fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as mkdir -p, cp -r, and rm -rf.
Redis client library
The semantic version parser used by npm.
Tiny, fast, and elegant implementation of core jQuery designed specifically for the server
YAML 1.2 parser and serializer
A tiny wrapper around Node.js streams.Transform (Streams2/3) to avoid explicit subclassing noise
Node.js body parsing middleware
Handlebars provides the power necessary to let you build semantic templates effectively with no frustration