Hey! I started using web presentations recently, so I went ahead and built something super fun - a plugin (for Slidev and Reveal.js) that adds interactive slides: ask a question and watch answers coming in, in real time. People scan a QR code and respond from their mobile browsers. It's powered by the free version of our product (AnyCable, I'm a co-founder) - but AnyCable is also MIT licensed, so no vendor lock. It just guarantees that with under 2000 people in the audience, it's gonna work smoothly. I tested it on audiences over 1,000 and also on zoom meetings. It's pretty cool. Ask a question (multiple choice or free input), create a whole quiz. We don't have persistence yet but I'm super open to suggestions for sure!

Also my first npm package ever (thanks to CC, but jeez I'm not a TS dev for sure, but, you know, people and robots helped).

Here's a demo (with explanation and live questions): https://slide-quiz-demo.netlify.app/

Repo: https://github.com/anycable/slide-quiz