What is HackinDROM?
[HackinDROM is an] OpenCore bootloader EFI updater [that] works on macOS Catalina and newer. -https://github.com/Inqnuam/HackinDROM
Things You Will Need
- A USB flash drive at least 512 MB https://amzn.to/3wkR5ju | https://amzn.to/3qkrJ1p | https://amzn.to/3Nhu9b9
Source: https://www.tonymacx86.com/threads/hackindrom-app-for-opencore-efi-creation-and-update.312176/