path-key
Get the PATH environment variable key cross-platform
proxy-from-env
Offers getProxyForUrl to get the proxy URL for a URL, respecting the *_PROXY (e.g. HTTP_PROXY) and NO_PROXY environment variables.
dotenv
Loads environment variables from .env file
has-property-descriptors
Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.