The Hyperbole Home Page is here:

 https://www.gnu.org/software/hyperbole/

Just to look at if you don't want to interact with it,

the Hyperbole FAST-DEMO file is here:

  https://www.gnu.org/software/hyperbole/FAST-DEMO

The full web-version of the Hyperbole reference manual

(somewhat technical) is here:

   https://www.gnu.org/software/hyperbole/man/hyperbole.html

 

Enjoy.