Baseado em https://github.com/mizukami2005/rails_static_sample
1 - Abra o terminal ou prompt de comandos
2 - Abra a sua pasta de projetos ()
3 - Copie o projeto
git clone https://github.com/hrangel/rails_static_sample.git
4 - Instale
cd rails_static_sample
gem install bundler
bundle install
5 - Execute
rails s
6 - Abra no navegador: http://localhost:3000