Commented code

config/cradio.keymap

@@ -4,6 +4,8 @@
 #include <behaviors/num_word.dtsi> // requires auto-layer module (https://github.com/urob/zmk-auto-layer)
 #include "mouse.dtsi"
 
+// Layer defines
+
 #define DEF 0
 #define MOU 1
 #define NUM 2
@@ -16,6 +18,8 @@
 
 #define HYPER LG(LS(LC(LALT))) // HYPER key for another shortcut layer
 
+// Customizing behaviors
+
 &sk {
     quick-release; // Avoids "THis" problem (double capitalization)
     release-after-ms = <86400000>;// Default is 1000 ms, raised to 1 day to emulate Callum's behavior that requires canceling on layer key.
@@ -25,7 +29,7 @@
 
 &mt { flavor = "balanced"; };
 
-&num_word {
+&num_word { // requires auto-layer module (https://github.com/urob/zmk-auto-layer)
   continue-list = <COLON KP_DOT COMMA PLUS MINUS ASTRK SLASH EQUAL AT DOLLAR BSPC DEL TAB KP_ENTER ESC LPAR RPAR LBKT RBKT LBRC RBRC LT GT>;
   ignore-modifiers;
 };
@@ -34,7 +38,9 @@
     combos {
         compatible = "zmk,combos";
 
-        left_hand_esc {
+        // Making the keyboard more accessible for one-handed use
+
+        left_hand_esc { // Left hand is great to allow mouse usage simultaneously
             bindings = <&kp ESCAPE>;
             key-positions = <1 2 3>;
             require-prior-idle-ms = <200>;
@@ -46,18 +52,20 @@
             require-prior-idle-ms = <200>;
         };
 
-        right_hand_enter {
-            bindings = <&hrmr RA(LS(RGUI)) ENTER>;
-            key-positions = <16 17 18>;
-            require-prior-idle-ms = <200>;
-        };
-
         left_hand_backspace {
             bindings = <&hrml LA(LGUI) BSPC>;
             key-positions = <11 13>;
             require-prior-idle-ms = <200>;
         };
 
+        right_hand_enter { // Feels more natural to press ENTER with the right hand
+            bindings = <&hrmr RA(LS(RGUI)) ENTER>;
+            key-positions = <16 17 18>;
+            require-prior-idle-ms = <200>;
+        };
+
+        // Layer toggles and other gimmickry
+
         toggle_nav_for_extended_edits {
             key-positions = <30 31>;
             bindings = <&tog NAV>;
@@ -67,7 +75,7 @@
 
         sticky_sym_layer_for_one_handed_activation {
             key-positions = <32 33>;
-            bindings = <&sk SYM>; // usually just one symbol is used, so a &sk is better than &tog
+            bindings = <&sl SYM>; // usually just one symbol is used, so a &sl is better than &tog
             require-prior-idle-ms = <200>;
             layers = <DEF SYM>;
         };
@@ -97,12 +105,14 @@
             require-prior-idle-ms = <200>;
         };
 
-        toggle_aoe {
+        toggle_aoe_gaming_layer {
             key-positions = <20 21 22>;
             bindings = <&tog AOE>;
             layers = <NAV AGS>;
             require-prior-idle-ms = <200>;
         };
+
+        // SYS combos to replace a dedicated SYS layer
 
         sys_bootloader {
             key-positions = <20 21>;
@@ -123,13 +133,13 @@
             layers = <FUN>;
         };
 
-        sys_connect_to_bt2 {
+        sys_connect_to_bt2 { // Further devices can be added up to 6, but these feel enough to me
             key-positions = <23 24>;
             bindings = <&bt BT_SEL 2>;
             layers = <FUN>;
         };
 
-        sys_clear_current_bluetooth_profile {
+        sys_clear_current_bluetooth_profile { // Required to completely unpair from a device
             key-positions = <28 29>;
             bindings = <&bt BT_CLR>;
             layers = <FUN>;
@@ -163,18 +173,8 @@
 
             mods = <(MOD_LCTL)>;
         };
-
-        hp: hold_preferred_mod_tap { // Allows for space/shift+space for scrolling up with the left hand on the keyboard and the right one on the mouse
-            compatible = "zmk,behavior-hold-tap";
-            label = "THUMB_SHIFT";
-            bindings = <&kp>, <&kp>;
-
-            #binding-cells = <2>;
-            flavor = "hold-preferred";
-            tapping-term-ms = <150>;
-            quick-tap-ms = <175>;
-            hold-while-undecided;
-        };
+
+        // Swapper for Apple's CMD+TAB behavior
 
         swapper: swapper_for_apple_cmd_tab {
             compatible = "zmk,behavior-tri-state"; // requires tri-state module (https://github.com/urob/zmk-tri-state)
@@ -184,7 +184,9 @@
             ignored-key-positions = <7 16 17 18 9 19 29>; // Arrows and BSPC, ENTER and DEL for alt-tab movement and window/app controls
         };
 
-        hrml: hrml {
+        // Customized hold-tap definitions
+
+        hrml: hrml { // urob's home row mods left
             compatible = "zmk,behavior-hold-tap";
             label = "HRML";
             bindings = <&kp>, <&kp>;
@@ -198,7 +200,7 @@
             require-prior-idle-ms = <175>;
         };
 
-        hrmr: hrmr {
+        hrmr: hrmr { // urob's home row mods right
             compatible = "zmk,behavior-hold-tap";
             label = "HRMR";
             bindings = <&kp>, <&kp>;