20230404 Install ruby on M1 Mac

brew update

brew upgrade

% brew --version

Homebrew 4.0.11

Homebrew/homebrew-core (git revision e9b537f0839; last commit 2023-03-12)

Homebrew/homebrew-cask (git revision a992121346; last commit 2023-03-12)

brew install rbenv

Add these two lines to .zshrc

export PATH="$HOME/.rbenv/bin:$PATH"

eval "$(rbenv init - zsh)"

brew install libyaml

brew install virtualenv

rbenv install -l

rbenv install 2.7.8

rbenv install 3.0.6

rbenv install 3.1.4

rbenv install 3.2.2

rbenv global 2.7.8

ruby --version

ruby -e "puts (1..100).reduce(:+)"

rbenv global 3.2.2

ruby --version

ruby -e "puts (1..100).reduce(:+)"