diff --git a/config/corneish_zen.dtsi b/config/corneish_zen.dtsi
new file mode 100644
index 000000000..881fadb07
--- /dev/null
+++ b/config/corneish_zen.dtsi
@@ -0,0 +1,120 @@
+/*
+*
+* Copyright (c) 2021 Darryl deHaan
+* SPDX-License-Identifier: MIT
+*
+*/
+
+/dts-v1/;
+#include <nordic/nrf52840_qiaa.dtsi>
+
+#include <dt-bindings/zmk/matrix_transform.h>
+
+/ {
+    model = "Corne-ish Zen";
+    compatible = "corneish_zen";
+
+    chosen {
+        zephyr,code-partition = &code_partition;
+        zephyr,sram = &sram0;
+        zephyr,flash = &flash0;
+        zmk,kscan = &kscan0;
+        zmk,display = &epd;
+        zephyr,console = &cdc_acm_uart;
+        zmk,matrix-transform = &default_transform;
+    };
+
+    default_transform: keymap_transform_0 {
+        compatible = "zmk,matrix-transform";
+        columns = <12>;
+        rows = <4>;
+
+            // | SW1  | SW2  | SW3  | SW4  | SW5  | SW6  |   | SW6  | SW5  | SW4  | SW3  | SW2  | SW1  |
+            // | SW7  | SW8  | SW9  | SW10 | SW11 | SW12 |   | SW12 | SW11 | SW10 | SW9  | SW8  | SW7  |
+            // | SW13 | SW14 | SW15 | SW16 | SW17 | SW18 |   | SW18 | SW17 | SW16 | SW15 | SW14 | SW13 |
+            //                      | SW19 | SW20 | SW21 |   | SW21 | SW20 | SW19 |
+                    map = <
+            RC(0,0) RC(0,1) RC(0,2) RC(0,3) RC(0,4) RC(0,5)  RC(0,6) RC(0,7) RC(0,8) RC(0,9) RC(0,10) RC(0,11)
+            RC(1,0) RC(1,1) RC(1,2) RC(1,3) RC(1,4) RC(1,5)  RC(1,6) RC(1,7) RC(1,8) RC(1,9) RC(1,10) RC(1,11)
+            RC(2,0) RC(2,1) RC(2,2) RC(2,3) RC(2,4) RC(2,5)  RC(2,6) RC(2,7) RC(2,8) RC(2,9) RC(2,10) RC(2,11)
+                                    RC(3,3) RC(3,4) RC(3,5)  RC(3,6) RC(3,7) RC(3,8)
+        >;
+    };
+
+    five_column_transform: keymap_transform_1 {
+        compatible = "zmk,matrix-transform";
+        columns = <10>;
+        rows = <4>;
+
+            // | SW2  | SW3  | SW4  | SW5  | SW6  |   | SW6  | SW5  | SW4  | SW3  | SW2  |
+            // | SW8  | SW9  | SW10 | SW11 | SW12 |   | SW12 | SW11 | SW10 | SW9  | SW8  |
+            // | SW14 | SW15 | SW16 | SW17 | SW18 |   | SW18 | SW17 | SW16 | SW15 | SW14 |
+            //               | SW19 | SW20 | SW21 |   | SW21 | SW20 | SW19 |
+        map = <
+            RC(0,1) RC(0,2) RC(0,3) RC(0,4) RC(0,5)  RC(0,6) RC(0,7) RC(0,8) RC(0,9) RC(0,10)
+            RC(1,1) RC(1,2) RC(1,3) RC(1,4) RC(1,5)  RC(1,6) RC(1,7) RC(1,8) RC(1,9) RC(1,10)
+            RC(2,1) RC(2,2) RC(2,3) RC(2,4) RC(2,5)  RC(2,6) RC(2,7) RC(2,8) RC(2,9) RC(2,10)
+                            RC(3,3) RC(3,4) RC(3,5)  RC(3,6) RC(3,7) RC(3,8)
+        >;
+    };
+
+};
+
+&adc {
+    status = "okay";
+};
+
+&gpiote {
+    status = "okay";
+};
+
+&gpio0 {
+    status = "okay";
+};
+
+&gpio1 {
+    status = "okay";
+};
+
+&usbd {
+    status = "okay";
+    cdc_acm_uart: cdc_acm_uart {
+        compatible = "zephyr,cdc-acm-uart";
+    };
+};
+
+&flash0 {
+    /*
+     * For more information, see:
+     * http://docs.zephyrproject.org/latest/devices/dts/flash_partitions.html
+     */
+    partitions {
+        compatible = "fixed-partitions";
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        sd_partition: partition@0 {
+            reg = <0x00000000 0x00026000>;
+        };
+        code_partition: partition@26000 {
+            reg = <0x00026000 0x000c6000>;
+        };
+
+        /*
+         * The flash starting at 0x000ec000 and ending at
+         * 0x000f3fff is reserved for use by the application.
+         */
+
+        /*
+         * Storage partition will be used by FCB/LittleFS/NVS
+         * if enabled.
+         */
+        storage_partition: partition@ec000 {
+            reg = <0x000ec000 0x00008000>;
+        };
+
+        boot_partition: partition@f4000 {
+            reg = <0x000f4000 0x0000c000>;
+        };
+    };
+};