Arduino to PlatformIO Migration for M5Stack

I have an existing Arduino sketch that communicates on Wifi, controls a pump relay and various other similar functions. The project is designed around the M5Stack CoreS3-SE, with a DIN base to provide connector functionality... (Budget: £50 - £100 GBP, Jobs: Arduino, C Programming, Debugging, Embedded Systems, Microcontroller, Software Development, WiFi)