I either want one universal tool that can manage this sort of thing across multiple languages (eg. devenv) or a native, built-in tool (eg. go's tooling). I don't see how this is any different from all the previous incarnations of Python's project/package management tools. The constant churning of 3rd party tooling for Python was one of the main reasons I mostly stopped using it for anything but smaller scripts.
The difference is that this one is actually good. So good, in fact, that there is considerable momentum and thus adoption with this tool, and I wouldn’t be surprised if it reaches a similar state like npm is for node eventually.