Newbie trying to port project

Hello I'm looking for help porting this project into a RPI4 project while implement a few functions missing due to low processing power in STM32F746G DISCOVERY board. The function that i noticed missing is: Master-Tempo Link rekordbox https://github.com/angusmack/CDJ-1000Mk3-MCU-Mod https://github.com/angusmack/CDJ-1000mk3_new_life_project Can anyone point me the right direction? I have minimal coding experience related to esp8266 for iot.

I Will Share the discord Chanel ive created. I found a easyer way to achieve what i want. Basicly a spi midi converter on Arduino and all the routines Will be inside a raspberrypi4 with MIXXX with a Pioneer cdj2000nsx2 skin.

I'm not offering to help, I'm just informing you of how large of an effort this'll be