> Curious how easy the setup is for gamers who are non-engineers

You're still writing a mod for whatever game, it's just that this library gives you an easy way to get the mario-jumping physics right. So unfortunately, non-programmers will probably have to wait for someone to insert mario into your game of choice, although this library will make that process a bit easier.

Metaverse without Crypto/VR/Facebook is fantastic and is bound to happen.

Metaverse is just people building cool stuff in a way that builds and compounds.

Critically - hopefully - in a way that can't be owned as a central platform.