Treat it more like a cool proof of concept, now you can vibecode your own and use it with your own data

I know. Kinda hard to develop trust, but I am considering making all slides E2E encrypted or at least have the option for it.

I wanted to first know if people would like something like this.

Did you explore client-side for the presentation, and just do the collaborative part use a backend? Your backend doesn't really need to know whats on the screen to draw, nor to sync the slides, in my unverified opinion.