I think they meant "unified" here in the same sense in which BusyBox is unified, i.e. several things you'd normally use different tools for combined into one executable/project. They're not trying to invent any new standards, most of these tasks already have PEPs that the existing tools and uv both implement. Maybe not the best word choice though because I normally have the same instinctive reaction in response to someone claiming something is "unified".