diff --git a/keyboards/atreus62/keymaps/mneme/Makefile b/keyboards/atreus62/keymaps/mneme/Makefile
new file mode 100644
index 000000000..f20750dbc
--- /dev/null
+++ b/keyboards/atreus62/keymaps/mneme/Makefile
@@ -0,0 +1,6 @@
+TAP_DANCE_ENABLE = yes
+BOOTMAGIC_ENABLE = no
+COMMAND_ENABLE = no
+SLEEP_LED_ENABLE = no
+UNICODE_ENABLE = yes
+NKRO_ENABLE = true
diff --git a/keyboards/atreus62/keymaps/mneme/README.md b/keyboards/atreus62/keymaps/mneme/README.md
new file mode 100644
index 000000000..54f5e21ab
--- /dev/null
+++ b/keyboards/atreus62/keymaps/mneme/README.md
@@ -0,0 +1,2 @@
+Keymap that owes just about everything to Algernon.
+Check out his keymap for the Ergodox. It's pretty damned amazing.
diff --git a/keyboards/atreus62/keymaps/mneme/config.h b/keyboards/atreus62/keymaps/mneme/config.h
new file mode 100644
index 000000000..2c2a08c05
--- /dev/null
+++ b/keyboards/atreus62/keymaps/mneme/config.h
@@ -0,0 +1,7 @@
+#define ONESHOT_TIMEOUT 3000
+#define TAPPING_TERM 200
+#define PREVENT_STUCK_MODIFIERS
+
+#define LEADER_TIMEOUT 1000
+
+#include "../../config.h"
diff --git a/keyboards/atreus62/keymaps/mneme/keymap.c b/keyboards/atreus62/keymaps/mneme/keymap.c
new file mode 100644
index 000000000..8c3f8aa43
--- /dev/null
+++ b/keyboards/atreus62/keymaps/mneme/keymap.c
@@ -0,0 +1,316 @@
+#include <stdarg.h>
+#include "atreus62.h"
+#include "led.h"
+#include "action_layer.h"
+#include "action_util.h"
+
+//avrdude -p atmega32u4 -P /dev/tty.usbmodem1411  -c avr109  -U flash:w:atreus63_default.hex
+/*
+ *WINDOWS SWEDISH
+ */
+#define KN_HALF	KC_GRV          // 1/2
+#define KN_PLUS	KC_MINS         // +
+#define KN_ACUT	KC_EQL          // ´
+#define KN_AO	  KC_LBRC         // Å
+#define KN_UMLA	KC_RBRC         // ¨
+#define KN_OE	  KC_SCLN         // Ö
+#define KN_AE	  KC_QUOT         // Ä
+#define	KN_QUOT	KC_NUHS         // '
+#define KN_LABK	KC_NUBS         // <
+#define KN_MINS KC_SLSH         // -
+#define KN_EXLM LSFT(KC_1)      // !
+#define KN_DQT  LSFT(KC_2)      // "
+#define KN_AT   RALT(KC_2)      // @
+#define KN_HASH LSFT(KC_3)      // #
+#define KN_DLR  RALT(KC_4)      // $
+#define KN_PERC LSFT(KC_5)      // %
+#define KN_AMPR LSFT(KC_6)      // &
+#define KN_SLSH LSFT(KC_7)      // /
+#define KN_LPRN LSFT(KC_8)      // (
+#define KN_RPRN LSFT(KC_9)      // )
+#define KN_EQL  LSFT(KC_0)      // =
+#define KN_UNDS LSFT(KN_MINS)   // _
+#define KN_QUES LSFT(KN_PLUS)   // ?
+#define KN_GRAV LSFT(KN_ACUT)   // `
+#define KN_LCBR RALT(KC_7)      // {
+#define KN_RCBR RALT(KC_0)      // }
+#define KN_LBRC RALT(KC_8)      // [
+#define KN_RBRC RALT(KC_9)      // ]
+#define KN_RABK LSFT(KN_LABK)   // <
+#define KN_COLN LSFT(KC_DOT)    // :
+#define KN_SCLN LSFT(KC_COMM)   // :
+#define KN_PIPE RALT(KN_LABK)   // |
+#define KN_QUES LSFT(KN_PLUS)   // ?
+#define KN_CIRC LSFT(KN_UMLA)   // ^
+#define KN_ASTR LSFT(KN_QUOT)   // *
+#define KN_TILD RALT(KN_UMLA)   // ~
+#define KN_BSLS RALT(KN_PLUS)   // 
+
+#define OSM_LCTL OSM(MOD_LCTL)
+#define OSM_LALT OSM(MOD_LALT)
+#define OSM_LSFT OSM(MOD_LSFT)
+
+#define KC_HYP LSFT(LALT(LCTL(KC_LGUI)))
+
+#define KC_COPY LCTL(KC_C)
+#define KC_PASTE LCTL(KC_V)
+#define KC_UNDO LCTL(KC_Z)
+#define KC_REDO LCTL(LSFT(KC_Z))
+
+// Layers
+enum {
+  BASE = 0,
+  NAV,
+  SYM
+};
+
+//Macros
+enum {
+  KF_1 = 0, // 1, F1
+  KF_2, // ...
+  KF_3,
+  KF_4,
+  KF_5,
+  KF_6,
+  KF_7,
+  KF_8,
+  KF_9,
+  KF_10,
+  KF_11,
+  KF_12
+};
+
+// Tapdance
+enum {
+  TD_FUN = 0,
+  TD_EQ
+};
+
+//Custom keycodes
+enum {
+  PLACEHOLDER = SAFE_RANGE
+};
+
+//State and timers
+uint16_t kf_timers[12];
+
+
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  [BASE] = {
+
+   { M(KF_11) ,M(KF_1)  ,M(KF_2)  ,M(KF_3)  ,M(KF_4) ,M(KF_5)         ,KC_NO   ,M(KF_6)        ,M(KF_7) ,M(KF_8) ,M(KF_9) ,M(KF_10) ,M(KF_12) },
+   { KC_HYP   ,KC_Q     ,KC_W     ,KC_E     ,KC_R    ,KC_T            ,KC_NO   ,KC_Y           ,KC_U    ,KC_I    ,KC_O    ,KC_P     ,KN_AO },
+   { OSM_LCTL ,KC_A     ,KC_S     ,KC_D     ,KC_F    ,KC_G            ,KC_NO   ,KC_H           ,KC_J    ,KC_K    ,KC_L    ,KN_OE    ,KN_AE },
+   { OSM_LSFT ,KC_Z     ,KC_X     ,KC_C     ,KC_V    ,KC_B            ,KC_DELT ,KC_N           ,KC_M    ,KC_COMM ,KC_DOT  ,KN_MINS  ,OSM_LSFT },
+   { MO(NAV)  ,OSM_LCTL ,OSM_LALT ,KC_LGUI  ,KC_SPC  ,LT(SYM,KC_BSPC) ,KC_TAB  ,LT(SYM,KC_ENT) ,KC_SPC  ,KC_LEAD ,KC_LALT ,KC_LCTRL ,MO(NAV) }
+
+ },
+  [NAV] = {
+
+   { KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS },
+   { KC_TRNS  ,KC_TRNS  ,KC_HOME  ,KC_UP    ,KC_END   ,KC_PGUP  ,KC_NO   ,KC_PGUP  ,KC_HOME  ,KC_UP    ,KC_END   ,KC_TRNS  ,KC_TRNS },
+   { KC_TRNS  ,KC_TRNS  ,KC_LEFT  ,KC_DOWN  ,KC_RIGHT ,KC_PGDN  ,KC_NO   ,KC_PGDN  ,KC_LEFT  ,KC_DOWN  ,KC_RIGHT ,KC_TRNS  ,KC_TRNS },
+   { KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_F11  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS },
+   { KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_F12  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_VOLD  ,KC_VOLU }
+
+  },
+  [SYM] = {
+
+   { KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,TD(TD_EQ) ,KC_NO   ,TD(TD_FUN) ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS },
+   { KC_TRNS  ,KN_LABK  ,KN_RABK  ,KN_LCBR  ,KN_RCBR  ,KN_PLUS   ,KC_NO   ,KN_AT      ,KN_DQT   ,KN_QUOT  ,KN_GRAV  ,KN_SLSH  ,KC_TRNS },
+   { KC_TRNS  ,KN_EXLM  ,KN_EQL   ,KN_LPRN  ,KN_RPRN  ,KN_MINS   ,KC_NO   ,KN_UNDS    ,KN_SCLN  ,KN_COLN  ,KN_AMPR  ,KN_PIPE  ,KC_TRNS },
+   { KC_TRNS  ,KN_DLR   ,KN_PERC  ,KN_LBRC  ,KN_RBRC  ,KN_ASTR   ,KC_TRNS ,KN_HASH    ,KC_COMM  ,KC_DOT   ,KN_QUES  ,KN_BSLS  ,KC_TRNS },
+   { KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS   ,KC_TRNS ,KC_TRNS    ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS  ,KC_TRNS }
+
+  }
+};
+
+#define TAP_ONCE(code)  \
+  register_code (code); \
+  unregister_code (code)
+
+static void m_tapn (uint8_t code, ...) {
+  uint8_t kc = code;
+  va_list ap;
+
+  va_start(ap, code);
+  do {
+    register_code(kc);
+    unregister_code(kc);
+    wait_ms(50);
+    kc = va_arg(ap, int);
+  } while (kc != 0);
+  va_end(ap);
+}
+
+static void m_handle_kf (keyrecord_t *record, uint8_t id) {
+  uint8_t code = id - KF_1;
+
+  if (record->event.pressed) {
+    kf_timers[code] = timer_read ();
+  } else {
+    uint8_t kc_base;
+    uint8_t long_press = (kf_timers[code] && timer_elapsed (kf_timers[code]) > TAPPING_TERM);
+
+    kf_timers[code] = 0;
+
+    switch(id){
+      case KF_1 ... KF_10:
+        if (long_press) {
+          // Long press
+          kc_base = KC_F1;
+        } else {
+          kc_base = KC_1;
+        }
+        code += kc_base;
+        break;
+      case KF_11:
+        code = long_press ? KC_F11 : KC_ESC;
+        break;
+      case KF_12:
+        code = long_press ? KC_F12 : KC_PLUS;
+        break;
+    }
+    register_code (code);
+    unregister_code (code);
+  }
+}
+
+const uint16_t PROGMEM fn_actions[] = {
+
+};
+
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+  switch (id) {
+    case KF_1 ... KF_12:
+      m_handle_kf(record, id);
+      break;
+  }
+  return MACRO_NONE;
+};
+
+// Custom keycodes
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  bool queue = true;
+
+  //Cancle one-shot mods.
+  switch (keycode) {
+    case KC_ESC:
+      if (record->event.pressed && get_oneshot_mods() && !has_oneshot_mods_timed_out()) {
+        clear_oneshot_mods();
+        queue = false;
+      }
+      break;
+  }
+  return queue;
+}
+
+// TAP DANCE SETTINGS
+void dance_eq (qk_tap_dance_state_t *state, void *user_data) {
+  switch (state->count) {
+    case 1: // ===
+      register_code(KC_LSHIFT);
+      m_tapn(KC_0, KC_0, KC_0, 0);
+      unregister_code(KC_LSHIFT);
+      break;
+    case 2:
+      register_code(KC_LSHIFT);
+      m_tapn(KC_1, KC_0, KC_0, 0);
+      unregister_code(KC_LSHIFT);
+      break;
+    default:
+      reset_tap_dance(state);
+  }
+}
+
+void dance_fun (qk_tap_dance_state_t *state, void *user_data) {
+  switch (state->count) {
+    case 1: // =>
+      register_code(KC_LSHIFT);
+      m_tapn(KC_0, KN_LABK, 0);
+      unregister_code(KC_LSHIFT);
+      break;
+    case 2: // () => {}
+      register_code(KC_LSHIFT);
+      m_tapn(KC_8, KC_9, KC_SPC, KC_0, KN_LABK, KC_SPC, 0);
+      unregister_code(KC_LSHIFT);
+      register_code(KC_RALT);
+      m_tapn(KC_7, 0);
+      unregister_code(KC_RALT);
+      TAP_ONCE(KC_ENT);
+      break;
+    default:
+      reset_tap_dance(state);
+  }
+}
+
+qk_tap_dance_action_t tap_dance_actions[] = {
+ [TD_FUN] = ACTION_TAP_DANCE_FN (dance_fun)
+ ,[TD_EQ] = ACTION_TAP_DANCE_FN (dance_eq)
+};
+
+// Runs just one time when the keyboard initializes.
+void matrix_init_user(void) {
+  set_unicode_input_mode(UC_WINC);
+};
+
+LEADER_EXTERNS();
+// Runs constantly in the background, in a loop.
+void matrix_scan_user(void) {
+  LEADER_DICTIONARY() {
+    leading = false;
+    leader_end();
+    SEQ_ONE_KEY(KC_L){
+      register_code(KC_RGUI);
+      TAP_ONCE(KC_L);
+      unregister_code(KC_RGUI);
+    }; // Todo
+
+    SEQ_TWO_KEYS(KC_F, KC_S){
+      register_code(KC_LCTRL);
+      TAP_ONCE(KC_S);
+      unregister_code(KC_LCTRL);
+    }; // Todo
+
+    SEQ_TWO_KEYS(KC_B, KC_D){
+      register_code(KC_LCTRL);
+      TAP_ONCE(KC_W);
+      unregister_code(KC_LCTRL);
+    }; // Todo
+
+    SEQ_ONE_KEY(KC_SLSH){
+      register_code(KC_LCTRL);
+      TAP_ONCE(KC_F);
+      unregister_code(KC_LCTRL);
+    }
+
+    SEQ_TWO_KEYS (KC_S, KC_S) {
+      // ¯\_(ツ)_/¯
+      unicode_input_start(); register_hex(0xaf); unicode_input_finish();
+      register_code (KC_RALT); TAP_ONCE (KN_PLUS); unregister_code (KC_RALT); 
+      register_code (KC_RSFT); TAP_ONCE (KC_8); unregister_code (KC_RSFT);
+      unicode_input_start (); register_hex(0x30c4); unicode_input_finish();
+      register_code (KC_RSFT); TAP_ONCE (KC_9); TAP_ONCE(KC_7); unregister_code (KC_RSFT); 
+      unicode_input_start (); register_hex(0xaf); unicode_input_finish();
+    }
+
+    SEQ_TWO_KEYS (KC_S, KC_F) {
+      // 凸(ツ)凸
+      unicode_input_start(); register_hex(0x51F8); unicode_input_finish();
+      register_code (KC_RSFT); TAP_ONCE (KC_8); unregister_code (KC_RSFT);
+      unicode_input_start (); register_hex(0x30c4); unicode_input_finish();
+      register_code (KC_RSFT); TAP_ONCE (KC_9); unregister_code (KC_RSFT); 
+      unicode_input_start (); register_hex(0x51F8); unicode_input_finish();
+    }
+
+    SEQ_TWO_KEYS (KC_S, KC_L) {
+      // λ
+      unicode_input_start();
+      register_hex(0x03bb);
+      unicode_input_finish();
+    }
+  };
+};
diff --git a/keyboards/atreus62/keymaps/mneme/unicode b/keyboards/atreus62/keymaps/mneme/unicode
new file mode 100644
index 000000000..b3f62b6d3
--- /dev/null
+++ b/keyboards/atreus62/keymaps/mneme/unicode
@@ -0,0 +1,114 @@
+Todo
+☐	2610 Todo
+☑	2611 Done
+☒ 2612 Failed
+
+Operator
+×	00D7	Multiplication
+÷	00F7	Division
+≤	2264	LessEqual
+≥	2265	MoreEqual
+± 00B1  Plusminus
+
+Math
+∏ 220F Product
+∑ 2211 Sum
+≈ 2248 Almost
+≡ 2261 Equivalent
+∞ 221E Infinity
+‰ 2030 Mille
+
+Set
+⊂ 2282 Subset
+⊃ 2283 sUperset
+∩ 2229 Intersextion
+∪ 222A Union
+∈ 2208 Element
+∉ 2209 Notelement
+∍ 220D Contains
+∌ 220C doesNotcontain
+
+Logic
+¬ 00AC Not
+∧ 2227 And
+∨ 2228 Or
+∃ 2203 Exists
+∄ 2204 Notexists
+
+Greek
+µ 00B5 Micro
+λ 03BB Lamda
+Ω 2126 Omega
+α	03B1 Alpha
+β	03B2 Beta
+γ	03B3 Gamma
+π	03C0 Pi
+δ 03B4 Delta
+
+Other
+☁ 2601 Cloud
+☼ 263C Sun
+☂ 2602 Rain
+☠ 2620 Skull
+♺ 267A Recycle
+👍1F44D thumbsUp
+👎1F44E thumbsDown
+💩 1F4A9 Poo
+
+
+//Todo
+SEQ_THREE_KEYS(KC_U, KC_G, KC_T){m_unicode(0x2610);}; // Todo
+SEQ_THREE_KEYS(KC_U, KC_G, KC_D){m_unicode(0x2611);}; // Done
+SEQ_THREE_KEYS(KC_U, KC_G, KC_F){m_unicode(0x2612);}; // Failed
+
+//Operator
+SEQ_THREE_KEYS(KC_U, KC_O, KC_M){m_unicode(0x00D7);}; //  Multiplication
+SEQ_THREE_KEYS(KC_U, KC_O, KC_D){m_unicode(0x00F7);}; //  Division
+SEQ_THREE_KEYS(KC_U, KC_O, KC_L){m_unicode(0x2264);}; //  LessEqual
+SEQ_THREE_KEYS(KC_U, KC_O, KC_M){m_unicode(0x2265);}; //  MoreEqual
+SEQ_THREE_KEYS(KC_U, KC_O, KC_P){m_unicode(0x00B1);}; //  Plusminus
+
+//Math
+SEQ_THREE_KEYS(KC_U, KC_M, KC_P){m_unicode(0x220F);}; // Product
+SEQ_THREE_KEYS(KC_U, KC_M, KC_S){m_unicode(0x2211);}; // Sum
+SEQ_THREE_KEYS(KC_U, KC_M, KC_A){m_unicode(0x2248);}; // Almost
+SEQ_THREE_KEYS(KC_U, KC_M, KC_E){m_unicode(0x2261);}; // Equivalent
+SEQ_THREE_KEYS(KC_U, KC_M, KC_I){m_unicode(0x221E);}; // Infinity
+SEQ_THREE_KEYS(KC_U, KC_M, KC_M){m_unicode(0x2030);}; // Mille
+
+//Set
+SEQ_THREE_KEYS(KC_U, KC_S, KC_S){m_unicode(0x2282);}; Subset
+SEQ_THREE_KEYS(KC_U, KC_S, KC_P){m_unicode(0x2283);}; suPerset
+SEQ_THREE_KEYS(KC_U, KC_S, KC_I){m_unicode(0x2229);}; Intersection
+SEQ_THREE_KEYS(KC_U, KC_S, KC_U){m_unicode(0x222A);}; Union
+SEQ_THREE_KEYS(KC_U, KC_S, KC_E){m_unicode(0x2208);}; Element
+SEQ_THREE_KEYS(KC_U, KC_S, KC_N){m_unicode(0x2209);}; Notelement
+SEQ_THREE_KEYS(KC_U, KC_S, KC_C){m_unicode(0x220D);}; Contains
+SEQ_THREE_KEYS(KC_U, KC_S, KC_D){m_unicode(0x220C);}; doesNotcontain
+
+//Logic
+SEQ_THREE_KEYS(KC_U, KC_L, KC_N){m_unicode(0x00AC);}; // Not
+SEQ_THREE_KEYS(KC_U, KC_L, KC_A){m_unicode(0x2227);}; // And
+SEQ_THREE_KEYS(KC_U, KC_L, KC_O){m_unicode(0x2228);}; // Or
+SEQ_THREE_KEYS(KC_U, KC_L, KC_E){m_unicode(0x2203);}; // Exists
+SEQ_THREE_KEYS(KC_U, KC_L, KC_N){m_unicode(0x2204);}; // Notexists
+
+//Greek
+SEQ_THREE_KEYS(KC_U, KC_G, KC_M){m_unicode(0x00B5);}; // Micro
+SEQ_THREE_KEYS(KC_U, KC_G, KC_L){m_unicode(0x03BB);}; // Lamda
+SEQ_THREE_KEYS(KC_U, KC_G, KC_O){m_unicode(0x2126);}; // Omega
+SEQ_THREE_KEYS(KC_U, KC_G, KC_A){m_unicode(0x03B1);}; // Alpha
+SEQ_THREE_KEYS(KC_U, KC_G, KC_B){m_unicode(0x03B2);}; // Beta
+SEQ_THREE_KEYS(KC_U, KC_G, KC_G){m_unicode(0x03B3);}; // Gamma
+SEQ_THREE_KEYS(KC_U, KC_G, KC_P){m_unicode(0x03C0);}; // Pi
+SEQ_THREE_KEYS(KC_U, KC_G, KC_D){m_unicode(0x03B4);}; // Delta
+
+//Zother
+SEQ_THREE_KEYS(KC_U, KC_Z, KC_C){m_unicode(0x2601);};  // Cloud
+SEQ_THREE_KEYS(KC_U, KC_Z, KC_S){m_unicode(0x263C);};  // Sun
+SEQ_THREE_KEYS(KC_U, KC_Z, KC_R){m_unicode(0x2602);};  // Rain
+SEQ_THREE_KEYS(KC_U, KC_Z, KC_K){m_unicode(0x2620);};  // sKull
+SEQ_THREE_KEYS(KC_U, KC_Z, KC_R){m_unicode(0x267A);};  // rEcycle
+SEQ_THREE_KEYS(KC_U, KC_Z, KC_U){m_unicode(0x1F44D);}; // thumbsUp
+SEQ_THREE_KEYS(KC_U, KC_Z, KC_D){m_unicode(0x1F44E);}; // thumbsDown
+SEQ_THREE_KEYS(KC_U, KC_Z, KC_P){m_unicode(0x1F4A9);}; // Poo