I want pipenv to create its virtualenv in $PROJECTDIR/.venv automatically for everyone who checks out the project. So far, I see only the following options working, none of which is satisfying: Ask users to set PIPENV_VENV_IN_PROJECT=1 globally, forcing my project preferences on each of their other projects. Ask users to always invoke pipenv via “PIPENV_VENV_IN_PROJECT=1 pipenv” when inside my project,