diff --git a/kmk/common/event_defs.py b/kmk/common/event_defs.py
index a8eb07f..f061f39 100644
--- a/kmk/common/event_defs.py
+++ b/kmk/common/event_defs.py
@@ -1,4 +1,5 @@
 import logging
+from collections import namedtuple
 
 from micropython import const
 
@@ -16,31 +17,46 @@ MACRO_COMPLETE_EVENT = const(8)
 logger = logging.getLogger(__name__)
 
 
+InitFirmware = namedtuple('InitFirmware', (
+    'type',
+    'keymap',
+    'row_pins',
+    'col_pins',
+    'diode_orientation',
+    'unicode_mode',
+))
+
+KeyUpDown = namedtuple('KeyUpDown', ('type', 'row', 'col'))
+KeycodeUpDown = namedtuple('KeycodeUpDown', ('type', 'keycode'))
+NewMatrix = namedtuple('NewMatrix', ('type', 'matrix'))
+BareEvent = namedtuple('BareEvent', ('type',))
+
+
 def init_firmware(keymap, row_pins, col_pins, diode_orientation, unicode_mode):
-    return {
-        'type': INIT_FIRMWARE_EVENT,
-        'keymap': keymap,
-        'row_pins': row_pins,
-        'col_pins': col_pins,
-        'diode_orientation': diode_orientation,
-        'unicode_mode': unicode_mode,
-    }
+    return InitFirmware(
+        type=INIT_FIRMWARE_EVENT,
+        keymap=keymap,
+        row_pins=row_pins,
+        col_pins=col_pins,
+        diode_orientation=diode_orientation,
+        unicode_mode=unicode_mode,
+    )
 
 
 def key_up_event(row, col):
-    return {
-        'type': KEY_UP_EVENT,
-        'row': row,
-        'col': col,
-    }
+    return KeyUpDown(
+        type=KEY_UP_EVENT,
+        row=row,
+        col=col,
+    )
 
 
 def key_down_event(row, col):
-    return {
-        'type': KEY_DOWN_EVENT,
-        'row': row,
-        'col': col,
-    }
+    return KeyUpDown(
+        type=KEY_DOWN_EVENT,
+        row=row,
+        col=col,
+    )
 
 
 def keycode_up_event(keycode):
@@ -48,10 +64,10 @@ def keycode_up_event(keycode):
     Press a key by Keycode object, bypassing the keymap. Used mostly for
     macros.
     '''
-    return {
-        'type': KEYCODE_UP_EVENT,
-        'keycode': keycode,
-    }
+    return KeycodeUpDown(
+        type=KEYCODE_UP_EVENT,
+        keycode=keycode,
+    )
 
 
 def keycode_down_event(keycode):
@@ -59,29 +75,29 @@ def keycode_down_event(keycode):
     Release a key by Keycode object, bypassing the keymap. Used mostly for
     macros.
     '''
-    return {
-        'type': KEYCODE_DOWN_EVENT,
-        'keycode': keycode,
-    }
+    return KeycodeUpDown(
+        type=KEYCODE_DOWN_EVENT,
+        keycode=keycode,
+    )
 
 
 def new_matrix_event(matrix):
-    return {
-        'type': NEW_MATRIX_EVENT,
-        'matrix': matrix,
-    }
+    return NewMatrix(
+        type=NEW_MATRIX_EVENT,
+        matrix=matrix,
+    )
 
 
 def hid_report_event():
-    return {
-        'type': HID_REPORT_EVENT,
-    }
+    return BareEvent(
+        type=HID_REPORT_EVENT,
+    )
 
 
 def macro_complete_event():
-    return {
-        'type': MACRO_COMPLETE_EVENT,
-    }
+    return BareEvent(
+        type=MACRO_COMPLETE_EVENT,
+    )
 
 
 def matrix_changed(new_matrix):
diff --git a/kmk/common/internal_keycodes.py b/kmk/common/internal_keycodes.py
index 05d42ad..2dd903e 100644
--- a/kmk/common/internal_keycodes.py
+++ b/kmk/common/internal_keycodes.py
@@ -30,7 +30,7 @@ def process_internal_key_event(state, action, changed_key, logger=None):
 
 
 def grave_escape(state, action, logger):
-    if action['type'] == KEY_DOWN_EVENT:
+    if action[0] == KEY_DOWN_EVENT:
         for key in state.keys_pressed:
             if key in {Keycodes.Modifiers.KC_LSHIFT, Keycodes.Modifiers.KC_RSHIFT}:
                 # if Shift is held, return KC_GRAVE which will become KC_TILDE on OS level
@@ -54,7 +54,7 @@ def grave_escape(state, action, logger):
                 ),
             )
 
-    elif action['type'] == KEY_UP_EVENT:
+    elif action[0] == KEY_UP_EVENT:
         return state.update(
             keys_pressed=frozenset(
                 key for key in state.keys_pressed
@@ -65,7 +65,7 @@ def grave_escape(state, action, logger):
 
 def df(state, action, changed_key, logger):
     """Switches the default layer"""
-    if action['type'] == KEY_DOWN_EVENT:
+    if action[0] == KEY_DOWN_EVENT:
         state.active_layers[0] = changed_key.layer
 
     return state
@@ -73,12 +73,12 @@ def df(state, action, changed_key, logger):
 
 def mo(state, action, changed_key, logger):
     """Momentarily activates layer, switches off when you let go"""
-    if action['type'] == KEY_UP_EVENT:
+    if action[0] == KEY_UP_EVENT:
         state.active_layers = [
             layer for layer in state.active_layers
             if layer != changed_key.layer
         ]
-    elif action['type'] == KEY_DOWN_EVENT:
+    elif action[0] == KEY_DOWN_EVENT:
         state.active_layers.append(changed_key.layer)
 
     return state
@@ -94,7 +94,7 @@ def lt(layer, kc):
 
 def tg(state, action, changed_key, logger):
     """Toggles the layer (enables it if not active, and vise versa)"""
-    if action['type'] == KEY_DOWN_EVENT:
+    if action[0] == KEY_DOWN_EVENT:
         if changed_key.layer in state.active_layers:
             state.active_layers = [
                 layer for layer in state.active_layers
@@ -108,7 +108,7 @@ def tg(state, action, changed_key, logger):
 
 def to(state, action, changed_key, logger):
     """Activates layer and deactivates all other layers"""
-    if action['type'] == KEY_DOWN_EVENT:
+    if action[0] == KEY_DOWN_EVENT:
         state.active_layers = [changed_key.layer]
 
     return state
@@ -119,7 +119,7 @@ def tt(layer):
 
 
 def unicode_mode(state, action, changed_key, logger):
-    if action['type'] == KEY_DOWN_EVENT:
+    if action[0] == KEY_DOWN_EVENT:
         state.unicode_mode = changed_key.mode
 
     return state
diff --git a/kmk/common/internal_state.py b/kmk/common/internal_state.py
index b6bc9cb..935fa55 100644
--- a/kmk/common/internal_state.py
+++ b/kmk/common/internal_state.py
@@ -26,9 +26,9 @@ class ReduxStore:
             self.logger.debug('Finished thunk')
             return None
 
-        self.logger.debug('Dispatching action: Type {} >> {}'.format(action['type'], action))
+        self.logger.debug('Dispatching action: Type {} >> {}'.format(action[0], action))
         self.state = self.reducer(self.state, action, logger=self.logger)
-        self.logger.debug('Dispatching complete: Type {}'.format(action['type']))
+        self.logger.debug('Dispatching complete: Type {}'.format(action[0]))
 
         self.logger.debug('New state: {}'.format(self.state))
 
@@ -133,28 +133,28 @@ def kmk_reducer(state=None, action=None, logger=None):
 
         return state
 
-    if action['type'] == NEW_MATRIX_EVENT:
+    if action[0] == NEW_MATRIX_EVENT:
         return state.update(
-            matrix=action['matrix'],
+            matrix=action[1],
         )
 
-    if action['type'] == KEYCODE_UP_EVENT:
+    if action[0] == KEYCODE_UP_EVENT:
         return state.update(
             keys_pressed=frozenset(
-                key for key in state.keys_pressed if key != action['keycode']
+                key for key in state.keys_pressed if key != action[1]
             ),
         )
 
-    if action['type'] == KEYCODE_DOWN_EVENT:
+    if action[0] == KEYCODE_DOWN_EVENT:
         return state.update(
             keys_pressed=(
-                state.keys_pressed | {action['keycode']}
+                state.keys_pressed | {action[1]}
             ),
         )
 
-    if action['type'] == KEY_UP_EVENT:
-        row = action['row']
-        col = action['col']
+    if action[0] == KEY_UP_EVENT:
+        row = action[1]
+        col = action[2]
 
         changed_key = find_key_in_map(state, row, col)
 
@@ -182,9 +182,9 @@ def kmk_reducer(state=None, action=None, logger=None):
 
         return newstate
 
-    if action['type'] == KEY_DOWN_EVENT:
-        row = action['row']
-        col = action['col']
+    if action[0] == KEY_DOWN_EVENT:
+        row = action[1]
+        col = action[2]
 
         changed_key = find_key_in_map(state, row, col)
 
@@ -212,16 +212,16 @@ def kmk_reducer(state=None, action=None, logger=None):
 
         return newstate
 
-    if action['type'] == INIT_FIRMWARE_EVENT:
+    if action[0] == INIT_FIRMWARE_EVENT:
         return state.update(
-            keymap=action['keymap'],
-            row_pins=action['row_pins'],
-            col_pins=action['col_pins'],
-            diode_orientation=action['diode_orientation'],
-            unicode_mode=action['unicode_mode'],
+            keymap=action.keymap,
+            row_pins=action.row_pins,
+            col_pins=action.col_pins,
+            diode_orientation=action.diode_orientation,
+            unicode_mode=action.unicode_mode,
             matrix=[
-                [False for c in action['col_pins']]
-                for r in action['row_pins']
+                [False for c in action.col_pins]
+                for r in action.row_pins
             ],
         )
 
@@ -229,10 +229,10 @@ def kmk_reducer(state=None, action=None, logger=None):
     # they should be doing things. This could/should arguably be folded back
     # into KEY_UP_EVENT and KEY_DOWN_EVENT, but for now it's nice to separate
     # this out for debugging's sake.
-    if action['type'] == HID_REPORT_EVENT:
+    if action[0] == HID_REPORT_EVENT:
         return state
 
-    if action['type'] == MACRO_COMPLETE_EVENT:
+    if action[0] == MACRO_COMPLETE_EVENT:
         return state.update(macro_pending=None)
 
     # On unhandled events, log and do not mutate state
diff --git a/kmk/micropython/pyb_hid.py b/kmk/micropython/pyb_hid.py
index 49e2977..98d733c 100644
--- a/kmk/micropython/pyb_hid.py
+++ b/kmk/micropython/pyb_hid.py
@@ -43,7 +43,7 @@ class HIDHelper:
         self.report_non_mods = memoryview(self._evt)[3:]
 
     def _subscription(self, state, action):
-        if action['type'] == HID_REPORT_EVENT:
+        if action[0] == HID_REPORT_EVENT:
             self.clear_all()
 
             consumer_key = None