Create a new playground:

$ mkdir gana_ground
$ cd gana_ground
$ bundle init

Add this lines to your playground's Gemfile:

gem 'gana'
gem 'curses

And then execute:

$ bundle install

Minimal gana script looks like this:

gana do |t1,t2|
  # ...
end

Save it to sample.rb and then you can run it:

gana sample.rb

Bug reports and pull requests are welcome on GitHub at https://github.com/marshall-lee/gana.

The gem is available as open source under the terms of the MIT License.