What this does

feat(sim): allow loading envs from the hub
This allow people to upload environments on the hub, then easily load them.
from lerobot import make_env
For instance:
https://huggingface.co/jadechoghari/cartpole-env
Can be loaded as such

from lerobot.envs.factory import make_env
env1 = make_env("jadechoghari/cartpole-env", trust_remote_code=True)
print(env1)

This design unlocks a powerful new model for collaboration. Instead of environments being locked away inside monolithic libraries, anyone can publish an env.py to the Hugging Face Hub, from simple toy tasks to large-scale, GPU-accelerated simulation worlds, and you can load them instantly with a single line of code.

Over time, as more contributors share their work, the ecosystem of simulation environments will grow richer and more diverse. You can imagine a future where researchers push increasingly complex environments, physics-rich manipulation tasks, multi-agent worlds, photorealistic scenes, and they just work with the same LeRobot make_env() API.