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godot-vr-tools
VR Tools is an auxiliary set of virtual reality tools for development, including such useful nodes as teleportation, grabbing, and the world space user interface.
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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.
I'm a VR researcher with a lot of Unity experience, and I've recently gotten into a-frame. If you've got previous webdev/javascript experience setup is a no-brainer, and it's working with OpenXR so there's a lot of cross-headset compatibility. It's basically a layer on-top of three.js that makes things simpler to use.