Content Creation Kit
TL;DR: The CCK is a Unity package that lets you build avatars, worlds, and spawnables (props) and upload them to ChilloutVR.
The Content Creation Kit is a collection of Unity tools, components, and build pipelines that turn your Unity project into publishable ChilloutVR content. It includes asset info components, a build panel, validation checks, content tagging, and a content browser.
Reference
Section titled “Reference” Components Reference Every CVR component — what it does, what it serializes, what gets whitelisted.