I want to deploy my custom firmware. I have submitted firmware in the past, but it seems that the format has been changed (it was .zip but now .bin only).

https://github.com/kotobuki/M5Stack-HID-Input-Framework-for-xR-firmware

As a trial, I exported a .bin file by Sketch > Export compiled binary then specified the .bin file but got no luck.

Where is the document explaining how to prepare the firmware for use in the User Custom tab of M5Burner v3.0?