For reference:

Hyperbole Videos are here:
   https://www.youtube.com/channel/UCNRwswKKpjOlOVfFTS73P9A/videos

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.