34 files changed, 1017 insertions, 190 deletions

diff --git a/keyboards/gmmk/pro/ansi/ansi.c b/keyboards/gmmk/pro/ansi/ansi.c
new file mode 100644
index 000000000..1df3319fd
--- /dev/null
+++ b/keyboards/gmmk/pro/ansi/ansi.c
@@ -0,0 +1,241 @@
+/* Copyright 2021 Gigahawk
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "ansi.h"
+
+#ifdef RGB_MATRIX_ENABLE
+// clang-format off
+led_config_t g_led_config = {{
+    { 4,      NO_LED, NO_LED, 95,     65,     79, 5,      28 },
+    { 8,      2,      9,      0,      10,     75, 1,      7  },
+    { 14,     3,      15,     NO_LED, 16,     86, 6,      13 },
+    { 20,     18,     21,     23,     22,     94, 12,     19 },
+    { 25,     30,     26,     31,     27,     32, 29,     24 },
+    { 41,     36,     42,     37,     43,     38, 35,     40 },
+    { 46,     89,     47,     34,     48,     72, 78,     45 },
+    { 52,     39,     53,     97,     54,     82, 44,     51 },
+    { 58,     63,     59,     64,     NO_LED, 60, 62,     57 },
+    { 11,     90,     55,     17,     33,     49, NO_LED, 69 },
+    { NO_LED, 85,     93,     61,     96,     66, 50,     56 }
+}, {
+    {0, 0},     // 0, ESC, k13
+    {0, 15},    // 1, ~, k16
+    {4, 26},    // 2, Tab, k11
+    {5, 38},    // 3, Caps, k21
+    {9, 49},    // 4, Sh_L, k00
+    {2, 61},    // 5, Ct_L, k06
+    {18, 0},    // 6, F1, k26
+    {14, 15},   // 7, 1, k17
+    {22, 26},   // 8, Q, k10
+    {25, 38},   // 9, A, k12
+    {33, 49},   // 10, Z, k14
+    {20, 61},   // 11, Win_L, k90
+    {33, 0},    // 12, F2, k36
+    {29, 15},   // 13, 2, k27
+    {36, 26},   // 14, W, k20
+    {40, 38},   // 15, S, k22
+    {47, 49},   // 16, X, k24
+    {38, 61},   // 17, Alt_L, k93
+    {47, 0},    // 18, F3, k31
+    {43, 15},   // 19, 3, k37
+    {51, 26},   // 20, E, k30
+    {54, 38},   // 21, D, k32
+    {61, 49},   // 22, C, k34
+    {61, 0},    // 23, F4, k33
+    {58, 15},   // 24, 4, k47
+    {65, 26},   // 25, R, k40
+    {69, 38},   // 26, F, k42
+    {76, 49},   // 27, V, k44
+    {79, 0},    // 28, F5, k07
+    {72, 15},   // 29, 5, k46
+    {79, 26},   // 30, T, k41
+    {83, 38},   // 31, G, k43
+    {90, 49},   // 32, B, k45
+    {92, 61},   // 33, SPACE, k94
+    {94, 0},    // 34, F6, k63
+    {87, 15},   // 35, 6, k56
+    {94, 26},   // 36, Y, k51
+    {98, 38},   // 37, H, k53
+    {105, 49},  // 38, N, k55
+    {108, 0},   // 39, F7, k71
+    {101, 15},  // 40, 7, k57
+    {108, 26},  // 41, U, k50
+    {112, 38},  // 42, J, k52
+    {119, 49},  // 43, M, k54
+    {123, 0},   // 44, F8, k76
+    {116, 15},  // 45, 8, k67
+    {123, 26},  // 46, I, k60
+    {126, 38},  // 47, K, k62
+    {134, 49},  // 48, ,, k64
+    {145, 61},  // 49, Alt_R, k95
+    {141, 0},   // 50, F9, ka6
+    {130, 15},  // 51, 9, k77
+    {137, 26},  // 52, O, k70
+    {141, 38},  // 53, L, k72
+    {148, 49},  // 54, ., k74
+    {159, 61},  // 55, FN, k92
+    {155, 0},   // 56, F10, ka7
+    {145, 15},  // 57, 0, k87
+    {152, 26},  // 58, P, k80
+    {155, 38},  // 59, ;, k82
+    {163, 49},  // 60, ?, k85
+    {170, 0},   // 61, F11, ka3
+    {159, 15},  // 62, -, k86
+    {166, 26},  // 63, [, k81
+    {170, 38},  // 64, ", k83
+    {173, 61},  // 65, Ct_R, k04
+    {184, 0},   // 66, F12, ka5
+    {0, 8},     // 67, LED, l01
+    {224, 8},   // 68, LED, l11
+    {202, 0},   // 69, Prt, k97
+    {0, 15},    // 70, LED, l02
+    {224, 15},  // 71, LED, l12
+    {224, 15},  // 72, Del, k65
+    {0, 21},    // 73, LED, l03
+    {224, 21},  // 74, LED, l13
+    {224, 26},  // 75, PgUp, k15
+    {0, 28},    // 76, LED, l04
+    {224, 28},  // 77, LED, l14
+    {173, 15},  // 78, =, k66
+    {220, 64},  // 79, Right, k05
+    {0, 35},    // 80, LED, l05
+    {224, 35},  // 81, LED, l15
+    {224, 49},  // 82, End, k75
+    {0, 42},    // 83, LED, l06
+    {224, 42},  // 84, LED, l16
+    {195, 15},  // 85, BSpc, ka1
+    {224, 38},  // 86, PgDn, k25
+    {0, 48},    // 87, LED, l07
+    {224, 48},  // 88, LED, l17
+    {181, 26},  // 89, ], k61
+    {182, 49},  // 90, Sh_R, k91
+    {0, 55},    // 91, LED, l08
+    {224, 55},  // 92, LED, l18
+    {199, 26},  // 93, \, ka2
+    {206, 52},  // 94, Up, k35
+    {191, 64},  // 95, Left, k03
+    {193, 38},  // 96, Enter, ka4
+    {206, 64}   // 97, Down, k73
+}, {
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 4, 2, 2, 4, 2, 2,
+    4, 2, 2, 4, 4, 2, 2, 4, 2, 2, 4, 4, 2, 2, 4, 4, 2, 2, 4, 4, 4, 4, 4
+}};
+
+const aw_led g_aw_leds[DRIVER_LED_TOTAL] = {
+    {0, CS1_SW1, CS2_SW1, CS3_SW1},        //  0, ESC, k13
+    {0, CS4_SW1, CS5_SW1, CS6_SW1},        //  1, ~, k16
+    {0, CS7_SW1, CS8_SW1, CS9_SW1},        //  2, Tab, k11
+    {0, CS10_SW1, CS11_SW1, CS12_SW1},     //  3, Caps, k21
+    {0, CS13_SW1, CS14_SW1, CS15_SW1},     //  4, Sh_L, k00
+    {0, CS16_SW1, CS17_SW1, CS18_SW1},     //  5, Ct_L, k06
+    {0, CS1_SW2, CS2_SW2, CS3_SW2},        //  6, F1, k26
+    {0, CS4_SW2, CS5_SW2, CS6_SW2},        //  7, 1, k17
+    {0, CS7_SW2, CS8_SW2, CS9_SW2},        //  8, Q, k10
+    {0, CS10_SW2, CS11_SW2, CS12_SW2},     //  9, A, k12
+    {0, CS13_SW2, CS14_SW2, CS15_SW2},     //  10, Z, k14
+    {0, CS16_SW2, CS17_SW2, CS18_SW2},     //  11, Win_L, k90
+    {0, CS1_SW3, CS2_SW3, CS3_SW3},        //  12, F2, k36
+    {0, CS4_SW3, CS5_SW3, CS6_SW3},        //  13, 2, k27
+    {0, CS7_SW3, CS8_SW3, CS9_SW3},        //  14, W, k20
+    {0, CS10_SW3, CS11_SW3, CS12_SW3},     //  15, S, k22
+    {0, CS13_SW3, CS14_SW3, CS15_SW3},     //  16, X, k24
+    {0, CS16_SW3, CS17_SW3, CS18_SW3},     //  17, Alt_L, k93
+    {0, CS1_SW4, CS2_SW4, CS3_SW4},        //  18, F3, k31
+    {0, CS4_SW4, CS5_SW4, CS6_SW4},        //  19, 3, k37
+    {0, CS7_SW4, CS8_SW4, CS9_SW4},        //  20, E, k30
+    {0, CS10_SW4, CS11_SW4, CS12_SW4},     //  21, D, k32
+    {0, CS13_SW4, CS14_SW4, CS15_SW4},     //  22, C, k34
+    {0, CS1_SW5, CS2_SW5, CS3_SW5},        //  23, F4, k33
+    {0, CS4_SW5, CS5_SW5, CS6_SW5},        //  24, 4, k47
+    {0, CS7_SW5, CS8_SW5, CS9_SW5},        //  25, R, k40
+    {0, CS10_SW5, CS11_SW5, CS12_SW5},     //  26, F, k42
+    {0, CS13_SW5, CS14_SW5, CS15_SW5},     //  27, V, k44
+    {0, CS1_SW6, CS2_SW6, CS3_SW6},        //  28, F5, k07
+    {0, CS4_SW6, CS5_SW6, CS6_SW6},        //  29, 5, k46
+    {0, CS7_SW6, CS8_SW6, CS9_SW6},        //  30, T, k41
+    {0, CS10_SW6, CS11_SW6, CS12_SW6},     //  31, G, k43
+    {0, CS13_SW6, CS14_SW6, CS15_SW6},     //  32, B, k45
+    {0, CS16_SW6, CS17_SW6, CS18_SW6},     //  33, SPACE, k94
+    {0, CS1_SW7, CS2_SW7, CS3_SW7},        //  34, F6, k63
+    {0, CS4_SW7, CS5_SW7, CS6_SW7},        //  35, 6, k56
+    {0, CS7_SW7, CS8_SW7, CS9_SW7},        //  36, Y, k51
+    {0, CS10_SW7, CS11_SW7, CS12_SW7},     //  37, H, k53
+    {0, CS13_SW7, CS14_SW7, CS15_SW7},     //  38, N, k55
+    {0, CS1_SW8, CS2_SW8, CS3_SW8},        //  39, F7, k71
+    {0, CS4_SW8, CS5_SW8, CS6_SW8},        //  40, 7, k57
+    {0, CS7_SW8, CS8_SW8, CS9_SW8},        //  41, U, k50
+    {0, CS10_SW8, CS11_SW8, CS12_SW8},     //  42, J, k52
+    {0, CS13_SW8, CS14_SW8, CS15_SW8},     //  43, M, k54
+    {0, CS1_SW9, CS2_SW9, CS3_SW9},        //  44, F8, k76
+    {0, CS4_SW9, CS5_SW9, CS6_SW9},        //  45, 8, k67
+    {0, CS7_SW9, CS8_SW9, CS9_SW9},        //  46, I, k60
+    {0, CS10_SW9, CS11_SW9, CS12_SW9},     //  47, K, k62
+    {0, CS13_SW9, CS14_SW9, CS15_SW9},     //  48, ,, k64
+    {0, CS16_SW9, CS17_SW9, CS18_SW9},     //  49, Alt_R, k95
+    {0, CS1_SW10, CS2_SW10, CS3_SW10},     //  50, F9, ka6
+    {0, CS4_SW10, CS5_SW10, CS6_SW10},     //  51, 9, k77
+    {0, CS7_SW10, CS8_SW10, CS9_SW10},     //  52, O, k70
+    {0, CS10_SW10, CS11_SW10, CS12_SW10},  //  53, L, k72
+    {0, CS13_SW10, CS14_SW10, CS15_SW10},  //  54, ., k74
+    {0, CS16_SW10, CS17_SW10, CS18_SW10},  //  55, FN, k92
+    {0, CS1_SW11, CS2_SW11, CS3_SW11},     //  56, F10, ka7
+    {0, CS4_SW11, CS5_SW11, CS6_SW11},     //  57, 0, k87
+    {0, CS7_SW11, CS8_SW11, CS9_SW11},     //  58, P, k80
+    {0, CS10_SW11, CS11_SW11, CS12_SW11},  //  59, ;, k82
+    {0, CS13_SW11, CS14_SW11, CS15_SW11},  //  60, ?, k85
+    {0, CS1_SW12, CS2_SW12, CS3_SW12},     //  61, F11, ka3
+    {0, CS4_SW12, CS5_SW12, CS6_SW12},     //  62, -, k86
+    {0, CS7_SW12, CS8_SW12, CS9_SW12},     //  63, [, k81
+    {0, CS10_SW12, CS11_SW12, CS12_SW12},  //  64, ", k83
+    {0, CS16_SW12, CS17_SW12, CS18_SW12},  //  65, Ct_R, k04
+
+    {1, CS1_SW1, CS2_SW1, CS3_SW1},     //  66, F12, ka5
+    {1, CS13_SW1, CS14_SW1, CS15_SW1},  //  67, LED, l01
+    {1, CS16_SW1, CS17_SW1, CS18_SW1},  //  68, LED, l11
+    {1, CS4_SW2, CS5_SW2, CS6_SW2},     //  69, Prt, k97
+    {1, CS13_SW2, CS14_SW2, CS15_SW2},  //  70, LED, l02
+    {1, CS16_SW2, CS17_SW2, CS18_SW2},  //  71, LED, l12
+    {1, CS4_SW3, CS5_SW3, CS6_SW3},     //  72, Del, k65
+    {1, CS13_SW3, CS14_SW3, CS15_SW3},  //  73, LED, l03
+    {1, CS16_SW3, CS17_SW3, CS18_SW3},  //  74, LED, l13
+    {1, CS4_SW4, CS5_SW4, CS6_SW4},     //  75, PgUp, k15
+    {1, CS13_SW4, CS14_SW4, CS15_SW4},  //  76, LED, l04
+    {1, CS16_SW4, CS17_SW4, CS18_SW4},  //  77, LED, l14
+    {1, CS1_SW5, CS2_SW5, CS3_SW5},     //  78, =, k66
+    {1, CS10_SW5, CS11_SW5, CS12_SW5},  //  79, Right, k05
+    {1, CS13_SW5, CS14_SW5, CS15_SW5},  //  80, LED, l05
+    {1, CS16_SW5, CS17_SW5, CS18_SW5},  //  81, LED, l15
+    {1, CS4_SW6, CS5_SW6, CS6_SW6},     //  82, End, k75
+    {1, CS13_SW6, CS14_SW6, CS15_SW6},  //  83, LED, l06
+    {1, CS16_SW6, CS17_SW6, CS18_SW6},  //  84, LED, l16
+    {1, CS1_SW7, CS2_SW7, CS3_SW7},     //  85, BSpc, ka1
+    {1, CS4_SW7, CS5_SW7, CS6_SW7},     //  86, PgDn, k25
+    {1, CS13_SW7, CS14_SW7, CS15_SW7},  //  87, LED, l07
+    {1, CS16_SW7, CS17_SW7, CS18_SW7},  //  88, LED, l17
+    {1, CS1_SW8, CS2_SW8, CS3_SW8},     //  89, ], k61
+    {1, CS4_SW8, CS5_SW8, CS6_SW8},     //  90, Sh_R, k91
+    {1, CS13_SW8, CS14_SW8, CS15_SW8},  //  91, LED, l08
+    {1, CS16_SW8, CS17_SW8, CS18_SW8},  //  92, LED, l18
+    {1, CS1_SW9, CS2_SW9, CS3_SW9},     //  93, \, ka2
+    {1, CS4_SW9, CS5_SW9, CS6_SW9},     //  94, Up, k35
+    {1, CS4_SW10, CS5_SW10, CS6_SW10},  //  95, Left, k03
+    {1, CS1_SW11, CS2_SW11, CS3_SW11},  //  96, Enter, ka4
+    {1, CS4_SW11, CS5_SW11, CS6_SW11},  //  97, Down, k73
+};
+// clang-format on
+#endif
diff --git a/keyboards/gmmk/pro/ansi/ansi.h b/keyboards/gmmk/pro/ansi/ansi.h
new file mode 100644
index 000000000..ab08d6659
--- /dev/null
+++ b/keyboards/gmmk/pro/ansi/ansi.h
@@ -0,0 +1,52 @@
+/* Copyright 2021 Gigahawk
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "pro.h"
+
+#define ___ KC_NO
+
+//  ESC  F1   F2   F3   F4   F5   F6   F7   F8   F9   F10  F11  F12  Prt      Rotary(Mute)
+//  `    1    2    3    4    5    6    7    8    9    0    -    =    BSpc     Del
+//  Tab  Q    W    E    R    T    Y    U    I    O    P    [    ]    \        PgUp
+//  Caps A    S    D    F    G    H    J    K    L    ;    '        Enter     PgDn
+//  Sh_L Z    X    C    V    B    N    M    ,    .    /       Sh_R       Up   End
+//  Ct_L    Win_L   Alt_L      SPACE          Alt_R   FN   Ct_R     Left Down Right
+
+// clang-format off
+#define LAYOUT( \
+    k13, k26, k36, k31, k33, k07, k63, k71, k76, ka6, ka7, ka3, ka5, k97,     k01, \
+    k16, k17, k27, k37, k47, k46, k56, k57, k67, k77, k87, k86, k66, ka1,     k65, \
+    k11, k10, k20, k30, k40, k41, k51, k50, k60, k70, k80, k81, k61, ka2,     k15, \
+    k21, k12, k22, k32, k42, k43, k53, k52, k62, k72, k82, k83,     ka4,      k25, \
+    k00, k14, k24, k34, k44, k45, k55, k54, k64, k74, k85,    k91,       k35, k75, \
+    k06,    k90,    k93,       k94,           k95,    k92, k04,     k03, k73, k05  \
+) \
+{ \
+    { k00, k01, ___, k03, k04, k05, k06, k07}, \
+    { k10, k11, k12, k13, k14, k15, k16, k17}, \
+    { k20, k21, k22, ___, k24, k25, k26, k27}, \
+    { k30, k31, k32, k33, k34, k35, k36, k37}, \
+    { k40, k41, k42, k43, k44, k45, k46, k47}, \
+    { k50, k51, k52, k53, k54, k55, k56, k57}, \
+    { k60, k61, k62, k63, k64, k65, k66, k67}, \
+    { k70, k71, k72, k73, k74, k75, k76, k77}, \
+    { k80, k81, k82, k83, ___, k85, k86, k87}, \
+    { k90, k91, k92, k93, k94, k95, ___, k97}, \
+    { ___, ka1, ka2, ka3, ka4, ka5, ka6, ka7}  \
+}
+// clang-format on
diff --git a/keyboards/gmmk/pro/ansi/config.h b/keyboards/gmmk/pro/ansi/config.h
new file mode 100644
index 000000000..7c68375b2
--- /dev/null
+++ b/keyboards/gmmk/pro/ansi/config.h
@@ -0,0 +1,23 @@
+/* Copyright 2021 Gigahawk
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "config_common.h"
+
+#define DRIVER_1_LED_TOTAL 66
+#define DRIVER_2_LED_TOTAL 32
+#define DRIVER_LED_TOTAL (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)
diff --git a/keyboards/gmmk/pro/ansi/info.json b/keyboards/gmmk/pro/ansi/info.json
new file mode 100644
index 000000000..d3b326a7b
--- /dev/null
+++ b/keyboards/gmmk/pro/ansi/info.json
@@ -0,0 +1,111 @@
+{
+    "keyboard_name": "GMMK Pro (ANSI)",
+    "url": "https://www.pcgamingrace.com/products/glorious-gmmk-pro-75-barebone-black-reservation",
+    "maintainer": "GloriousThrall",
+    "width": 16.5,
+    "height": 6.5,
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"x":0, "y":0},
+
+                {"x":1.25, "y":0},
+                {"x":2.25, "y":0},
+                {"x":3.25, "y":0},
+                {"x":4.25, "y":0},
+
+                {"x":5.5, "y":0},
+                {"x":6.5, "y":0},
+                {"x":7.5, "y":0},
+                {"x":8.5, "y":0},
+
+                {"x":9.75, "y":0},
+                {"x":10.75, "y":0},
+                {"x":11.75, "y":0},
+                {"x":12.75, "y":0},
+
+                {"x":14, "y":0},
+                {"x":15.5, "y":0},
+
+                {"x":0, "y":1.25},
+                {"x":1, "y":1.25},
+                {"x":2, "y":1.25},
+                {"x":3, "y":1.25},
+                {"x":4, "y":1.25},
+                {"x":5, "y":1.25},
+                {"x":6, "y":1.25},
+                {"x":7, "y":1.25},
+                {"x":8, "y":1.25},
+                {"x":9, "y":1.25},
+                {"x":10, "y":1.25},
+                {"x":11, "y":1.25},
+                {"x":12, "y":1.25},
+                {"x":13, "y":1.25, "w":2},
+
+                {"x":15.5, "y":1.25},
+
+                {"x":0, "y":2.25, "w":1.5},
+                {"x":1.5, "y":2.25},
+                {"x":2.5, "y":2.25},
+                {"x":3.5, "y":2.25},
+                {"x":4.5, "y":2.25},
+                {"x":5.5, "y":2.25},
+                {"x":6.5, "y":2.25},
+                {"x":7.5, "y":2.25},
+                {"x":8.5, "y":2.25},
+                {"x":9.5, "y":2.25},
+                {"x":10.5, "y":2.25},
+                {"x":11.5, "y":2.25},
+                {"x":12.5, "y":2.25},
+                {"x":13.5, "y":2.25, "w":1.5},
+
+                {"x":15.5, "y":2.25},
+
+                {"x":0, "y":3.25, "w":1.75},
+                {"x":1.75, "y":3.25},
+                {"x":2.75, "y":3.25},
+                {"x":3.75, "y":3.25},
+                {"x":4.75, "y":3.25},
+                {"x":5.75, "y":3.25},
+                {"x":6.75, "y":3.25},
+                {"x":7.75, "y":3.25},
+                {"x":8.75, "y":3.25},
+                {"x":9.75, "y":3.25},
+                {"x":10.75, "y":3.25},
+                {"x":11.75, "y":3.25},
+                {"x":12.75, "y":3.25, "w":2.25},
+
+                {"x":15.5, "y":3.25},
+
+                {"x":0, "y":4.25, "w":2.25},
+                {"x":2.25, "y":4.25},
+                {"x":3.25, "y":4.25},
+                {"x":4.25, "y":4.25},
+                {"x":5.25, "y":4.25},
+                {"x":6.25, "y":4.25},
+                {"x":7.25, "y":4.25},
+                {"x":8.25, "y":4.25},
+                {"x":9.25, "y":4.25},
+                {"x":10.25, "y":4.25},
+                {"x":11.25, "y":4.25},
+                {"x":12.25, "y":4.25, "w":1.75},
+
+                {"x":14.25, "y":4.5},
+
+                {"x":15.5, "y":4.25},
+
+                {"x":0, "y":5.25, "w":1.25},
+                {"x":1.25, "y":5.25, "w":1.25},
+                {"x":2.5, "y":5.25, "w":1.25},
+                {"x":3.75, "y":5.25, "w":6.25},
+                {"x":10, "y":5.25},
+                {"x":11, "y":5.25},
+                {"x":12, "y":5.25},
+
+                {"x":13.25, "y":5.5},
+                {"x":14.25, "y":5.5},
+                {"x":15.25, "y":5.5}
+            ]
+        }
+    }
+}
diff --git a/keyboards/gmmk/pro/ansi/keymaps/alexmarmon/keymap.c b/keyboards/gmmk/pro/ansi/keymaps/alexmarmon/keymap.c
new file mode 100644
index 000000000..99504de95
--- /dev/null
+++ b/keyboards/gmmk/pro/ansi/keymaps/alexmarmon/keymap.c
@@ -0,0 +1,66 @@
+/* Copyright 2021 Glorious, LLC <salman@pcgamingrace.com>
+   Copyright 2021 alexmarmon
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+//      ESC      F1       F2       F3       F4       F5       F6       F7       F8       F9       F10      F11      F12      Prt           Rotary(Mute)
+//      ~        1        2        3        4        5        6        7        8        9        0         -       (=)      BackSpc           Del
+//      Tab      Q        W        E        R        T        Y        U        I        O        P        [        ]        \                 PgUp
+//      Caps     A        S        D        F        G        H        J        K        L        ;        "                 Enter             PgDn
+//      Sh_L              Z        X        C        V        B        N        M        ,        .        ?                 Sh_R     Up       End
+//      Ct_L     Alt_L    Win_L                               SPACE                               Ct_R        Alt_R   FN     Left     Down     Right
+
+
+    // The FN key by default maps to a momentary toggle to layer 1 to provide access to the RESET key (to put the board into bootloader mode). Without
+    // this mapping, you have to open the case to hit the button on the bottom of the PCB (near the USB cable attachment) while plugging in the USB
+    // cable to get the board into bootloader mode - definitely not fun when you're working on your QMK builds. Remove this and put it back to KC_RGUI
+    // if that's your preference.
+    //
+    // To put the keyboard in bootloader mode, use FN+backslash. If you accidentally put it into bootloader, you can just unplug the USB cable and
+    // it'll be back to normal when you plug it back in.
+    [0] = LAYOUT(
+        KC_ESC,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_PSCR,          KC_MUTE,
+        KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC,          KC_DEL,
+        KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,          KC_PGUP,
+        KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,          KC_ENT,           KC_PGDN,
+        KC_LSFT,          KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,          KC_RSFT, KC_UP,   KC_END,
+        KC_LCTL, KC_LALT, KC_LGUI,                            KC_SPC,                             KC_RCTL, KC_RALT,   MO(1), KC_LEFT, KC_DOWN, KC_RGHT
+    ),
+
+    [1] = LAYOUT(
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET,            RGB_MODE_FORWARD,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,          RGB_MODE_REVERSE,
+        _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, RGB_TOG,
+        _______, _______, _______,                            _______,                            _______, _______, _______, KC_MEDIA_PREV_TRACK, _______, KC_MEDIA_NEXT_TRACK
+    ),
+
+
+};
+
+
+bool encoder_update_user(uint8_t index, bool clockwise) {
+    if (clockwise) {
+      tap_code(KC_VOLU);
+    } else {
+      tap_code(KC_VOLD);
+    }
+    return true;
+}
diff --git a/keyboards/gmmk/pro/ansi/keymaps/alexmarmon/readme.md b/keyboards/gmmk/pro/ansi/keymaps/alexmarmon/readme.md
new file mode 100644
index 000000000..36ad42b1a
--- /dev/null
+++ b/keyboards/gmmk/pro/ansi/keymaps/alexmarmon/readme.md
@@ -0,0 +1,7 @@
+![Layout Image](https://i.imgur.com/MizMvsI.jpg)
+
+# Simple MacOS like keymap with RGB
+
+* Working basic RGB thanks to https://github.com/qmk/qmk_firmware/pull/13430
+* Restore working rotary knob volume control
+* Add media_previous and media_next to FN+left and FN+right
\ No newline at end of file
diff --git a/keyboards/gmmk/pro/keymaps/default/keymap.c b/keyboards/gmmk/pro/ansi/keymaps/default/keymap.c
index b08400cd8..b08400cd8 100644
--- a/keyboards/gmmk/pro/keymaps/default/keymap.c
+++ b/keyboards/gmmk/pro/ansi/keymaps/default/keymap.c
diff --git a/keyboards/gmmk/pro/keymaps/jonavin/config.h b/keyboards/gmmk/pro/ansi/keymaps/jonavin/config.h
index b77cb05f5..b77cb05f5 100644
--- a/keyboards/gmmk/pro/keymaps/jonavin/config.h
+++ b/keyboards/gmmk/pro/ansi/keymaps/jonavin/config.h
diff --git a/keyboards/gmmk/pro/keymaps/jonavin/keymap.c b/keyboards/gmmk/pro/ansi/keymaps/jonavin/keymap.c
index 8b3744957..8b3744957 100644
--- a/keyboards/gmmk/pro/keymaps/jonavin/keymap.c
+++ b/keyboards/gmmk/pro/ansi/keymaps/jonavin/keymap.c
diff --git a/keyboards/gmmk/pro/keymaps/jonavin/readme.md b/keyboards/gmmk/pro/ansi/keymaps/jonavin/readme.md
index f4f3401ab..f4f3401ab 100644
--- a/keyboards/gmmk/pro/keymaps/jonavin/readme.md
+++ b/keyboards/gmmk/pro/ansi/keymaps/jonavin/readme.md
diff --git a/keyboards/gmmk/pro/keymaps/jonavin/rgb_matrix_map.h b/keyboards/gmmk/pro/ansi/keymaps/jonavin/rgb_matrix_map.h
index 1ee538890..1ee538890 100644
--- a/keyboards/gmmk/pro/keymaps/jonavin/rgb_matrix_map.h
+++ b/keyboards/gmmk/pro/ansi/keymaps/jonavin/rgb_matrix_map.h
diff --git a/keyboards/gmmk/pro/keymaps/jonavin/rules.mk b/keyboards/gmmk/pro/ansi/keymaps/jonavin/rules.mk
index f4f3d4939..f4f3d4939 100644
--- a/keyboards/gmmk/pro/keymaps/jonavin/rules.mk
+++ b/keyboards/gmmk/pro/ansi/keymaps/jonavin/rules.mk
diff --git a/keyboards/gmmk/pro/keymaps/via/keymap.c b/keyboards/gmmk/pro/ansi/keymaps/via/keymap.c
index 940cc1c1f..940cc1c1f 100644
--- a/keyboards/gmmk/pro/keymaps/via/keymap.c
+++ b/keyboards/gmmk/pro/ansi/keymaps/via/keymap.c
diff --git a/keyboards/gmmk/pro/keymaps/via/rules.mk b/keyboards/gmmk/pro/ansi/keymaps/via/rules.mk
index 1e5b99807..1e5b99807 100644
--- a/keyboards/gmmk/pro/keymaps/via/rules.mk
+++ b/keyboards/gmmk/pro/ansi/keymaps/via/rules.mk
diff --git a/keyboards/gmmk/pro/keymaps/wholesomeducky/keymap.c b/keyboards/gmmk/pro/ansi/keymaps/wholesomeducky/keymap.c
index fded53256..fded53256 100644
--- a/keyboards/gmmk/pro/keymaps/wholesomeducky/keymap.c
+++ b/keyboards/gmmk/pro/ansi/keymaps/wholesomeducky/keymap.c
diff --git a/keyboards/gmmk/pro/keymaps/willwm/keymap.c b/keyboards/gmmk/pro/ansi/keymaps/willwm/keymap.c
index a17f79331..a32fef104 100644
--- a/keyboards/gmmk/pro/keymaps/willwm/keymap.c
+++ b/keyboards/gmmk/pro/ansi/keymaps/willwm/keymap.c
@@ -16,16 +16,15 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include QMK_KEYBOARD_H
 
+// clang-format off
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
-//      ESC      F1       F2       F3       F4       F5       F6       F7       F8       F9       F10      F11      F12      Del           Rotary(Mute)
-//      ~        1        2        3        4        5        6        7        8        9        0         -       (=)      BackSpc           Home
-//      Tab      Q        W        E        R        T        Y        U        I        O        P        [        ]        \                 PgUp
-//      Caps     A        S        D        F        G        H        J        K        L        ;        "                 Enter             PgDn
-//      Sh_L              Z        X        C        V        B        N        M        ,        .        ?                 Sh_R     Up       End
-//      Ct_L     Win_L    Alt_L                               SPACE                               Alt_R    FN       Ct_R     Left     Down     Right
-
-
+    //      ESC      F1       F2       F3       F4       F5       F6       F7       F8       F9       F10      F11      F12          Del           Rotary(Mute)
+    //      ~        1        2        3        4        5        6        7        8        9        0         -       (=)          BackSpc           Home
+    //      Tab      Q        W        E        R        T        Y        U        I        O        P        [        ]        \                 PgUp
+    //      Caps     A        S        D        F        G        H        J        K        L        ;        "                 Enter             PgDn
+    //      Sh_L              Z        X        C        V        B        N        M        ,        .        ?                 Sh_R     Up       End
+    //      Ct_L     Win_L    Alt_L                               SPACE                               Alt_R    FN       Ct_R     Left     Down     Right
     [0] = LAYOUT(
         KC_ESC,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_DEL,           KC_MUTE,
         KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC,          KC_HOME,
@@ -61,14 +60,14 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
         _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______,
         _______, _______, _______,                            _______,                            _______, _______, _______, _______, _______, _______
     ),
-
 };
+// clang-format on
 
-
-void encoder_update_user(uint8_t index, bool clockwise) {
+bool encoder_update_user(uint8_t index, bool clockwise) {
     if (clockwise) {
-      tap_code(KC_VOLU);
+        tap_code(KC_VOLU);
     } else {
-      tap_code(KC_VOLD);
+        tap_code(KC_VOLD);
     }
+    return true;
 }
diff --git a/keyboards/gmmk/pro/keymaps/willwm/keymap.json b/keyboards/gmmk/pro/ansi/keymaps/willwm/keymap.json
index d2325d2c1..d2325d2c1 100644
--- a/keyboards/gmmk/pro/keymaps/willwm/keymap.json
+++ b/keyboards/gmmk/pro/ansi/keymaps/willwm/keymap.json
diff --git a/keyboards/gmmk/pro/keymaps/willwm/readme.md b/keyboards/gmmk/pro/ansi/keymaps/willwm/readme.md
index 1c169faac..1c169faac 100644
--- a/keyboards/gmmk/pro/keymaps/willwm/readme.md
+++ b/keyboards/gmmk/pro/ansi/keymaps/willwm/readme.md
diff --git a/keyboards/gmmk/pro/keymaps/willwm/rules.mk b/keyboards/gmmk/pro/ansi/keymaps/willwm/rules.mk
index 511b50e19..511b50e19 100644
--- a/keyboards/gmmk/pro/keymaps/willwm/rules.mk
+++ b/keyboards/gmmk/pro/ansi/keymaps/willwm/rules.mk
diff --git a/keyboards/gmmk/pro/readme.md b/keyboards/gmmk/pro/ansi/readme.md
index e291179c9..9800aef88 100644
--- a/keyboards/gmmk/pro/readme.md
+++ b/keyboards/gmmk/pro/ansi/readme.md
@@ -1,6 +1,6 @@
-# GMMK PRO
+# GMMK PRO (ANSI)
 
-A tenkeyless 75%  keyboard made and sold by Glorious LLC. Equipped with the STM32 ARM Cortex-M4 microcontroller, with support for rotary encoders and three additional layouts. [More info at Glorious](https://www.pcgamingrace.com/products/glorious-gmmk-pro-75-barebone-black-reservation)
+A tenkeyless 75% keyboard made and sold by Glorious LLC. Equipped with the STM32 ARM Cortex-M4 microcontroller, with support for rotary encoders and three additional layouts. [More info at Glorious](https://www.pcgamingrace.com/products/glorious-gmmk-pro-75-barebone-black-reservation)
 
 * Keyboard Maintainer: [GloriousThrall](https://github.com/GloriousThrall)
 * Hardware Supported: GMMK Pro
@@ -8,11 +8,11 @@ A tenkeyless 75%  keyboard made and sold by Glorious LLC. Equipped with the STM3
 
 Make example for this keyboard (after setting up your build environment):
 
-    make gmmk/pro:default
+    make gmmk/pro/ansi:default
 
 Flashing example for this keyboard:
 
-    make gmmk/pro:default:flash
+    make gmmk/pro/ansi:default:flash
 
 To reset the board into bootloader mode, do one of the following:
 
diff --git a/keyboards/gmmk/pro/rules.mk b/keyboards/gmmk/pro/ansi/rules.mk
index b12d055a3..6221d6408 100644
--- a/keyboards/gmmk/pro/rules.mk
+++ b/keyboards/gmmk/pro/ansi/rules.mk
@@ -21,3 +21,5 @@ RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
 BLUETOOTH_ENABLE = no       # Enable Bluetooth
 AUDIO_ENABLE = no           # Audio output
 ENCODER_ENABLE = yes
+RGB_MATRIX_ENABLE = yes
+RGB_MATRIX_DRIVER = AW20216
diff --git a/keyboards/gmmk/pro/config.h b/keyboards/gmmk/pro/config.h
index 7f3977c10..1934ab780 100644
--- a/keyboards/gmmk/pro/config.h
+++ b/keyboards/gmmk/pro/config.h
@@ -19,18 +19,20 @@
 #include "config_common.h"
 
 /* USB Device descriptor parameter */
-#define DEVICE_VER      0x0001
-#define VENDOR_ID       0x320F
-#define PRODUCT_ID      0x5044
-#define MANUFACTURER    Glorious
-#define PRODUCT         GMMK Pro
+#define DEVICE_VER 0x0001
+#define VENDOR_ID 0x320F
+#define PRODUCT_ID 0x5044
+#define MANUFACTURER Glorious
+#define PRODUCT GMMK Pro
 
 /* key matrix size */
 #define MATRIX_ROWS 11
 #define MATRIX_COLS 8
 
-#define MATRIX_ROW_PINS  { B0, B1, B2, B3, B4, B5, B6, B7, B8, B9, B10 }
-#define MATRIX_COL_PINS  { A0, A1, A2, A3, A4, A8, A9, A10 }
+#define MATRIX_ROW_PINS \
+    { B0, B1, B2, B3, B4, B5, B6, B7, B8, B9, B10 }
+#define MATRIX_COL_PINS \
+    { A0, A1, A2, A3, A4, A8, A9, A10 }
 
 /* COL2ROW or ROW2COL */
 #define DIODE_DIRECTION COL2ROW
@@ -39,14 +41,29 @@
 #define BOOTMAGIC_LITE_COLUMN 3
 
 #define TAP_CODE_DELAY 10
-#define ENCODERS_PAD_A { C15 }
-#define ENCODERS_PAD_B { C14 }
+#define ENCODERS_PAD_A \
+    { C15 }
+#define ENCODERS_PAD_B \
+    { C14 }
 
 /* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
 #define LOCKING_SUPPORT_ENABLE
 /* Locking resynchronize hack */
 #define LOCKING_RESYNC_ENABLE
 
+/* SPI Config for LED Driver */
+#define SPI_DRIVER SPID1
+#define SPI_SCK_PIN A5
+#define SPI_MOSI_PIN A6
+#define SPI_MISO_PIN A7
+
+#define DRIVER_1_CS B13
+#define DRIVER_2_CS B14
+#define DRIVER_1_EN C13
+#define DRIVER_2_EN C13
+
+#define DRIVER_COUNT 2
+
 /* 1000Hz USB polling - it's the default on stock firmware */
 #define USB_POLLING_INTERVAL_MS 1
 
diff --git a/keyboards/gmmk/pro/halconf.h b/keyboards/gmmk/pro/halconf.h
new file mode 100644
index 000000000..23ecb202a
--- /dev/null
+++ b/keyboards/gmmk/pro/halconf.h
@@ -0,0 +1,7 @@
+#pragma once
+
+#define HAL_USE_SPI TRUE
+#define SPI_USE_WAIT TRUE
+#define SPI_SELECT_MODE SPI_SELECT_MODE_PAD
+
+#include_next <halconf.h>
diff --git a/keyboards/gmmk/pro/iso/config.h b/keyboards/gmmk/pro/iso/config.h
new file mode 100644
index 000000000..26626ccfc
--- /dev/null
+++ b/keyboards/gmmk/pro/iso/config.h
@@ -0,0 +1,23 @@
+/* Copyright 2021 Jasper Chan
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "config_common.h"
+
+#define DRIVER_1_LED_TOTAL 66
+#define DRIVER_2_LED_TOTAL 33
+#define DRIVER_LED_TOTAL (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)
diff --git a/keyboards/gmmk/pro/info.json b/keyboards/gmmk/pro/iso/info.json
index 427e562e3..2d4a22c9a 100644
--- a/keyboards/gmmk/pro/info.json
+++ b/keyboards/gmmk/pro/iso/info.json
@@ -1,5 +1,5 @@
 {
-    "keyboard_name": "GMMK Pro",
+    "keyboard_name": "GMMK Pro (ISO)",
     "url": "https://www.pcgamingrace.com/products/glorious-gmmk-pro-75-barebone-black-reservation",
     "maintainer": "GloriousThrall",
     "width": 16.5,
@@ -7,108 +7,6 @@
     "layouts": {
         "LAYOUT": {
             "layout": [
-                {"x":0, "y":0},
-
-                {"x":1.25, "y":0},
-                {"x":2.25, "y":0},
-                {"x":3.25, "y":0},
-                {"x":4.25, "y":0},
-
-                {"x":5.5, "y":0},
-                {"x":6.5, "y":0},
-                {"x":7.5, "y":0},
-                {"x":8.5, "y":0},
-
-                {"x":9.75, "y":0},
-                {"x":10.75, "y":0},
-                {"x":11.75, "y":0},
-                {"x":12.75, "y":0},
-
-                {"x":14, "y":0},
-                {"x":15.5, "y":0},
-
-                {"x":0, "y":1.25},
-                {"x":1, "y":1.25},
-                {"x":2, "y":1.25},
-                {"x":3, "y":1.25},
-                {"x":4, "y":1.25},
-                {"x":5, "y":1.25},
-                {"x":6, "y":1.25},
-                {"x":7, "y":1.25},
-                {"x":8, "y":1.25},
-                {"x":9, "y":1.25},
-                {"x":10, "y":1.25},
-                {"x":11, "y":1.25},
-                {"x":12, "y":1.25},
-                {"x":13, "y":1.25, "w":2},
-
-                {"x":15.5, "y":1.25},
-
-                {"x":0, "y":2.25, "w":1.5},
-                {"x":1.5, "y":2.25},
-                {"x":2.5, "y":2.25},
-                {"x":3.5, "y":2.25},
-                {"x":4.5, "y":2.25},
-                {"x":5.5, "y":2.25},
-                {"x":6.5, "y":2.25},
-                {"x":7.5, "y":2.25},
-                {"x":8.5, "y":2.25},
-                {"x":9.5, "y":2.25},
-                {"x":10.5, "y":2.25},
-                {"x":11.5, "y":2.25},
-                {"x":12.5, "y":2.25},
-                {"x":13.5, "y":2.25, "w":1.5},
-
-                {"x":15.5, "y":2.25},
-
-                {"x":0, "y":3.25, "w":1.75},
-                {"x":1.75, "y":3.25},
-                {"x":2.75, "y":3.25},
-                {"x":3.75, "y":3.25},
-                {"x":4.75, "y":3.25},
-                {"x":5.75, "y":3.25},
-                {"x":6.75, "y":3.25},
-                {"x":7.75, "y":3.25},
-                {"x":8.75, "y":3.25},
-                {"x":9.75, "y":3.25},
-                {"x":10.75, "y":3.25},
-                {"x":11.75, "y":3.25},
-                {"x":12.75, "y":3.25, "w":2.25},
-
-                {"x":15.5, "y":3.25},
-
-                {"x":0, "y":4.25, "w":2.25},
-                {"x":2.25, "y":4.25},
-                {"x":3.25, "y":4.25},
-                {"x":4.25, "y":4.25},
-                {"x":5.25, "y":4.25},
-                {"x":6.25, "y":4.25},
-                {"x":7.25, "y":4.25},
-                {"x":8.25, "y":4.25},
-                {"x":9.25, "y":4.25},
-                {"x":10.25, "y":4.25},
-                {"x":11.25, "y":4.25},
-                {"x":12.25, "y":4.25, "w":1.75},
-
-                {"x":14.25, "y":4.5},
-
-                {"x":15.5, "y":4.25},
-
-                {"x":0, "y":5.25, "w":1.25},
-                {"x":1.25, "y":5.25, "w":1.25},
-                {"x":2.5, "y":5.25, "w":1.25},
-                {"x":3.75, "y":5.25, "w":6.25},
-                {"x":10, "y":5.25},
-                {"x":11, "y":5.25},
-                {"x":12, "y":5.25},
-
-                {"x":13.25, "y":5.5},
-                {"x":14.25, "y":5.5},
-                {"x":15.25, "y":5.5}
-            ]
-        },
-        "LAYOUT_iso": {
-            "layout": [
                 {"label":"Esc", "x":0, "y":0},
 
                 {"label":"F1", "x":1.25, "y":0},
diff --git a/keyboards/gmmk/pro/iso/iso.c b/keyboards/gmmk/pro/iso/iso.c
new file mode 100644
index 000000000..fa57f1ca9
--- /dev/null
+++ b/keyboards/gmmk/pro/iso/iso.c
@@ -0,0 +1,243 @@
+/* Copyright 2021 Gigahawk
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "iso.h"
+
+#ifdef RGB_MATRIX_ENABLE
+// clang-format off
+led_config_t g_led_config = {{
+    { 4,      NO_LED, NO_LED, 96, 65, 80, 5,      28 },
+    { 8,      2,      9,      0,  10, 76, 1,      7  },
+    { 14,     3,      15,     67, 16, 87, 6,      13 },
+    { 20,     18,     21,     23, 22, 94, 12,     19 },
+    { 25,     30,     26,     31, 27, 32, 29,     24 },
+    { 41,     36,     42,     37, 43, 38, 35,     40 },
+    { 46,     90,     47,     34, 48, 73, 79,     45 },
+    { 52,     39,     53,     98, 54, 83, 44,     51 },
+    { 58,     63,     59,     64, 95, 60, 62,     57 },
+    { 11,     91,     55,     17, 33, 49, NO_LED, 70 },
+    { NO_LED, 86,     NO_LED, 61, 97, 66, 50,     56 }
+}, {
+    {0, 0},     // 0, ESC, k13
+    {0, 15},    // 1, `, k16
+    {4, 26},    // 2, Tab, k11
+    {5, 38},    // 3, Caps, k21
+    {2, 49},    // 4, Sh_L, k00
+    {2, 61},    // 5, Ct_L, k06
+    {18, 0},    // 6, F1, k26
+    {14, 15},   // 7, 1, k17
+    {22, 26},   // 8, Q, k10
+    {25, 38},   // 9, A, k12
+    {33, 49},   // 10, Z, k14
+    {20, 61},   // 11, Win_L, k90
+    {33, 0},    // 12, F2, k36
+    {29, 15},   // 13, 2, k27
+    {36, 26},   // 14, W, k20
+    {40, 38},   // 15, S, k22
+    {47, 49},   // 16, X, k24
+    {38, 61},   // 17, Alt_L, k93
+    {47, 0},    // 18, F3, k31
+    {43, 15},   // 19, 3, k37
+    {51, 26},   // 20, E, k30
+    {54, 38},   // 21, D, k32
+    {61, 49},   // 22, C, k34
+    {61, 0},    // 23, F4, k33
+    {58, 15},   // 24, 4, k47
+    {65, 26},   // 25, R, k40
+    {69, 38},   // 26, F, k42
+    {76, 49},   // 27, V, k44
+    {79, 0},    // 28, F5, k07
+    {72, 15},   // 29, 5, k46
+    {79, 26},   // 30, T, k41
+    {83, 38},   // 31, G, k43
+    {90, 49},   // 32, B, k45
+    {92, 61},   // 33, SPACE, k94
+    {94, 0},    // 34, F6, k63
+    {87, 15},   // 35, 6, k56
+    {94, 26},   // 36, Y, k51
+    {98, 38},   // 37, H, k53
+    {105, 49},  // 38, N, k55
+    {108, 0},   // 39, F7, k71
+    {101, 15},  // 40, 7, k57
+    {108, 26},  // 41, U, k50
+    {112, 38},  // 42, J, k52
+    {119, 49},  // 43, M, k54
+    {123, 0},   // 44, F8, k76
+    {116, 15},  // 45, 8, k67
+    {123, 26},  // 46, I, k60
+    {126, 38},  // 47, K, k62
+    {134, 49},  // 48, ,, k64
+    {145, 61},  // 49, Alt_R, k95
+    {141, 0},   // 50, F9, ka6
+    {130, 15},  // 51, 9, k77
+    {137, 26},  // 52, O, k70
+    {141, 38},  // 53, L, k72
+    {148, 49},  // 54, ., k74
+    {159, 61},  // 55, FN, k92
+    {155, 0},   // 56, F10, ka7
+    {145, 15},  // 57, 0, k87
+    {152, 26},  // 58, P, k80
+    {155, 38},  // 59, ;, k82
+    {163, 49},  // 60, /, k85
+    {170, 0},   // 61, F11, ka3
+    {159, 15},  // 62, -, k86
+    {166, 26},  // 63, [, k81
+    {170, 38},  // 64, ", k83
+    {173, 61},  // 65, Ct_R, k04
+    {184, 0},   // 66, F12, ka5
+    {18, 49},   // 67, \, k23
+    {0, 8},     // 68, LED, l01
+    {224, 8},   // 69, LED, l11
+    {202, 0},   // 70, Prt, k97
+    {0, 15},    // 71, LED, l02
+    {224, 15},  // 72, LED, l12
+    {224, 15},  // 73, Del, k65
+    {0, 21},    // 74, LED, l03
+    {224, 21},  // 75, LED, l13
+    {224, 26},  // 76, PgUp, k15
+    {0, 28},    // 77, LED, l04
+    {224, 28},  // 78, LED, l14
+    {173, 15},  // 79, =, k66
+    {220, 64},  // 80, Right, k05
+    {0, 35},    // 81, LED, l05
+    {224, 35},  // 82, LED, l15
+    {224, 49},  // 83, End, k75
+    {0, 42},    // 84, LED, l06
+    {224, 42},  // 85, LED, l16
+    {195, 15},  // 86, BSpc, ka1
+    {224, 38},  // 87, PgDn, k25
+    {0, 48},    // 88, LED, l07
+    {224, 48},  // 89, LED, l17
+    {181, 26},  // 90, ], k61
+    {182, 49},  // 91, Sh_R, k91
+    {0, 55},    // 92, LED, l08
+    {224, 55},  // 93, LED, l18
+    {206, 52},  // 94, Up, k35
+    {184, 38},  // 95, #, k84
+    {191, 64},  // 96, Left, k03
+    {201, 26},  // 97, Enter, ka4
+    {206, 64},  // 98, Down, k73
+}, {
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 4, 2, 2, 4, 2,
+    2, 4, 2, 2, 4, 4, 2, 2, 4, 2, 2, 4, 4, 2, 2, 4, 4, 2, 2, 4, 4, 4, 4, 4
+}};
+
+const aw_led g_aw_leds[DRIVER_LED_TOTAL] = {
+    {0, CS1_SW1, CS2_SW1, CS3_SW1},        //  0, ESC, k13
+    {0, CS4_SW1, CS5_SW1, CS6_SW1},        //  1, ~, k16
+    {0, CS7_SW1, CS8_SW1, CS9_SW1},        //  2, Tab, k11
+    {0, CS10_SW1, CS11_SW1, CS12_SW1},     //  3, Caps, k21
+    {0, CS13_SW1, CS14_SW1, CS15_SW1},     //  4, Sh_L, k00
+    {0, CS16_SW1, CS17_SW1, CS18_SW1},     //  5, Ct_L, k06
+    {0, CS1_SW2, CS2_SW2, CS3_SW2},        //  6, F1, k26
+    {0, CS4_SW2, CS5_SW2, CS6_SW2},        //  7, 1, k17
+    {0, CS7_SW2, CS8_SW2, CS9_SW2},        //  8, Q, k10
+    {0, CS10_SW2, CS11_SW2, CS12_SW2},     //  9, A, k12
+    {0, CS13_SW2, CS14_SW2, CS15_SW2},     //  10, Z, k14
+    {0, CS16_SW2, CS17_SW2, CS18_SW2},     //  11, Win_L, k90
+    {0, CS1_SW3, CS2_SW3, CS3_SW3},        //  12, F2, k36
+    {0, CS4_SW3, CS5_SW3, CS6_SW3},        //  13, 2, k27
+    {0, CS7_SW3, CS8_SW3, CS9_SW3},        //  14, W, k20
+    {0, CS10_SW3, CS11_SW3, CS12_SW3},     //  15, S, k22
+    {0, CS13_SW3, CS14_SW3, CS15_SW3},     //  16, X, k24
+    {0, CS16_SW3, CS17_SW3, CS18_SW3},     //  17, Alt_L, k93
+    {0, CS1_SW4, CS2_SW4, CS3_SW4},        //  18, F3, k31
+    {0, CS4_SW4, CS5_SW4, CS6_SW4},        //  19, 3, k37
+    {0, CS7_SW4, CS8_SW4, CS9_SW4},        //  20, E, k30
+    {0, CS10_SW4, CS11_SW4, CS12_SW4},     //  21, D, k32
+    {0, CS13_SW4, CS14_SW4, CS15_SW4},     //  22, C, k34
+    {0, CS1_SW5, CS2_SW5, CS3_SW5},        //  23, F4, k33
+    {0, CS4_SW5, CS5_SW5, CS6_SW5},        //  24, 4, k47
+    {0, CS7_SW5, CS8_SW5, CS9_SW5},        //  25, R, k40
+    {0, CS10_SW5, CS11_SW5, CS12_SW5},     //  26, F, k42
+    {0, CS13_SW5, CS14_SW5, CS15_SW5},     //  27, V, k44
+    {0, CS1_SW6, CS2_SW6, CS3_SW6},        //  28, F5, k07
+    {0, CS4_SW6, CS5_SW6, CS6_SW6},        //  29, 5, k46
+    {0, CS7_SW6, CS8_SW6, CS9_SW6},        //  30, T, k41
+    {0, CS10_SW6, CS11_SW6, CS12_SW6},     //  31, G, k43
+    {0, CS13_SW6, CS14_SW6, CS15_SW6},     //  32, B, k45
+    {0, CS16_SW6, CS17_SW6, CS18_SW6},     //  33, SPACE, k94
+    {0, CS1_SW7, CS2_SW7, CS3_SW7},        //  34, F6, k63
+    {0, CS4_SW7, CS5_SW7, CS6_SW7},        //  35, 6, k56
+    {0, CS7_SW7, CS8_SW7, CS9_SW7},        //  36, Y, k51
+    {0, CS10_SW7, CS11_SW7, CS12_SW7},     //  37, H, k53
+    {0, CS13_SW7, CS14_SW7, CS15_SW7},     //  38, N, k55
+    {0, CS1_SW8, CS2_SW8, CS3_SW8},        //  39, F7, k71
+    {0, CS4_SW8, CS5_SW8, CS6_SW8},        //  40, 7, k57
+    {0, CS7_SW8, CS8_SW8, CS9_SW8},        //  41, U, k50
+    {0, CS10_SW8, CS11_SW8, CS12_SW8},     //  42, J, k52
+    {0, CS13_SW8, CS14_SW8, CS15_SW8},     //  43, M, k54
+    {0, CS1_SW9, CS2_SW9, CS3_SW9},        //  44, F8, k76
+    {0, CS4_SW9, CS5_SW9, CS6_SW9},        //  45, 8, k67
+    {0, CS7_SW9, CS8_SW9, CS9_SW9},        //  46, I, k60
+    {0, CS10_SW9, CS11_SW9, CS12_SW9},     //  47, K, k62
+    {0, CS13_SW9, CS14_SW9, CS15_SW9},     //  48, ,, k64
+    {0, CS16_SW9, CS17_SW9, CS18_SW9},     //  49, Alt_R, k95
+    {0, CS1_SW10, CS2_SW10, CS3_SW10},     //  50, F9, ka6
+    {0, CS4_SW10, CS5_SW10, CS6_SW10},     //  51, 9, k77
+    {0, CS7_SW10, CS8_SW10, CS9_SW10},     //  52, O, k70
+    {0, CS10_SW10, CS11_SW10, CS12_SW10},  //  53, L, k72
+    {0, CS13_SW10, CS14_SW10, CS15_SW10},  //  54, ., k74
+    {0, CS16_SW10, CS17_SW10, CS18_SW10},  //  55, FN, k92
+    {0, CS1_SW11, CS2_SW11, CS3_SW11},     //  56, F10, ka7
+    {0, CS4_SW11, CS5_SW11, CS6_SW11},     //  57, 0, k87
+    {0, CS7_SW11, CS8_SW11, CS9_SW11},     //  58, P, k80
+    {0, CS10_SW11, CS11_SW11, CS12_SW11},  //  59, ;, k82
+    {0, CS13_SW11, CS14_SW11, CS15_SW11},  //  60, ?, k85
+    {0, CS1_SW12, CS2_SW12, CS3_SW12},     //  61, F11, ka3
+    {0, CS4_SW12, CS5_SW12, CS6_SW12},     //  62, -, k86
+    {0, CS7_SW12, CS8_SW12, CS9_SW12},     //  63, [, k81
+    {0, CS10_SW12, CS11_SW12, CS12_SW12},  //  64, ", k83
+    {0, CS16_SW12, CS17_SW12, CS18_SW12},  //  65, Ct_R, k04
+
+    {1, CS1_SW1, CS2_SW1, CS3_SW1},     //  66, F12, ka5
+    {1, CS4_SW1, CS5_SW1, CS6_SW1},     //  67, \, k23
+    {1, CS13_SW1, CS14_SW1, CS15_SW1},  //  68, LED, l01
+    {1, CS16_SW1, CS17_SW1, CS18_SW1},  //  69, LED, l11
+    {1, CS4_SW2, CS5_SW2, CS6_SW2},     //  70, Prt, k97
+    {1, CS13_SW2, CS14_SW2, CS15_SW2},  //  71, LED, l02
+    {1, CS16_SW2, CS17_SW2, CS18_SW2},  //  72, LED, l12
+    {1, CS4_SW3, CS5_SW3, CS6_SW3},     //  73, Del, k65
+    {1, CS13_SW3, CS14_SW3, CS15_SW3},  //  74, LED, l03
+    {1, CS16_SW3, CS17_SW3, CS18_SW3},  //  75, LED, l13
+    {1, CS4_SW4, CS5_SW4, CS6_SW4},     //  76, PgUp, k15
+    {1, CS13_SW4, CS14_SW4, CS15_SW4},  //  77, LED, l04
+    {1, CS16_SW4, CS17_SW4, CS18_SW4},  //  78, LED, l14
+    {1, CS1_SW5, CS2_SW5, CS3_SW5},     //  79, =, k66
+    {1, CS10_SW5, CS11_SW5, CS12_SW5},  //  80, Right, k05
+    {1, CS13_SW5, CS14_SW5, CS15_SW5},  //  81, LED, l05
+    {1, CS16_SW5, CS17_SW5, CS18_SW5},  //  82, LED, l15
+    {1, CS4_SW6, CS5_SW6, CS6_SW6},     //  83, End, k75
+    {1, CS13_SW6, CS14_SW6, CS15_SW6},  //  84, LED, l06
+    {1, CS16_SW6, CS17_SW6, CS18_SW6},  //  85, LED, l16
+    {1, CS1_SW7, CS2_SW7, CS3_SW7},     //  86, BSpc, ka1
+    {1, CS4_SW7, CS5_SW7, CS6_SW7},     //  87, PgDn, k25
+    {1, CS13_SW7, CS14_SW7, CS15_SW7},  //  88, LED, l07
+    {1, CS16_SW7, CS17_SW7, CS18_SW7},  //  89, LED, l17
+    {1, CS1_SW8, CS2_SW8, CS3_SW8},     //  90, ], k61
+    {1, CS4_SW8, CS5_SW8, CS6_SW8},     //  91, Sh_R, k91
+    {1, CS13_SW8, CS14_SW8, CS15_SW8},  //  92, LED, l08
+    {1, CS16_SW8, CS17_SW8, CS18_SW8},  //  93, LED, l18
+    {1, CS4_SW9, CS5_SW9, CS6_SW9},     //  94, Up, k35
+    {1, CS1_SW10, CS2_SW10, CS3_SW10},  //  95, #, k84
+    {1, CS4_SW10, CS5_SW10, CS6_SW10},  //  96, Left, k03
+    {1, CS1_SW11, CS2_SW11, CS3_SW11},  //  97, Enter, ka4
+    {1, CS4_SW11, CS5_SW11, CS6_SW11},  //  98, Down, k73
+};
+// clang-format on
+#endif
diff --git a/keyboards/gmmk/pro/iso/iso.h b/keyboards/gmmk/pro/iso/iso.h
new file mode 100644
index 000000000..353bcbe87
--- /dev/null
+++ b/keyboards/gmmk/pro/iso/iso.h
@@ -0,0 +1,52 @@
+/* Copyright 2021 Gigahawk
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "pro.h"
+
+#define ___ KC_NO
+
+//  ESC  F1   F2   F3   F4   F5   F6   F7   F8   F9   F10  F11  F12  Prt      Rotary(Mute)
+//  `    1    2    3    4    5    6    7    8    9    0    -    =    BSpc     Del
+//  Tab  Q    W    E    R    T    Y    U    I    O    P    [    ]             PgUp
+//  Caps A    S    D    F    G    H    J    K    L    ;    '    #    Enter    PgDn
+//  Sh_L \    Z    X    C    V    B    N    M    ,    .    /    Sh_R     Up   End
+//  Ct_L    Win_L   Alt_L      SPACE          Alt_R   FN   Ct_R     Left Down Right
+
+// clang-format off
+#define LAYOUT( \
+    k13, k26, k36, k31, k33, k07, k63, k71, k76, ka6, ka7, ka3, ka5, k97,     k01, \
+    k16, k17, k27, k37, k47, k46, k56, k57, k67, k77, k87, k86, k66, ka1,     k65, \
+    k11, k10, k20, k30, k40, k41, k51, k50, k60, k70, k80, k81, k61,          k15, \
+    k21, k12, k22, k32, k42, k43, k53, k52, k62, k72, k82, k83, k84, ka4,     k25, \
+    k00, k23, k14, k24, k34, k44, k45, k55, k54, k64, k74, k85, k91,     k35, k75, \
+    k06,    k90,    k93,       k94,           k95,    k92, k04,     k03, k73, k05  \
+) \
+{ \
+    { k00, k01, ___, k03, k04, k05, k06, k07}, \
+    { k10, k11, k12, k13, k14, k15, k16, k17}, \
+    { k20, k21, k22, k23, k24, k25, k26, k27}, \
+    { k30, k31, k32, k33, k34, k35, k36, k37}, \
+    { k40, k41, k42, k43, k44, k45, k46, k47}, \
+    { k50, k51, k52, k53, k54, k55, k56, k57}, \
+    { k60, k61, k62, k63, k64, k65, k66, k67}, \
+    { k70, k71, k72, k73, k74, k75, k76, k77}, \
+    { k80, k81, k82, k83, k84, k85, k86, k87}, \
+    { k90, k91, k92, k93, k94, k95, ___, k97}, \
+    { ___, ka1, ___, ka3, ka4, ka5, ka6, ka7}  \
+}
+// clang-format on
diff --git a/keyboards/gmmk/pro/keymaps/iso/keymap.c b/keyboards/gmmk/pro/iso/keymaps/default/keymap.c
index 402becbe6..95b0f0b83 100644
--- a/keyboards/gmmk/pro/keymaps/iso/keymap.c
+++ b/keyboards/gmmk/pro/iso/keymaps/default/keymap.c
@@ -33,7 +33,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     //
     // To put the keyboard in bootloader mode, use FN+backspace. If you accidentally put it into bootloader, you can just unplug the USB cable and
     // it'll be back to normal when you plug it back in.
-    [0] = LAYOUT_iso(
+    [0] = LAYOUT(
         KC_ESC,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_PSCR,          KC_MUTE,
         KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC,          KC_DEL,
         KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC,                   KC_PGUP,
@@ -42,7 +42,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
         KC_LCTL, KC_LGUI, KC_LALT,                            KC_SPC,                             KC_RALT, MO(1),   KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
     ),
 
-    [1] = LAYOUT_iso(
+    [1] = LAYOUT(
         _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
         _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET,            _______,
         _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,                   _______,
diff --git a/keyboards/gmmk/pro/iso/keymaps/via/keymap.c b/keyboards/gmmk/pro/iso/keymaps/via/keymap.c
new file mode 100644
index 000000000..921627205
--- /dev/null
+++ b/keyboards/gmmk/pro/iso/keymaps/via/keymap.c
@@ -0,0 +1,85 @@
+/* Copyright 2021 Glorious, LLC <salman@pcgamingrace.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+
+// clang-format off
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+//      ESC      F1       F2       F3       F4       F5       F6       F7       F8       F9       F10      F11      F12      Prt           Rotary(Mute)
+//      ~        1        2        3        4        5        6        7        8        9        0         -       (=)      BackSpc           Del
+//      Tab      Q        W        E        R        T        Y        U        I        O        P        [        ]                          PgUp
+//      Caps     A        S        D        F        G        H        J        K        L        ;        "        #        Enter             PgDn
+//      Sh_L     /        Z        X        C        V        B        N        M        ,        .        ?                 Sh_R     Up       End
+//      Ct_L     Win_L    Alt_L                               SPACE                               Alt_R    FN       Ct_R     Left     Down     Right
+
+
+    // The FN key by default maps to a momentary toggle to layer 1 to provide access to the RESET key (to put the board into bootloader mode). Without
+    // this mapping, you have to open the case to hit the button on the bottom of the PCB (near the USB cable attachment) while plugging in the USB
+    // cable to get the board into bootloader mode - definitely not fun when you're working on your QMK builds. Remove this and put it back to KC_RGUI
+    // if that's your preference.
+    //
+    // To put the keyboard in bootloader mode, use FN+backspace. If you accidentally put it into bootloader, you can just unplug the USB cable and
+    // it'll be back to normal when you plug it back in.
+    [0] = LAYOUT(
+        KC_ESC,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_PSCR,          KC_MUTE,
+        KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC,          KC_DEL,
+        KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC,                   KC_PGUP,
+        KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, KC_NUHS, KC_ENT,           KC_PGDN,
+        KC_LSFT, KC_NUBS, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,          KC_RSFT, KC_UP,   KC_END,
+        KC_LCTL, KC_LGUI, KC_LALT,                            KC_SPC,                             KC_RALT, MO(1),   KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
+    ),
+
+    [1] = LAYOUT(
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET,            _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,                   _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______,
+        _______, _______, _______,                            _______,                            _______, _______, _______, _______, _______, _______
+    ),
+
+
+    [2] = LAYOUT(
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,                   _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______,
+        _______, _______, _______,                            _______,                            _______, _______, _______, _______, _______, _______
+    ),
+
+    [3] = LAYOUT(
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,                   _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______,
+        _______, _______, _______,                            _______,                            _______, _______, _______, _______, _______, _______
+    ),
+
+
+};
+// clang-format on
+
+bool encoder_update_user(uint8_t index, bool clockwise) {
+    if (clockwise) {
+        tap_code(KC_VOLU);
+    } else {
+        tap_code(KC_VOLD);
+    }
+    return true;
+}
diff --git a/keyboards/gmmk/pro/iso/keymaps/via/rules.mk b/keyboards/gmmk/pro/iso/keymaps/via/rules.mk
new file mode 100644
index 000000000..1e5b99807
--- /dev/null
+++ b/keyboards/gmmk/pro/iso/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
diff --git a/keyboards/gmmk/pro/iso/readme.md b/keyboards/gmmk/pro/iso/readme.md
new file mode 100644
index 000000000..3f255c490
--- /dev/null
+++ b/keyboards/gmmk/pro/iso/readme.md
@@ -0,0 +1,23 @@
+# GMMK PRO (ISO)
+
+A tenkeyless 75% keyboard made and sold by Glorious LLC. Equipped with the STM32 ARM Cortex-M4 microcontroller, with support for rotary encoders and three additional layouts. [More info at Glorious](https://www.pcgamingrace.com/products/glorious-gmmk-pro-75-barebone-black-reservation)
+
+* Keyboard Maintainer: [GloriousThrall](https://github.com/GloriousThrall)
+* Hardware Supported: GMMK Pro
+* Hardware Availability: [GloriousPCGaming.com](https://www.pcgamingrace.com/products/glorious-gmmk-pro-75-barebone-black-reservation)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make gmmk/pro/iso:default
+
+Flashing example for this keyboard:
+
+    make gmmk/pro/iso:default:flash
+
+To reset the board into bootloader mode, do one of the following:
+
+* Hold the Reset switch mounted on the bottom side of the PCB while connecting the USB cable
+* Hold the Escape key while connecting the USB cable (also erases persistent settings)
+* Fn+Backspace will reset the board to bootloader mode if you have flashed the default QMK keymap
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
diff --git a/keyboards/gmmk/pro/iso/rules.mk b/keyboards/gmmk/pro/iso/rules.mk
new file mode 100644
index 000000000..6221d6408
--- /dev/null
+++ b/keyboards/gmmk/pro/iso/rules.mk
@@ -0,0 +1,25 @@
+# MCU name
+MCU = STM32F303
+
+# Bootloader selection
+BOOTLOADER = stm32-dfu
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+BLUETOOTH_ENABLE = no       # Enable Bluetooth
+AUDIO_ENABLE = no           # Audio output
+ENCODER_ENABLE = yes
+RGB_MATRIX_ENABLE = yes
+RGB_MATRIX_DRIVER = AW20216
diff --git a/keyboards/gmmk/pro/mcuconf.h b/keyboards/gmmk/pro/mcuconf.h
new file mode 100644
index 000000000..bb1c0acde
--- /dev/null
+++ b/keyboards/gmmk/pro/mcuconf.h
@@ -0,0 +1,6 @@
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef STM32_SPI_USE_SPI1
+#define STM32_SPI_USE_SPI1 TRUE
diff --git a/keyboards/gmmk/pro/pro.h b/keyboards/gmmk/pro/pro.h
index 8295bb2f7..38dd4d78b 100644
--- a/keyboards/gmmk/pro/pro.h
+++ b/keyboards/gmmk/pro/pro.h
@@ -18,62 +18,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "quantum.h"
 
-#define ___ KC_NO
-
-//  ESC  F1   F2   F3   F4   F5   F6   F7   F8   F9   F10  F11  F12  Prt    Rotary(Mute)
-//  ~    1    2    3    4    5    6    7    8    9    0    -    (=)  BSpc     Del
-//  Tab  Q    W    E    R    T    Y    U    I    O    P    [    ]    \        PgUp
-//  Caps A    S    D    F    G    H    J    K    L    ;    "        Enter     PgDn
-//  Sh_L Z    X    C    V    B    N    M    ,    .    ?       Sh_R       Up   End
-//  Ct_L    Win_L   Alt_L      SPACE          Alt_R   FN   Ct_R     Left Down Right
-
-#define LAYOUT( \
-    k13, k26, k36, k31, k33, k07, k63, k71, k76, ka6, ka7, ka3, ka5, k97,     k01, \
-    k16, k17, k27, k37, k47, k46, k56, k57, k67, k77, k87, k86, k66, ka1,     k65, \
-    k11, k10, k20, k30, k40, k41, k51, k50, k60, k70, k80, k81, k61, ka2,     k15, \
-    k21, k12, k22, k32, k42, k43, k53, k52, k62, k72, k82, k83,     ka4,      k25, \
-    k00, k14, k24, k34, k44, k45, k55, k54, k64, k74, k85,    k91,       k35, k75, \
-    k06,    k90,    k93,       k94,          k95,     k92, k04,     k03, k73, k05  \
-) \
-{ \
-    { k00, k01, ___, k03, k04, k05, k06, k07}, \
-    { k10, k11, k12, k13, k14, k15, k16, k17}, \
-    { k20, k21, k22, ___, k24, k25, k26, k27}, \
-    { k30, k31, k32, k33, k34, k35, k36, k37}, \
-    { k40, k41, k42, k43, k44, k45, k46, k47}, \
-    { k50, k51, k52, k53, k54, k55, k56, k57}, \
-    { k60, k61, k62, k63, k64, k65, k66, k67}, \
-    { k70, k71, k72, k73, k74, k75, k76, k77}, \
-    { k80, k81, k82, k83, ___, k85, k86, k87}, \
-    { k90, k91, k92, k93, k94, k95, ___, k97}, \
-    { ___, ka1, ka2, ka3, ka4, ka5, ka6, ka7}  \
-}
-
-//  ESC  F1   F2   F3   F4   F5   F6   F7   F8   F9   F10  F11  F12  Prt    Rotary(Mute)
-//  ~    1    2    3    4    5    6    7    8    9    0    -    (=)  BSpc     Del
-//  Tab  Q    W    E    R    T    Y    U    I    O    P    [    ]             PgUp
-//  Caps A    S    D    F    G    H    J    K    L    ;    "    #    Enter    PgDn
-//  Sh_L /    Z    X    C    V    B    N    M    ,    .    ?  Sh_R       Up   End
-//  Ct_L    Win_L   Alt_L      SPACE          Alt_R   FN   Ct_R     Left Down Right
-
-#define LAYOUT_iso( \
-    k13, k26, k36, k31, k33, k07, k63, k71, k76, ka6, ka7, ka3, ka5, k97,     k01, \
-    k16, k17, k27, k37, k47, k46, k56, k57, k67, k77, k87, k86, k66, ka1,     k65, \
-    k11, k10, k20, k30, k40, k41, k51, k50, k60, k70, k80, k81, k61,          k15, \
-    k21, k12, k22, k32, k42, k43, k53, k52, k62, k72, k82, k83, k84, ka4,     k25, \
-    k00, k23, k14, k24, k34, k44, k45, k55, k54, k64, k74, k85,    k91,       k35, k75, \
-    k06,    k90,    k93,       k94,          k95,     k92, k04,     k03, k73, k05  \
-) \
-{ \
-    { k00, k01, ___, k03, k04, k05, k06, k07}, \
-    { k10, k11, k12, k13, k14, k15, k16, k17}, \
-    { k20, k21, k22, k23, k24, k25, k26, k27}, \
-    { k30, k31, k32, k33, k34, k35, k36, k37}, \
-    { k40, k41, k42, k43, k44, k45, k46, k47}, \
-    { k50, k51, k52, k53, k54, k55, k56, k57}, \
-    { k60, k61, k62, k63, k64, k65, k66, k67}, \
-    { k70, k71, k72, k73, k74, k75, k76, k77}, \
-    { k80, k81, k82, k83, k84, k85, k86, k87}, \
-    { k90, k91, k92, k93, k94, k95, ___, k97}, \
-    { ___, ka1, ___, ka3, ka4, ka5, ka6, ka7}  \
-}
+#if defined(KEYBOARD_gmmk_pro_ansi)
+#    include "ansi.h"
+#elif defined(KEYBOARD_gmmk_pro_iso)
+#    include "iso.h"
+#endif  // GMMK Pro revisions