Multiplex TRUE and presenting locally reveal.js

[mariannasebo]

Hi! I am preparing a presentation with reveal.js. It is an in-person presentation and there will be a lot of people so I thought I could use multiplex with my phone on speaker mode and open on the desktop PC (available in the room, not sure whether or not with internet) the non-speaker version. Is there a way to do that? I have tried but on my phone I couldn't open the self-contained HTML file, what I can open is the quarto-pub. I understand that the quarto-pub wont let multiplex to work, right?
In an ideal case I just want to be able to present standing up and not have to go back to the computer to use the mouse. Any other solution besides the phone with multiplex speaker mode is welcome.
Thanks!!
Marianna