fix(libero-plus): stop touching pyproject + uv.lock

The fast-tests job was rejecting the branch because pyproject.toml had a
[libero_plus] extra whose git dep wasn't represented in uv.lock.

The Docker image no longer needs the extra — it clones LIBERO-plus
directly and PYTHONPATH-shadows hf-libero. Drop [libero_plus] from
pyproject and restore pyproject.toml + uv.lock to exactly what's on
origin/main, so `uv sync --locked --extra test` is a no-op for this PR.

Also repoint the doc/CI/env comments that still mentioned the extra at
the Docker install path.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.github/workflows/benchmark_tests.yml

@@ -312,7 +312,8 @@ jobs:
           if-no-files-found: warn
 
   # ── LIBERO-plus ───────────────────────────────────────────────────────────
-  # Isolated image: lerobot[libero_plus] only (LIBERO-plus from GitHub, mujoco)
+  # Isolated image: LIBERO-plus fork cloned into /home/user_lerobot on top of
+  # huggingface/lerobot-gpu (see docker/Dockerfile.benchmark.libero_plus).
   libero-plus-integration-test:
     name: LIBERO-plus — build image + 1-episode eval
     runs-on:

docs/source/libero_plus.mdx

@@ -43,10 +43,13 @@ sudo apt install libexpat1 libfontconfig1-dev libmagickwand-dev
 ### Python package
 
 ```bash
-pip install -e ".[libero_plus]"
+pip install -e ".[libero]" "robosuite==1.4.1" bddl easydict mujoco wand scikit-image gym
+git clone https://github.com/sylvestf/LIBERO-plus.git
+cd LIBERO-plus && pip install --no-deps -e .
+pip uninstall -y hf-libero  # so `import libero` resolves to the fork
 ```
 
-This installs LIBERO-plus directly from its GitHub repository. Because MuJoCo is required, only Linux is supported.
+LIBERO-plus is installed from its GitHub fork rather than a pyproject extra — the fork ships as a namespace package that pip can't handle, so it must be cloned and added to `PYTHONPATH`. See `docker/Dockerfile.benchmark.libero_plus` for the canonical install. MuJoCo is required, so only Linux is supported.
 
 <Tip>
 Set the MuJoCo rendering backend before running evaluation:

pyproject.toml

@@ -210,12 +210,6 @@ video_benchmark = ["scikit-image>=0.23.2,<0.26.0", "pandas>=2.2.2,<2.4.0"]
 aloha = ["lerobot[dataset]", "gym-aloha>=0.1.2,<0.2.0", "lerobot[scipy-dep]"]
 pusht = ["lerobot[dataset]", "gym-pusht>=0.1.5,<0.2.0", "pymunk>=6.6.0,<7.0.0"] # TODO: Fix pymunk version in gym-pusht instead
 libero = ["lerobot[dataset]", "lerobot[transformers-dep]", "hf-libero>=0.1.3,<0.2.0; sys_platform == 'linux'", "lerobot[scipy-dep]"]
-libero_plus = [
-    "lerobot[dataset]",
-    "lerobot[transformers-dep]",
-    "libero @ git+https://github.com/sylvestf/LIBERO-plus.git@main ; sys_platform == 'linux'",
-    "lerobot[scipy-dep]",
-]
 metaworld = ["lerobot[dataset]", "metaworld==3.0.0", "lerobot[scipy-dep]"]
 
 # All

src/lerobot/envs/configs.py

@@ -588,9 +588,9 @@ class LiberoPlusEnv(LiberoEnv):
     The gym interface is identical to LIBERO so this class reuses ``LiberoEnv``
     entirely — only the registered name and default task suite differ.
 
-    Install::
-
-        pip install -e ".[libero_plus]"
+    Install: see docker/Dockerfile.benchmark.libero_plus — LIBERO-plus ships
+    as a namespace package from a git fork and must be cloned + PYTHONPATH'd
+    rather than installed as a pyproject extra.
 
     See Also:
         https://github.com/sylvestf/LIBERO-plus