zmk_mf68/boards/shields/petejohanson_handwire/petejohanson_handwire.overlay

/ {
	chosen {
		zmk,kscan = &kscan0;
	};

	kscan0: kscan {
		compatible = "gpio-kscan";
		label = "KSCAN";

		diode-direction = "row2col";
		row-gpios = <&arduino_header 8 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
		            <&arduino_header 10 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
		col-gpios = <&arduino_header 13 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
		            <&arduino_header 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
	};
};