I want to install Macaulay2, and first need to install Homebrew for this.

I was following https://brew.sh/ by putting

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)" 

into my terminal but it asked for a password. I don't know where I would go for this?

Is there an easier way to get Macaulay2 for my computer? I have the macOS Big Sur version 11.1.