Keymap: Merlin Learns to QMK (#3820)

* Fix up my keymaps to use more QMK features

* update 60_ansi readme

* add the start of my userspace

* begin to use my new userspace

* use more of my userspace

* spread userspace love to my clueboard

* spread userspace love to 75 layout

* add a fairly vanilla readme

* put the FNX into a userspace incase I ever want to use it for something else

* respond to drashna's code review comments

users/mechmerlin/mechmerlin.c

@@ -0,0 +1,20 @@
+#include "mechmerlin.h"
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    static uint16_t fnx_layer_timer;
+
+    switch (keycode){
+        case KC_FNX:                                    
+            if(record->event.pressed){
+                fnx_layer_timer = timer_read();
+                layer_on(_FL);
+            } else {
+                layer_off(_FL);
+                if (timer_elapsed(fnx_layer_timer) < 150) {  
+                    layer_invert(_AL);
+                }
+            }
+        return false;
+    }
+    return true;
+}

users/mechmerlin/mechmerlin.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include "quantum.h"
+
+enum userspace_layers {
+  _BL = 0, // Base Layer
+  _FL,     // Function Layer
+  _AL      // Arrow Layer
+};
+
+// Enum of custom keycodes defined in process_record_user
+enum keycodes {
+    KC_FNX, // Hold for FN layer, tap to toggle ARROWS layer. 
+};
+
+// Custom #defined keycodes
+#define KC_CTCP MT(KC_LCTL, KC_CAPS)

users/mechmerlin/readme.md

@@ -0,0 +1,3 @@
+# MechMerlin's Userspace
+
+This is a collection of my most commonly used QMK functions

users/mechmerlin/rules.mk

@@ -0,0 +1 @@
+SRC += mechmerlin.c