diff --git a/keyboards/kiserdesigns/splinter/config.h b/keyboards/kiserdesigns/splinter/config.h
new file mode 100644
index 00000000000..1fda20cec49
--- /dev/null
+++ b/keyboards/kiserdesigns/splinter/config.h
@@ -0,0 +1,15 @@
+// Copyright 2023 Danny Nguyen (danny@keeb.io)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+//#define SPLIT_HAND_PIN GP4
+//#define USB_VBUS_PIN GP14
+
+#define SERIAL_USART_FULL_DUPLEX
+#define SERIAL_USART_TX_PIN GP27
+#define SERIAL_USART_RX_PIN GP28
+#define SERIAL_USART_PIN_SWAP
+
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET_TIMEOUT 1000U
\ No newline at end of file
diff --git a/keyboards/kiserdesigns/splinter/info.json b/keyboards/kiserdesigns/splinter/info.json
new file mode 100644
index 00000000000..f242bd173ed
--- /dev/null
+++ b/keyboards/kiserdesigns/splinter/info.json
@@ -0,0 +1,137 @@
+{
+    "manufacturer": "Kiser Designs",
+    "url": "https://kiserdesigns.com/",
+    "maintainer": "NCKiser",
+    "keyboard_name": "Splinter",
+    "usb": {
+        "vid": "0x4B44",
+        "pid": "0x5971",
+        "device_version": "0.0.1"
+    },
+    "processor": "RP2040",
+    "bootloader": "rp2040",
+    "diode_direction": "COL2ROW",
+    "features": {
+        "audio": false,
+        "bootmagic": true,
+        "command": false,
+        "console": false,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": true,
+        "rgb_matrix": true
+    },
+    "split": {
+        "enabled": true,
+        "encoder": {
+            "right": {
+                "rotary": [
+                    {"pin_a": "GP8", "pin_b": "GP9"},
+                    {"pin_a": "GP7", "pin_b": "GP6"}
+                ]
+            }
+        },
+        "matrix_pins": {
+            "right": {
+                "cols": ["GP23", "GP24", "GP26", "GP2", "GP3", "GP4", "GP5"],
+                "rows": ["GP22", "GP25", "GP29", "GP18"]
+            }
+        }
+    },
+    "ws2812": {
+        "pin": "GP10",
+        "driver": "vendor"
+    },
+    "rgb_matrix": {
+        "driver": "ws2812",
+        "split_count": [0, 1],"animations": {
+            "breathing": true,
+            "cycle_left_right": true
+        },
+        "layout": [
+            {"flags": 4, "x": 64, "y": 112}
+        ]
+    },
+    "matrix_pins": {
+        "cols": ["GP1", "GP2", "GP3", "GP18", "GP4", "GP10", "GP25"],
+        "rows": ["GP29", "GP5", "GP0", "GP13"]
+    },
+    "encoder": {
+        "enabled": true,
+        "rotary": [
+            {"pin_a": "GP23", "pin_b": "GP24"},
+            {"pin_a": "GP22", "pin_b": "GP26"},
+            {"pin_a": "GP11", "pin_b": "GP12"},
+            {"pin_a": "GP19", "pin_b": "GP20"}
+        ]
+    },
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                { "matrix": [0, 6], "x": 0, "y": 0 },
+                { "matrix": [0, 5], "x": 1.25, "y": 0 },
+                { "matrix": [0, 4], "x": 2.25, "y": 0 },
+                { "matrix": [0, 3], "x": 3.25, "y": 0 },
+                { "matrix": [0, 2], "x": 4.25, "y": 0 },
+                { "matrix": [0, 1], "x": 5.25, "y": 0 },
+                { "matrix": [0, 0], "x": 6.25, "y": 0 },
+
+                { "matrix": [4, 0], "x": 9.25, "y": 0 },
+                { "matrix": [4, 1], "x": 10.25, "y": 0 },
+                { "matrix": [4, 2], "x": 11.25, "y": 0 },
+                { "matrix": [4, 3], "x": 12.25, "y": 0 },
+                { "matrix": [4, 4], "x": 13.25, "y": 0 },
+                { "matrix": [4, 5], "w": 1.75, "x": 14.25, "y": 0 },
+                { "matrix": [4, 6], "x": 16.25, "y": 0 },
+
+
+                { "matrix": [1, 6], "x": 0, "y": 1 },
+                { "matrix": [1, 5], "w": 1.25, "x": 1.25, "y": 1 },
+                { "matrix": [1, 4], "x": 2.5, "y": 1 },
+                { "matrix": [1, 3], "x": 3.5, "y": 1 },
+                { "matrix": [1, 2], "x": 4.5, "y": 1 },
+                { "matrix": [1, 1], "x": 5.5, "y": 1 },
+                { "matrix": [1, 0], "x": 6.5, "y": 1 },
+
+                { "matrix": [5, 0], "x": 9.5, "y": 1 },
+                { "matrix": [5, 1], "x": 10.5, "y": 1 },
+                { "matrix": [5, 2], "x": 11.5, "y": 1 },
+                { "matrix": [5, 3], "x": 12.5, "y": 1 },
+                { "matrix": [5, 4], "x": 13.5, "y": 1 },
+                { "matrix": [5, 5], "w": 1.5, "x": 14.5, "y": 1 },
+                { "matrix": [5, 6], "x": 16.25, "y": 1 },
+
+
+                { "matrix": [2, 6], "x": 0, "y": 2 },
+                { "matrix": [2, 5], "w": 1.75, "x": 1.25, "y": 2 },
+                { "matrix": [2, 4], "x": 3, "y": 2 },
+                { "matrix": [2, 3], "x": 4, "y": 2 },
+                { "matrix": [2, 2], "x": 5, "y": 2 },
+                { "matrix": [2, 1], "x": 6, "y": 2 },
+                { "matrix": [2, 0], "x": 7, "y": 2 },
+
+                { "matrix": [6, 0], "x": 10, "y": 2 },
+                { "matrix": [6, 1], "x": 11, "y": 2 },
+                { "matrix": [6, 2], "x": 12, "y": 2 },
+                { "matrix": [6, 3], "x": 13, "y": 2 },
+                { "matrix": [6, 4], "x": 14, "y": 2 },
+                { "matrix": [6, 5], "x": 15, "y": 2 },
+
+
+                { "matrix": [3, 6], "x": 0, "y": 3 },
+                { "matrix": [3, 5], "w": 1.25, "x": 1.25, "y": 3 },
+                { "matrix": [3, 4], "x": 2.5, "y": 3 },
+                { "matrix": [3, 3], "w": 1.25, "x": 3.5, "y": 3 },
+                { "matrix": [3, 2], "w": 1.25, "x": 5.25, "y": 3.25 },
+                { "matrix": [3, 0], "w": 1.75, "x": 6.5, "y": 3.25 },
+                
+                { "matrix": [7, 0], "w": 1.75, "x": 9, "y": 3.25 },
+                { "matrix": [7, 1], "w": 1.25, "x": 10.75, "y": 3.25 },
+                { "matrix": [7, 3], "w": 1.5, "x": 12.5, "y": 3 },
+                { "matrix": [7, 4], "x": 14, "y": 3 },
+                { "matrix": [7, 5], "x": 15, "y": 3 },
+                { "matrix": [7, 6], "x": 16, "y": 3 }
+            ]
+        }
+    }
+}
diff --git a/keyboards/kiserdesigns/splinter/keymaps/default/keymap.c b/keyboards/kiserdesigns/splinter/keymaps/default/keymap.c
new file mode 100644
index 00000000000..e300feaf71e
--- /dev/null
+++ b/keyboards/kiserdesigns/splinter/keymaps/default/keymap.c
@@ -0,0 +1,34 @@
+ /* This program is free software: you can redistribute it and/or modify
+  * it under the terms of the GNU General Public License as published by
+  * the Free Software Foundation, either version 2 of the License, or
+  * (at your option) any later version.
+  *
+  * This program is distributed in the hope that it will be useful,
+  * but WITHOUT ANY WARRANTY; without even the implied warranty of
+  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  * GNU General Public License for more details.
+  *
+  * You should have received a copy of the GNU General Public License
+  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  */
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT(
+    KC_HOME, KC_ESC,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,             KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, KC_DEL,
+    KC_END,  KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,             KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_ENT,  KC_INS,
+    KC_PGUP, KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,             KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_UP,
+    KC_PGDN, KC_LCTL, KC_LGUI, KC_LALT,          MO(2),   KC_SPC,           KC_SPC,  MO(3),            MO(1),   KC_LEFT, KC_DOWN, KC_RGHT
+  )
+};
+
+#if defined(ENCODER_MAP_ENABLE)
+const uint16_t PROGMEM encoder_map[][NUM_ENCODERS][2] = {
+    [0] =   { ENCODER_CCW_CW(KC_MS_WH_UP, KC_MS_WH_DOWN) },
+    [1] =   { ENCODER_CCW_CW(KC_VOLD, KC_VOLU) },
+    [2] =   { ENCODER_CCW_CW(KC_UP, KC_DOWN) },
+    [3] =   { ENCODER_CCW_CW(KC_LEFT, KC_RGHT) },
+    [4] =   { ENCODER_CCW_CW(KC_PGUP, KC_PGDN) },
+    [5] =   { ENCODER_CCW_CW(KC_HOME, KC_END) }
+};
+#endif
diff --git a/keyboards/kiserdesigns/splinter/keymaps/vial/config.h b/keyboards/kiserdesigns/splinter/keymaps/vial/config.h
new file mode 100644
index 00000000000..b779fce786d
--- /dev/null
+++ b/keyboards/kiserdesigns/splinter/keymaps/vial/config.h
@@ -0,0 +1,27 @@
+ /* This program is free software: you can redistribute it and/or modify
+  * it under the terms of the GNU General Public License as published by
+  * the Free Software Foundation, either version 2 of the License, or
+  * (at your option) any later version.
+  *
+  * This program is distributed in the hope that it will be useful,
+  * but WITHOUT ANY WARRANTY; without even the implied warranty of
+  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  * GNU General Public License for more details.
+  *
+  * You should have received a copy of the GNU General Public License
+  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  */
+#pragma once
+
+#define VIAL_KEYBOARD_UID {0xDE, 0x2A, 0x1B, 0x94, 0x07, 0x40, 0x6A, 0xD5}
+
+#define VIAL_TAP_DANCE_ENTRIES 32
+
+#define VIAL_COMBO_ENTRIES 32
+
+#define DYNAMIC_KEYMAP_LAYER_COUNT 8
+
+#define VIAL_UNLOCK_COMBO_ROWS { 0, 1 }
+#define VIAL_UNLOCK_COMBO_COLS { 0, 1 }
+
+
diff --git a/keyboards/kiserdesigns/splinter/keymaps/vial/keymap.c b/keyboards/kiserdesigns/splinter/keymaps/vial/keymap.c
new file mode 100644
index 00000000000..1f51bec68db
--- /dev/null
+++ b/keyboards/kiserdesigns/splinter/keymaps/vial/keymap.c
@@ -0,0 +1,34 @@
+ /* This program is free software: you can redistribute it and/or modify
+  * it under the terms of the GNU General Public License as published by
+  * the Free Software Foundation, either version 2 of the License, or
+  * (at your option) any later version.
+  *
+  * This program is distributed in the hope that it will be useful,
+  * but WITHOUT ANY WARRANTY; without even the implied warranty of
+  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  * GNU General Public License for more details.
+  *
+  * You should have received a copy of the GNU General Public License
+  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  */
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT(
+    KC_HOME, KC_ESC,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,             KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, KC_DEL,
+    KC_END,  KC_TAB,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,             KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_ENT,  KC_INS,
+    KC_PGUP, KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,             KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_UP,
+    KC_PGDN, KC_LCTL, KC_LGUI, KC_LALT,          MO(2),   KC_SPC,           KC_SPC,  MO(3),            MO(1),   KC_LEFT, KC_DOWN, KC_RGHT
+  )
+};
+
+#if defined(ENCODER_MAP_ENABLE)
+const uint16_t PROGMEM encoder_map[][NUM_ENCODERS][2] = {
+    [0] =   { ENCODER_CCW_CW(KC_MS_WH_UP, KC_MS_WH_DOWN),
+              ENCODER_CCW_CW(KC_VOLD, KC_VOLU),
+              ENCODER_CCW_CW(KC_UP, KC_DOWN),
+              ENCODER_CCW_CW(KC_LEFT, KC_RGHT),
+              ENCODER_CCW_CW(KC_PGUP, KC_PGDN),
+              ENCODER_CCW_CW(KC_HOME, KC_END) }
+};
+#endif
diff --git a/keyboards/kiserdesigns/splinter/keymaps/vial/rules.mk b/keyboards/kiserdesigns/splinter/keymaps/vial/rules.mk
new file mode 100644
index 00000000000..d33628ebf91
--- /dev/null
+++ b/keyboards/kiserdesigns/splinter/keymaps/vial/rules.mk
@@ -0,0 +1,5 @@
+VIA_ENABLE = yes
+VIAL_ENABLE = yes
+ENCODER_MAP_ENABLE = yes
+
+VIALRGB_ENABLE = yes
\ No newline at end of file
diff --git a/keyboards/kiserdesigns/splinter/keymaps/vial/vial.json b/keyboards/kiserdesigns/splinter/keymaps/vial/vial.json
new file mode 100644
index 00000000000..c80bf1ae9d5
--- /dev/null
+++ b/keyboards/kiserdesigns/splinter/keymaps/vial/vial.json
@@ -0,0 +1,249 @@
+{
+  "matrix": {
+    "rows": 8,
+    "cols": 7
+  },
+  "lighting": "vialrgb",
+  "layouts": {
+    "labels":[
+      "Left 3u bar",
+      "Left Encoder 1",
+      "Left Encoder 2",
+      "Left Encoder 3",
+      "Left Encoder 4",
+      "Right Encoder 1",
+      "Right Encoder 2",
+      "Right 3u Bar"
+    ],
+    "keymap": [
+      [
+        {
+          "d": true
+        },
+        "0,0\n\n\n1,0\n\n\n\n\n\ne",
+        {
+          "d": true
+        },
+        "0,1\n\n\n1,0\n\n\n\n\n\ne",
+        {
+          "x": 0.25
+        },
+        "0,6",
+        {
+          "x": 0.25
+        },
+        "0,5",
+        "0,4",
+        "0,3",
+        "0,2",
+        "0,1",
+        "0,0",
+        {
+          "x": 2
+        },
+        "4,0",
+        "4,1",
+        "4,2",
+        "4,3",
+        "4,4",
+        {
+          "w": 1.75
+        },
+        "4,5",
+        {
+          "x": 0.25
+        },
+        "4,6",
+        {
+          "x": 0.25,
+          "d": true
+        },
+        "4,0\n\n\n5,0\n\n\n\n\n\ne",
+        {
+          "d": true
+        },
+        "4,1\n\n\n5,0\n\n\n\n\n\ne"
+      ],
+      [
+        {
+          "d": true
+        },
+        "1,0\n\n\n2,0\n\n\n\n\n\ne",
+        {
+          "d": true
+        },
+        "1,1\n\n\n2,0\n\n\n\n\n\ne",
+        {
+          "x": 0.25
+        },
+        "1,6",
+        {
+          "x": 0.25,
+          "w": 1.25
+        },
+        "1,5",
+        "1,4",
+        "1,3",
+        "1,2",
+        "1,1",
+        "1,0",
+        {
+          "x": 2
+        },
+        "5,0",
+        "5,1",
+        "5,2",
+        "5,3",
+        "5,4",
+        {
+          "w": 1.5
+        },
+        "5,5",
+        {
+          "x": 0.25
+        },
+        "5,6",
+        {
+          "x": 0.25,
+          "d": true
+        },
+        "5,0\n\n\n6,0\n\n\n\n\n\ne",
+        {
+          "d": true
+        },
+        "5,1\n\n\n6,0\n\n\n\n\n\ne"
+      ],
+      [
+        {
+          "d": true
+        },
+        "2,0\n\n\n3,0\n\n\n\n\n\ne",
+        {
+          "d": true
+        },
+        "2,1\n\n\n3,0\n\n\n\n\n\ne",
+        {
+          "x": 0.25
+        },
+        "2,6",
+        {
+          "x": 0.25,
+          "w": 1.75
+        },
+        "2,5",
+        "2,4",
+        "2,3",
+        "2,2",
+        "2,1",
+        "2,0",
+        {
+          "x": 2
+        },
+        "6,0",
+        "6,1",
+        "6,2",
+        "6,3",
+        "6,4",
+        "6,5",
+        {
+          "x": 1.5
+        },
+        "4,0\n\n\n5,1\n\n\n\n\n\ne",
+        "4,1\n\n\n5,1\n\n\n\n\n\ne"
+      ],
+      [
+        {
+          "d": true
+        },
+        "3,0\n\n\n4,0\n\n\n\n\n\ne",
+        {
+          "d": true
+        },
+        "3,1\n\n\n4,0\n\n\n\n\n\ne",
+        {
+          "x": 0.25
+        },
+        "3,6",
+        {
+          "x": 0.25,
+          "w": 1.25
+        },
+        "3,5",
+        "3,4",
+        {
+          "w": 1.25
+        },
+        "3,3",
+        {
+          "x": 7.75,
+          "w": 1.5
+        },
+        "7,3",
+        "7,4",
+        "7,5",
+        "7,6",
+        {
+          "x": 0.5
+        },
+        "5,0\n\n\n6,1\n\n\n\n\n\ne",
+        "5,1\n\n\n6,1\n\n\n\n\n\ne"
+      ],
+      [
+        {
+          "y": -0.75,
+          "x": 7.5,
+          "w": 1.25
+        },
+        "3,2\n\n\n0,0",
+        {
+          "w": 1.75
+        },
+        "3,0\n\n\n0,0",
+        {
+          "x": 0.75,
+          "w": 1.75
+        },
+        "7,0\n\n\n7,0",
+        {
+          "w": 1.25
+        },
+        "7,1\n\n\n7,0"
+      ],
+      [
+        {
+          "y": -0.25
+        },
+        "0,0\n\n\n1,1\n\n\n\n\n\ne",
+        "0,1\n\n\n1,1\n\n\n\n\n\ne"
+      ],
+      [
+        {
+          "y": -0.75,
+          "x": 7.5,
+          "w": 3
+        },
+        "3,0\n\n\n0,1",
+        {
+          "x": 0.75,
+          "w": 3
+        },
+        "7,0\n\n\n7,1"
+      ],
+      [
+        {
+          "y": -0.25
+        },
+        "1,0\n\n\n2,1\n\n\n\n\n\ne",
+        "1,1\n\n\n2,1\n\n\n\n\n\ne"
+      ],
+      [
+        "2,0\n\n\n3,1\n\n\n\n\n\ne",
+        "2,1\n\n\n3,1\n\n\n\n\n\ne"
+      ],
+      [
+        "3,0\n\n\n4,1\n\n\n\n\n\ne",
+        "3,1\n\n\n4,1\n\n\n\n\n\ne"
+      ]
+    ]
+  }
+}
diff --git a/keyboards/kiserdesigns/splinter/readme.md b/keyboards/kiserdesigns/splinter/readme.md
new file mode 100644
index 00000000000..59fbb93482f
--- /dev/null
+++ b/keyboards/kiserdesigns/splinter/readme.md
@@ -0,0 +1,23 @@
+# Splinter
+
+![Splinter](https://i.imgur.com/PylZQ3S.png)
+
+*A split Minivan-esque board with encoder/macro columns and dropped spacebars envisioned by [Leviathan](https://leviathanmech.com) with a PCB by [Kiser Designs](https://kiserdesigns.com)*
+* Keyboard Maintainer: [NCKiser](https://github.com/NCKiser)
+* Hardware Supported: Splinter PCB, rp2040
+* Hardware Availability: www.kiserdesigns.com
+
+Make example for this keyboard (after setting up your build environment):
+
+    make kiserdesigns/splinter:default
+
+Flashing example for this keyboard:
+
+    make kiserdesigns/splinter:default:flash
+    
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+## Bootloader
+Enter the bootloader in 3 ways:
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix ('T' on the left, 'Y' on the right) and plug in the keyboard
+* **Physical reset button**: Briefly double-tap the RESET button on the back of the PCB, or hold BOOT then tap RESET
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available
diff --git a/keyboards/kiserdesigns/splinter/rules.mk b/keyboards/kiserdesigns/splinter/rules.mk
new file mode 100644
index 00000000000..161ec22b16e
--- /dev/null
+++ b/keyboards/kiserdesigns/splinter/rules.mk
@@ -0,0 +1 @@
+SERIAL_DRIVER = vendor