> For the complete documentation index, see [llms.txt](https://dcli.onepub.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dcli.onepub.dev/dependency-management-1/dependency-management.md).

# Dependency Management

## Dependency Management

Dart has a large collection of built in packages. You can read about the core packages at:

<https://dart.dev/guides/libraries/library-tour>

However, sometimes you need a specialised package.

There are thousands of third party packages that you can use in your DCli scripts which can be found at:

<https://pub.dev/packages>

{% hint style="warning" %}
NOTE: you can't use Flutter or web packages in your DCli scripts.
{% endhint %}

To use an external package you need to add it as a dependency to your script.

Dart's dependency management is done via a pubspec.yaml file.

Each package includes install instructions which is simply a matter of adding a dependency line to your pubspec and running:

`dcli prepare`.