diff --git a/docs/installation.md b/docs/installation.md
index 6bafce90..0dc15a75 100644
--- a/docs/installation.md
+++ b/docs/installation.md
@@ -5,14 +5,14 @@
 :::{tab-item} System
 
 ```shell
-pip install "ngff-zarr[cli]"
+pip install ngff-zarr
 ```
 
 :::
 
-:::{tab-item} Browser In Pyodide, e.g. the
-[Pyodide REPL](https://pyodide.org/en/stable/console.html) or
-[JupyterLite](https://jupyterlite.readthedocs.io/en/latest/try/lab),
+:::{tab-item} Browser via Pyodide
+
+With, for example, the [Pyodide REPL] or [JupyterLite]
 
 ```python
 import micropip
@@ -23,14 +23,38 @@ await micropip.install('ngff-zarr')
 
 ::::
 
-Optional dependencies include:
+## Optional dependencies
+
+Optional extras dependencies include:
+
+`cli` : Additional IO libraries for
+[file conversion programmically or via the command line interface (CLI)](./cli.md).
+
+`dask-image` : Support multiscale generation with [dask-image]
+[methods](./methods.md).
+
+`itk` : Support multiscale generation with [itk] [methods](./methods.md).
+
+`tensorstore` : Support writing with [tensorstore].
 
-`cli` : Additional IO libraries for the command line interface (CLI).
+`validate` : Support OME-Zarr data model metadata validation when reading.
 
-`dask-image` : Multiscale generation with `dask-image` methods.
+[Pyodide REPL]: https://pyodide.org/en/stable/console.html
+[JupyterLite]: https://jupyterlite.readthedocs.io/en/latest/try/lab
+[dask-image]: https://image.dask.org/en/latest/
+[itk]: https://docs.itk.org/en/latest/learn/python_quick_start.html
+[tensorstore]: https://google.github.io/tensorstore/
 
-`itk` : Multiscale generation with `itk` methods.
+### Install all optional dependencies
 
-`tensorstore` : Support writing with `tensorstore`.
+To install all optional dependencies:
 
-`validate` : Support metadata validation when reading.
+```shell
+pip install "ngff-zarr[cli,dask-image,itk,tensorstore,validate]"
+```
+
+which is equivalent to:
+
+```shell
+pip install "ngff-zarr[all]"
+```
diff --git a/docs/quick_start.md b/docs/quick_start.md
index 0b91ec26..e6115ce5 100644
--- a/docs/quick_start.md
+++ b/docs/quick_start.md
@@ -20,5 +20,6 @@ import numpy as np
 
 data = np.random.randint(0, 256, int(1e6)).reshape((1000, 1000))
 multiscales = nz.to_multiscales(data)
+
 nz.to_ngff_zarr('example.ome.zarr', multiscales)
 ```
diff --git a/pyproject.toml b/pyproject.toml
index 1bbace87..a13478a0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -78,6 +78,7 @@ validate = [
   "jsonschema"
 ]
 docs = [ "furo>=2024.7.18,<2025", "myst-parser>=3.0.1,<4", "sphinx>=7.4.7,<8", "sphinx-autodoc2>=0.5.0,<0.6", "sphinx-copybutton>=0.5.2,<0.6", "sphinx-design>=0.6.0,<0.7", "sphinxext-opengraph>=0.9.1,<0.10", "sphinx-autobuild>=2024.4.16,<2025"]
+all = ["ngff-zarr[cli]", "ngff-zarr[docs]", "ngff-zarr[test]", "ngff-zarr[validate]", "ngff-zarr[tensorstore]"]
 
 
 [tool.coverage.report]