There are literally only two package managers for the npm registry right now. This is akin to apt vs dpkg. There used to be bower, which installed via GitHub d

There are literally only two package managers for the npm registry right now. This is akin to apt vs dpkg. There used to be bower, which installed via GitHub directly and has been dead for ages. There are now also several experimental alternatives but they have basically no traction. The newest contestant is Entropic, which was built by former npm developers as a reaction to the problems of a for-profit venture capital funded startup running a centralised registry and controlling the client. So for the Linux comparison (ignoring the actual implementations): yarn and npm are apt and dpkg, Entropic is yum and Bower is pacman. Not exactly proliferation if you consider how many packages there are on npm right now.