sindresorhus/is-installed-globally

Get the directory of globally installed packages and binaries

Let a globally installed package use a locally installed version of itself if available

Check if your code is running as an npm or yarn script

If you use globs, this will make your code faster. Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a better user experience. 55+ million downloads.

Check if a string matches the name of a Node.js builtin module

Install package programmatically.

Checks if currently installed npm dependencies are installed in the exact same versions that are specified in package.json

Package manager detector

Check if a project is using Yarn