Setup new project

mkdir project
cd project
touch .ruby-version
touch .ruby-gemset
echo ruby-2.6.4 > .ruby-version
echo project > .ruby-gemset
cd ../project
gem install rails -v 6.0.0 --no-document
rails new . -T
gem install bundler
bundle

brew install libxml2
bundle config build.nokogiri --use-system-libraries --with-xml2-include=/usr/local/opt/libxml2/include/libxml2