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Head First Ruby on Rails with MacOS

install

brew install node
brew install npm
npm install --global yarn
brew install sqlite3
brew install ruby
export PATH="/usr/local/opt/ruby/bin:$PATH"
gem install rails

confirm version

ruby --version
sqlite3 --version
node --version
yarn --version
bundle exec rails --version

create new site and run

bundle exec rails new blog
cd blog
bundle exec rails server