Basic development gems

Gemfile

group :development do
  gem 'better_errors'           # https://github.com/charliesome/better_errors
    gem 'binding_of_caller'     # - optional dependency for better_errors
  gem 'quiet_assets'            # https://github.com/evrone/quiet_assets
  gem 'spring'                  # https://github.com/rails/spring
  gem 'spring-commands-rspec'   # https://github.com/jonleighton/spring-commands-rspec
end

setup.sh

bundle install
bundle exec spring binstub --all    # 'springify' executables in bin/ directory