diff --git a/config/boards/shields/rae_dux_left/Kconfig.defconfig b/config/boards/shields/rae_dux_left/Kconfig.defconfig
new file mode 100644
index 0000000..0821218
--- /dev/null
+++ b/config/boards/shields/rae_dux_left/Kconfig.defconfig
@@ -0,0 +1,19 @@
+# Copyright (c) 2022 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+if SHIELD_RAE_DUX_LEFT
+
+config ZMK_KEYBOARD_NAME
+	default "rae-dux"
+
+config ZMK_SPLIT_BLE_ROLE_CENTRAL
+	default y
+
+endif
+
+if SHIELD_RAE_DUX_LEFT || SHIELD_RAE_DUX_RIGHT
+
+config ZMK_SPLIT
+	default y
+
+endif
diff --git a/config/boards/shields/rae_dux_left/Kconfig.shield b/config/boards/shields/rae_dux_left/Kconfig.shield
new file mode 100644
index 0000000..ddffae9
--- /dev/null
+++ b/config/boards/shields/rae_dux_left/Kconfig.shield
@@ -0,0 +1,6 @@
+# Copyright (c) 2022 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config SHIELD_RAE_DUX_LEFT
+	def_bool $(shields_list_contains,rae_dux_left)
+
diff --git a/config/boards/shields/rae_dux_left/README.md b/config/boards/shields/rae_dux_left/README.md
new file mode 100644
index 0000000..e47566a
--- /dev/null
+++ b/config/boards/shields/rae_dux_left/README.md
@@ -0,0 +1,6 @@
+# Rae-Dux
+
+Shield configuration for [rae-dux][1], a 36-key diodeless interpretation of the [A. Dux by Tapi][2].
+
+[1]: https://github.com/andrewjrae/rae-dux
+[2]: https://github.com/tapioki/cephalopoda/tree/main/Architeuthis%20dux
diff --git a/config/boards/shields/rae_dux_left/rae_dux.dtsi b/config/boards/shields/rae_dux_left/rae_dux.dtsi
new file mode 100644
index 0000000..f713b75
--- /dev/null
+++ b/config/boards/shields/rae_dux_left/rae_dux.dtsi
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2022 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <dt-bindings/zmk/matrix_transform.h>
+
+/ {
+
+	chosen {
+		zmk,kscan = &kscan0;
+		zmk,matrix_transform = &default_transform;
+	};
+
+	default_transform: keymap_transform_0 {
+		compatible = "zmk,matrix-transform";
+		columns = <36>;
+		rows = <1>;
+		map = <
+			RC(0,0)  RC(0,1)  RC(0,2)  RC(0,3)  RC(0,4)    RC(0,22) RC(0,21) RC(0,20) RC(0,19) RC(0,18)
+			RC(0,5)  RC(0,6)  RC(0,7)  RC(0,8)  RC(0,9)    RC(0,27) RC(0,26) RC(0,25) RC(0,24) RC(0,23)
+			RC(0,10) RC(0,11) RC(0,12) RC(0,13) RC(0,14)   RC(0,32) RC(0,31) RC(0,30) RC(0,29) RC(0,28)
+			                  RC(0,15) RC(0,16) RC(0,17)   RC(0,35) RC(0,34) RC(0,33)
+		>;
+	};
+
+	kscan0: kscan {
+		compatible = "zmk,kscan-gpio-direct";
+		label = "KSCAN";
+		input-gpios =
+			<&pro_micro  4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro  0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro 15 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro 10 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro 21 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro  5 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro  2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro 18 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro 16 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro 20 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro  6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro  3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro  1 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro 19 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro  7 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro  8 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>,
+			<&pro_micro  9 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+		;
+	};
+
+};
diff --git a/config/boards/shields/rae_dux_left/rae_dux_left.conf b/config/boards/shields/rae_dux_left/rae_dux_left.conf
new file mode 100644
index 0000000..4871321
--- /dev/null
+++ b/config/boards/shields/rae_dux_left/rae_dux_left.conf
@@ -0,0 +1,12 @@
+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+# Tune combos to allow proper ARDUX support
+CONFIG_ZMK_COMBO_MAX_COMBOS_PER_KEY=16
+CONFIG_ZMK_COMBO_MAX_KEYS_PER_COMBO=8
+CONFIG_ZMK_COMBO_MAX_PRESSED_COMBOS=8
+
+# Tune bluetooth profiles for quick select
+CONFIG_BT_MAX_CONN=6
+
+CONFIG_ZMK_SLEEP=y
diff --git a/config/boards/shields/rae_dux_left/rae_dux_left.keymap b/config/boards/shields/rae_dux_left/rae_dux_left.keymap
new file mode 100644
index 0000000..3e0ca7c
--- /dev/null
+++ b/config/boards/shields/rae_dux_left/rae_dux_left.keymap
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2020 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/keys.h>
+#include <dt-bindings/zmk/bt.h>
+
+// Enable ARDUX Left
+#define ARDUX_LEFT 1
+#define ARDUX_BIG 1
+
+// ARTS Row
+#define KEY_A 3
+#define KEY_R 2
+#define KEY_T 1
+#define KEY_S 0
+// EYIO Row
+#define KEY_E 13
+#define KEY_Y 12
+#define KEY_I 11
+#define KEY_O 10
+// Big ardux F1-12 layer keys for combo
+#define KEY_F_TOP 14
+#define KEY_F_BOTTOM 24
+
+// Define Offsets
+#define LEADING_NONES NONE(0,0,10)
+#define MIDDLE_NONES NONE(0,0,5)
+#define TRAILING_NONES NONE(0,0,8)
+#define BIG_LEADING_NONES NONE(0, 0, 0)
+#define BIG_BETWEEN_ROW_ONE_TWO_NONES NONE(0, 0, 5)
+#define BIG_BETWEEN_ROW_TWO_THREE_NONES NONE(0, 0, 5)
+#define BIG_BETWEEN_ROW_THREE_THUMBS NONE(0, 0, 5)
+#define BIG_TRAILING_NONES NONE(0, 0, 5)
+
+// Include main ardux.io keymap
+#include "../../../ardux.dtsi"
diff --git a/config/boards/shields/rae_dux_left/rae_dux_left.overlay b/config/boards/shields/rae_dux_left/rae_dux_left.overlay
new file mode 100644
index 0000000..59ee4af
--- /dev/null
+++ b/config/boards/shields/rae_dux_left/rae_dux_left.overlay
@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) 2022 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "rae_dux.dtsi"