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

Feature Request

Currently, log verbosity can only be set through the command line (e.g. poetry install -vvv), but sometimes it would be nice to set it via environment variable. For example, if the invocation of poetry is outside of your control, such as (in my case) dh-poetry.