diff --git a/right/src/module.h b/right/src/module.h
index 487be4e..9e79620 100644
--- a/right/src/module.h
+++ b/right/src/module.h
@@ -49,8 +49,7 @@
         uint8_t pointerCount;
         uint8_t keyCount;
         uint8_t keyStates[MAX_KEY_COUNT_PER_MODULE];
-        pointer_t pointers[MAX_POINTER_COUNT_PER_MODULE];
-        key_action_t keyActions[LAYER_COUNT][MAX_KEY_COUNT_PER_MODULE];
+        uint8_t pointerRole;
     } module_t;
 
 // Variables:
diff --git a/right/src/slot.h b/right/src/slot.h
index b7fa96f..53f57c9 100644
--- a/right/src/slot.h
+++ b/right/src/slot.h
@@ -1,8 +1,14 @@
 #ifndef __SLOT_H__
 #define __SLOT_H__
 
-// Slots provide a way to avoid I2C address collision of modules as only a single module can
-// allocate a given slot.
+// A slot is a physical space that can be occupied by a module. No more than a single module
+// can occupy a slot. Think of the pogo pin connector of the left keyboard half or the right
+// keyboard half. Given their physical design, it's impossible to mount two modules to a slot.
+//
+// Slots are useful for two reasons:
+// 1. Every slot has a dedicated I2C address to avoid the I2C address collision of modules.
+// 2. Slots denote the maximum number of modules that can be mounted at a given time, allowing
+//    for the allocation of static memory structures for modules.
 
 // Macros:
 
@@ -10,18 +16,15 @@
     #define SLOT_ID_LEFT_KEYBOARD_HALF  1
     #define SLOT_ID_LEFT_MODULE         2
     #define SLOT_ID_RIGHT_MODULE        3
-    #define SLOT_ID_BOTH_SIDED_MODULE   4
 
     // The 7-bit I2C addresses below 0x08 are reserved.
-    #define SLOT_I2C_ADDRESS_LEFT_KEYBOARD_HALF 0x08
-    #define SLOT_I2C_ADDRESS_LEFT_MODULE        0x09
-    #define SLOT_I2C_ADDRESS_RIGHT_MODULE       0x0A
-    #define SLOT_I2C_ADDRESS_BOTH_SIDED_MODULE  0x0B
-    #define SLOT_I2C_ADDRESS_LEFT_KEYBOARD_HALF 0x0C
+    #define SLOT_I2C_ADDRESS_LEFT_KEYBOARD_HALF  0x08
+    #define SLOT_I2C_ADDRESS_LEFT_MODULE         0x09
+    #define SLOT_I2C_ADDRESS_RIGHT_MODULE        0x0A
 
     #define SLOT_I2C_ADDRESS_MIN 0x08
-    #define SLOT_I2C_ADDRESS_MAX 0x0C
+    #define SLOT_I2C_ADDRESS_MAX 0x0A
 
-    #define SLOT_COUNT 5
+    #define SLOT_COUNT 4
 
 #endif