[Keymap] update kejadlen keymaps (#9954)

Standardizing my keymaps under my username, rather than a keymap name.

keyboards/atreus/keymaps/kejadlen/README.md

@@ -0,0 +1,4 @@
+```shell
+make atreus/teensy2:kejadlen
+make atreus/teensy2:kejadlen:flash
+```

keyboards/atreus/keymaps/kejadlen/config.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#undef MATRIX_ROW_PINS
+#undef MATRIX_COL_PINS
+#define MATRIX_ROW_PINS { D0, D1, D2, D3 }
+#define MATRIX_COL_PINS { F6, F5, F4, F1, F0, F7, B0, B1, B2, B3, B7 }
+/* #define UNUSED_PINS */
+
+#define DIODE_DIRECTION COL2ROW
+
+#define IGNORE_MOD_TAP_INTERRUPT
+#define TAPPING_FORCE_HOLD
+
+#define USB_MAX_POWER_CONSUMPTION 50

keyboards/atreus/keymaps/kejadlen/keymap.c

@@ -0,0 +1,40 @@
+#include QMK_KEYBOARD_H
+
+#define BASE 0
+#define SYMB 1
+#define ETC 2
+
+enum macro_id {
+    TEENSY,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [BASE] = LAYOUT(
+    KC_Q,          KC_W,    KC_D,     KC_F,           KC_K,                                              KC_J,             KC_U,            KC_R,            KC_L,     KC_SCLN,
+    LT(ETC,KC_A),  KC_S,    KC_E,     KC_T,           KC_G,                                              KC_Y,             KC_N,            KC_I,            KC_O,     KC_H,
+    SFT_T(KC_Z),   KC_X,    KC_C,     KC_V,           KC_B,                                              KC_P,             KC_M,            KC_COMM,         KC_DOT,   SFT_T(KC_SLSH),
+    KC_GRV,        KC_DEL,  KC_LALT,  GUI_T(KC_TAB),  LT(SYMB,KC_BSPC),  CTL_T(KC_ESC),  SFT_T(KC_ENT),  LT(SYMB,KC_SPC),  GUI_T(KC_LEFT),  ALT_T(KC_DOWN),  KC_UP,    LCAG_T(KC_RGHT)
+  ),
+
+  [SYMB] = LAYOUT(
+    KC_EXLM,  KC_AT,    KC_LCBR,  KC_RCBR,  KC_PIPE,                      KC_EQL,   KC_7,  KC_8,   KC_9,    KC_PLUS,
+    KC_HASH,  KC_DLR,   KC_LPRN,  KC_RPRN,  KC_BSLS,                      KC_MINS,  KC_4,  KC_5,   KC_6,    KC_QUOT,
+    KC_PERC,  KC_CIRC,  KC_LBRC,  KC_RBRC,  KC_ASTR,                      KC_UNDS,  KC_1,  KC_2,   KC_3,    KC_DQUO,
+    KC_TILD,  KC_AMPR,  KC_TRNS,  KC_TRNS,  KC_TRNS,  KC_TRNS,  KC_TRNS,  KC_TRNS,  KC_0,  KC_NO,  KC_DOT,  KC_TRNS
+  ),
+
+  [ETC] = LAYOUT(
+    RESET,         KC_NO,  KC_NO,    KC_NO,    KC_PGUP,                      KC_VOLU,  KC_F7,  KC_F8,  KC_F9,   KC_HOME,
+    LT(ETC,KC_A),  KC_NO,  KC_NO,    KC_NO,    KC_PGDN,                      KC_VOLD,  KC_F4,  KC_F5,  KC_F6,   KC_END,
+    KC_NO,         KC_NO,  KC_NO,    KC_NO,    KC_DEL,                       KC_MUTE,  KC_F1,  KC_F2,  KC_F3,   KC_INS,
+    KC_TRNS,       KC_NO,  KC_TRNS,  KC_TRNS,  KC_TRNS,  KC_TRNS,  KC_TRNS,  KC_TRNS,  KC_NO,  KC_NO,  KC_NO,   KC_NO
+  ),
+};
+
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) {
+  switch(id) {
+    case TEENSY:
+      break;
+  }
+  return MACRO_NONE;
+};