• I have searched the issues of this repo and believe that this is not a duplicate.
• I have searched the documentation and believe that my question is not covered.

Feature Request

It would be nice if the --only-root option for install command will be introduced. We have a use-case with the multistage docker build. At first, we install dependencies with --no-root option because dependencies are not changing so often. During the second stage, we would like to install only the application. Unfortunately, there are some git dependencies so the second stage requires git installed even no dependencies are finally installed.