Project where the data lives

Everything you record scopes to a project. Reuse one, make a new one, or use the throwaway scratch space.

Backend what drives it

Rapier runs right here in the browser — pick it to play immediately. MuJoCo / MJX / Gazebo / Isaac run server-side or externally (you connect to a running sim); real robot connects over ROS.

What to run robot + task, or a fleet

Environment name + persistence

A named space inside the project — its own map, cameras and retention. Scratch is auto-pruned; test/production are kept.