I've always argued that npm is nodejs's killer feature. Semver is suggested and used almost everywhere. Setting up the development environment for almost any pr

I've always argued that npm is nodejs's killer feature. Semver is suggested and used almost everywhere. Setting up the development environment for almost any project is just `npm install` from within its directory. Dependency hell isn't a show-stopping issue: it's perfectly fine for libraries A and B to have sub-dependencies and to depend on different versions of C. No longer do I have to wrestle with things when I try to install a project that relies on a different version of what I already had installed on my system. (Sure, there's some gains to be had to updating packages to consistently use the latest version of C, but when we're talking about libraries on the order of kilobytes, that really shouldn't be a blocker issue stopping something from working.)