The MacBook Air with a 15-inch M3 chip, released in 2024, already has the gem installed. You can verify its version using the commands gem -v and ruby -v. We still need to install a few more things.

Install Homebrew

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

Open the ~/.zshrc for zsh or ~/.bash_profile for bash. And export PATH="/opt/homebrew/opt/ruby/bin:$PATH" and apply changes by running source ~/.zshrc # or source ~/.bash_profile

You can check brew version via brew -v

Install rvm

\curl -sSL https://get.rvm.io | bash -s stable –ruby

echo ‘source $HOME/.rvm/scripts/rvm’ >> ~/.zshrc # or ~/.bash_profile
source ~/.zshrc # or source ~/.bash_profile

rvm install 3.1.2 # Replace with the desired Ruby version

rvm use 3.1.2 –default

ruby -v

Install CoCoPods

gem install cocoapods

If it prompts several packages version are not right, just install them according to instructions and you will install them successfully.

Finally check pod pod --version