gem 'bundler', '>= 0', group: %i(development)
gem 'test-unit', '>= 0', group: %i(development)
gem 'packnga', '>= 0', group: %i(development)
gem 'poppler', '>= 3.1.1', group: %i(development)
gem 'cairo', '~> 1.17.8'
