Binary package “rabbit” in ubuntu focal

presentation tool using RD, a simple text format

 Rabbit is an application to do presentations with RD documents. RD is a
 simple, easy-to-read, and easy-to-write text format like Wiki. Rabbit has
 many noteworthy features, which distinguish this application from other
 presentation tools.
 .
  * Slide looks are defined with Ruby and customizable.
  * Various keyboard interfaces.
  * Mouse gesture support.
  * Slides can contain many image formats: EPS, SVG, GIMP, and Dia.
  * Rabbit can be a server and you can access it with the dRuby interface.
  * and more...