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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
Intended to be tongue in cheek, not click bait. ymmv. Direct link to the sample code if you prefer: https://github.com/daily-demos/party-line
Cross-platform quirks still make doing WebRTC hacking difficult enough that we very much think it's worth publishing both sample code and tutorials at varying levels of detail. And we try to make them entertaining. This one has working code for the web, React Native, iOS native, and Android native. We get asked how to make things work cross-platform *a lot*.