Question 1

What is Reality Lab?

Accepted Answer

A local-first playground for particle life, sand alchemy, orbits, quantum circuits, XR scenes, gesture/gaze tools and kinetic path art — all running in the browser.

Question 2

Does Reality Lab upload my simulations?

Accepted Answer

No — particle life, sand and kinetic art run entirely in your browser. Satellite TLE fetch is optional and can use pasted TLEs offline. WebLLM and similar heavy assets stay opt-in.

Question 3

Why not WebGazer or XR Animator?

Accepted Answer

WebGazer is GPLv3 and XR Animator is CC BY-NC-SA — ToolHub ships MediaPipe Face/Pose rebuilds (Eye Control, Body Puppet) instead. Quirk (Apache-2.0) and BeepBox (MIT) load in sandboxed iframes with attribution.