Error: Cannot install in Homebrew on ARM processor in Intel default prefix (/usr/local)!
For what it's worth, before installing Homebrew you will need to install Rosetta2 emulator for the new ARM silicon (M1 chip). I just installed Rosetta2 via terminal using:
/usr/sbin/softwareupdate --install-rosetta --agree-to-license
This will install rosetta2 with no extra button clicks.
After installing Rosetta2 above you can then use the Homebrew cmd and install Homebrew for ARM M1 chip: arch -x86_64 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
Once Homebrew for M1 ARM is installed use this Homebrew command to install packages: arch -x86_64 brew install <package>