Explain how to use a local plugin in a Flutter project.

To use a local plugin in a Flutter project, you can add a dependency in the pubspec.yaml file, pointing to the local plugin directory. This allows the project to use the local version of the plugin during development. It's a useful approach for testing and making changes to the plugin without publishing it to a public repository. After adding the dependency, run 'flutter pub get' to fetch the local plugin. Understanding this process is crucial for developers working on custom plugins or modifying existing ones locally.