I prefer a unix approach where each tool does a single thing. The runtime does runtime things and someone can build a package manager to do package manager thi

I prefer a unix approach where each tool does a single thing. The runtime does runtime things and someone can build a package manager to do package manager things. The benefit of having runtime + package management bundled into one is you have an opinionated and standard way of doing things - the downside is if the package manager stinks then the whole ecosystem stinks.