How do you apply a package in dbt?

To apply a package in dbt, it is essential to add it to your packages.yml file and then run the command dbt deps. This process allows you to specify the packages you want to include in your project, with each package typically containing reusable models, macros, and the necessary configurations. When you run dbt deps, dbt resolves the dependencies stated in your packages.yml file and installs them into your project. This approach ensures that your project has access to the functionality and resources provided by the package, enabling you to leverage community contributions or internal packages effectively.

Adding packages manually to a project or directly installing them in a data warehouse does not follow the structured process established by dbt and could lead to inconsistencies or incompatibility issues. The command dbt add, mentioned in one of the options, is not a valid command in dbt for managing packages. Therefore, including the package in packages.yml and using dbt deps is the correct and best-practice method to manage package dependencies in your dbt project.