There is also a 'hypermodern' cookie cutter template for python projects - I've used it several times now and it works mostly out of the box:
https://github.com/cjolowicz/cookiecutter-hypermodern-python
https://github.com/cjolowicz/cookiecutter-hypermodern-python
I would go so far as to say that the hypermodern template, nomenclature aside, is strictly better than the recommendations that the OP put forward both here and in the previous essay on dependency management. Poetry and ruff, for instance, are both very good tools — and I can understand _not_ recommending them for one reason or another but to not even mention them strikes me as worrisome.