NPM is the most used package manager for node.js and JavaScript ecosystems. By using the global packages mechanism, a node.js package can be easily integrated into system shell and just works like a native command line utility (or even an desktop GUI program). However, by default, the global packages are installed as shared global packages across users and requires root privilege for maintenance, which may be unavailable for general user and also expose potential conflict of packages between users. This post will cover simple configuration for npm global package for current user only.