[cixinlui]

I know Python much better than I do rust or node, but I think the Python design decision was decent here: you can use different tools, but all of them should put the configuration in pyproject.toml. That file has fields which are universal and others which can depend on the exact tooling used. So build tools, repos and so on can get the info they need and at least potentially, do the right thing for code packages with different tools.