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Groups.

Real-time 3D / AI — 2026

A small shared 3D world where you talk with your people and an AI builds what you describe.

Groups screenshot: a low-poly garden built by the Luna assistant, with the conversation panel open

Personal project

What I did

  1. Say “Luna, set up a planning corner” and the built-in assistant builds it from a catalog of 70+ low-poly models, writes the plan on a whiteboard and replies with an undo link.
  2. Walk around together in third or first person with real physics, see each other as avatars and talk with spatial voice.
  3. Build by hand with a library of models, shapes, notes, floor paint and collaborative Excalidraw boards that everyone edits live.
  4. Every change is saved as a version you can preview and restore; the layout also works on phones with touch controls.

Stack

  • React Three Fiber
  • Rapier
  • Excalidraw
  • Node.js
  • Postgres

View on GitHub ↗

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Get in touch

esia@mit.edu