diff --git a/keyboards/horrortroll/handwired_k552/chconf.h b/keyboards/horrortroll/handwired_k552/board.h
similarity index 68%
rename from keyboards/horrortroll/handwired_k552/chconf.h
rename to keyboards/horrortroll/handwired_k552/board.h
index 4ad4a3be34..edd68f15ae 100644
--- a/keyboards/horrortroll/handwired_k552/chconf.h
+++ b/keyboards/horrortroll/handwired_k552/board.h
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -14,13 +14,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-/*
- * This file was auto-generated by:
- *    `qmk chibios-confmigrate -i keyboards/horrortroll/handwired_k552/chconf.h -r platforms/chibios/common/configs/chconf.h`
- */
+#include_next <board.h>
 
-#pragma once
-
-#define CH_CFG_ST_TIMEDELTA 0
-
-#include_next <chconf.h>
+#undef STM32F103xB
+#define STM32F103xE
diff --git a/keyboards/horrortroll/handwired_k552/boards/k552/board.c b/keyboards/horrortroll/handwired_k552/boards/k552/board.c
deleted file mode 100644
index 65269520ea..0000000000
--- a/keyboards/horrortroll/handwired_k552/boards/k552/board.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
-    ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
-
-    Licensed under the Apache License, Version 2.0 (the "License");
-    you may not use this file except in compliance with the License.
-    You may obtain a copy of the License at
-
-        http://www.apache.org/licenses/LICENSE-2.0
-
-    Unless required by applicable law or agreed to in writing, software
-    distributed under the License is distributed on an "AS IS" BASIS,
-    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-    See the License for the specific language governing permissions and
-    limitations under the License.
-*/
-
-#include <hal.h>
-
-/**
- * @brief   PAL setup.
- * @details Digital I/O ports static configuration as defined in @p board.h.
- *          This variable is used by the HAL when initializing the PAL driver.
- */
-#if HAL_USE_PAL || defined(__DOXYGEN__)
-const PALConfig pal_default_config =
-{
-  {VAL_GPIOAODR, VAL_GPIOACRL, VAL_GPIOACRH},
-  {VAL_GPIOBODR, VAL_GPIOBCRL, VAL_GPIOBCRH},
-  {VAL_GPIOCODR, VAL_GPIOCCRL, VAL_GPIOCCRH},
-  {VAL_GPIODODR, VAL_GPIODCRL, VAL_GPIODCRH},
-};
-#endif
-
-/*
- * Early initialization code.
- * This initialization must be performed just after stack setup and before
- * any other initialization.
- */
-void __early_init(void) {
-  stm32_clock_init();
-  
-}
-
-/*
- * Board-specific initialization code.
- */
-void boardInit(void) {
-
-}
diff --git a/keyboards/horrortroll/handwired_k552/boards/k552/board.h b/keyboards/horrortroll/handwired_k552/boards/k552/board.h
deleted file mode 100644
index f9b38b0caf..0000000000
--- a/keyboards/horrortroll/handwired_k552/boards/k552/board.h
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
-    ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
-
-    Licensed under the Apache License, Version 2.0 (the "License");
-    you may not use this file except in compliance with the License.
-    You may obtain a copy of the License at
-
-        http://www.apache.org/licenses/LICENSE-2.0
-
-    Unless required by applicable law or agreed to in writing, software
-    distributed under the License is distributed on an "AS IS" BASIS,
-    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-    See the License for the specific language governing permissions and
-    limitations under the License.
-*/
-
-#ifndef _BOARD_H_
-#define _BOARD_H_
-
-/*
- * Board identifier.
- */
-#define BOARD_K552
-#define BOARD_NAME              "K552 keyboard"
-
-/*
- * Board frequencies.
- */
-#define STM32_LSECLK            32768
-#define STM32_HSECLK            8000000
-
-/*
- * MCU type, supported types are defined in ./os/hal/platforms/hal_lld.h.
- *
- * Only xC (256KB Flash) is defined, but it's identical to the
- * x8 version (64KB Flash) except for the Flash region size in the
- * linker script. For x8 parts use xC here and change to the x8 linker
- * script in the project Makefile.
- */
-#pragma once
-#include_next <board.h>
-#undef STM32F103xB
-#define STM32F103xE
-
-/*
- * IO pins assignments
- *
- * numbering is sorted by onboard/connectors, as from the schematics in
- * http://www.vcc-gnd.com/read.php?tid=369
- */
-
-/* on-board */
-#define GPIOA_USBDM             11      // pin 8
-#define GPIOA_USBDP             12      // pin 9
-
-#define GPIOC_OSC32_IN          14
-#define GPIOC_OSC32_OUT         15
-
-/*
- * I/O ports initial setup, this configuration is established soon after reset
- * in the initialization code.
- *
- * The digits have the following meaning:
- *   0 - Analog input.
- *   1 - Push Pull output 10MHz.
- *   2 - Push Pull output 2MHz.
- *   3 - Push Pull output 50MHz.
- *   4 - Digital input.
- *   5 - Open Drain output 10MHz.
- *   6 - Open Drain output 2MHz.
- *   7 - Open Drain output 50MHz.
- *   8 - Digital input with PullUp or PullDown resistor depending on ODR.
- *   9 - Alternate Push Pull output 10MHz.
- *   A - Alternate Push Pull output 2MHz.
- *   B - Alternate Push Pull output 50MHz.
- *   C - Reserved.
- *   D - Alternate Open Drain output 10MHz.
- *   E - Alternate Open Drain output 2MHz.
- *   F - Alternate Open Drain output 50MHz.
- * Please refer to the STM32 Reference Manual for details.
- */
-
-/*
- * Port A setup.
- * Everything input with pull-up except:
- */
-#define VAL_GPIOACRL            0x88888888      /*  PA7...PA0 */
-#define VAL_GPIOACRH            0x88888888      /* PA15...PA8 */
-#define VAL_GPIOAODR            0xFFFFFFFF
-
-/*
- * Port B setup.
- * Everything input with pull-up except:
- */
-#define VAL_GPIOBCRL            0x88888888      /*  PB7...PB0 */
-#define VAL_GPIOBCRH            0x88888888      /* PB15...PB8 */
-#define VAL_GPIOBODR            0xFFFFFFFF
-
-/*
- * Port C setup.
- * Everything input with pull-up except:
- */
-#define VAL_GPIOCCRL            0x88888888      /*  PC7...PC0 */
-#define VAL_GPIOCCRH            0x88888888      /* PC15...PC8 */
-#define VAL_GPIOCODR            0xFFFFFFFF
-
-/*
- * Port D setup.
- * Everything input with pull-up except:
- * PD0  - Normal input (XTAL).
- * PD1  - Normal input (XTAL).
- */
-#define VAL_GPIODCRL            0x88888844      /*  PD7...PD0 */
-#define VAL_GPIODCRH            0x88888888      /* PD15...PD8 */
-#define VAL_GPIODODR            0xFFFFFFFF
-
-/*
- * Port E setup.
- * Everything input with pull-up except:
- */
-#define VAL_GPIOECRL            0x88888888      /*  PE7...PE0 */
-#define VAL_GPIOECRH            0x88888888      /* PE15...PE8 */
-#define VAL_GPIOEODR            0xFFFFFFFF
-
-/*
- * USB bus activation macro, required by the USB driver.
- */
-#define usb_lld_connect_bus(usbp)	/* always connected */
-
-/*
- * USB bus de-activation macro, required by the USB driver.
- */
-#define usb_lld_disconnect_bus(usbp)	/* always connected */
-
-#if !defined(_FROM_ASM_)
-#ifdef __cplusplus
-extern "C" {
-#endif
-  void boardInit(void);
-#ifdef __cplusplus
-}
-#endif
-#endif /* _FROM_ASM_ */
-
-#endif /* _BOARD_H_ */
diff --git a/keyboards/horrortroll/handwired_k552/boards/k552/board.mk b/keyboards/horrortroll/handwired_k552/boards/k552/board.mk
deleted file mode 100644
index 15831c4f15..0000000000
--- a/keyboards/horrortroll/handwired_k552/boards/k552/board.mk
+++ /dev/null
@@ -1,5 +0,0 @@
-# List of all the board related files.
-BOARDSRC = $(BOARD_PATH)/boards/k552/board.c
-
-# Required include directories
-BOARDINC = $(BOARD_PATH)/boards/k552
diff --git a/keyboards/horrortroll/handwired_k552/config.h b/keyboards/horrortroll/handwired_k552/config.h
index b26e7489a6..8633bb603f 100644
--- a/keyboards/horrortroll/handwired_k552/config.h
+++ b/keyboards/horrortroll/handwired_k552/config.h
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -22,9 +22,9 @@
 #define MATRIX_ROWS 6
 #define MATRIX_COLS 17
 
-/* key matrix pins */
+/* Key matrix pins */
 #define MATRIX_ROW_PINS { C12, C10, A10, A8, C8, C9 }
-#define MATRIX_COL_PINS { B15,  C6,  C7, A3, A1, C3, C1, B14, B13, A9, B3, B4, A0, C11, A2, C0, C2 }
+#define MATRIX_COL_PINS { B15,  C6,  C7, A3, A1, C3, C1, B14, B13, A9, B3, B4, A0, C11, C4, C0, C2 }
 
 /* COL2ROW or ROW2COL */
 #define DIODE_DIRECTION ROW2COL
@@ -33,23 +33,29 @@
 #define DEBOUNCE 5
 
 /* Bootmagic reset */
-#define BOOTMAGIC_LITE_ROW 4
-#define BOOTMAGIC_LITE_COLUMN 6
+#define BOOTMAGIC_LITE_ROW 0
+#define BOOTMAGIC_LITE_COLUMN 0
 
 /* Forcing to use NKRO instead 6KRO */
 #define FORCE_NKRO
 
-/* EEPROM size */
-#define EEPROM_PAGE_SIZE
-#define FEE_PAGE_SIZE 0x800
-#define FEE_PAGE_COUNT 4
+// SPI configuration
+#define SPI_DRIVER SPID1
+#define SPI_SCK_PIN A5
+#define SPI_MOSI_PIN A7
+#define SPI_MISO_PIN A6
 
-#define FEE_MCU_FLASH_SIZE_IGNORE_CHECK
-#define FEE_MCU_FLASH_SIZE                              \
-({                                                      \
-    uint16_t flash_size = *(uint16_t*)FLASHSIZE_BASE;   \
-    (flash_size <= 512) ? flash_size : 512;             \
-})
+// Flash configuration
+#define EXTERNAL_FLASH_SPI_SLAVE_SELECT_PIN A2
+#define EXTERNAL_FLASH_SPI_CLOCK_DIVISOR 16
+#define EXTERNAL_FLASH_PAGE_SIZE 256
+#define EXTERNAL_FLASH_SECTOR_SIZE 4096
+#define EXTERNAL_FLASH_BLOCK_SIZE 4096
+#define EXTERNAL_FLASH_SIZE (256 * 1024) // 2M-bit flash size
+
+// Wear-leveling driver configuration
+#define WEAR_LEVELING_LOGICAL_SIZE 1024
+#define WEAR_LEVELING_BACKING_SIZE (WEAR_LEVELING_LOGICAL_SIZE * 2)
 
 #ifdef OLED_ENABLE
     /* Mapping I2C2 for OLED */
diff --git a/keyboards/horrortroll/handwired_k552/halconf.h b/keyboards/horrortroll/handwired_k552/halconf.h
index 2ef68f8fb2..a8be303915 100644
--- a/keyboards/horrortroll/handwired_k552/halconf.h
+++ b/keyboards/horrortroll/handwired_k552/halconf.h
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -23,4 +23,8 @@
 
 #define HAL_USE_I2C TRUE
 
+#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/horrortroll/handwired_k552/handwired_k552.c b/keyboards/horrortroll/handwired_k552/handwired_k552.c
index 03bbad461f..f4ce6d4c86 100644
--- a/keyboards/horrortroll/handwired_k552/handwired_k552.c
+++ b/keyboards/horrortroll/handwired_k552/handwired_k552.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -17,7 +17,7 @@
 #include "handwired_k552.h"
 
 // OLED animation
-#include "lib/logo.c"
+#include "lib/logo.h"
 
 #ifdef RGB_MATRIX_ENABLE
 led_config_t g_led_config = { {
diff --git a/keyboards/horrortroll/handwired_k552/handwired_k552.h b/keyboards/horrortroll/handwired_k552/handwired_k552.h
index 2a537714e3..7811c0e82e 100644
--- a/keyboards/horrortroll/handwired_k552/handwired_k552.h
+++ b/keyboards/horrortroll/handwired_k552/handwired_k552.h
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/keymap.c b/keyboards/horrortroll/handwired_k552/keymaps/default/keymap.c
index 6e06466d22..3208b56544 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/default/keymap.c
+++ b/keyboards/horrortroll/handwired_k552/keymaps/default/keymap.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -88,7 +88,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 */
     /*  Row:    0        1        2        3        4        5        6        7        8        9        10       11       12       13       14       15        16     */
     [_FN]   = LAYOUT_tkl_ansi(
-                QK_BOOT,   KC_MSEL, KC_VOLD, KC_VOLU, KC_MUTE, KC_MSTP, KC_MPRV, KC_MPLY, KC_MNXT, KC_MAIL, KC_WHOM, KC_CALC, KC_WSCH,          RGB_RMOD, RGB_MOD, RGB_TOG,
+                QK_BOOT, KC_MSEL, KC_VOLD, KC_VOLU, KC_MUTE, KC_MSTP, KC_MPRV, KC_MPLY, KC_MNXT, KC_MAIL, KC_WHOM, KC_CALC, KC_WSCH,          RGB_RMOD, RGB_MOD, RGB_TOG,
                 NK_TOGG, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_SPD, RGB_SPI, _______, RGB_C_E,  _______, _______,
                 _______, G1_HUD,  G1_HUI,  G1_SAD,  G1_SAI,  G1_VAD,  G1_VAI,  _______, _______, _______, _______, _______, _______, _______, _______,  _______, TG(_WAVE),
                 _______, G2_HUD,  G2_HUI,  G2_SAD,  G2_SAI,  G2_VAD,  G2_VAI,  _______, _______, _______, _______, _______,          _______,
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/keymap_stuff.h b/keyboards/horrortroll/handwired_k552/keymaps/default/keymap_stuff.h
index 5d854b9396..cc93f18207 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/default/keymap_stuff.h
+++ b/keyboards/horrortroll/handwired_k552/keymaps/default/keymap_stuff.h
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -27,9 +27,9 @@
 // entirely and just use numbers.
 
 enum layer_names {
-    _BASE = 0,
-    _WAVE = 1,
-    _FN = 2
+    _BASE,
+    _WAVE,
+    _FN,
 };
 
 // For CUSTOM_GRADIENT
@@ -212,12 +212,12 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
             if (record->event.pressed) {
                 switch (rgb_matrix_get_mode()) {
                     case RGB_MATRIX_CUSTOM_CUSTOM_GRADIENT:
-                        rgb_matrix_mode(RGB_MATRIX_CUSTOM_DIAGONAL);
-                        return false;
-                    case RGB_MATRIX_CUSTOM_DIAGONAL:
                         rgb_matrix_mode(RGB_MATRIX_CUSTOM_COOL_DIAGONAL);
                         return false;
                     case RGB_MATRIX_CUSTOM_COOL_DIAGONAL:
+                        rgb_matrix_mode(RGB_MATRIX_CUSTOM_FLOWER_BLOOMING);
+                        return false;
+                    case RGB_MATRIX_CUSTOM_FLOWER_BLOOMING:
                         rgb_matrix_mode(RGB_MATRIX_CUSTOM_KITT);
                         return false;
                     case RGB_MATRIX_CUSTOM_KITT:
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/led/cool_diagonal.c b/keyboards/horrortroll/handwired_k552/keymaps/default/led/cool_diagonal.c
index 2c518a5431..a5bf960d45 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/default/led/cool_diagonal.c
+++ b/keyboards/horrortroll/handwired_k552/keymaps/default/led/cool_diagonal.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/led/custom_gradient.c b/keyboards/horrortroll/handwired_k552/keymaps/default/led/custom_gradient.c
index 0d7acd7e8b..af6173d250 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/default/led/custom_gradient.c
+++ b/keyboards/horrortroll/handwired_k552/keymaps/default/led/custom_gradient.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/led/flower_blooming/flower_blooming.c b/keyboards/horrortroll/handwired_k552/keymaps/default/led/flower_blooming/flower_blooming.c
new file mode 100644
index 0000000000..add83149cc
--- /dev/null
+++ b/keyboards/horrortroll/handwired_k552/keymaps/default/led/flower_blooming/flower_blooming.c
@@ -0,0 +1,27 @@
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * 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 "led/flower_blooming/flower_blooming.h"
+
+static HSV FLOWER_BLOOMING_math(HSV hsv, uint8_t i, uint8_t time) {
+    if (g_led_config.point[i].y > k_rgb_matrix_center.y)
+        hsv.h = g_led_config.point[i].x * 3 - g_led_config.point[i].y * 3 + time;
+    else
+        hsv.h = g_led_config.point[i].x * 3 - g_led_config.point[i].y * 3 - time;
+    return hsv;
+}
+
+bool FLOWER_BLOOMING(effect_params_t* params) { return effect_runner_bloom(params, &FLOWER_BLOOMING_math); }
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/led/flower_blooming/flower_blooming.h b/keyboards/horrortroll/handwired_k552/keymaps/default/led/flower_blooming/flower_blooming.h
new file mode 100644
index 0000000000..941dab975a
--- /dev/null
+++ b/keyboards/horrortroll/handwired_k552/keymaps/default/led/flower_blooming/flower_blooming.h
@@ -0,0 +1,20 @@
+#pragma once
+
+typedef HSV (*flower_blooming_f)(HSV hsv, uint8_t i, uint8_t time);
+
+bool effect_runner_bloom(effect_params_t* params, flower_blooming_f effect_func) {
+    RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+    uint8_t time = scale16by8(g_rgb_timer, qadd8(rgb_matrix_config.speed / 10, 1));
+    for (uint8_t i = led_min; i < led_max; i++) {
+        RGB_MATRIX_TEST_LED_FLAGS();
+        if (g_led_config.point[i].y > k_rgb_matrix_center.y) {
+            RGB bgr = rgb_matrix_hsv_to_rgb(effect_func(rgb_matrix_config.hsv, i, time));
+            rgb_matrix_set_color(i, bgr.b, bgr.g, bgr.r);
+        } else {
+            RGB rgb = rgb_matrix_hsv_to_rgb(effect_func(rgb_matrix_config.hsv, i, time));
+            rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+        }
+    }
+    return rgb_matrix_check_finished_leds(led_max);
+}
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/led/kitt.c b/keyboards/horrortroll/handwired_k552/keymaps/default/led/kitt.c
index 823eb5839b..dadbe48223 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/default/led/kitt.c
+++ b/keyboards/horrortroll/handwired_k552/keymaps/default/led/kitt.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/led/random_breath_rainbow.c b/keyboards/horrortroll/handwired_k552/keymaps/default/led/random_breath_rainbow.c
index 29c447c61a..ba1ca55faf 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/default/led/random_breath_rainbow.c
+++ b/keyboards/horrortroll/handwired_k552/keymaps/default/led/random_breath_rainbow.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/oled/oled_stuff.h b/keyboards/horrortroll/handwired_k552/keymaps/default/oled/oled_stuff.h
index 9d8d629179..1160c7ab44 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/default/oled/oled_stuff.h
+++ b/keyboards/horrortroll/handwired_k552/keymaps/default/oled/oled_stuff.h
@@ -15,8 +15,8 @@
  */
 
 // OLED animation
-#include "lib/bongocat.c"
-#include "lib/galaxy.c"
+#include "lib/bongocat.h"
+#include "lib/galaxy.h"
 #include "lib/wave.c"
 
 #ifdef OLED_ENABLE
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/readme.md b/keyboards/horrortroll/handwired_k552/keymaps/default/readme.md
index c8f9c1f8ec..546581ab28 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/default/readme.md
+++ b/keyboards/horrortroll/handwired_k552/keymaps/default/readme.md
@@ -4,7 +4,7 @@ Keymap is default 87 qwerty, TKL layout
 
 It have new LED effect:
 - Custom gradient (ported from SirTimmyTimbit code [https://github.com/SirTimmyTimbit/customizable-gradient-effect-for-drop-alt])
-- Diagonal (ported from pleasuretek code [https://github.com/pleasuretek/qmk_firmware])
+- FLower Blooming
 - Cool diagonal (ported from pleasuretek code [https://github.com/pleasuretek/qmk_firmware])
 - Knight Rider (ported from jumper149 code [https://github.com/jumper149/qmk_firmware/blob/jumper149/keyboards/dztech/dz65rgb/keymaps/jumper149/])
 - Random breath rainbow (based from daed code [https://github.com/daed/qmk_firmware/blob/master/keyboards/massdrop/alt/keymaps/daed] and modify by me)
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/rgb_matrix_user.inc b/keyboards/horrortroll/handwired_k552/keymaps/default/rgb_matrix_user.inc
index 38edbae993..1817465030 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/default/rgb_matrix_user.inc
+++ b/keyboards/horrortroll/handwired_k552/keymaps/default/rgb_matrix_user.inc
@@ -1,14 +1,14 @@
 RGB_MATRIX_EFFECT(CUSTOM_GRADIENT)
-RGB_MATRIX_EFFECT(DIAGONAL)
 RGB_MATRIX_EFFECT(COOL_DIAGONAL)
+RGB_MATRIX_EFFECT(FLOWER_BLOOMING)
 RGB_MATRIX_EFFECT(KITT)
 RGB_MATRIX_EFFECT(RANDOM_BREATH_RAINBOW)
 
 #ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
 
 #include "led/custom_gradient.c"
-#include "led/diagonal.c"
 #include "led/cool_diagonal.c"
+#include "led/flower_blooming/flower_blooming.c"
 #include "led/kitt.c"
 #include "led/random_breath_rainbow.c"
 
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/rules.mk b/keyboards/horrortroll/handwired_k552/keymaps/default/rules.mk
index 6245023e80..45aa4a911d 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/default/rules.mk
+++ b/keyboards/horrortroll/handwired_k552/keymaps/default/rules.mk
@@ -1 +1,4 @@
+SRC += lib/bongocat.c
+SRC += lib/galaxy.c
+
 RGB_MATRIX_CUSTOM_USER = yes
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/config.h b/keyboards/horrortroll/handwired_k552/keymaps/via/config.h
index a36ce468bc..07730f01ff 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/via/config.h
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/config.h
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/keymap.c b/keyboards/horrortroll/handwired_k552/keymaps/via/keymap.c
index 6e06466d22..3208b56544 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/via/keymap.c
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/keymap.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -88,7 +88,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 */
     /*  Row:    0        1        2        3        4        5        6        7        8        9        10       11       12       13       14       15        16     */
     [_FN]   = LAYOUT_tkl_ansi(
-                QK_BOOT,   KC_MSEL, KC_VOLD, KC_VOLU, KC_MUTE, KC_MSTP, KC_MPRV, KC_MPLY, KC_MNXT, KC_MAIL, KC_WHOM, KC_CALC, KC_WSCH,          RGB_RMOD, RGB_MOD, RGB_TOG,
+                QK_BOOT, KC_MSEL, KC_VOLD, KC_VOLU, KC_MUTE, KC_MSTP, KC_MPRV, KC_MPLY, KC_MNXT, KC_MAIL, KC_WHOM, KC_CALC, KC_WSCH,          RGB_RMOD, RGB_MOD, RGB_TOG,
                 NK_TOGG, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_SPD, RGB_SPI, _______, RGB_C_E,  _______, _______,
                 _______, G1_HUD,  G1_HUI,  G1_SAD,  G1_SAI,  G1_VAD,  G1_VAI,  _______, _______, _______, _______, _______, _______, _______, _______,  _______, TG(_WAVE),
                 _______, G2_HUD,  G2_HUI,  G2_SAD,  G2_SAI,  G2_VAD,  G2_VAI,  _______, _______, _______, _______, _______,          _______,
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/keymap_stuff.h b/keyboards/horrortroll/handwired_k552/keymaps/via/keymap_stuff.h
index 5d854b9396..cc93f18207 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/via/keymap_stuff.h
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/keymap_stuff.h
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -27,9 +27,9 @@
 // entirely and just use numbers.
 
 enum layer_names {
-    _BASE = 0,
-    _WAVE = 1,
-    _FN = 2
+    _BASE,
+    _WAVE,
+    _FN,
 };
 
 // For CUSTOM_GRADIENT
@@ -212,12 +212,12 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
             if (record->event.pressed) {
                 switch (rgb_matrix_get_mode()) {
                     case RGB_MATRIX_CUSTOM_CUSTOM_GRADIENT:
-                        rgb_matrix_mode(RGB_MATRIX_CUSTOM_DIAGONAL);
-                        return false;
-                    case RGB_MATRIX_CUSTOM_DIAGONAL:
                         rgb_matrix_mode(RGB_MATRIX_CUSTOM_COOL_DIAGONAL);
                         return false;
                     case RGB_MATRIX_CUSTOM_COOL_DIAGONAL:
+                        rgb_matrix_mode(RGB_MATRIX_CUSTOM_FLOWER_BLOOMING);
+                        return false;
+                    case RGB_MATRIX_CUSTOM_FLOWER_BLOOMING:
                         rgb_matrix_mode(RGB_MATRIX_CUSTOM_KITT);
                         return false;
                     case RGB_MATRIX_CUSTOM_KITT:
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/led/cool_diagonal.c b/keyboards/horrortroll/handwired_k552/keymaps/via/led/cool_diagonal.c
index 2c518a5431..a5bf960d45 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/via/led/cool_diagonal.c
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/led/cool_diagonal.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/led/custom_gradient.c b/keyboards/horrortroll/handwired_k552/keymaps/via/led/custom_gradient.c
index 0d7acd7e8b..af6173d250 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/via/led/custom_gradient.c
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/led/custom_gradient.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/led/flower_blooming/flower_blooming.c b/keyboards/horrortroll/handwired_k552/keymaps/via/led/flower_blooming/flower_blooming.c
new file mode 100644
index 0000000000..add83149cc
--- /dev/null
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/led/flower_blooming/flower_blooming.c
@@ -0,0 +1,27 @@
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * 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 "led/flower_blooming/flower_blooming.h"
+
+static HSV FLOWER_BLOOMING_math(HSV hsv, uint8_t i, uint8_t time) {
+    if (g_led_config.point[i].y > k_rgb_matrix_center.y)
+        hsv.h = g_led_config.point[i].x * 3 - g_led_config.point[i].y * 3 + time;
+    else
+        hsv.h = g_led_config.point[i].x * 3 - g_led_config.point[i].y * 3 - time;
+    return hsv;
+}
+
+bool FLOWER_BLOOMING(effect_params_t* params) { return effect_runner_bloom(params, &FLOWER_BLOOMING_math); }
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/led/flower_blooming/flower_blooming.h b/keyboards/horrortroll/handwired_k552/keymaps/via/led/flower_blooming/flower_blooming.h
new file mode 100644
index 0000000000..941dab975a
--- /dev/null
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/led/flower_blooming/flower_blooming.h
@@ -0,0 +1,20 @@
+#pragma once
+
+typedef HSV (*flower_blooming_f)(HSV hsv, uint8_t i, uint8_t time);
+
+bool effect_runner_bloom(effect_params_t* params, flower_blooming_f effect_func) {
+    RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+    uint8_t time = scale16by8(g_rgb_timer, qadd8(rgb_matrix_config.speed / 10, 1));
+    for (uint8_t i = led_min; i < led_max; i++) {
+        RGB_MATRIX_TEST_LED_FLAGS();
+        if (g_led_config.point[i].y > k_rgb_matrix_center.y) {
+            RGB bgr = rgb_matrix_hsv_to_rgb(effect_func(rgb_matrix_config.hsv, i, time));
+            rgb_matrix_set_color(i, bgr.b, bgr.g, bgr.r);
+        } else {
+            RGB rgb = rgb_matrix_hsv_to_rgb(effect_func(rgb_matrix_config.hsv, i, time));
+            rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+        }
+    }
+    return rgb_matrix_check_finished_leds(led_max);
+}
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/led/kitt.c b/keyboards/horrortroll/handwired_k552/keymaps/via/led/kitt.c
index 823eb5839b..dadbe48223 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/via/led/kitt.c
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/led/kitt.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/led/random_breath_rainbow.c b/keyboards/horrortroll/handwired_k552/keymaps/via/led/random_breath_rainbow.c
index 29c447c61a..ba1ca55faf 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/via/led/random_breath_rainbow.c
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/led/random_breath_rainbow.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/oled/oled_stuff.h b/keyboards/horrortroll/handwired_k552/keymaps/via/oled/oled_stuff.h
index 9d8d629179..ea098bf555 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/via/oled/oled_stuff.h
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/oled/oled_stuff.h
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -15,8 +15,8 @@
  */
 
 // OLED animation
-#include "lib/bongocat.c"
-#include "lib/galaxy.c"
+#include "lib/bongocat.h"
+#include "lib/galaxy.h"
 #include "lib/wave.c"
 
 #ifdef OLED_ENABLE
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/readme.md b/keyboards/horrortroll/handwired_k552/keymaps/via/readme.md
index c8f9c1f8ec..546581ab28 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/via/readme.md
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/readme.md
@@ -4,7 +4,7 @@ Keymap is default 87 qwerty, TKL layout
 
 It have new LED effect:
 - Custom gradient (ported from SirTimmyTimbit code [https://github.com/SirTimmyTimbit/customizable-gradient-effect-for-drop-alt])
-- Diagonal (ported from pleasuretek code [https://github.com/pleasuretek/qmk_firmware])
+- FLower Blooming
 - Cool diagonal (ported from pleasuretek code [https://github.com/pleasuretek/qmk_firmware])
 - Knight Rider (ported from jumper149 code [https://github.com/jumper149/qmk_firmware/blob/jumper149/keyboards/dztech/dz65rgb/keymaps/jumper149/])
 - Random breath rainbow (based from daed code [https://github.com/daed/qmk_firmware/blob/master/keyboards/massdrop/alt/keymaps/daed] and modify by me)
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/rgb_matrix_user.inc b/keyboards/horrortroll/handwired_k552/keymaps/via/rgb_matrix_user.inc
index 38edbae993..1817465030 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/via/rgb_matrix_user.inc
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/rgb_matrix_user.inc
@@ -1,14 +1,14 @@
 RGB_MATRIX_EFFECT(CUSTOM_GRADIENT)
-RGB_MATRIX_EFFECT(DIAGONAL)
 RGB_MATRIX_EFFECT(COOL_DIAGONAL)
+RGB_MATRIX_EFFECT(FLOWER_BLOOMING)
 RGB_MATRIX_EFFECT(KITT)
 RGB_MATRIX_EFFECT(RANDOM_BREATH_RAINBOW)
 
 #ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
 
 #include "led/custom_gradient.c"
-#include "led/diagonal.c"
 #include "led/cool_diagonal.c"
+#include "led/flower_blooming/flower_blooming.c"
 #include "led/kitt.c"
 #include "led/random_breath_rainbow.c"
 
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/rules.mk b/keyboards/horrortroll/handwired_k552/keymaps/via/rules.mk
index d475530c87..db9ec2aee1 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/via/rules.mk
+++ b/keyboards/horrortroll/handwired_k552/keymaps/via/rules.mk
@@ -1,3 +1,6 @@
+SRC += lib/bongocat.c
+SRC += lib/galaxy.c
+
 VIA_ENABLE = yes
 
 RGB_MATRIX_CUSTOM_USER = yes
diff --git a/keyboards/horrortroll/handwired_k552/lib/bongocat.c b/keyboards/horrortroll/handwired_k552/lib/bongocat.c
index fbde9c911a..6510223b22 100644
--- a/keyboards/horrortroll/handwired_k552/lib/bongocat.c
+++ b/keyboards/horrortroll/handwired_k552/lib/bongocat.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -14,6 +14,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "quantum.h"
+
 // WPM-responsive animation stuff here
 # define IDLE_FRAMES 5
 # define IDLE_SPEED 10  // below this wpm value your animation will idle
@@ -43,7 +45,7 @@ uint8_t current_tap_frame = 0;
 // follow this guide up to and including "CONVERT YOUR IMAGE" https://docs.splitkb.com/hc/en-us/articles/360013811280-How-do-I-convert-an-image-for-use-on-an-OLED-display-
 // replace numbers in brackets with your own
 // if you start getting errors when compiling make sure you didn't accedentally delete a bracket
-static void render_bongocat(void) {
+void render_bongocat(void) {
     static const char PROGMEM idle[IDLE_FRAMES][ANIM_SIZE] = {
         {
         //Idle 1 - 128x32
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/default/led/diagonal.c b/keyboards/horrortroll/handwired_k552/lib/bongocat.h
similarity index 68%
rename from keyboards/horrortroll/handwired_k552/keymaps/default/led/diagonal.c
rename to keyboards/horrortroll/handwired_k552/lib/bongocat.h
index 19e3791bd6..65ceabc682 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/default/led/diagonal.c
+++ b/keyboards/horrortroll/handwired_k552/lib/bongocat.h
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -14,9 +14,4 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-static HSV DIAGONAL_math(HSV hsv, uint8_t i, uint8_t time) {
-    hsv.h = g_led_config.point[i].x - g_led_config.point[i].y - time;
-    return hsv;
-}
-
-bool DIAGONAL(effect_params_t* params) { return effect_runner_i(params, &DIAGONAL_math); }
+void render_bongocat(void);
diff --git a/keyboards/horrortroll/handwired_k552/lib/galaxy.c b/keyboards/horrortroll/handwired_k552/lib/galaxy.c
index 5cc340dded..04885b8085 100644
--- a/keyboards/horrortroll/handwired_k552/lib/galaxy.c
+++ b/keyboards/horrortroll/handwired_k552/lib/galaxy.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -14,9 +14,11 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "quantum.h"
+
 # define ANIM_SIZE 636  // number of bytes in array, minimize for adequate firmware size, max is 1024
 
-static void render_galaxy(void) {
+void render_galaxy(void) {
     static const char PROGMEM galaxy[][ANIM_SIZE] = {
         {
         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x80, 0xc8, 0xe8, 0x49, 0x72,
diff --git a/keyboards/horrortroll/handwired_k552/keymaps/via/led/diagonal.c b/keyboards/horrortroll/handwired_k552/lib/galaxy.h
similarity index 68%
rename from keyboards/horrortroll/handwired_k552/keymaps/via/led/diagonal.c
rename to keyboards/horrortroll/handwired_k552/lib/galaxy.h
index 19e3791bd6..54ce2ad90a 100644
--- a/keyboards/horrortroll/handwired_k552/keymaps/via/led/diagonal.c
+++ b/keyboards/horrortroll/handwired_k552/lib/galaxy.h
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -14,9 +14,4 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-static HSV DIAGONAL_math(HSV hsv, uint8_t i, uint8_t time) {
-    hsv.h = g_led_config.point[i].x - g_led_config.point[i].y - time;
-    return hsv;
-}
-
-bool DIAGONAL(effect_params_t* params) { return effect_runner_i(params, &DIAGONAL_math); }
+void render_galaxy(void);
diff --git a/keyboards/horrortroll/handwired_k552/lib/glcdfont.c b/keyboards/horrortroll/handwired_k552/lib/glcdfont.c
index 23bfd92d72..7e7ca17e21 100644
--- a/keyboards/horrortroll/handwired_k552/lib/glcdfont.c
+++ b/keyboards/horrortroll/handwired_k552/lib/glcdfont.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
diff --git a/keyboards/horrortroll/handwired_k552/lib/logo.c b/keyboards/horrortroll/handwired_k552/lib/logo.c
index 2e05555af2..3931fdf455 100644
--- a/keyboards/horrortroll/handwired_k552/lib/logo.c
+++ b/keyboards/horrortroll/handwired_k552/lib/logo.c
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -14,9 +14,11 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "quantum.h"
+
 # define ANIM_SIZE 636  // number of bytes in array, minimize for adequate firmware size, max is 1024
 
-static void render_logo(void) {
+void render_logo(void) {
     static const char PROGMEM redragon[][ANIM_SIZE] = {
         {
         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xc0, 0xc0, 0xc0, 0x80,
diff --git a/keyboards/horrortroll/handwired_k552/lib/logo.h b/keyboards/horrortroll/handwired_k552/lib/logo.h
new file mode 100644
index 0000000000..5a917ae820
--- /dev/null
+++ b/keyboards/horrortroll/handwired_k552/lib/logo.h
@@ -0,0 +1,17 @@
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
+ *
+ * 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/>.
+ */
+
+void render_logo(void);
diff --git a/keyboards/horrortroll/handwired_k552/mcuconf.h b/keyboards/horrortroll/handwired_k552/mcuconf.h
index c9970fa28b..88bd6f4846 100644
--- a/keyboards/horrortroll/handwired_k552/mcuconf.h
+++ b/keyboards/horrortroll/handwired_k552/mcuconf.h
@@ -1,4 +1,4 @@
-/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
+/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
  *
  * 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
@@ -25,3 +25,9 @@
 
 #undef STM32_I2C_USE_I2C2
 #define STM32_I2C_USE_I2C2 TRUE
+
+#undef STM32_SPI_USE_SPI1
+#define STM32_SPI_USE_SPI1 TRUE
+
+#undef STM32_SPI_USE_SPI2
+#define STM32_SPI_USE_SPI2 FALSE
\ No newline at end of file
diff --git a/keyboards/horrortroll/handwired_k552/readme.md b/keyboards/horrortroll/handwired_k552/readme.md
index e45cab9f9c..f92fe22ca8 100644
--- a/keyboards/horrortroll/handwired_k552/readme.md
+++ b/keyboards/horrortroll/handwired_k552/readme.md
@@ -17,6 +17,6 @@ See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_to
 
 Enter the bootloader in 3 ways:
 
-* **Bootmagic reset**: Hold down the key at (4,6) in the matrix (B key) and plug in the keyboard
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (B key) and plug in the keyboard
 * **Physical reset button**: Briefly press the button on the back of the PCB
 * **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available
diff --git a/keyboards/horrortroll/handwired_k552/rules.mk b/keyboards/horrortroll/handwired_k552/rules.mk
index f29c92f64c..9a91a7a379 100644
--- a/keyboards/horrortroll/handwired_k552/rules.mk
+++ b/keyboards/horrortroll/handwired_k552/rules.mk
@@ -1,11 +1,17 @@
+SRC += lib/logo.c
+
 # MCU name
 MCU = STM32F103
 
-MCU_LDSCRIPT = k552_f103
-BOARD = k552
-
 # Bootloader selection
-BOOTLOADER = stm32duino
+# Cannot use `BOOTLOADER = stm32duino` due to the need to override
+# `MCU_LDSCRIPT`, therefore all parameters need to be specified here manually.
+OPT_DEFS += -DBOOTLOADER_STM32DUINO
+MCU_LDSCRIPT = STM32F103xC_stm32duino_bootloader
+BOARD = STM32_F103_STM32DUINO
+BOOTLOADER_TYPE = stm32duino
+DFU_ARGS = -d 1EAF:0003 -a 2 -R
+DFU_SUFFIX_ARGS = -v 1EAF -p 0003
 
 # Build Options
 #   change yes to no to disable
@@ -19,8 +25,9 @@ NKRO_ENABLE = yes           # Enable N-Key Rollover
 BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
 RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
 AUDIO_ENABLE = no           # Audio output
-NO_USB_STARTUP_CHECK = yes
-LTO_ENABLE = yes
+
+# Enter lower-power sleep mode when on the ChibiOS idle thread
+OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE
 
 # RGB Matrix enabled
 RGB_MATRIX_ENABLE = yes
@@ -31,4 +38,8 @@ OLED_ENABLE = yes
 OLED_DRIVER = SSD1306
 WPM_ENABLE = yes
 
+# Wear-levelling driver
+EEPROM_DRIVER = wear_leveling
+WEAR_LEVELING_DRIVER = spi_flash
+
 LAYOUTS = tkl_ansi