Why should I not just vibe code my own solution? - Its a hassle to maintain a version online.
But in quite a few cases presenter would want to control when information is presented/revealed to audience.
In the past I have liked marp (https://marp.app/) for technical slides as you write in markdown, can use version control, etc. Powerpoint always felt odd as a developer.
To share public slides I've published to GitHub pages (https://github.com/robalexdev/marp-to-pages). I've seen professors use it for all their slides. But that doesn't synchronize slides, last I checked.
I wanted to first know if people would like something like this.
I wanted to see if anybody wants this too, and hopefully develop it into a business.
Webex has this as well, but I find that most people don't bother and just share their screen.
https://support.microsoft.com/en-us/powerpoint/present-from-...
Just have a VM that you tell Zoom or whatnot is the "window to present" Now you can do anything, slides and more, and also that thing can be the only publicly seen thing, your computer stays private.