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diff --git a/keyboards/clueboard/2x1800/2021/max7219.h b/keyboards/clueboard/2x1800/2021/max7219.h
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+/*
+ * Copyright (c) 2021 Zach White <skullydazed@gmail.com>
+ * Copyright (c) 2007 Eberhard Fahle
+ *
+ *    max7219.h - A library for controling Leds with a MAX7219/MAX7221
+ *
+ *    Permission is hereby granted, free of charge, to any person
+ *    obtaining a copy of this software and associated documentation
+ *    files (the "Software"), to deal in the Software without
+ *    restriction, including without limitation the rights to use,
+ *    copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *    copies of the Software, and to permit persons to whom the
+ *    Software is furnished to do so, subject to the following
+ *    conditions:
+ *
+ *    This permission notice shall be included in all copies or
+ *    substantial portions of the Software.
+ *
+ *    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *    OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *    HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *    WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *    OTHER DEALINGS IN THE SOFTWARE.
+ */
+#pragma once
+#include "quantum.h"
+#include "spi_master.h"
+
+// Set defaults if they're not set
+#ifndef MAX7219_LOAD
+#    define MAX7219_LOAD B0
+#endif
+
+#ifndef MAX7219_CONTROLLERS
+#    define MAX7219_CONTROLLERS 4
+#endif
+
+#ifndef MAX7219_LED_INTENSITY
+#    define MAX7219_LED_INTENSITY 1
+#endif
+
+#ifndef MAX7219_SCROLL_TIME
+#    define MAX7219_SCROLL_TIME 100
+#endif
+
+#ifndef MAX7219_BUFFER_MULTIPLIER
+#    define MAX7219_BUFFER_MULTIPLIER 24
+#endif
+
+#if !defined(MAX7219_LED_TEST) && !defined(MAX7219_LED_ITERATE) && !defined(MAX7219_LED_DANCE) && !defined(MAX7219_LED_FONTTEST) && !defined(MAX7219_LED_CLUEBOARD) && !defined(MAX7219_LED_KONAMI) && !defined(MAX7219_LED_QMK_POWERED) && !defined(MAX7219_DRAWING_TOY_MODE) && !defined(MAX7219_LED_CUSTOM)
+#    define MAX7219_QMK_POWERED
+#endif
+
+// Configure our MAX7219's
+#define MAX_BYTES MAX7219_CONTROLLERS * 2
+#define LED_COUNT MAX7219_CONTROLLERS * 64
+#define MAX7219_BUFFER_SIZE MAX7219_CONTROLLERS*MAX7219_BUFFER_MULTIPLIER
+
+// Opcodes for the MAX7219
+#define OP_DECODEMODE  9
+#define OP_INTENSITY   10
+#define OP_SCANLIMIT   11
+#define OP_SHUTDOWN    12
+#define OP_DISPLAYTEST 15
+
+// Datastructures
+extern uint8_t max7219_led_a[8][MAX7219_BUFFER_SIZE];
+extern bool max7219_led_scrolling;
+
+// Functions
+void max7219_write(int device_num, volatile uint8_t opcode, volatile uint8_t data);
+void max7219_write_all(void);
+void max7219_write_frame(void);
+void max7219_clear_display(void);
+void max7219_display_test(int device_num, bool enabled);
+void max7219_init(void);
+void max7219_message_sign(uint8_t message[][6], size_t message_len);
+void max7219_message_sign_task(bool loop_message);
+void max7219_set_decode_mode(int device_num, int mode);
+void max7219_set_intensity(int device_num, int intensity);
+void max7219_set_led(int row, int column, bool state);
+void max7219_set_all_leds(uint8_t led_matrix[LED_COUNT]);
+void max7219_set_scan_limit(int device_num, int limit);
+void max7219_shutdown(int device_num, bool is_in_shutdown);