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# Chisel
-**Chisel** is a tool for carving and cutting Ubuntu packages.
+**Chisel** is a developer tool for extracting highly customized and specialized ({{package_slices}}) of Ubuntu packages to create
+compact, secure software.
-It is built on the idea of {{package_slices}} - minimal, complementary, and
-loosely coupled sets of files, based on the package's metadata and content.
-Slices are basically logical subsets of the Ubuntu packages, with their own
-content and set of dependencies to other internal and external slices.
-
-Chisel is able to extract a highly customised and specialised _Slice_ of the
-Ubuntu distribution, which one could see as a block of stone from which we can
-carve and extract the small and relevant parts we need to run our applications.
-
-It operates similarly to a package manager, but for package slices, thus being
-particularly useful for supporting developers in the creation of smaller but
-equally functional container images.
+Users need to be able to create software suited to their specific needs with a reduced attack
+surface and a small storage footprint. With Chisel, users build a minimal root filesystem by
+selecting and installing only the necessary slices from the full Ubuntu package set.
---------
## In this documentation
-````{grid} 1 1 2 2
+* **Tutorial**: [Hands-on introduction to Chisel in 15 minutes](tutorial/getting-started)
+
+* **Common patterns**: [Install Chisel](how-to/install-chisel) •
+[Slice a package](how-to/slice-a-package/) •
+[Use Chisel in a Dockerfile](how-to/use-chisel-in-dockerfile) •
+[Explore the Chisel CLI](reference/cmd/index)
+
+* **Slices**: [Learn more about slices](explanation/slices) •
+[Chisel releases](reference/chisel-releases/index) •
+[chisel.yaml](reference/chisel-releases/chisel.yaml) •
+[Slice definitions](reference/chisel-releases/slice-definitions) •
+[Install Ubuntu Pro package slices](how-to/install-pro-package-slices)
-```{grid-item-card} [Tutorial](tutorial/getting-started)
+---------
-**Get started** - become familiar with Chisel by slicing Ubuntu packages to create
-a minimal root file system.
-```
+## How this documentation is organized
-```{grid-item-card} [How-to guides](how-to/index)
+- The [Tutorial](tutorial/getting-started) takes you step-by-step
+through the creation of your first chiseled Ubuntu root file system, from installation to the slicing of Ubuntu
+packages.
+- [How-to guides](how-to/index) assume you have basic familiarity with
+Chisel. They cover tasks such as installation, slicing and usage of Chisel.
+- [Reference](reference/index) provides a guide to CLI commands,
+chisel-releases and security details.
+- [Explanation](explanation/index) includes topic overviews, background
+and context and detailed discussion.
-**Step-by-step guides** - learn key operations and common tasks.
-```
+---------
-````
+## Project and community
-````{grid} 1 1 2 2
-:reverse:
+Chisel is a member of the Ubuntu family. It’s an open source project that warmly welcomes [community contributions](https://documentation.ubuntu.com/project/contributors/).
-```{grid-item-card} [Reference](reference/index)
+### Get involved
-**Technical information** - understand the CLI commands, slice definitions files
-and Chisel manifests.
-```
+* Online chat
+* [Contribute](https://github.com/canonical/chisel)
+
+### Releases
-```{grid-item-card} [Explanations](explanation/index)
+* [Release notes](https://github.com/canonical/chisel/releases)
+* [chisel-releases](https://github.com/canonical/chisel-releases)
+
+### Governance and policies
-**Discussion and clarification** - explore Chisel's mode of operation and learn
-about fundamental topics such as package slices.
-```
+* [Code of conduct](https://ubuntu.com/community/docs/ethos/code-of-conduct)
+* [Security policy](https://github.com/canonical/chisel/blob/main/SECURITY.md)
+
+### Commercial support
-````
+Thinking about using Chisel for your next project? Get in touch!
---------
-## Project and community
-
-Chisel is free software and released under {{AGPL3}}.
-
-The Chisel project is sponsored by {{Canonical}}.
-
-- [Code of conduct](https://ubuntu.com/community/ethos/code-of-conduct)
-- [Contribute](https://github.com/canonical/chisel)
-- [Security policy](https://github.com/canonical/chisel/blob/main/SECURITY.md)
-
+This documentation uses the [Diátaxis documentation structure](https://diataxis.fr/).
```{toctree}
:hidden: