Can somebody help me with using this EFI?

Can somebody help me with using this EFI?

Hello,

My laptop is Dell Vostro 5401 and going to install macOS Big Sur. Fortunately there is a EFI and guid to use it for this model, on github:

https://github.com/Lorys89/Dell_Vostro_5401-ICE-LAKE

But I couldn't understand clearly what should I do from the line shown in the picture:

https://preview.redd.it/ksce4632qux61.png?width=897&format=png&auto=webp&s=02f1528d5fb730082b00da39e8a799d4c11b2b60

Can you please explain the rest for a newbie :) ?

Are these scary things really essential? (Regarding that he says: DO AT YOUR OWN RISK)

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