had the idle thought, "I wonder whatever happened to OpenCroquet, Alan Kay's weird open-source peer-to-peer distributed 3D multiplayer Smalltalk thing from like 2006?"
turns out that project was shut down for quite a while, but in 2024 it's back as croquet.io, PaaS vendor for the metaverse. siiiiiigh.
apparently for a brief period the tech was rebranded as "Immersive Terf®" and hoo boy is that ever a cursed marketing PDF now. they've since cancelled that trademark.