Hi @amitbet! Definitely, you can use Snack for this. Like you said, it’s one if the easiest ways to get development up and running without having to install anything.
While you can have participants just use the Web tab, another option is to have them use their own smart phones (Android or iOS), download the Expo client app through the app store or play store, and run the code on their phone. It’s pretty awesome to make a few changes in the browser and see the effect on your own device 