ERROR: While executing gem ... (Gem::FilePermissionError) You don't have write permissions for the /Library/Ruby/Gems/2.6.0 directory.
Step 1 (install HomeBrew)
/bin/bash -c "$(curl -fsSL)
Step 2 (Run these two commands in your terminal to add Homebrew to your PATH)
echo 'eval "$(/opt/homebrew/bin/brew shellenv)"' >> /Users/”YOUR USER FORLDER”/.zprofile
eval "$(/opt/homebrew/bin/brew shellenv)"
Step 3 (now you can install cocoapods)
brew install cocoapods