From  https://github.com/quarto-dev/quarto-cli/discussions/2263#discussioncomment-4942301

See if we can integrate part of the doc of [reveal/multiplex](https://github.com/reveal/multiplex) about setting things up. 
cderv
2023-02-13T10:13:12Z
cderv
documentation
v1.4
open
Improve doc about multiplex revealjs extension
https://github.com/quarto-dev/quarto-cli/issues/4495