1. Access the {% data variables.product.prodname_vscode_command_palette %} (`Shift + Command + P` / `Ctrl + Shift + P`), then start typing "dev container". Select **Codespaces: Add Development Container Configuration Files...**.

   !["Codespaces: Add Development Container Configuration Files..." in the {% data variables.product.prodname_vscode_command_palette %}](/assets/images/help/codespaces/add-prebuilt-container-command.png)