diff --git a/keyboards/ibm/model_m/yacobo/config.h b/keyboards/ibm/model_m/yacobo/config.h
new file mode 100644
index 00000000000..f8e96c8d6e2
--- /dev/null
+++ b/keyboards/ibm/model_m/yacobo/config.h
@@ -0,0 +1,22 @@
+/* Copyright 2024 Stephen Edwards
+ *
+ * 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 .
+ *
+ * Adapted from the Model H Project by Jonathan Hawthorn.
+ */
+
+#pragma once
+
+/* The status LED on the Blue Pill. */
+#define BLUE_PILL_STATUS_LED C13
diff --git a/keyboards/ibm/model_m/yacobo/keyboard.json b/keyboards/ibm/model_m/yacobo/keyboard.json
new file mode 100644
index 00000000000..7ea9c6a621c
--- /dev/null
+++ b/keyboards/ibm/model_m/yacobo/keyboard.json
@@ -0,0 +1,285 @@
+{
+ "manufacturer": "IBM",
+ "keyboard_name": "Model M (Yacobo)",
+ "maintainer": "sje-mse",
+ "diode_direction": "COL2ROW",
+ "features": {
+ "bootmagic": true,
+ "extrakey": true,
+ "mousekey": true
+ },
+ "qmk": {
+ "locking": {
+ "enabled": true,
+ "resync": true
+ }
+ },
+ "indicators": {
+ "num_lock": "B11",
+ "caps_lock": "B10",
+ "scroll_lock": "B1",
+ "on_state": 0
+ },
+ "matrix_pins": {
+ "cols": ["B9", "B8", "B7", "B6", "B5", "B4", "B3", "A15", "A10", "A9", "A8", "B15", "B14", "B13", "B12", "A0"],
+ "rows": ["A1", "A2", "A3", "A4", "A5", "A6", "A7","B0"],
+ "ghost": true
+ },
+ "development_board": "bluepill",
+ "url": "https://github.com/sje-mse/yacobo",
+ "usb": {
+ "device_version": "1.0.0",
+ "max_power": 100,
+ "pid": "0xB155",
+ "vid": "0xFEED"
+ },
+ "layouts": {
+ "LAYOUT_fullsize_ansi_wkl": {
+ "layout": [
+ {"label": "Esc", "matrix": [0, 2], "x": 0, "y": 0},
+
+ {"label": "F1", "matrix": [2, 3], "x": 2, "y": 0},
+ {"label": "F2", "matrix": [2, 4], "x": 3, "y": 0},
+ {"label": "F3", "matrix": [1, 4], "x": 4, "y": 0},
+ {"label": "F4", "matrix": [0, 4], "x": 5, "y": 0},
+
+ {"label": "F5", "matrix": [0, 6], "x": 6.5, "y": 0},
+ {"label": "F6", "matrix": [0, 8], "x": 7.5, "y": 0},
+ {"label": "F7", "matrix": [1, 9], "x": 8.5, "y": 0},
+ {"label": "F8", "matrix": [2, 9], "x": 9.5, "y": 0},
+
+ {"label": "F9", "matrix": [2, 6], "x": 11, "y": 0},
+ {"label": "F10", "matrix": [3, 6], "x": 12, "y": 0},
+ {"label": "F11", "matrix": [3, 11], "x": 13, "y": 0},
+ {"label": "F12", "matrix": [3, 12], "x": 14, "y": 0},
+
+ {"label": "Print Screen", "matrix": [3, 15], "x": 15.5, "y": 0},
+ {"label": "Scroll Lock", "matrix": [4, 15], "x": 16.5, "y": 0},
+ {"label": "Pause", "matrix": [6, 14], "x": 17.5, "y": 0},
+
+ {"label": "`", "matrix": [2, 2], "x": 0, "y": 1.5},
+ {"label": "1", "matrix": [3, 2], "x": 1, "y": 1.5},
+ {"label": "2", "matrix": [3, 3], "x": 2, "y": 1.5},
+ {"label": "3", "matrix": [3, 4], "x": 3, "y": 1.5},
+ {"label": "4", "matrix": [3, 5], "x": 4, "y": 1.5},
+ {"label": "5", "matrix": [2, 5], "x": 5, "y": 1.5},
+ {"label": "6", "matrix": [2, 7], "x": 6, "y": 1.5},
+ {"label": "7", "matrix": [3, 7], "x": 7, "y": 1.5},
+ {"label": "8", "matrix": [3, 8], "x": 8, "y": 1.5},
+ {"label": "9", "matrix": [3, 9], "x": 9, "y": 1.5},
+ {"label": "0", "matrix": [3, 10], "x": 10, "y": 1.5},
+ {"label": "-", "matrix": [2, 10], "x": 11, "y": 1.5},
+ {"label": "=", "matrix": [2, 8], "x": 12, "y": 1.5},
+ {"label": "Backspace", "matrix": [1, 6], "x": 13, "y": 1.5, "w": 2},
+
+ {"label": "Insert", "matrix": [2, 12], "x": 15.5, "y": 1.5},
+ {"label": "Home", "matrix": [2, 14], "x": 16.5, "y": 1.5},
+ {"label": "Page Up", "matrix": [2, 13], "x": 17.5, "y": 1.5},
+
+ {"label": "Num Lock", "matrix": [6, 11], "x": 19, "y": 1.5},
+ {"label": "/", "matrix": [6, 12], "x": 20, "y": 1.5},
+ {"label": "*", "matrix": [6, 13], "x": 21, "y": 1.5},
+ {"label": "-", "matrix": [7, 13], "x": 22, "y": 1.5},
+
+ {"label": "Tab", "matrix": [1, 2], "x": 0, "y": 2.5, "w": 1.5},
+ {"label": "Q", "matrix": [4, 2], "x": 1.5, "y": 2.5},
+ {"label": "W", "matrix": [4, 3], "x": 2.5, "y": 2.5},
+ {"label": "E", "matrix": [4, 4], "x": 3.5, "y": 2.5},
+ {"label": "R", "matrix": [4, 5], "x": 4.5, "y": 2.5},
+ {"label": "T", "matrix": [1, 5], "x": 5.5, "y": 2.5},
+ {"label": "Y", "matrix": [1, 7], "x": 6.5, "y": 2.5},
+ {"label": "U", "matrix": [4, 7], "x": 7.5, "y": 2.5},
+ {"label": "I", "matrix": [4, 8], "x": 8.5, "y": 2.5},
+ {"label": "O", "matrix": [4, 9], "x": 9.5, "y": 2.5},
+ {"label": "P", "matrix": [4, 10], "x": 10.5, "y": 2.5},
+ {"label": "[", "matrix": [1, 10], "x": 11.5, "y": 2.5},
+ {"label": "]", "matrix": [1, 8], "x": 12.5, "y": 2.5},
+ {"label": "\\", "matrix": [5, 6], "x": 13.5, "y": 2.5, "w": 1.5},
+
+ {"label": "Delete", "matrix": [2, 11], "x": 15.5, "y": 2.5},
+ {"label": "End", "matrix": [3, 14], "x": 16.5, "y": 2.5},
+ {"label": "Page Down", "matrix": [3, 13], "x": 17.5, "y": 2.5},
+
+ {"label": "7", "matrix": [4, 11], "x": 19, "y": 2.5},
+ {"label": "8", "matrix": [4, 12], "x": 20, "y": 2.5},
+ {"label": "9", "matrix": [4, 13], "x": 21, "y": 2.5},
+ {"label": "+", "matrix": [4, 14], "x": 22, "y": 2.5, "h": 2},
+
+ {"label": "Caps Lock", "matrix": [1, 3], "x": 0, "y": 3.5, "w": 1.25},
+ {"label": "A", "matrix": [5, 2], "x": 1.75, "y": 3.5},
+ {"label": "S", "matrix": [5, 3], "x": 2.75, "y": 3.5},
+ {"label": "D", "matrix": [5, 4], "x": 3.75, "y": 3.5},
+ {"label": "F", "matrix": [5, 5], "x": 4.75, "y": 3.5},
+ {"label": "G", "matrix": [0, 5], "x": 5.75, "y": 3.5},
+ {"label": "H", "matrix": [0, 7], "x": 6.75, "y": 3.5},
+ {"label": "J", "matrix": [5, 7], "x": 7.75, "y": 3.5},
+ {"label": "K", "matrix": [5, 8], "x": 8.75, "y": 3.5},
+ {"label": "L", "matrix": [5, 9], "x": 9.75, "y": 3.5},
+ {"label": ";", "matrix": [5, 10], "x": 10.75, "y": 3.5},
+ {"label": "'", "matrix": [0, 10], "x": 11.75, "y": 3.5},
+ {"label": "Enter", "matrix": [6, 6], "x": 12.75, "y": 3.5, "w": 2.25},
+
+ {"label": "4", "matrix": [1, 11], "x": 19, "y": 3.5},
+ {"label": "5", "matrix": [1, 12], "x": 20, "y": 3.5},
+ {"label": "6", "matrix": [1, 13], "x": 21, "y": 3.5},
+
+ {"label": "Shift", "matrix": [1, 1], "x": 0, "y": 4.5, "w": 2.25},
+ {"label": "Z", "matrix": [6, 2], "x": 2.25, "y": 4.5},
+ {"label": "X", "matrix": [6, 3], "x": 3.25, "y": 4.5},
+ {"label": "C", "matrix": [6, 4], "x": 4.25, "y": 4.5},
+ {"label": "V", "matrix": [6, 5], "x": 5.25, "y": 4.5},
+ {"label": "B", "matrix": [7, 5], "x": 6.25, "y": 4.5},
+ {"label": "N", "matrix": [7, 7], "x": 7.25, "y": 4.5},
+ {"label": "M", "matrix": [6, 7], "x": 8.25, "y": 4.5},
+ {"label": ",", "matrix": [6, 8], "x": 9.25, "y": 4.5},
+ {"label": ".", "matrix": [6, 9], "x": 10.25, "y": 4.5},
+ {"label": "/", "matrix": [7, 10], "x": 11.25, "y": 4.5},
+ {"label": "Shift", "matrix": [6, 1], "x": 12.25, "y": 4.5, "w": 2.75},
+
+ {"label": "\u2191", "matrix": [0, 14], "x": 16.5, "y": 4.5},
+
+ {"label": "1", "matrix": [5, 11], "x": 19, "y": 4.5},
+ {"label": "2", "matrix": [5, 12], "x": 20, "y": 4.5},
+ {"label": "3", "matrix": [5, 13], "x": 21, "y": 4.5},
+ {"label": "Enter", "matrix": [5, 14], "x": 22, "y": 4.5, "h": 2},
+
+ {"label": "Ctrl", "matrix": [2, 0], "x": 0, "y": 5.5, "w": 1.5},
+ {"label": "Alt", "matrix": [0, 15], "x": 2.5, "y": 5.5, "w": 1.5},
+ {"label": "Space", "matrix": [7, 6], "x": 4, "y": 5.5, "w": 7},
+ {"label": "Alt Gr", "matrix": [7, 15], "x": 11, "y": 5.5, "w": 1.5},
+ {"label": "Ctrl", "matrix": [6, 0], "x": 13.5, "y": 5.5, "w": 1.5},
+
+ {"label": "\u2190", "matrix": [7, 14], "x": 15.5, "y": 5.5},
+ {"label": "\u2193", "matrix": [7, 11], "x": 16.5, "y": 5.5},
+ {"label": "\u2192", "matrix": [7, 12], "x": 17.5, "y": 5.5},
+
+ {"label": "0", "matrix": [0, 11], "x": 19, "y": 5.5, "w": 2},
+ {"label": ".", "matrix": [0, 13], "x": 21, "y": 5.5}
+ ]
+ },
+ "LAYOUT_fullsize_iso_wkl": {
+ "layout": [
+ {"label": "Esc", "matrix": [0, 2], "x": 0, "y": 0},
+
+ {"label": "F1", "matrix": [2, 3], "x": 2, "y": 0},
+ {"label": "F2", "matrix": [2, 4], "x": 3, "y": 0},
+ {"label": "F3", "matrix": [1, 4], "x": 4, "y": 0},
+ {"label": "F4", "matrix": [0, 4], "x": 5, "y": 0},
+
+ {"label": "F5", "matrix": [0, 6], "x": 6.5, "y": 0},
+ {"label": "F6", "matrix": [0, 8], "x": 7.5, "y": 0},
+ {"label": "F7", "matrix": [1, 9], "x": 8.5, "y": 0},
+ {"label": "F8", "matrix": [2, 9], "x": 9.5, "y": 0},
+
+ {"label": "F9", "matrix": [2, 6], "x": 11, "y": 0},
+ {"label": "F10", "matrix": [3, 6], "x": 12, "y": 0},
+ {"label": "F11", "matrix": [3, 11], "x": 13, "y": 0},
+ {"label": "F12", "matrix": [3, 12], "x": 14, "y": 0},
+
+ {"label": "Print Screen", "matrix": [3, 15], "x": 15.5, "y": 0},
+ {"label": "Scroll Lock", "matrix": [4, 15], "x": 16.5, "y": 0},
+ {"label": "Pause", "matrix": [6, 14], "x": 17.5, "y": 0},
+
+ {"label": "`", "matrix": [2, 2], "x": 0, "y": 1.5},
+ {"label": "1", "matrix": [3, 2], "x": 1, "y": 1.5},
+ {"label": "2", "matrix": [3, 3], "x": 2, "y": 1.5},
+ {"label": "3", "matrix": [3, 4], "x": 3, "y": 1.5},
+ {"label": "4", "matrix": [3, 5], "x": 4, "y": 1.5},
+ {"label": "5", "matrix": [2, 5], "x": 5, "y": 1.5},
+ {"label": "6", "matrix": [2, 7], "x": 6, "y": 1.5},
+ {"label": "7", "matrix": [3, 7], "x": 7, "y": 1.5},
+ {"label": "8", "matrix": [3, 8], "x": 8, "y": 1.5},
+ {"label": "9", "matrix": [3, 9], "x": 9, "y": 1.5},
+ {"label": "0", "matrix": [3, 10], "x": 10, "y": 1.5},
+ {"label": "-", "matrix": [2, 10], "x": 11, "y": 1.5},
+ {"label": "=", "matrix": [2, 8], "x": 12, "y": 1.5},
+ {"label": "Backspace", "matrix": [1, 6], "x": 13, "y": 1.5, "w": 2},
+
+ {"label": "Insert", "matrix": [2, 12], "x": 15.5, "y": 1.5},
+ {"label": "Home", "matrix": [2, 14], "x": 16.5, "y": 1.5},
+ {"label": "Page Up", "matrix": [2, 13], "x": 17.5, "y": 1.5},
+
+ {"label": "Num Lock", "matrix": [6, 11], "x": 19, "y": 1.5},
+ {"label": "/", "matrix": [6, 12], "x": 20, "y": 1.5},
+ {"label": "*", "matrix": [6, 13], "x": 21, "y": 1.5},
+ {"label": "-", "matrix": [7, 13], "x": 22, "y": 1.5},
+
+ {"label": "Tab", "matrix": [1, 2], "x": 0, "y": 2.5, "w": 1.5},
+ {"label": "Q", "matrix": [4, 2], "x": 1.5, "y": 2.5},
+ {"label": "W", "matrix": [4, 3], "x": 2.5, "y": 2.5},
+ {"label": "E", "matrix": [4, 4], "x": 3.5, "y": 2.5},
+ {"label": "R", "matrix": [4, 5], "x": 4.5, "y": 2.5},
+ {"label": "T", "matrix": [1, 5], "x": 5.5, "y": 2.5},
+ {"label": "Y", "matrix": [1, 7], "x": 6.5, "y": 2.5},
+ {"label": "U", "matrix": [4, 7], "x": 7.5, "y": 2.5},
+ {"label": "I", "matrix": [4, 8], "x": 8.5, "y": 2.5},
+ {"label": "O", "matrix": [4, 9], "x": 9.5, "y": 2.5},
+ {"label": "P", "matrix": [4, 10], "x": 10.5, "y": 2.5},
+ {"label": "[", "matrix": [1, 10], "x": 11.5, "y": 2.5},
+ {"label": "]", "matrix": [1, 8], "x": 12.5, "y": 2.5},
+
+ {"label": "Delete", "matrix": [2, 11], "x": 15.5, "y": 2.5},
+ {"label": "End", "matrix": [3, 14], "x": 16.5, "y": 2.5},
+ {"label": "Page Down", "matrix": [3, 13], "x": 17.5, "y": 2.5},
+
+ {"label": "7", "matrix": [4, 11], "x": 19, "y": 2.5},
+ {"label": "8", "matrix": [4, 12], "x": 20, "y": 2.5},
+ {"label": "9", "matrix": [4, 13], "x": 21, "y": 2.5},
+ {"label": "+", "matrix": [4, 14], "x": 22, "y": 2.5, "h": 2},
+
+ {"label": "Caps Lock", "matrix": [1, 3], "x": 0, "y": 3.5, "w": 1.25},
+ {"label": "A", "matrix": [5, 2], "x": 1.75, "y": 3.5},
+ {"label": "S", "matrix": [5, 3], "x": 2.75, "y": 3.5},
+ {"label": "D", "matrix": [5, 4], "x": 3.75, "y": 3.5},
+ {"label": "F", "matrix": [5, 5], "x": 4.75, "y": 3.5},
+ {"label": "G", "matrix": [0, 5], "x": 5.75, "y": 3.5},
+ {"label": "H", "matrix": [0, 7], "x": 6.75, "y": 3.5},
+ {"label": "J", "matrix": [5, 7], "x": 7.75, "y": 3.5},
+ {"label": "K", "matrix": [5, 8], "x": 8.75, "y": 3.5},
+ {"label": "L", "matrix": [5, 9], "x": 9.75, "y": 3.5},
+ {"label": ";", "matrix": [5, 10], "x": 10.75, "y": 3.5},
+ {"label": "'", "matrix": [0, 10], "x": 11.75, "y": 3.5},
+ {"label": "#", "matrix": [6, 10], "x": 12.75, "y": 3.5},
+ {"label": "Enter", "matrix": [6, 6], "x": 13.75, "y": 2.5, "w": 1.25, "h": 2},
+
+ {"label": "4", "matrix": [1, 11], "x": 19, "y": 3.5},
+ {"label": "5", "matrix": [1, 12], "x": 20, "y": 3.5},
+ {"label": "6", "matrix": [1, 13], "x": 21, "y": 3.5},
+
+ {"label": "Shift", "matrix": [1, 1], "x": 0, "y": 4.5, "w": 1.25},
+ {"label": "\\", "matrix": [0, 3], "x": 1.25, "y": 4.5},
+ {"label": "Z", "matrix": [6, 2], "x": 2.25, "y": 4.5},
+ {"label": "X", "matrix": [6, 3], "x": 3.25, "y": 4.5},
+ {"label": "C", "matrix": [6, 4], "x": 4.25, "y": 4.5},
+ {"label": "V", "matrix": [6, 5], "x": 5.25, "y": 4.5},
+ {"label": "B", "matrix": [7, 5], "x": 6.25, "y": 4.5},
+ {"label": "N", "matrix": [7, 7], "x": 7.25, "y": 4.5},
+ {"label": "M", "matrix": [6, 7], "x": 8.25, "y": 4.5},
+ {"label": ",", "matrix": [6, 8], "x": 9.25, "y": 4.5},
+ {"label": ".", "matrix": [6, 9], "x": 10.25, "y": 4.5},
+ {"label": "/", "matrix": [7, 10], "x": 11.25, "y": 4.5},
+ {"label": "Shift", "matrix": [6, 1], "x": 12.25, "y": 4.5, "w": 2.75},
+
+ {"label": "\u2191", "matrix": [0, 14], "x": 16.5, "y": 4.5},
+
+ {"label": "1", "matrix": [5, 11], "x": 19, "y": 4.5},
+ {"label": "2", "matrix": [5, 12], "x": 20, "y": 4.5},
+ {"label": "3", "matrix": [5, 13], "x": 21, "y": 4.5},
+ {"label": "Enter", "matrix": [5, 14], "x": 22, "y": 4.5, "h": 2},
+
+ {"label": "Ctrl", "matrix": [2, 0], "x": 0, "y": 5.5, "w": 1.5},
+ {"label": "Alt", "matrix": [0, 15], "x": 2.5, "y": 5.5, "w": 1.5},
+ {"label": "Space", "matrix": [7, 6], "x": 4, "y": 5.5, "w": 7},
+ {"label": "Alt Gr", "matrix": [7, 15], "x": 11, "y": 5.5, "w": 1.5},
+ {"label": "Ctrl", "matrix": [6, 0], "x": 13.5, "y": 5.5, "w": 1.5},
+
+ {"label": "\u2190", "matrix": [7, 14], "x": 15.5, "y": 5.5},
+ {"label": "\u2193", "matrix": [7, 11], "x": 16.5, "y": 5.5},
+ {"label": "\u2192", "matrix": [7, 12], "x": 17.5, "y": 5.5},
+
+ {"label": "0", "matrix": [0, 11], "x": 19, "y": 5.5, "w": 2},
+ {"label": ".", "matrix": [0, 13], "x": 21, "y": 5.5}
+ ]
+ }
+ }
+}
diff --git a/keyboards/ibm/model_m/yacobo/keymaps/default/keymap.c b/keyboards/ibm/model_m/yacobo/keymaps/default/keymap.c
new file mode 100644
index 00000000000..27647d4ed3c
--- /dev/null
+++ b/keyboards/ibm/model_m/yacobo/keymaps/default/keymap.c
@@ -0,0 +1,30 @@
+/* Copyright 2021 Stephen Edwards
+ *
+ * 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 .
+ *
+ * Adapted from the Model H Project by Jonathan Hawthorn.
+ */
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [0] = LAYOUT_fullsize_ansi_wkl( /* Base layer */
+ 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_SCRL, KC_PAUS,
+ 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_INS, KC_HOME, KC_PGUP, KC_NUM, KC_PSLS, KC_PAST, KC_PMNS,
+ 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_DEL, KC_END, KC_PGDN, KC_P7, KC_P8, KC_P9, KC_PPLS,
+ 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_P4, KC_P5, KC_P6,
+ 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_P1, KC_P2, KC_P3, KC_PENT,
+ KC_LCTL, KC_LALT, KC_SPC, KC_RALT, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT, KC_P0, KC_PDOT
+ ),
+};
diff --git a/keyboards/ibm/model_m/yacobo/readme.md b/keyboards/ibm/model_m/yacobo/readme.md
new file mode 100644
index 00000000000..d0cafa1d444
--- /dev/null
+++ b/keyboards/ibm/model_m/yacobo/readme.md
@@ -0,0 +1,28 @@
+# yacobo
+
+
+
+*A replacement qmk-compatible control board for the 101-key Model M keyboards.
+Inspired by and based on the ModelH by jhawthorn, in comparison this design uses 100% through-hole components, including the widely available STM32F103C8T6 "Blue Pill" development board, for ease of assembly.*
+
+* Keyboard Maintainer: [Stephen Edwards](https://github.com/sje-mse)
+* Hardware Supported: IBM 101-key Model M with Yacobo replacement control boards.
+* Hardware Availability: [Yacobo PCB](https://github.com/sje-mse/yacobo).
+
+Make example for this keyboard (after setting up your build environment):
+
+ make yacobo:default
+
+Flashing example for this keyboard:
+
+ make yacobo:default:flash
+
+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).
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
+* **Physical reset button**: Press the "Reset" button on the Blue Pill daughterboard.
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available
diff --git a/keyboards/ibm/model_m/yacobo/yacobo.c b/keyboards/ibm/model_m/yacobo/yacobo.c
new file mode 100644
index 00000000000..7664facacc7
--- /dev/null
+++ b/keyboards/ibm/model_m/yacobo/yacobo.c
@@ -0,0 +1,26 @@
+/* Copyright 2024 Stephen Edwards
+ *
+ * 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 .
+ *
+ * Adapted from the Model H Project by Jonathan Hawthorn.
+ */
+
+#include "quantum.h"
+
+
+void keyboard_pre_init_kb(void) {
+ gpio_set_pin_output(BLUE_PILL_STATUS_LED);
+ gpio_write_pin(BLUE_PILL_STATUS_LED, 0);
+ keyboard_pre_init_user();
+}