- readable-stream
Streams3, a user-land copy of the stream library from Node.js
- mime-types
The ultimate javascript content-type utility.
- ws
Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js
- winston
A logger for just about everything.
- handlebars
Handlebars provides the power necessary to let you build semantic templates effectively with no frustration
- rimraf
A deep deletion module for node (like `rm -rf`)
- commander
the complete solution for node.js command-line programs
- postcss
- semver
The semantic version parser used by npm.
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