I've often found myself wanting to display information to the screen, or have a few buttons, or otherwise just have some form of simple GUI while writing Ruby scripts. All existing solutions seemed either very cumbersome or very crude, so on a whim I created Flammarion: the nifty ruby gui toolkit.
Flammarion is designed to be used in scripts or in interactive irb or pry sessions. It's quick and easy, but may not be really that well suited for huge applications.
More information is available on the Github page.
How it works
gem install flammarion
flammarion to your Gemfile.
The source code can be found at https://github.com/zach-capalbo/flammarion
The name comes from the Flammarion Engraving.