diff --git a/keyboards/deltasplit75/deltasplit75.h b/keyboards/deltasplit75/deltasplit75.h
index 7ca898aa52..070dcc71b5 100644
--- a/keyboards/deltasplit75/deltasplit75.h
+++ b/keyboards/deltasplit75/deltasplit75.h
@@ -4,8 +4,8 @@
 #ifdef SUBPROJECT_v2
     #include "v2.h"
 #endif
-#ifdef SUBPROJECT_ProtoSplit
-    #include "ProtoSplit.h"
+#ifdef SUBPROJECT_protosplit
+    #include "protosplit.h"
 #endif
 
 #include "quantum.h"
diff --git a/keyboards/deltasplit75/keymaps/default/config.h b/keyboards/deltasplit75/keymaps/default/config.h
new file mode 100644
index 0000000000..c72c00e681
--- /dev/null
+++ b/keyboards/deltasplit75/keymaps/default/config.h
@@ -0,0 +1,31 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.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/>.
+*/
+
+
+#define USE_SERIAL
+
+#define MASTER_LEFT
+// #define _MASTER_RIGHT
+// #define EE_HANDS
+
+
+#ifdef SUBPROJECT_v2
+    #include "../../v2/config.h"
+#endif
+#ifdef SUBPROJECT_protosplit
+    #include "../../protosplit/config.h"
+#endif
diff --git a/keyboards/deltasplit75/keymaps/default/keymap.c b/keyboards/deltasplit75/keymaps/default/keymap.c
new file mode 100644
index 0000000000..bfb6ac29e3
--- /dev/null
+++ b/keyboards/deltasplit75/keymaps/default/keymap.c
@@ -0,0 +1,31 @@
+#include "deltasplit75.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+
+// Fillers to make layering more clear
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {	
+	KEYMAP(
+		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_INS, KC_HOME, KC_PGUP, 
+		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_DEL, KC_END, KC_PGDN, 
+		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_BSPC, KC_SLCK, 
+		KC_LCTL, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_TRNS, KC_ENT, KC_PAUS,  //modify KC_TRNS to enable ISO Support
+		KC_LSFT, KC_TRNS, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_LSFT, KC_UP, KC_PSCR, //modify KC_TRNS to enable ISO Support
+		KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, MO(1), KC_SPC, KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT),
+
+	KEYMAP(
+		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, RESET, 
+		KC_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, KC_TRNS, 
+		KC_TRNS, KC_VOLU, KC_UP, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
+		M(1), KC_LEFT, KC_DOWN, KC_RGHT, KC_PAUS, 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_VOLD, M(0), KC_PSCR, 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_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS),
+
+};
\ No newline at end of file
diff --git a/keyboards/deltasplit75/keymaps/protosplit/config.h b/keyboards/deltasplit75/keymaps/protosplit/config.h
new file mode 100644
index 0000000000..c72c00e681
--- /dev/null
+++ b/keyboards/deltasplit75/keymaps/protosplit/config.h
@@ -0,0 +1,31 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.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/>.
+*/
+
+
+#define USE_SERIAL
+
+#define MASTER_LEFT
+// #define _MASTER_RIGHT
+// #define EE_HANDS
+
+
+#ifdef SUBPROJECT_v2
+    #include "../../v2/config.h"
+#endif
+#ifdef SUBPROJECT_protosplit
+    #include "../../protosplit/config.h"
+#endif
diff --git a/keyboards/deltasplit75/keymaps/protosplit/keymap.c b/keyboards/deltasplit75/keymaps/protosplit/keymap.c
new file mode 100644
index 0000000000..14bf6e0f86
--- /dev/null
+++ b/keyboards/deltasplit75/keymaps/protosplit/keymap.c
@@ -0,0 +1,31 @@
+#include "deltasplit75.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+
+// Fillers to make layering more clear
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {	
+	KEYMAP(
+		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_INS, KC_HOME, KC_PGUP, 
+		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_DEL, KC_END, KC_PGDN, 
+		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_BSPC, KC_SLCK, 
+		KC_LCTL, 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_PAUS,
+		KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_LSFT, KC_UP, KC_PSCR,
+		KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, MO(1), KC_SPC, KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT),
+
+	KEYMAP(
+		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, RESET, 
+		KC_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, KC_TRNS, 
+		KC_TRNS, KC_VOLU, KC_UP, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
+		M(1), KC_LEFT, KC_DOWN, KC_RGHT, KC_PAUS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
+		KC_TRNS, KC_VOLD, M(0), KC_PSCR, 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_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS),
+
+};
\ No newline at end of file
diff --git a/keyboards/deltasplit75/protosplit/Makefile b/keyboards/deltasplit75/protosplit/Makefile
new file mode 100644
index 0000000000..4e2a6f00fd
--- /dev/null
+++ b/keyboards/deltasplit75/protosplit/Makefile
@@ -0,0 +1,3 @@
+ifndef MAKEFILE_INCLUDED
+	include ../../Makefile
+endif
\ No newline at end of file
diff --git a/keyboards/deltasplit75/protosplit/config.h b/keyboards/deltasplit75/protosplit/config.h
new file mode 100644
index 0000000000..d1f6f7966c
--- /dev/null
+++ b/keyboards/deltasplit75/protosplit/config.h
@@ -0,0 +1,90 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.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/>.
+*/
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x3060
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    xyxjj
+#define PRODUCT         DeltaSplit75
+#define DESCRIPTION     75% split keyboard
+
+/* key matrix size */
+// Rows are doubled-up
+#define MATRIX_ROWS 14
+#define MATRIX_COLS 8
+
+// wiring of each half
+#define MATRIX_ROW_PINS { F4, F5, F6, F7, B1, B3, B2 }
+#define MATRIX_COL_PINS { B6, B5, B4, E6, D7, C6, D4, D1}
+
+#define CATERINA_BOOTLOADER
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* number of backlight levels */
+// #define BACKLIGHT_LEVELS 3
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCING_DELAY 5
+
+/* 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
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+/* ws2812 RGB LED */
+#define RGB_DI_PIN D3
+#define RGBLIGHT_TIMER
+#define RGBLED_NUM 12    // Number of LEDs
+#define ws2812_PORTREG  PORTD
+#define ws2812_DDRREG   DDRD
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+// #define NO_DEBUG
+
+/* disable print */
+// #define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+
+#endif
\ No newline at end of file
diff --git a/keyboards/deltasplit75/protosplit/protosplit.c b/keyboards/deltasplit75/protosplit/protosplit.c
new file mode 100644
index 0000000000..a4b54dcfce
--- /dev/null
+++ b/keyboards/deltasplit75/protosplit/protosplit.c
@@ -0,0 +1,32 @@
+#include "deltasplit75.h"
+
+#ifdef AUDIO_ENABLE
+    float tone_startup[][2] = SONG(STARTUP_SOUND);
+    float tone_goodbye[][2] = SONG(GOODBYE_SOUND);
+#endif
+
+void matrix_init_kb(void) {
+
+    #ifdef AUDIO_ENABLE
+        _delay_ms(20); // gets rid of tick
+        PLAY_NOTE_ARRAY(tone_startup, false, 0);
+    #endif
+
+    // // green led on
+    // DDRD |= (1<<5);
+    // PORTD &= ~(1<<5);
+
+    // // orange led on
+    // DDRB |= (1<<0);
+    // PORTB &= ~(1<<0);
+
+	matrix_init_user();
+};
+
+void shutdown_user(void) {
+    #ifdef AUDIO_ENABLE
+        PLAY_NOTE_ARRAY(tone_goodbye, false, 0);
+	_delay_ms(150);
+	stop_all_notes();
+    #endif
+}
diff --git a/keyboards/deltasplit75/protosplit/protosplit.h b/keyboards/deltasplit75/protosplit/protosplit.h
new file mode 100644
index 0000000000..7a0f5b703e
--- /dev/null
+++ b/keyboards/deltasplit75/protosplit/protosplit.h
@@ -0,0 +1,37 @@
+#ifndef protosplit_H
+#define protosplit_H
+
+#include "../deltasplit75.h"
+
+//void promicro_bootloader_jmp(bool program);
+#include "quantum.h"
+
+//void promicro_bootloader_jmp(bool program);
+//matrix is defined in a weird way here; the layout on both sides are asymmetrical, but the "matrix" is symmetrical but with empty gaps
+//the last column is defined as a separate row because the firmware currently doesnt support more than 8 columns (this layout has 9 columns per side) K45 and K110 are the Bs on both sides
+#define KEYMAP( \
+	K00,   K01,   K02,   K03,   K04,   K05,   K06,       K70,   K71,   K72,   K73,   K74,   K75,   K76,   K77,   K132, \
+	K10,   K11,   K12,   K13,   K14,   K15,   K16,       K80,   K81,   K82,   K83,   K84,   K85,   K86,   K87,   K133, \
+	K20,   K21,   K22,   K23,   K24,   K25,              K90,   K91,   K92,   K93,   K94,   K95,   K96,   K97,   K134, \
+	K30,   K31,   K32,   K33,   K34,   K35,              K100,  K101,  K102,  K103,  K104,  K105,         K107,  K135, \
+	K40,   K41,   K42,   K43,   K44,   K45,              K110,  K111,  K112,  K113,  K114,  K115,  K116,  K117,  K136, \
+	K50,   K51,   K52,          K54,   K55,              K120,  K121,  K122,  K123,                K126,  K127,  K137 \
+	) \
+	{ \
+		{ K00,   K01,   K02,   K03,   K04,   K05,   K06,   KC_NO}, \
+		{ K10,   K11,   K12,   K13,   K14,   K15,   K16,   KC_NO}, \
+		{ K20,   K21,   K22,   K23,   K24,   K25,   KC_NO, KC_NO}, \
+		{ K30,   K31,   K32,   K33,   K34,   K35,   KC_NO, KC_NO}, \
+		{ K40,   K41,   K42,   K43,   K44,   K45,   KC_NO, KC_NO}, \
+		{ K50,   K51,   K52,   KC_NO, K54,   K55,   KC_NO, KC_NO}, \
+		{ KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO}, \
+		{ K70  , K71,   K72,   K73,   K74,   K75,   K76,   K77}, \
+		{ K80,   K81,   K82,   K83,   K84,   K85,   K86,   K87}, \
+		{ K90,   K91,   K92,   K93,   K94,   K95,   K96,   K97}, \
+		{ K100,  K101,  K102,  K103,  K104,  K105,  KC_NO, K107}, \
+		{ K110,  K111,  K112,  K113,  K114,  K115,  K116,  K117}, \
+		{ K120,  K121,  K122,  K123,  KC_NO, KC_NO, K126,  K127}, \
+		{ KC_NO, KC_NO, K132,  K133,  K134,  K135,  K136,  K137} \
+	}
+
+#endif
\ No newline at end of file
diff --git a/keyboards/deltasplit75/protosplit/rules.mk b/keyboards/deltasplit75/protosplit/rules.mk
new file mode 100644
index 0000000000..80a942d06f
--- /dev/null
+++ b/keyboards/deltasplit75/protosplit/rules.mk
@@ -0,0 +1,5 @@
+BACKLIGHT_ENABLE = no
+
+ifndef QUANTUM_DIR
+	include ../../../Makefile
+endif
diff --git a/keyboards/deltasplit75/readme.md b/keyboards/deltasplit75/readme.md
index 6932c556bf..5844412bf6 100644
--- a/keyboards/deltasplit75/readme.md
+++ b/keyboards/deltasplit75/readme.md
@@ -17,21 +17,21 @@ Files are available here: https://github.com/xyxjj/DeltaSplit75-Case-files
 Download or clone the whole firmware and navigate to the keyboards/DeltaSplit75 directory. Once your dev env is setup, you'll be able to generate the default .hex using:
 
 ```
-make V2
+make v2
 
 or
 
-make ProtoSplit-ProtoSplit (if you have one of the prototype PCBs)
+make protosplit-protosplit (if you have one of the prototype PCBs)
 ```
 
 You will see a lot of output and if everything worked correctly you will see the built hex files:
 
 ```
-DeltaSplit75_ProtoSplit_ProtoSplit.hex
+deltasplit75_protosplit_protosplit.hex
 
 or
 
-DeltaSplit75_V2_Default.hex
+deltasplit75_v2_default.hex
 
 ```