Replacement for zerokspot.recipe.git/GIT checkouts as buildout part/Python 3 compatibility?

Is there a replacement for the https://pypi.org/project/zerokspot.recipe.git/ recipe for making arbitrary checkouts inside a buildout with Python 3 compatibility?

I never used the recipe you mention, but it seems to me you can achieve the same with mr.developer: check the full-path and egg=false options