diff --git a/.gitignore b/.gitignore
index d8cf321a..36a82bf8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,5 +5,6 @@ dist/
 build/
 grill.egg-info/
 docs/build/
+docs/source/_static/wheels/*.whl
 docs/Makefile
 docs/make.bat
diff --git a/docs/source/_static/wheels/.gitkeep b/docs/source/_static/wheels/.gitkeep
new file mode 100644
index 00000000..e69de29b
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 65aad7bf..dddf5e64 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -48,6 +48,7 @@
     'sphinx_inline_tabs',
     'sphinx.ext.autosectionlabel',
     'sphinxcontrib.doxylink',
+    'sphinx_pyrepl_web',
 ]
 
 # Offset to play well with copybutton
@@ -101,9 +102,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '0.18'
+version = '0.19'
 # The full version, including alpha/beta/rc tags.
-release = '0.18.0'
+release = '0.19.1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -146,6 +147,9 @@
   'custom.css',
 ]
 
+pyrepl_doctest_blocks = "autodoc"
+pyrepl_autodoc_packages = ":project:,grill-usd-core==26.8,grill-names>=2.6.0"
+
 # -- Options for HTMLHelp output ------------------------------------------
 
 # Output file base name for HTML help builder.
diff --git a/docs/source/index.rst b/docs/source/index.rst
index b59e22a7..3ed393a3 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -17,6 +17,7 @@
    pipeline
    views
    end_to_end
+   playground
    api
 
 Indices and tables
diff --git a/docs/source/playground.rst b/docs/source/playground.rst
new file mode 100644
index 00000000..904a1103
--- /dev/null
+++ b/docs/source/playground.rst
@@ -0,0 +1,22 @@
+Playground
+==========
+
+Try ``grill.cook`` and ``grill.names`` in your browser. Packages are loaded via Pyodide; USD comes from the experimental ``grill-usd-core`` WASM build.
+
+.. attention::
+
+   This REPL is experimental. Asset creation writes to a temporary in-browser filesystem that is lost on refresh.
+
+.. py-repl::
+   :packages: :project:,grill-usd-core==26.8,grill-names>=2.6.0
+   :repl-title: Grill Cook Playground
+   :no-banner:
+
+   >>> from grill import cook, names
+   >>> import tempfile
+   >>> from pathlib import Path
+   >>> cook.Repository.set(Path(tempfile.mkdtemp()))
+   >>> stage = cook.fetch_stage(cook.UsdAsset.get_anonymous())
+   >>> character = cook.define_taxon(stage, "Character")
+   >>> character
+   >>> cook.create_unit(character, "Hero01", label="Hero 01")
diff --git a/setup.cfg b/setup.cfg
index 38e4ba8b..0fcc4537 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -52,7 +52,8 @@ include = grill.*
 # python -m pip install -e .
 
 docs =
-    sphinx
+    sphinx>=9,<10
+    sphinx-pyrepl-web @ git+https://github.com/chrizzFTD/sphinx-pyrepl-web.git@cursor/project-package-lists-370c
     myst-parser
     sphinx-toggleprompt
     sphinx-copybutton