diff --git a/docs/examples.md b/docs/examples.md
index 0d493bb..c8ea87d 100644
--- a/docs/examples.md
+++ b/docs/examples.md
@@ -8,26 +8,9 @@ when you release the layer key. The example uses the MO though any layer switch
 LAYER_1 key in your keymap, and it's ready to go! You can change animations, colors, or anything in there.
 
 ```python
-from kmk.handlers.layers import (mo_pressed, mo_released)
-from kmk.keys import KC, layer_key_validator, make_argumented_key
-
-
-def layer1p(*args, **kwargs):
-    keyboard.pixels.set_hsv_fill(100, 100, 100)
-    return mo_pressed(*args, **kwargs)
-
-
-def layer1r(*args, **kwargs):
-    keyboard.pixels.set_hsv_fill.fill(0, 0, 0)
-    return mo_released(*args, **kwargs)
-   
-make_argumented_key(
-    validator=layer_key_validator,
-    names=('LAYER_1',),
-    on_press=layer1p,
-    on_release=layer1r,
-)
-
-LAYER_1 = KC.LAYER_1(1)
+LAYER_1 = KC.MO(1)
+LAYER_1.after_press_handler(lambda *args, **kwargs: keyboard.pixels.set_hsv_fill(100, 100, 100))
+LAYER_1.after_release_handler(lambda *args, **kwargs: keyboard.pixels.set_hsv_fill(0, 0, 0))
 
+keyboard.keymap = [ ....... LAYER_1 ....... ]
 ```
\ No newline at end of file
diff --git a/docs/hardware.md b/docs/hardware.md
index 6d30553..799afa2 100644
--- a/docs/hardware.md
+++ b/docs/hardware.md
@@ -4,12 +4,13 @@
 | ----- | ------- | --------------- | ----- |
 | [Adafruit Feather M4 Express](https://www.adafruit.com/product/3857) | Atmel SAMD51 (Cortex M4F) | CircuitPython | An economical solution for basic USB keyboards |
 | [Adafruit ItsyBitsy M4 Express](https://www.adafruit.com/product/3800) | Atmel SAMD51 (Cortex M4F) | CircuitPython | A smaller solution for basic USB keyboards |
+| [Adafruit Feather NRF52840 Express](https://www.adafruit.com/product/4062) | Cortex M4F/nrf52840 | CircuitPython | Supports USB HID and soon BLE (Bluetooth) |
+| [Seeed nRF52840 Micro Dev Kit](https://www.seeedstudio.com/nRF52840-Micro-Development-Kit-p-3079.html) | M4F/nrf52840 | CircuitPython | Supports USB HID and soon BLE (Bluetooth) |
 
 
 ## Support Planned/WIP
 | Board | Chipset | Python Platform | Notes |
 | ----- | ------- | --------------- | ----- |
-| [Seeed nRF52840 Micro Dev Kit](https://www.seeedstudio.com/nRF52840-Micro-Development-Kit-p-3079.html) | nRF52840 | [CircuitPython](https://github.com/KMKfw/circuitpython/tree/topic-nrf52840-mdk) | This is basically as bleeding edge as it gets. Will support BLE HID to PC as well as BLE split boards |
 | [Planck rev6 Keyboard](https://olkb.com/planck) | STM32F303 | CircuitPython | Requires porting CircuitPython to STM32F3. |
 | [Proton C Controller?](https://olkb.com/parts/qmk-proton-c) | STM32F303CCT6 | CircuitPython | Requires porting CircuitPython to STM32F3. |
 
@@ -20,7 +21,7 @@ Pull requests are welcome and encouraged to add support for new
 keyboards/microcontrollers. The base requirements for device support
 - CircuitPython
 - 256KB of flash storage
-- HID over USB or Bluetooth.
+- HID over USB and/or Bluetooth.
 
 ## Secondary Support
 
diff --git a/docs/keys.md b/docs/keys.md
index acb1511..46e8d29 100644
--- a/docs/keys.md
+++ b/docs/keys.md
@@ -4,7 +4,7 @@
 > can be found in `keycodes.md`. It's probably worth a look at the raw source if
 > you're stumped: `kmk/keys.py`.
 
-This is a bunch of documentation about how physical keypress translate to
+This is a bunch of documentation about how a physical keypress translates to
 events (and the lifecycle of said events) in KMK. It's somewhat technical, but
 if you're looking to extend your keyboard's functionality with extra code,
 you'll need at least some of this technical knowledge.
diff --git a/docs/led.md b/docs/led.md
index 1145c05..cbadbb0 100644
--- a/docs/led.md
+++ b/docs/led.md
@@ -1,15 +1,6 @@
 # LED (Mono color backlight)
 Want your keyboard to shine? Add some lights!
  
-## Usage
-At minimum you will need to make sure that this set in either your keymap is importing an MCU directly, or it should be included in the predefined boards if they support them.
-
-|Define               |Description                                  |
-|---------------------|---------------------------------------------|
-|`keyboard.led_pin`   |The pin connected to the data pin of the LEDs|
-
-Then you should be able to use the keycodes below to change the LED lighting to your liking.
-
 ## [Keycodes]
 
 |Key                          |Aliases            |Description                 |
@@ -52,3 +43,10 @@ If you want to create your own animations, or for example, change the lighting i
 |`keyboard.led.animation_mode`   |`static`   |This can be changed to any modes included, or to something custom for user animations. Any string is valid |
 |`keyboard.led.animation_speed`  |`1`        |Increases animation speed of most animations. Recommended 1-5, Maximum 10.                                 |
 
+# Troubleshooting
+Make sure that your board supports LED backlight by checking for a line with "LED_PIN". If it does not, you can add it to your keymap.
+
+|Define               |Description                                  |
+|---------------------|---------------------------------------------|
+|`keyboard.led_pin`   |The pin connected to the data pin of the LEDs|
+
diff --git a/docs/rgb.md b/docs/rgb.md
index ec4c7e6..e3f5266 100644
--- a/docs/rgb.md
+++ b/docs/rgb.md
@@ -11,16 +11,6 @@ Currently we support the following addressable LEDs:
  * SK6812, SK6812MINI, SK6805
  * All neopixels
  
-## Usage
-At minimum you will need to make sure that these are set in either your keymap is importing an MCU directly, or it should be included in the predefined boards if they support them.
-
-|Define               |Description                                  |
-|---------------------|---------------------------------------------|
-|`keyboard.pixel_pin` |The pin connected to the data pin of the LEDs|
-|`keyboard.num_pixels`|The number of LEDs connected                 |
-
-Then you should be able to use the keycodes below to change the RGB lighting to your liking.
-
 ### Color Selection
 
 KMK uses [Hue, Saturation, and Value](https://en.wikipedia.org/wiki/HSL_and_HSV) to select colors rather than RGB. The color wheel below demonstrates how this works.
@@ -116,4 +106,13 @@ keyboard.pixels.neopixel() # <-- This is the neopixel object
 If your colors are incorrect, check the pixel order of your specific LED's. Here are some common ones.
  * WS2811, WS2812, WS2812B, WS2812C are all GRB (1, 0, 2)
  * SK6812, SK6812MINI, SK6805 are all GRB (1, 0, 2)
- * Neopixels will vary depending on which one you buy. It will be listed on the product page.
+ * Neopixels will vary depending on which one you buy. It will be listed on the product page.# Troubleshooting
+ 
+### Lights don't turn on
+Make sure that your board supports LED backlight by checking for a line with "PIXEL_PIN". If it does not, you can add it to your keymap.
+If you added the LED's yourself, you will also need to set num_pixels to the number of installed LED's in total.
+
+|Define               |Description                                  |
+|---------------------|---------------------------------------------|
+|`keyboard.pixel_pin` |The pin connected to the data pin of the LEDs|
+|`keyboard.num_pixels`|The number of LEDs connected                 |
diff --git a/docs/support.md b/docs/support.md
index d7a7fb1..fba00e9 100644
--- a/docs/support.md
+++ b/docs/support.md
@@ -1,7 +1,6 @@
 # Support
 If you are having any issues in installing, configuring, or otherwise issues with KMK, please reach out to us and
-our community here. We do have a bridge to allow communication between the platforms as well, though we recommend
-using Matrix if possible.
+our community here. 
 
 # Matrix
 * [Software Support](https://matrix.to/#/#kmk-support:kmkfw.io)
diff --git a/kmk/boards/kitsym4_iris.py b/kmk/boards/iris_converter.py
similarity index 93%
rename from kmk/boards/kitsym4_iris.py
rename to kmk/boards/iris_converter.py
index e07a763..30bdce2 100644
--- a/kmk/boards/kitsym4_iris.py
+++ b/kmk/boards/iris_converter.py
@@ -16,8 +16,11 @@ class Firmware(_Firmware):
 
     split_flip = True
     split_offsets = (6, 6, 6, 6, 6)
-    split_type = "UART"
+    split_type = 'UART'
     uart_pin = board.SCL
+    extra_data_pin = board.SDA
+    rgb_pixel_pin = board.TX
+    led_pin = board.D7
 
     coord_mapping = []
     coord_mapping.extend(ic(0, x) for x in range(12))
diff --git a/kmk/boards/levinson_converter.py b/kmk/boards/levinson_converter.py
new file mode 100644
index 0000000..965cfc6
--- /dev/null
+++ b/kmk/boards/levinson_converter.py
@@ -0,0 +1,19 @@
+import board
+
+from kmk.consts import DiodeOrientation
+from kmk.mcus.circuitpython_samd51 import Firmware as _Firmware
+from kmk.pins import Pin as P
+
+
+class Firmware(_Firmware):
+    col_pins = (P.A2, P.A3, P.A4, P.A5, P.SCK, P.MOSI)
+    row_pins = (P.D13, P.D11, P.D10, P.D9)
+    diode_orientation = DiodeOrientation.COLUMNS
+
+    split_type = 'UART'
+    split_flip = True
+    split_offsets = [6, 6, 6, 6, 6]
+    uart_pin = board.SCL
+    extra_data_pin = board.SDA
+    rgb_pixel_pin = board.TX
+    #led_pin = board.D7
diff --git a/kmk/boards/nyquist_converter.py b/kmk/boards/nyquist_converter.py
new file mode 100644
index 0000000..cd0c1f2
--- /dev/null
+++ b/kmk/boards/nyquist_converter.py
@@ -0,0 +1,19 @@
+import board
+
+from kmk.consts import DiodeOrientation
+from kmk.mcus.circuitpython_samd51 import Firmware as _Firmware
+from kmk.pins import Pin as P
+
+
+class Firmware(_Firmware):
+    col_pins = (P.RX, P.A1, P.A2, P.A3, P.A4, P.A5)
+    row_pins = (P.D13, P.D11, P.D10, P.D9, P.D7)
+    diode_orientation = DiodeOrientation.COLUMNS
+
+    split_type = 'UART'
+    split_flip = True
+    split_offsets = [6, 6, 6, 6, 6]
+    uart_pin = board.SCL
+    rgb_pixel_pin = board.TX
+    extra_data_pin = board.SDA
+
diff --git a/kmk/firmware.py b/kmk/firmware.py
index 98e4fa3..685be68 100644
--- a/kmk/firmware.py
+++ b/kmk/firmware.py
@@ -150,16 +150,22 @@ class Firmware:
             self._send_hid()
 
     def _handle_matrix_report(self, update=None):
-        """
+        '''
         Bulk processing of update code for each cycle
         :param update:
-        """
+        '''
         if update is not None:
-            self._state.matrix_changed(
-                update[0],
-                update[1],
-                update[2],
-            )
+            # TODO Sort why this is needed when mashing keys on split half
+            # This is a dirty hack to prevent crashes in unrealistic cases
+            try:
+                self._state.matrix_changed(
+                    update[0],
+                    update[1],
+                    update[2],
+                )
+            except Exception as e:
+                print(e)
+                print(update)
 
     def _send_to_master(self, update):
         if self.split_master_left:
@@ -181,11 +187,11 @@ class Firmware:
         return None
 
     def _send_debug(self, message):
-        """
+        '''
         Prepends DEB and appends a newline to allow debug messages to
         be detected and handled differently than typical keypresses.
         :param message: Debug message
-        """
+        '''
         if self.uart is not None:
             self.uart.write('DEB')
             self.uart.write(message, '\n')
@@ -221,9 +227,9 @@ class Firmware:
         if self.split_flip and not self._master_half():
             self.col_pins = list(reversed(self.col_pins))
 
-        if self.split_side == "Left":
+        if self.split_side == 'Left':
             self.split_master_left = self._master_half()
-        elif self.split_side == "Right":
+        elif self.split_side == 'Right':
             self.split_master_left = not self._master_half()
 
         if self.uart_pin is not None:
@@ -262,7 +268,7 @@ class Firmware:
                 del self.leader_dictionary[k]
 
         if self.debug_enabled:
-            print("Firin' lazers. Keyboard is booted.")
+            print('Firin\' lazers. Keyboard is booted.')
 
         while True:
             state_changed = False
diff --git a/kmk/keys.py b/kmk/keys.py
index 40ee7d5..1a0a608 100644
--- a/kmk/keys.py
+++ b/kmk/keys.py
@@ -432,18 +432,18 @@ make_key(code=39, names=('0', 'N0'))
 gc.collect()
 
 # More ASCII standard keys
-make_key(code=40, names=('ENTER', 'ENT', "\n"))
+make_key(code=40, names=('ENTER', 'ENT', '\n'))
 make_key(code=41, names=('ESCAPE', 'ESC'))
 make_key(code=42, names=('BACKSPACE', 'BSPC', 'BKSP'))
-make_key(code=43, names=('TAB', "\t"))
+make_key(code=43, names=('TAB', '\t'))
 make_key(code=44, names=('SPACE', 'SPC', ' '))
 make_key(code=45, names=('MINUS', 'MINS', '-'))
 make_key(code=46, names=('EQUAL', 'EQL', '='))
 make_key(code=47, names=('LBRACKET', 'LBRC', '['))
 make_key(code=48, names=('RBRACKET', 'RBRC', ']'))
-make_key(code=49, names=('BACKSLASH', 'BSLASH', 'BSLS', "\\"))
+make_key(code=49, names=('BACKSLASH', 'BSLASH', 'BSLS', '\\'))
 make_key(code=51, names=('SEMICOLON', 'SCOLON', 'SCLN', ';'))
-make_key(code=52, names=('QUOTE', 'QUOT', "'"))
+make_key(code=52, names=('QUOTE', 'QUOT', '\''))
 make_key(code=53, names=('GRAVE', 'GRV', 'ZKHK', '`'))
 make_key(code=54, names=('COMMA', 'COMM', ','))
 make_key(code=55, names=('DOT', '.'))
@@ -531,7 +531,7 @@ make_key(code=134, names=('KP_EQUAL_AS400', 'NUMPAD_EQUAL_AS400'))
 gc.collect()
 
 # Making life better for folks on tiny keyboards especially: exposes
-# the "shifted" keys as raw keys. Under the hood we're still
+# the 'shifted' keys as raw keys. Under the hood we're still
 # sending Shift+(whatever key is normally pressed) to get these, so
 # for example `KC_AT` will hold shift and press 2.
 make_shifted_key('GRAVE', names=('TILDE', 'TILD', '~'))
@@ -551,7 +551,7 @@ make_shifted_key('LBRACKET', names=('LEFT_CURLY_BRACE', 'LCBR', '{'))
 make_shifted_key('RBRACKET', names=('RIGHT_CURLY_BRACE', 'RCBR', '}'))
 make_shifted_key('BACKSLASH', names=('PIPE', '|'))
 make_shifted_key('SEMICOLON', names=('COLON', 'COLN', ':'))
-make_shifted_key('QUOTE', names=('DOUBLE_QUOTE', 'DQUO', 'DQT', '"'))
+make_shifted_key('QUOTE', names=('DOUBLE_QUOTE', 'DQUO', 'DQT', '\''))
 make_shifted_key('COMMA', names=('LEFT_ANGLE_BRACKET', 'LABK', '<'))
 make_shifted_key('DOT', names=('RIGHT_ANGLE_BRACKET', 'RABK', '>'))
 make_shifted_key('SLSH', names=('QUESTION', 'QUES', '?'))
@@ -584,9 +584,9 @@ make_key(code=152, names=('LANG9',))
 
 gc.collect()
 
-# Consumer ("media") keys. Most known keys aren't supported here. A much
+# Consumer ('media') keys. Most known keys aren't supported here. A much
 # longer list used to exist in this file, but the codes were almost certainly
-# incorrect, conflicting with each other, or otherwise "weird". We'll add them
+# incorrect, conflicting with each other, or otherwise 'weird'. We'll add them
 # back in piecemeal as needed. PRs welcome.
 #
 # A super useful reference for these is http://www.freebsddiary.org/APC/usb_hid_usages.php
diff --git a/user_keymaps/Default/nyquist_converter.py b/user_keymaps/Default/nyquist_converter.py
new file mode 100644
index 0000000..391ed7c
--- /dev/null
+++ b/user_keymaps/Default/nyquist_converter.py
@@ -0,0 +1,137 @@
+from kmk.boards.nyquist_converter import Firmware
+from kmk.keys import KC
+
+keyboard = Firmware()
+
+_______ = KC.TRNS
+XXXXXXX = KC.NO
+
+LOWER = KC.MO(3)
+RAISE = KC.MO(4)
+ADJUST = KC.MO(5)
+
+keyboard.keymap = [
+    # Qwerty
+    # ,-----------------------------------------------------------------------------------.
+    # |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+    # |------+------+------+------+------+------+------+------+------+------+------+------|
+    # | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Del  |
+    # |------+------+------+------+------+-------------+------+------+------+------+------|
+    # | Esc  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+    # |------+------+------+------+------+------|------+------+------+------+------+------|
+    # | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+    # |------+------+------+------+------+------+------+------+------+------+------+------|
+    # |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+    # `-----------------------------------------------------------------------------------'
+    [
+        [KC.GRV,  KC.N1,   KC.N2,   KC.N3,   KC.N4,   KC.N5,   KC.N6,   KC.N7,   KC.N8,   KC.N9,   KC.N0,   KC.BSPC],
+        [KC.TAB,  KC.Q,    KC.W,    KC.E,    KC.R,    KC.T,    KC.Y,    KC.U,    KC.I,    KC.O,    KC.P,    KC.DEL],
+        [KC.ESC,  KC.A,    KC.S,    KC.D,    KC.F,    KC.G,    KC.H,    KC.J,    KC.K,    KC.L,    KC.SCLN, KC.QUOT],
+        [KC.LSFT, KC.Z,    KC.X,    KC.C,    KC.V,    KC.B,    KC.N,    KC.M,    KC.COMM, KC.DOT,  KC.SLSH, KC.ENT],
+        [ADJUST,  KC.LCTL, KC.LALT, KC.LGUI, LOWER,   KC.SPC,  KC.SPC,  RAISE,   KC.LEFT, KC.DOWN, KC.UP,   KC.RGHT],
+    ],
+
+    # Colemak
+    # ,-----------------------------------------------------------------------------------.
+    # |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+    # |------+------+------+------+------+------+------+------+------+------+------+------|
+    # | Tab  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Del  |
+    # |------+------+------+------+------+-------------+------+------+------+------+------|
+    # | Esc  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
+    # |------+------+------+------+------+------|------+------+------+------+------+------|
+    # | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
+    # |------+------+------+------+------+------+------+------+------+------+------+------|
+    # |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+    # `-----------------------------------------------------------------------------------'
+    [
+        [KC.GRV,  KC.N1,   KC.N2,   KC.N3,   KC.N4,   KC.N5,   KC.N6,   KC.N7,   KC.N8,   KC.N9,   KC.N0,   KC.BSPC],
+        [KC.TAB,  KC.Q,    KC.W,    KC.F,    KC.P,    KC.G,    KC.J,    KC.L,    KC.U,    KC.Y,    KC.SCLN, KC.DEL],
+        [KC.ESC,  KC.A,    KC.R,    KC.S,    KC.T,    KC.D,    KC.H,    KC.N,    KC.E,    KC.I,    KC.O,    KC.QUOT],
+        [KC.LSFT, KC.Z,    KC.X,    KC.C,    KC.V,    KC.B,    KC.K,    KC.M,    KC.COMM, KC.DOT,  KC.SLSH, KC.ENT],
+        [ADJUST,  KC.LCTL, KC.LALT, KC.LGUI, LOWER,   KC.SPC,  KC.SPC,  RAISE,   KC.LEFT, KC.DOWN, KC.UP,   KC.RGHT],
+    ],
+
+    # Dvorak
+    # ,-----------------------------------------------------------------------------------.
+    # |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+    # |------+------+------+------+------+------+------+------+------+------+------+------|
+    # | Tab  |   "  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  | Del  |
+    # |------+------+------+------+------+-------------+------+------+------+------+------|
+    # | Esc  |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  /   |
+    # |------+------+------+------+------+------|------+------+------+------+------+------|
+    # | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
+    # |------+------+------+------+------+------+------+------+------+------+------+------|
+    # |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
+    # `-----------------------------------------------------------------------------------'
+    [
+        [KC.GRV,  KC.N1,   KC.N2,   KC.N3,   KC.N4,   KC.N5,   KC.N6,   KC.N7,   KC.N8,   KC.N9,   KC.N0,   KC.BSPC],
+        [KC.TAB,  KC.QUOT, KC.COMM, KC.DOT,  KC.P,    KC.Y,    KC.F,    KC.G,    KC.C,    KC.R,    KC.L,    KC.DEL],
+        [KC.ESC,  KC.A,    KC.O,    KC.E,    KC.U,    KC.I,    KC.D,    KC.H,    KC.T,    KC.N,    KC.S,    KC.SLSH],
+        [KC.LSFT, KC.SCLN, KC.Q,    KC.J,    KC.K,    KC.X,    KC.B,    KC.M,    KC.W,    KC.V,    KC.Z,    KC.ENT],
+        [ADJUST,  KC.LCTL, KC.LALT, KC.LGUI, LOWER,   KC.SPC,  KC.SPC,  RAISE,   KC.LEFT, KC.DOWN, KC.UP,   KC.RGHT],
+    ],
+
+    # Lower
+    # ,-----------------------------------------------------------------------------------.
+    # |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
+    # |------+------+------+------+------+-------------+------+------+------+------+------|
+    # |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Del  |
+    # |------+------+------+------+------+-------------+------+------+------+------+------|
+    # | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   .  |   +  |     |    \  |  |   |
+    # |------+------+------+------+------+------|------+------+------+------+------+------|
+    # |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO ~ |ISO | |      |      |Enter |
+    # |------+------+------+------+------+------+------+------+------+------+------+------|
+    # |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+    # `-----------------------------------------------------------------------------------'
+    [
+        [KC.TILD, KC.EXLM, KC.AT,   KC.HASH, KC.DLR,  KC.PERC, KC.CIRC, KC.AMPR, KC.ASTR, KC.LPRN, KC.RPRN, KC.BSPC],
+        [KC.TILD, KC.EXLM, KC.AT,   KC.HASH, KC.DLR,  KC.PERC, KC.CIRC, KC.AMPR, KC.ASTR, KC.LPRN, KC.RPRN, KC.DEL],
+        [KC.DEL,  KC.F1,   KC.F2,   KC.F3,   KC.F4,   KC.F5,   KC.F6,   KC.UNDS, KC.PLUS, KC.LCBR, KC.RCBR, KC.PIPE],
+        [_______, KC.F7,   KC.F8,   KC.F9,   KC.F10,  KC.F11,  KC.F12,  KC.NUHS, KC.NUBS, _______, _______, _______],
+        [_______, _______, _______, _______, _______, _______, _______, _______, KC.MNXT, KC.VOLD, KC.VOLU, KC.MPLY],
+    ],
+
+    # Raise
+    # ,-----------------------------------------------------------------------------------.
+    # |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+    # |------+------+------+------+------+-------------+------+------+------+------+------|
+    # |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Del  |
+    # |------+------+------+------+------+-------------+------+------+------+------+------|
+    # | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
+    # |------+------+------+------+------+------|------+------+------+------+------+------|
+    # |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO # |ISO / |      |      |Enter |
+    # |------+------+------+------+------+------+------+------+------+------+------+------|
+    # |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+    # `-----------------------------------------------------------------------------------'
+    [
+        [KC.GRV,  KC.N1,   KC.N2,   KC.N3,   KC.N4,   KC.N5,   KC.N6,   KC.N7,   KC.N8,   KC.N9,   KC.N0,   KC.BSPC],
+        [KC.GRV,  KC.N1,   KC.N2,   KC.N3,   KC.N4,   KC.N5,   KC.N6,   KC.N7,   KC.N8,   KC.N9,   KC.N0,   KC.DEL],
+        [KC.DEL,  KC.F1,   KC.F2,   KC.F3,   KC.F4,   KC.F5,   KC.F6,   KC.MINS, KC.EQL,  KC.LBRC, KC.RBRC, KC.BSLS],
+        [_______, KC.F7,   KC.F8,   KC.F9,   KC.F10,  KC.F11,  KC.F12,  KC.NUHS, KC.NUBS, _______, _______, _______],
+        [_______, _______, _______, _______, _______, _______, _______, _______, KC.MNXT, KC.VOLD, KC.VOLU, KC.MPLY],
+    ],
+
+    # Adjust
+    #  ,-----------------------------------------------------------------------------------.
+    # |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |
+    # |------+------+------+------+------+------+------+------+------+------+------+------|
+    # |      | Reset|RGB Tg|RGB Md|Hue Up|Hue Dn|Sat Up|Sat Dn|Val Up|Val Dn|      |  Del |
+    # |------+------+------+------+------+-------------+------+------+------+------+------|
+    # |      |      |      |      |      |      |      |Qwerty|Colemk|Dvorak|      |      |
+    # |------+------+------+------+------+------|------+------+------+------+------+------|
+    # |      |      |      |      |      |      |      |      |      |      |      |      |
+    # |------+------+------+------+------+------+------+------+------+------+------+------|
+    # |      |      |      |      |      |             |      |      |      |      |      |
+    # `-----------------------------------------------------------------------------------'
+    [
+        [KC.F1,   KC.F2,   KC.F3,      KC.F4,      KC.F5,      KC.F6,      KC.F7,      KC.F8,      KC.F9,      KC.F10,     KC.F11,  KC.F12],
+        [_______, _______, KC.RGB.TOG, KC.RGB.MOD, KC.RGB.HUD, KC.RGB.HUI, KC.RGB.SAD, KC.RGB.SAI, KC.RGB.VAD, KC.RGB.VAI, _______, KC.DEL],
+        [_______, _______, _______,    _______,    _______,    _______,    _______,    KC.DF(0),   KC.DF(1),   KC.DF(2),   _______, _______],
+        [_______, _______, _______,    _______,    _______,    _______,    _______,    _______,    _______,    _______,    _______, _______],
+        [_______, _______, _______,    _______,    _______,    _______,    _______,    _______,    _______,    _______,    _______, _______],
+    ],
+
+]
+
+if __name__ == '__main__':
+    keyboard.go()
diff --git a/user_keymaps/kdb424/levinson_m4.py b/user_keymaps/kdb424/levinson_m4.py
index 5dc16a6..5313e6c 100644
--- a/user_keymaps/kdb424/levinson_m4.py
+++ b/user_keymaps/kdb424/levinson_m4.py
@@ -13,12 +13,6 @@ keyboard.col_pins = (P.A2, P.A3, P.A4, P.A5, P.SCK, P.MOSI)
 keyboard.row_pins = (P.D13, P.D11, P.D10, P.D9)
 keyboard.diode_orientation = DiodeOrientation.COLUMNS
 
-keyboard.split_type = "UART"
-keyboard.split_flip = True
-keyboard.split_offsets = [6, 6, 6, 6]
-keyboard.uart_pin = board.SCL
-keyboard.extra_data_pin = board.SDA
-
 # ------------------User level config variables ---------------------------------------
 keyboard.leader_mode = LeaderMode.TIMEOUT
 keyboard.unicode_mode = UnicodeMode.LINUX
diff --git a/user_keymaps/kdb424/nyquist_converter.py b/user_keymaps/kdb424/nyquist_converter.py
index 4b92c68..ca579d9 100644
--- a/user_keymaps/kdb424/nyquist_converter.py
+++ b/user_keymaps/kdb424/nyquist_converter.py
@@ -1,26 +1,10 @@
-import board
-import busio
-
-from kmk.consts import DiodeOrientation, LeaderMode, UnicodeMode
-from kmk.handlers.layers import (df_pressed, lt_pressed, lt_released,
-                                 mo_pressed, mo_released)
+from kmk.boards.nyquist_converter import Firmware
+from kmk.consts import LeaderMode, UnicodeMode
 from kmk.handlers.sequences import compile_unicode_string_sequences
-from kmk.keys import KC, layer_key_validator, make_argumented_key
-from kmk.mcus.circuitpython_samd51 import Firmware
-from kmk.pins import Pin as P
+from kmk.keys import KC
 
 keyboard = Firmware()
 
-keyboard.col_pins = (P.RX, P.A1, P.A2, P.A3, P.A4, P.A5)
-keyboard.row_pins = (P.D13, P.D11, P.D10, P.D9, P.D7)
-keyboard.diode_orientation = DiodeOrientation.COLUMNS
-
-keyboard.split_type = "UART"
-keyboard.split_flip = True
-keyboard.split_offsets = [6, 6, 6, 6, 6]
-keyboard.uart_pin = board.SCL
-keyboard.extra_data_pin = board.SDA
-
 # ------------------User level config variables ---------------------------------------
 keyboard.leader_mode = LeaderMode.TIMEOUT
 keyboard.unicode_mode = UnicodeMode.LINUX
@@ -29,7 +13,6 @@ keyboard.leader_timeout = 2000
 keyboard.debug_enabled = True
 
 # RGB Config (underglow)
-keyboard.rgb_pixel_pin = board.TX
 keyboard.rgb_num_pixels = 12
 
 keyboard.rgb_val_limit = 150
@@ -67,89 +50,13 @@ keyboard.leader_dictionary = {
     'yay': emoticons.YAY,
 }
 
-
-df = 0
-gw = 1
-r1 = 2
-r2 = 3
-r3 = 4
-
-
-def base(*args, **kwargs):
-    return df_pressed(*args, **kwargs)
-
-
-def layer1p(*args, **kwargs):
-    return mo_pressed(*args, **kwargs)
-
-
-def layer1r(*args, **kwargs):
-    return mo_released(*args, **kwargs)
-
-
-def layer2p(*args, **kwargs):
-    return lt_pressed(*args, **kwargs)
-
-
-def layer2r(*args, **kwargs):
-    return lt_released(*args, **kwargs)
-
-
-def layer3p(*args, **kwargs):
-    return mo_pressed(*args, **kwargs)
-
-
-def layer3r(*args, **kwargs):
-    return mo_released(*args, **kwargs)
-
-
-def gaming(*args, **kwargs):
-    return df_pressed(*args, **kwargs)
-
-
-make_argumented_key(
-    validator=layer_key_validator,
-    names=('LAYER_BASE',),
-    on_press=base,
-)
-
-make_argumented_key(
-    validator=layer_key_validator,
-    names=('LAYER_1',),
-    on_press=layer1p,
-    on_release=layer1r,
-)
-
-make_argumented_key(
-    validator=layer_key_validator,
-    names=('LAYER_2',),
-    on_press=layer2p,
-    on_release=layer2r,
-)
-
-make_argumented_key(
-    validator=layer_key_validator,
-    names=('LAYER_3',),
-    on_press=layer3p,
-    on_release=layer3r,
-)
-
-
-make_argumented_key(
-    validator=layer_key_validator,
-    names=('LAYER_GAMING',),
-    on_press=gaming,
-)
-
 _______ = KC.TRNS
 XXXXXXX = KC.NO
 SHFT_INS = KC.LSHIFT(KC.INS)
 
-BASE = KC.LAYER_BASE(df)
-LAYER_1 = KC.LAYER_1(r1)
-LT2_SP = KC.LAYER_2(r2, KC.SPC)
-LAYER_3 = KC.LAYER_3(r3)
-GAMING = KC.LAYER_GAMING(gw)
+BASE = KC.DF(0)
+LT2_SP = KC.LT(3, KC.SPC)
+GAMING = KC.DF(1)
 
 # ---------------------- Keymap ---------------------------------------------------------
 
@@ -160,7 +67,7 @@ keyboard.keymap = [
         [KC.GRV,   KC.QUOTE, KC.COMMA, KC.DOT,  KC.P,    KC.Y,   KC.F,   KC.G,      KC.C,    KC.R,    KC.L,  KC.BKSP],
         [KC.TAB,   KC.A,     KC.O,     KC.E,    KC.U,    KC.I,   KC.D,   KC.H,      KC.T,    KC.N,    KC.S,  KC.ENT],
         [KC.LSFT,  KC.SCLN,  KC.Q,     KC.J,    KC.K,    KC.X,   KC.B,   KC.M,      KC.W,    KC.V,    KC.Z,  KC.SLSH],
-        [KC.LCTRL, KC.LGUI,  KC.LALT,  KC.RGB_TOG, LAYER_1, KC.LT(r2, KC.SPC), KC.LT(r2, KC.SPC), LAYER_3, KC.LEFT, KC.DOWN, KC.UP, KC.RIGHT],
+        [KC.LCTRL, KC.LGUI,  KC.LALT,  KC.RGB_TOG, KC.MO(2), LT2_SP, LT2_SP, KC.MO(4), KC.LEFT, KC.DOWN, KC.UP, KC.RIGHT],
     ],
     [
         # gw
@@ -168,7 +75,7 @@ keyboard.keymap = [
         [KC.TAB,   KC.QUOT, KC.COMM, KC.DOT, KC.P,  KC.Y,   KC.F,   KC.G,      KC.C,    KC.R,    KC.L,  KC.BKSP],
         [KC.ESC,   KC.A,    KC.O,    KC.E,   KC.U,  KC.I,   KC.D,   KC.H,      KC.T,    KC.N,    KC.S,  KC.ENT],
         [KC.LSFT,  KC.SCLN, KC.Q,    KC.J,   KC.K,  KC.X,   KC.B,   KC.M,      KC.W,    KC.V,    KC.Z,  KC.SLSH],
-        [KC.LCTRL, KC.LGUI, KC.LALT, KC.F1,  KC.F2, KC.SPC, KC.LT(r2, KC.SPC), KC.MO(r3), KC.LEFT, KC.DOWN, KC.UP, KC.RIGHT],
+        [KC.LCTRL, KC.LGUI, KC.LALT, KC.F1,  KC.F2, KC.SPC, LT2_SP, KC.MO(4), KC.LEFT, KC.DOWN, KC.UP, KC.RIGHT],
     ],
     [
         # r1
diff --git a/user_keymaps/klardotsh/kitsym4_iris.py b/user_keymaps/klardotsh/kitsym4_iris.py
index 9b7f425..a46f872 100644
--- a/user_keymaps/klardotsh/kitsym4_iris.py
+++ b/user_keymaps/klardotsh/kitsym4_iris.py
@@ -1,4 +1,4 @@
-from kmk.boards.kitsym4_iris import Firmware
+from kmk.boards.iris_converter import Firmware
 from kmk.consts import LeaderMode, UnicodeMode
 from kmk.handlers.sequences import compile_unicode_string_sequences as cuss
 from kmk.handlers.sequences import send_string, simple_key_sequence