      overlay = mkOpt types.str "${firmware}/disable-wifi-pi5.dtbo" "Location of the dtbo file";
    };

    pi5DisableBluetooth = {
      enable = lib.mkEnableOption "Disable bluetooth on Pi5";
      overlay = mkOpt types.str "${firmware}/disable-bt-pi5.dtbo" "Location of the dtbo file";
    };

    pi5i2c0 = {
      enable = lib.mkEnableOption "Enable pi5i2c0 on Pi5";
      overlay = mkOpt types.str "${firmware}/i2c0-pi5.dtbo" "Location of the dtbo file";
    };

    pi5i2c1 = {
      enable = lib.mkEnableOption "Enable pi5i2c1 on Pi5";
      overlay = mkOpt types.str "${firmware}/i2c1-pi5.dtbo" "Location of the dtbo file";
    };

    pi5i2c2 = {
      enable = lib.mkEnableOption "Enable pi5i2c2 on Pi5";
      overlay = mkOpt types.str "${firmware}/i2c2-pi5.dtbo" "Location of the dtbo file";
    };

    pi5i2c3 = {
      enable = lib.mkEnableOption "Enable pi5i2c3 on Pi5";
      overlay = mkOpt types.str "${firmware}/i2c3-pi5.dtbo" "Location of the dtbo file";
    };

    pi5Sdio = {
      enable = lib.mkEnableOption "Enable sdio-pi5.dtbo on Pi5";
      overlay = mkOpt types.str "${firmware}/sdio-pi5.dtbo" "Location of the dtbo file";
    };

    pi5Spi21cs = {
      enable = lib.mkEnableOption "Enable spi2-1cs-pi5.dtbo on Pi5";
      overlay = mkOpt types.str "${firmware}/spi2-1cs-pi5.dtbo" "Location of the dtbo file";
    };

    pi5Spi22cs = {
      enable = lib.mkEnableOption "Enable spi2-2cs-pi5.dtbo on Pi5";
      overlay = mkOpt types.str "${firmware}/spi2-2cs-pi5.dtbo" "Location of the dtbo file";
    };

    pi5Spi31cs = {
      enable = lib.mkEnableOption "Enable spi3-1cs-pi5.dtbo on Pi5";
      overlay = mkOpt types.str "${firmware}/spi3-1cs-pi5.dtbo" "Location of the dtbo file";
    };

    pi5Spi32cs = {
      enable = lib.mkEnableOption "Enable spi3-2cs-pi5.dtbo on Pi5";
      overlay = mkOpt types.str "${firmware}/spi3-2cs-pi5.dtbo" "Location of the dtbo file";
    };

    pi5Spi51cs = {
      enable = lib.mkEnableOption "Enable spi5-1cs-pi5.dtbo on Pi5";
      overlay = mkOpt types.str "${firmware}/spi5-1cs-pi5.dtbo" "Location of the dtbo file";
    };

    pi5Spi52cs = {
      enable = lib.mkEnableOption "Enable spi5-2cs-pi5.dtbo on Pi5";
      overlay = mkOpt types.str "${firmware}/spi5-1cs-pi5.dtbo" "Location of the dtbo file";
    };

    pi5Uart0 = {
      enable = lib.mkEnableOption "Enable pi5Uart0 on Pi5";
      overlay = mkOpt types.str "${firmware}/uart0-pi5.dtbo" "Location of the dtbo file";
    };

    pi5Uart1 = {
      enable = lib.mkEnableOption "Enable pi5Uart1 on Pi5";
      overlay = mkOpt types.str "${firmware}/uart1-pi5.dtbo" "Location of the dtbo file";
    };

    pi5Uart2 = {
      enable = lib.mkEnableOption "Enable pi5Uart2 on Pi5";
      overlay = mkOpt types.str "${firmware}/uart2-pi5.dtbo" "Location of the dtbo file";
    };

    pi5Uart3 = {
      enable = lib.mkEnableOption "Enable pi5Uart3 on Pi5";
      overlay = mkOpt types.str "${firmware}/uart3-pi5.dtbo" "Location of the dtbo file";
    };

    pi5Uart4 = {
      enable = lib.mkEnableOption "Enable pi5Uart4 on Pi5";
      overlay = mkOpt types.str "${firmware}/uart4-pi5.dtbo" "Location of the dtbo file";
    };

    pi5Vc4Kms = {
      enable = lib.mkEnableOption "Enable vc4-kms-v3d-pi5.dtbo on Pi5";
      overlay = mkOpt types.str "${firmware}/vc4-kms-v3d-pi5.dtbo" "Location of the dtbo file";
    };

    bcm2712d0 = {
      enable = lib.mkEnableOption "Enable bcm2712d0.dtbo on Pi5";
      overlay = mkOpt types.str "${firmware}/bcm2712d0.dtbo" "Location of the dtbo file";
    };
  };

  config = lib.mkIf config.${namespace}.hardware.raspberry-pi.enable {
    systemd.services = {
      apply-overlays = {
        description = "Apply Raspberry Pi Device Tree Overlays";
        script = ''
          echo "Applying Device Tree Overlays via ConfigFS"

          if [ ${if cfg.pi5DisableWifi.enable then "true" else "false"} ]; then
            mkdir -p ${toString configfsPath}/disable-wifi-pi5
            cp ${cfg.pi5DisableWifi.overlay} ${configfsPath}/disable-wifi-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/disable-wifi-pi5
          fi

          if [ ${if cfg.pi5DisableBluetooth.enable then "true" else "false"} ]; then
            mkdir -p ${toString configfsPath}/disable-bt-pi5
            cp ${cfg.pi5DisableBluetooth.overlay} ${configfsPath}/disable-bt-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/disable-bt-pi5
          fi

          if [ ${if cfg.pi5i2c0.enable then "true" else "false"} ]; then
            mkdir -p ${toString configfsPath}/i2c0-pi5
            cp ${cfg.pi5i2c0.overlay} ${configfsPath}/i2c0-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/i2c0-pi5
          fi

          if [ ${if cfg.pi5i2c1.enable then "true" else "false"} ]; then
            mkdir -p ${toString configfsPath}/i2c1-pi5
            cp ${cfg.pi5i2c1.overlay} ${configfsPath}/i2c1-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/i2c1-pi5
          fi

          if [ ${if cfg.pi5i2c2.enable then "true" else "false"} ]; then
            mkdir -p ${toString configfsPath}/i2c2-pi5
            cp ${cfg.pi5i2c2.overlay} ${configfsPath}/i2c2-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/i2c2-pi5
          fi

          if [ ${if cfg.pi5i2c3.enable then "true" else "false"} ]; then
            mkdir -p ${toString configfsPath}/i2c3-pi5
            cp ${cfg.pi5i2c3.overlay} ${configfsPath}/i2c3-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/i2c3-pi5
          fi

          if [ ${if cfg.pi5Sdio.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/sdio-pi5
            cp ${cfg.pi5Sdio.overlay} ${configfsPath}/sdio-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/sdio-pi5
          fi

          if [ ${if cfg.pi5Spi21cs.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/spi2-1cs-pi5
            cp ${cfg.pi5Spi21cs.overlay} ${configfsPath}/spi2-1cs-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/spi2-1cs-pi5
          fi

          if [ ${if cfg.pi5Spi22cs.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/spi2-2cs-pi5
            cp ${cfg.pi5Spi22cs.overlay} ${configfsPath}/spi2-2cs-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/spi2-2cs-pi5
          fi

          if [ ${if cfg.pi5Spi31cs.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/spi3-1cs-pi5
            cp ${cfg.pi5Spi31cs.overlay} ${configfsPath}/spi3-1cs-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/spi3-1cs-pi5
          fi

          if [ ${if cfg.pi5Spi32cs.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/spi3-2cs-pi5
            cp ${cfg.pi5Spi32cs.overlay} ${configfsPath}/spi3-2cs-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/spi3-2cs-pi5
          fi

          if [ ${if cfg.pi5Spi51cs.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/spi5-1cs-pi5
            cp ${cfg.pi5Spi51cs.overlay} ${configfsPath}/spi5-1cs-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/spi5-1cs-pi5
          fi

          if [ ${if cfg.pi5Spi52cs.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/spi5-2cs-pi5
            cp ${cfg.pi5Spi52cs.overlay} ${configfsPath}/spi5-2cs-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/spi5-2cs-pi5
          fi

          if [ ${if cfg.pi5Uart0.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/uart0-pi5
            cp ${cfg.pi5Uart0.overlay} ${configfsPath}/uart0-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/uart0-pi5
          fi

          if [ ${if cfg.pi5Uart1.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/uart1-pi5
            cp ${cfg.pi5Uart1.overlay} ${configfsPath}/uart1-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/uart1-pi5
          fi

          if [ ${if cfg.pi5Uart2.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/uart2-pi5
            cp ${cfg.pi5Uart2.overlay} ${configfsPath}/uart2-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/uart2-pi5
          fi

          if [ ${if cfg.pi5Uart3.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/uart3-pi5
            cp ${cfg.pi5Uart3.overlay} ${configfsPath}/uart3-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/uart3-pi5
          fi

          if [ ${if cfg.pi5Uart4.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/uart4-pi5
            cp ${cfg.pi5Uart4.overlay} ${configfsPath}/uart4-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/uart4-pi5
          fi

          if [ ${if cfg.pi5Vc4Kms.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/vc4-kms-v3d-pi5
            cp ${cfg.pi5Vc4Kms.overlay} ${configfsPath}/vc4-kms-v3d-pi5/dtbo
          else
            rm -rf ${toString configfsPath}/vc4-kms-v3d-pi5
          fi

          if [ ${if cfg.bcm2712d0.enable then "true" else "false"} ]; then
            mkdir ${toString configfsPath}/bcm2712d0
            cp ${cfg.bcm2712d0.overlay} ${configfsPath}/bcm2712d0/dtbo
          else
            rm -rf ${toString configfsPath}/bcm2712d0
          fi
        '';
        wantedBy = [ "multi-user.target" ];
      };
    };
  };
}