add meowboard shield config

app/boards/shields/meowboard/Kconfig.defconfig

@@ -0,0 +1,16 @@
+if SHIELD_MEOWBOARD_LEFT
+
+config ZMK_KEYBOARD_NAME
+    default "Meowboard"
+
+config ZMK_SPLIT_ROLE_CENTRAL
+    default y
+    
+endif
+
+if SHIELD_MEOWBOARD_LEFT || SHIELD_MEOWBOARD_RIGHT
+
+config ZMK_SPLIT
+    default y
+
+endif

app/boards/shields/meowboard/Kconfig.shield

@@ -0,0 +1,5 @@
+config SHIELD_MEOWBOARD_LEFT
+    def_bool $(shields_list_contains,meowboard_left)
+
+config SHIELD_MEOWBOARD_RIGHT
+    def_bool $(shields_list_contains,meowboard_right)

app/boards/shields/meowboard/meowboard-left.overlay

@@ -0,0 +1,11 @@
+#include "meowboard.dtsi"
+
+&kscan0 {
+    col-gpios
+        = <&pro_micro 18 GPIO_ACTIVE_HIGH> // l pinky
+        , <&pro_micro 15 GPIO_ACTIVE_HIGH> // l ring
+        , <&pro_micro 14 GPIO_ACTIVE_HIGH> // l middle
+        , <&pro_micro 16 GPIO_ACTIVE_HIGH> // l index
+        , <&pro_micro 10 GPIO_ACTIVE_HIGH>  // l inner
+        ;
+};

app/boards/shields/meowboard/meowboard-right.overlay

@@ -0,0 +1,15 @@
+#include "meowboard.dtsi"
+
+&default_transform {
+    col-offset = <5>;
+};
+
+&kscan0 {
+    col-gpios
+        = <&pro_micro 10 GPIO_ACTIVE_HIGH> // r inner
+        , <&pro_micro 16 GPIO_ACTIVE_HIGH> // r index
+        , <&pro_micro 14 GPIO_ACTIVE_HIGH> // r middle
+        , <&pro_micro 15 GPIO_ACTIVE_HIGH> // r ring
+        , <&pro_micro 18 GPIO_ACTIVE_HIGH>  // r pinky
+        ;
+};

app/boards/shields/meowboard/meowboard.dtsi

@@ -0,0 +1,39 @@
+#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 = <10>;
+        rows = <5>;
+
+        map = <
+RC(0,0) RC(0,1) RC(0,2) RC(0,3)                     RC(0,6) RC(0,7) RC(0,8) RC(0,9) 
+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(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(3,0) RC(3,1) RC(3,2) RC(3,3) RC(3,4)     RC(3,5) RC(3,6) RC(3,7) RC(3,8) RC(3,9) 
+RC(4,0) RC(4,1) RC(4,2) RC(4,3) RC(4,4)     RC(4,5) RC(4,6) RC(4,7) RC(4,8) RC(4,9) 
+        >;
+        
+    };
+
+    kscan0: kscan {
+        compatible = "zmk,kscan-gpio-matrix";
+        label = "KSCAN";
+
+        diode-direction = "row2col";
+        row-gpios
+            = <&pro_micro 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)> // Row A from the schematic file
+            , <&pro_micro 3 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)> // Row B from the schematic file
+            , <&pro_micro 4 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)> // Row C from the schematic file
+            , <&pro_micro 5 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)> // Row D from the schematic file
+            , <&pro_micro 6 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)> // Row E from the schematic file
+            ;
+
+    };
+};

app/boards/shields/meowboard/meowboard.keymap

@@ -0,0 +1,22 @@
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/keys.h>
+
+#define DEFAULT 0
+#define L2 1
+#define L3 2
+
+/ {
+    keymap {
+        compatible = "zmk,keymap";
+
+        default_layer {
+            bindings = <
+                &trans &trans &trans &trans      &kp 1 &kp 2 &kp 3 &trans
+                &kp X &kp V &kp L &kp C &kp W &kp K &kp H &kp G &kp F &kp Q
+                &kp U &kp I &kp A &kp E &kp O &kp S &kp N &kp R &kp T &kp D
+                &trans &trans &kp Y &kp P &kp Z &kp B &kp M &kp COMMA &kp DOT &kp J
+                &kp ESC &kp SPACE &kp TAB &kp LCTRL &mo L2 &mo L3 &kp LMETA &kp PSCRN &kp ENTER &kp DEL
+            >;
+        };
+    };
+};

app/boards/shields/meowboard/meowboard.zmk.yml

@@ -0,0 +1,12 @@
+file_format: "1"
+id: meowboard
+name: Meowboard
+type: shield
+url: https://git.julia.network/julia/meowboard
+requires:
+  - pro_micro
+features:
+  - keys
+siblings:
+  - meowboard_left
+  - meowboard_right