diff --git a/keyboards/smithrune/magnus/m75h/config.h b/keyboards/smithrune/magnus/m75h/config.h
new file mode 100644
index 0000000000..310d7b1981
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75h/config.h
@@ -0,0 +1,32 @@
+/*
+Copyright 2023 Gondolindrim
+
+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
+
+#define RGBLIGHT_LED_MAP { 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 30, 29, 28, 27, 26, 25 }
+
+#define RGBLIGHT_DEFAULT_MODE RGBLIGHT_MODE_RAINBOW_SWIRL+5
+
+#define WS2812_PWM_COMPLEMENTARY_OUTPUT
+#define WS2812_PWM_DRIVER PWMD1
+#define WS2812_PWM_CHANNEL 3
+#define WS2812_PWM_PAL_MODE 1
+#define WS2812_DMA_STREAM STM32_DMA2_STREAM5
+#define WS2812_DMA_CHANNEL 6
+
+#define WEAR_LEVELING_LOGICAL_SIZE 2048
+#define WEAR_LEVELING_BACKING_SIZE 4096
diff --git a/keyboards/smithrune/magnus/m75h/halconf.h b/keyboards/smithrune/magnus/m75h/halconf.h
new file mode 100644
index 0000000000..77c188bd65
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75h/halconf.h
@@ -0,0 +1,22 @@
+/* Copyright 2023 Gondolindrim
+ *
+ * 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
+
+#define HAL_USE_PWM TRUE
+#define HAL_USE_PAL TRUE
+
+#include_next <halconf.h>
diff --git a/keyboards/smithrune/magnus/m75h/info.json b/keyboards/smithrune/magnus/m75h/info.json
new file mode 100644
index 0000000000..10214ee523
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75h/info.json
@@ -0,0 +1,141 @@
+{
+    "keyboard_name": "Magnus M75H",
+    "manufacturer": "SmithRune",
+    "url": "",
+    "maintainer": "Gondolindrim",
+    "usb": {
+        "vid": "0x8384",
+        "pid": "0x1676",
+        "device_version": "0.0.1"
+    },
+    "features": {
+        "audio": false,
+        "backlight": false,
+        "bootmagic": true,
+        "command": false,
+        "console": false,
+        "encoder": false,
+        "extrakey": true,
+        "lto": true,
+        "mousekey": true,
+        "nkro": true,
+        "rgblight": true
+    },
+    "diode_direction": "COL2ROW",
+    "ws2812": {
+        "pin": "B15"
+    },
+    "rgblight": {
+        "led_count": 31,
+        "animations": {
+            "alternating": true,
+            "breathing": true,      
+            "christmas": true,      
+            "knight": true,
+            "rainbow_mood": true,
+            "rainbow_swirl": true,
+            "rgb_test": true,  
+            "snake": true,
+            "static_gradient": true,
+            "twinkle": true
+        }
+    }
+    "matrix_pins": {
+        "cols": ["A1" , "A2" , "A4" , "C9" , "A8" , "A10", "B8" , "A15", "C10", "C11", "B5" , "B4", "B3" , "D2" , "C12" ],
+        "rows": ["C15", "A7" , "C4" , "C5" , "C8" , "C3" , "C1" , "C0" , "C2" , "C14" , "A0" ]
+    },
+    "processor": "STM32F401",
+    "bootloader": "stm32-dfu",
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"matrix":[0,0], "x":0, "y":0}, 
+                {"matrix":[0,1], "x":1.25, "y":0}, 
+                {"matrix":[0,2], "x":2.25, "y":0}, 
+                {"matrix":[0,3], "x":3.25, "y":0}, 
+                {"matrix":[0,4], "x":4.25, "y":0}, 
+                {"matrix":[0,5], "x":5.5, "y":0}, 
+                {"matrix":[0,6], "x":6.5, "y":0}, 
+                {"matrix":[0,7], "x":7.5, "y":0}, 
+                {"matrix":[0,8], "x":8.5, "y":0}, 
+                {"matrix":[0,9], "x":9.75, "y":0}, 
+                {"matrix":[0,10], "x":10.75, "y":0}, 
+                {"matrix":[0,11], "x":11.75, "y":0}, 
+                {"matrix":[0,12], "x":12.75, "y":0}, 
+                {"matrix":[0,13], "x":14, "y":0}, 
+
+                {"matrix":[1,0], "x":0, "y":1.5}, 
+                {"matrix":[1,1], "x":1, "y":1.5}, 
+                {"matrix":[1,2], "x":2, "y":1.5}, 
+                {"matrix":[1,3], "x":3, "y":1.5}, 
+                {"matrix":[1,4], "x":4, "y":1.5}, 
+                {"matrix":[1,5], "x":5, "y":1.5}, 
+                {"matrix":[1,6], "x":6, "y":1.5}, 
+                {"matrix":[6,7], "x":7, "y":1.5}, 
+                {"matrix":[6,8], "x":8, "y":1.5}, 
+                {"matrix":[6,9], "x":9, "y":1.5}, 
+                {"matrix":[6,10], "x":10, "y":1.5}, 
+                {"matrix":[6,11], "x":11, "y":1.5}, 
+                {"matrix":[6,12], "x":12, "y":1.5}, 
+                {"matrix":[6,13], "x":13, "y":1.5}, 
+                {"matrix":[6,14], "x":14, "y":1.5}, 
+                {"matrix":[7,14], "x":15.25, "y":1.5}, 
+
+                {"matrix":[2,0], "x":0, "y":2.5, "w":1.5}, 
+                {"matrix":[2,1], "x":1.5, "y":2.5}, 
+                {"matrix":[2,2], "x":2.5, "y":2.5}, 
+                {"matrix":[2,3], "x":3.5, "y":2.5}, 
+                {"matrix":[2,4], "x":4.5, "y":2.5}, 
+                {"matrix":[2,5], "x":5.5, "y":2.5}, 
+                {"matrix":[7,6], "x":6.5, "y":2.5}, 
+                {"matrix":[7,7], "x":7.5, "y":2.5}, 
+                {"matrix":[7,8], "x":8.5, "y":2.5}, 
+                {"matrix":[7,9], "x":9.5, "y":2.5}, 
+                {"matrix":[7,10], "x":10.5, "y":2.5}, 
+                {"matrix":[7,11], "x":11.5, "y":2.5}, 
+                {"matrix":[7,12], "x":12.5, "y":2.5}, 
+                {"matrix":[7,13], "x":13.5, "y":2.5, "w":1.5}, 
+                {"matrix":[8,14], "x":15.25, "y":2.5},
+
+                {"matrix":[3,0], "x":0, "y":3.5, "w":1.75}, 
+                {"matrix":[3,1], "x":1.75, "y":3.5}, 
+                {"matrix":[3,2], "x":2.75, "y":3.5}, 
+                {"matrix":[3,3], "x":3.75, "y":3.5}, 
+                {"matrix":[3,4], "x":4.75, "y":3.5}, 
+                {"matrix":[8,5], "x":5.75, "y":3.5}, 
+                {"matrix":[8,6], "x":6.75, "y":3.5}, 
+                {"matrix":[8,7], "x":7.75, "y":3.5}, 
+                {"matrix":[8,8], "x":8.75, "y":3.5}, 
+                {"matrix":[8,9], "x":9.75, "y":3.5}, 
+                {"matrix":[8,10], "x":10.75, "y":3.5}, 
+                {"matrix":[8,11], "x":11.75, "y":3.5}, 
+                {"matrix":[8,13], "x":12.75, "y":3.5, "w":2.25}, 
+                {"matrix":[9,13], "x":15.25, "y":3.5},
+
+                {"matrix":[4,0], "x":0, "y":4.5, "w":2.25}, 
+                {"matrix":[4,2], "x":2.25, "y":4.5}, 
+                {"matrix":[4,3], "x":3.25, "y":4.5}, 
+                {"matrix":[4,4], "x":4.25, "y":4.5}, 
+                {"matrix":[9,5], "x":5.25, "y":4.5}, 
+                {"matrix":[9,6], "x":6.25, "y":4.5}, 
+                {"matrix":[9,7], "x":7.25, "y":4.5}, 
+                {"matrix":[9,8], "x":8.25, "y":4.5}, 
+                {"matrix":[9,9], "x":9.25, "y":4.5}, 
+                {"matrix":[9,10], "x":10.25, "y":4.5}, 
+                {"matrix":[9,11], "x":11.25, "y":4.5}, 
+                {"matrix":[9,12], "x":12.25, "y":4.5, "w":1.75}, 
+                {"matrix":[9,14], "x":14.25, "y":4.75},
+
+                {"matrix":[10,0], "x":0, "y":5.5, "w":1.25}, 
+                {"matrix":[10,1], "x":1.25, "y":5.5, "w":1.25}, 
+                {"matrix":[10,2], "x":2.5, "y":5.5, "w":1.25}, 
+                {"matrix":[5,6], "x":3.75, "y":5.5, "w":6.25}, 
+                {"matrix":[5,10], "x":10, "y":5.5, "w":1.25}, 
+                {"matrix":[5,11], "x":11.25, "y":5.5, "w":1.25}, 
+                {"matrix":[5,12], "x":13.25, "y":5.75}, 
+                {"matrix":[5,13], "x":14.25, "y":5.75}, 
+                {"matrix":[5,14], "x":15.25, "y":5.75}
+                ]
+        }
+    }
+}
diff --git a/keyboards/smithrune/magnus/m75h/keymaps/default/keymap.c b/keyboards/smithrune/magnus/m75h/keymaps/default/keymap.c
new file mode 100644
index 0000000000..3dc786a62c
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75h/keymaps/default/keymap.c
@@ -0,0 +1,35 @@
+/* Copyright 2023 Gondolindrim
+ *
+ * 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] = {
+[0] = LAYOUT( /* Base */
+    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_F13 ,
+    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_BSPC, KC_INS,
+    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_LCTL, KC_LGUI, KC_LALT,                            KC_SPC,                    KC_RALT, KC_RGUI,                   KC_LEFT, KC_DOWN, KC_RGHT
+),
+[1] = LAYOUT( /* Base */
+    QK_BOOT, 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, 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, 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, KC_TRNS,          KC_TRNS,
+    KC_TRNS, KC_TRNS, KC_TRNS,                            KC_TRNS,                   KC_TRNS, KC_TRNS,                   KC_TRNS, KC_TRNS, KC_TRNS
+)
+};
diff --git a/keyboards/smithrune/magnus/m75h/keymaps/via/keymap.c b/keyboards/smithrune/magnus/m75h/keymaps/via/keymap.c
new file mode 100644
index 0000000000..3dc786a62c
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75h/keymaps/via/keymap.c
@@ -0,0 +1,35 @@
+/* Copyright 2023 Gondolindrim
+ *
+ * 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] = {
+[0] = LAYOUT( /* Base */
+    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_F13 ,
+    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_BSPC, KC_INS,
+    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_LCTL, KC_LGUI, KC_LALT,                            KC_SPC,                    KC_RALT, KC_RGUI,                   KC_LEFT, KC_DOWN, KC_RGHT
+),
+[1] = LAYOUT( /* Base */
+    QK_BOOT, 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, 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, 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, KC_TRNS,          KC_TRNS,
+    KC_TRNS, KC_TRNS, KC_TRNS,                            KC_TRNS,                   KC_TRNS, KC_TRNS,                   KC_TRNS, KC_TRNS, KC_TRNS
+)
+};
diff --git a/keyboards/smithrune/magnus/m75h/keymaps/via/rules.mk b/keyboards/smithrune/magnus/m75h/keymaps/via/rules.mk
new file mode 100644
index 0000000000..1e5b99807c
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75h/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
diff --git a/keyboards/smithrune/magnus/m75h/m75h.c b/keyboards/smithrune/magnus/m75h/m75h.c
new file mode 100644
index 0000000000..940f5b61cf
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75h/m75h.c
@@ -0,0 +1,31 @@
+/* Copyright 2023 Gondolindrim
+ *
+ * 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 "quantum.h"
+#define CAPS_COLOR_R 0xFF
+#define CAPS_COLOR_G 0xFF
+#define CAPS_COLOR_B 0xFF
+
+void keyboard_post_init_kb(void) {
+    rgblight_set_effect_range(0,29);
+    keyboard_post_init_user();
+}
+
+bool led_update_kb(led_t led_state) {
+    bool res = led_update_user(led_state);
+    if(res) led_state.caps_lock ? rgblight_setrgb_at(CAPS_COLOR_R, CAPS_COLOR_G, CAPS_COLOR_B, 30) : rgblight_setrgb_at(0, 0, 0, 30);
+    return res;
+}
diff --git a/keyboards/smithrune/magnus/m75h/mcuconf.h b/keyboards/smithrune/magnus/m75h/mcuconf.h
new file mode 100644
index 0000000000..8f4541a8c3
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75h/mcuconf.h
@@ -0,0 +1,28 @@
+/* Copyright 2023 Gondolindrim
+ *
+ * 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_next <mcuconf.h>
+
+#undef STM32_PWM_USE_ADVANCED
+#define STM32_PWM_USE_ADVANCED TRUE
+
+#undef STM32_PWM_USE_TIM3
+#define STM32_PWM_USE_TIM3 TRUE
+
+#undef STM32_PWM_USE_TIM1
+#define STM32_PWM_USE_TIM1 TRUE
diff --git a/keyboards/smithrune/magnus/m75h/rules.mk b/keyboards/smithrune/magnus/m75h/rules.mk
new file mode 100644
index 0000000000..6e7633bfe0
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75h/rules.mk
@@ -0,0 +1 @@
+# This file intentionally left blank
diff --git a/keyboards/smithrune/magnus/m75s/config.h b/keyboards/smithrune/magnus/m75s/config.h
new file mode 100644
index 0000000000..61f5f8e0a5
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75s/config.h
@@ -0,0 +1,34 @@
+/*
+Copyright 2023 Gondolindrim
+
+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
+
+#define BACKLIGHT_PWM_DRIVER    PWMD3
+#define BACKLIGHT_PWM_CHANNEL   1
+#define BACKLIGHT_PAL_MODE      2
+
+#define RGBLIGHT_DEFAULT_MODE RGBLIGHT_MODE_RAINBOW_SWIRL+5
+
+#define WS2812_PWM_COMPLEMENTARY_OUTPUT
+#define WS2812_PWM_DRIVER PWMD1
+#define WS2812_PWM_CHANNEL 3
+#define WS2812_PWM_PAL_MODE 1
+#define WS2812_DMA_STREAM STM32_DMA2_STREAM5
+#define WS2812_DMA_CHANNEL 6
+
+#define WEAR_LEVELING_LOGICAL_SIZE 2048
+#define WEAR_LEVELING_BACKING_SIZE 4096
diff --git a/keyboards/smithrune/magnus/m75s/halconf.h b/keyboards/smithrune/magnus/m75s/halconf.h
new file mode 100644
index 0000000000..77c188bd65
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75s/halconf.h
@@ -0,0 +1,22 @@
+/* Copyright 2023 Gondolindrim
+ *
+ * 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
+
+#define HAL_USE_PWM TRUE
+#define HAL_USE_PAL TRUE
+
+#include_next <halconf.h>
diff --git a/keyboards/smithrune/magnus/m75s/info.json b/keyboards/smithrune/magnus/m75s/info.json
new file mode 100644
index 0000000000..da2f4e3eff
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75s/info.json
@@ -0,0 +1,151 @@
+{
+    "keyboard_name": "Magnus M75S",
+    "manufacturer": "SmithRune",
+    "url": "",
+    "maintainer": "Gondolindrim",
+    "usb": {
+        "vid": "0x8384",
+        "pid": "0x1675",
+        "device_version": "0.0.1"
+    },
+    "features": {
+        "audio": false,
+        "backlight": true,
+        "bootmagic": true,
+        "command": false,
+        "console": false,
+        "encoder": false,
+        "extrakey": true,
+        "lto": true,
+        "mousekey": true,
+        "nkro": true,
+        "rgblight": true
+    },
+    "diode_direction": "COL2ROW",
+    "backlight": {
+        "pin": "B4",
+        "levels": 20,
+        "breathing": true
+    },
+    "indicators": {
+        "caps_lock": "A10"
+    }
+    "ws2812": {
+        "pin": "B15"
+    },
+    "rgblight": {
+        "led_count": 30,
+        "animations": {
+            "alternating": true,
+            "breathing": true,      
+            "christmas": true,      
+            "knight": true,
+            "rainbow_mood": true,
+            "rainbow_swirl": true,
+            "rgb_test": true,  
+            "snake": true,
+            "static_gradient": true,
+            "twinkle": true
+        }
+    }
+    "matrix_pins": {
+        "cols": ["A8" , "C9" , "C8" , "C7" , "C6" , "C0" , "B9" , "C3" , "A15", "C10", "C11", "C12", "D2" , "B3" , "B5" ],
+        "rows": ["A7" , "C1" , "A6" , "A5" , "A4" , "B8" , "C2" , "A0" , "A1" , "A2" , "A3" ]
+    },
+    "processor": "STM32F401",
+    "bootloader": "stm32-dfu",
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"matrix":[0,0], "x":0, "y":0}, 
+                {"matrix":[0,1], "x":1.25, "y":0}, 
+                {"matrix":[0,2], "x":2.25, "y":0}, 
+                {"matrix":[0,3], "x":3.25, "y":0}, 
+                {"matrix":[0,4], "x":4.25, "y":0}, 
+                {"matrix":[0,5], "x":5.5, "y":0}, 
+                {"matrix":[0,6], "x":6.5, "y":0}, 
+                {"matrix":[0,7], "x":7.5, "y":0}, 
+                {"matrix":[0,8], "x":8.5, "y":0}, 
+                {"matrix":[0,9], "x":9.75, "y":0}, 
+                {"matrix":[0,10], "x":10.75, "y":0}, 
+                {"matrix":[0,11], "x":11.75, "y":0}, 
+                {"matrix":[0,12], "x":12.75, "y":0}, 
+                {"matrix":[0,13], "x":14, "y":0}, 
+
+                {"matrix":[1,0], "x":0, "y":1.5}, 
+                {"matrix":[1,1], "x":1, "y":1.5}, 
+                {"matrix":[1,2], "x":2, "y":1.5}, 
+                {"matrix":[1,3], "x":3, "y":1.5}, 
+                {"matrix":[1,4], "x":4, "y":1.5}, 
+                {"matrix":[1,5], "x":5, "y":1.5}, 
+                {"matrix":[1,6], "x":6, "y":1.5}, 
+                {"matrix":[6,7], "x":7, "y":1.5}, 
+                {"matrix":[6,8], "x":8, "y":1.5}, 
+                {"matrix":[6,9], "x":9, "y":1.5}, 
+                {"matrix":[6,10], "x":10, "y":1.5}, 
+                {"matrix":[6,11], "x":11, "y":1.5}, 
+                {"matrix":[6,12], "x":12, "y":1.5}, 
+                {"matrix":[6,13], "x":13, "y":1.5}, 
+                {"matrix":[6,14], "x":14, "y":1.5}, 
+                {"matrix":[7,14], "x":15.25, "y":1.5}, 
+
+                {"matrix":[2,0], "x":0, "y":2.5, "w":1.5}, 
+                {"matrix":[2,1], "x":1.5, "y":2.5}, 
+                {"matrix":[2,2], "x":2.5, "y":2.5}, 
+                {"matrix":[2,3], "x":3.5, "y":2.5}, 
+                {"matrix":[2,4], "x":4.5, "y":2.5}, 
+                {"matrix":[2,5], "x":5.5, "y":2.5}, 
+                {"matrix":[7,6], "x":6.5, "y":2.5}, 
+                {"matrix":[7,7], "x":7.5, "y":2.5}, 
+                {"matrix":[7,8], "x":8.5, "y":2.5}, 
+                {"matrix":[7,9], "x":9.5, "y":2.5}, 
+                {"matrix":[7,10], "x":10.5, "y":2.5}, 
+                {"matrix":[7,11], "x":11.5, "y":2.5}, 
+                {"matrix":[7,12], "x":12.5, "y":2.5}, 
+                {"matrix":[7,13], "x":13.5, "y":2.5, "w":1.5}, 
+                {"matrix":[8,14], "x":15.25, "y":2.5},
+
+                {"matrix":[3,0], "x":0, "y":3.5, "w":1.75}, 
+                {"matrix":[3,1], "x":1.75, "y":3.5}, 
+                {"matrix":[3,2], "x":2.75, "y":3.5}, 
+                {"matrix":[3,3], "x":3.75, "y":3.5}, 
+                {"matrix":[3,4], "x":4.75, "y":3.5}, 
+                {"matrix":[8,5], "x":5.75, "y":3.5}, 
+                {"matrix":[8,6], "x":6.75, "y":3.5}, 
+                {"matrix":[8,7], "x":7.75, "y":3.5}, 
+                {"matrix":[8,8], "x":8.75, "y":3.5}, 
+                {"matrix":[8,9], "x":9.75, "y":3.5}, 
+                {"matrix":[8,10], "x":10.75, "y":3.5}, 
+                {"matrix":[8,11], "x":11.75, "y":3.5}, 
+                {"matrix":[8,12], "x":12.75, "y":3.5}, 
+                {"matrix":[8,13], "x":13.75, "y":3.5, "w":1.25}, 
+                {"matrix":[9,13], "x":15.25, "y":3.5},
+
+                {"matrix":[4,0], "x":0, "y":4.5, "w":1.25}, 
+                {"matrix":[4,1], "x":1.25, "y":4.5}, 
+                {"matrix":[4,2], "x":2.25, "y":4.5}, 
+                {"matrix":[4,3], "x":3.25, "y":4.5}, 
+                {"matrix":[4,4], "x":4.25, "y":4.5}, 
+                {"matrix":[9,5], "x":5.25, "y":4.5}, 
+                {"matrix":[9,6], "x":6.25, "y":4.5}, 
+                {"matrix":[9,7], "x":7.25, "y":4.5}, 
+                {"matrix":[9,8], "x":8.25, "y":4.5}, 
+                {"matrix":[9,9], "x":9.25, "y":4.5}, 
+                {"matrix":[9,10], "x":10.25, "y":4.5}, 
+                {"matrix":[9,11], "x":11.25, "y":4.5}, 
+                {"matrix":[9,12], "x":12.25, "y":4.5, "w":1.75}, 
+                {"matrix":[9,14], "x":14.25, "y":4.75},
+
+                {"matrix":[10,0], "x":0, "y":5.5, "w":1.25}, 
+                {"matrix":[10,1], "x":1.25, "y":5.5, "w":1.25}, 
+                {"matrix":[10,2], "x":2.5, "y":5.5, "w":1.25}, 
+                {"matrix":[5,6], "x":3.75, "y":5.5, "w":6.25}, 
+                {"matrix":[5,10], "x":10, "y":5.5, "w":1.25}, 
+                {"matrix":[5,11], "x":11.25, "y":5.5, "w":1.25}, 
+                {"matrix":[5,12], "x":13.25, "y":5.75}, 
+                {"matrix":[5,13], "x":14.25, "y":5.75}, 
+                {"matrix":[5,14], "x":15.25, "y":5.75}
+                ]
+        }
+    }
+}
diff --git a/keyboards/smithrune/magnus/m75s/keymaps/default/keymap.c b/keyboards/smithrune/magnus/m75s/keymaps/default/keymap.c
new file mode 100644
index 0000000000..b53b524916
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75s/keymaps/default/keymap.c
@@ -0,0 +1,35 @@
+/* Copyright 2023 Gondolindrim
+ *
+ * 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] = {
+[0] = LAYOUT( /* Base */
+    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_F13 ,
+    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_BSPC, KC_INS,
+    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_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_LCTL, KC_LGUI, KC_LALT,                            KC_SPC,                    KC_RALT, MO(1)  ,                   KC_LEFT, KC_DOWN, KC_RGHT
+),
+[1] = LAYOUT( /* Base */
+    QK_BOOT, 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, 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, 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, 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
+)
+};
diff --git a/keyboards/smithrune/magnus/m75s/keymaps/via/keymap.c b/keyboards/smithrune/magnus/m75s/keymaps/via/keymap.c
new file mode 100644
index 0000000000..cd89ff79e3
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75s/keymaps/via/keymap.c
@@ -0,0 +1,35 @@
+/* Copyright 2023 Gondolindrim
+ *
+ * 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] = {
+[0] = LAYOUT( /* Base */
+    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_F13 ,
+    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_BSPC, KC_INS,
+    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_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_LCTL, KC_LGUI, KC_LALT,                            KC_SPC,                    KC_RALT, KC_RGUI,                   KC_LEFT, KC_DOWN, KC_RGHT
+),
+[1] = LAYOUT( /* Base */
+    QK_BOOT, 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, 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, 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, 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
+)
+};
diff --git a/keyboards/smithrune/magnus/m75s/keymaps/via/rules.mk b/keyboards/smithrune/magnus/m75s/keymaps/via/rules.mk
new file mode 100644
index 0000000000..1e5b99807c
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75s/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
diff --git a/keyboards/smithrune/magnus/m75s/mcuconf.h b/keyboards/smithrune/magnus/m75s/mcuconf.h
new file mode 100644
index 0000000000..8f4541a8c3
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75s/mcuconf.h
@@ -0,0 +1,28 @@
+/* Copyright 2023 Gondolindrim
+ *
+ * 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_next <mcuconf.h>
+
+#undef STM32_PWM_USE_ADVANCED
+#define STM32_PWM_USE_ADVANCED TRUE
+
+#undef STM32_PWM_USE_TIM3
+#define STM32_PWM_USE_TIM3 TRUE
+
+#undef STM32_PWM_USE_TIM1
+#define STM32_PWM_USE_TIM1 TRUE
diff --git a/keyboards/smithrune/magnus/m75s/rules.mk b/keyboards/smithrune/magnus/m75s/rules.mk
new file mode 100644
index 0000000000..6e7633bfe0
--- /dev/null
+++ b/keyboards/smithrune/magnus/m75s/rules.mk
@@ -0,0 +1 @@
+# This file intentionally left blank
diff --git a/keyboards/smithrune/magnus/readme.md b/keyboards/smithrune/magnus/readme.md
new file mode 100644
index 0000000000..f8fa005bf3
--- /dev/null
+++ b/keyboards/smithrune/magnus/readme.md
@@ -0,0 +1,35 @@
+# Smith and Rune Magnus
+
+![magnus](https://imgur.com/bemM7ZZh.jpg)
+
+## Introduction
+
+This is the QMK Firmware repository for the Magnus, a keyboard designed by [Smith and Rune](https://smithrune.com/) and PCBs designed by [Gondolindrim](http://github.com/Gondolindrim), who is also the firwmare maintainer.
+
+The Magnus keyboard has two PCB versions: a solderable version (m75s) and a hotswap version (m75h). While M75S has support for a myriad of alternative layouts, including a 7U bottom row and ISO, M75H only supports full and split backspace alternatives. Also, while M75S supports in-switch single-color LEDs and RGB LEDs for underglow light, M75H only supports RGB underglow.
+
+As of July 2023, the Magnus groubuy is already finished.
+
+## How to flash
+
+### Enter bootloader
+
+The DFU state in the bootloader can be accessed in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key, escape in the default keymap) and plug in the keyboard;
+* **Physical reset button**: press the button on the front of the PCB, next to caps lock, for at least five seconds;
+* **Keycode in layout**: Press the key mapped to `QK_BOOT`; in the default layout, that is top left key ('escape') in layer 1.
+
+### How to compile and flash
+
+After checking what PCB you own and setting up your build environment, you can compile the Magnus default keymap by using one of the options below.
+
+    make smithrune/magnus/m75s:default
+    make smithrune/magnus/m75h:default
+
+And use `dfu-util` in the command line or through a GUI like QMK toolbox to upload the firmware to the PCB. To directly flash the PCB after it is put into a DFU state, use:
+
+    make smithrune/magnus/m75s:default:flash
+    make smithrune/magnus/m75h: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).