Cool! The only thing I didn't like with poetry is that you cannot do a development install.

poetry install does automatically a dev install (inside a virtual env, but that can be disabled with https://python-poetry.org/docs/faq/#i-dont-want-poetry-to-manage-my-virtual-environments-can-i-disable-it).

But I agree that it'd be great to be able to do a simple pip install -e, also.. Generally speaking lot of these are pretty new, and there is some reluctance to support pyproject.toml for global project config (which I find really cool) as there is no toml lib in the stdlib.. mypy and flake8 come to my mind of projects that require a separate configs.

Do you have any more work on this? If not - go ahead and merge.

I think it's ready to be merged, in case there's still something to be changed, let's do that in a follow-up PR 🎉