With so many third-party packages available via Atmosphere it's very easy to build, basically, anything! If you have a specific development need—some type of logic or library—chances are someone else has already packaged it up for you (and if they haven't, what a great opportunity for you!).

That being said, not all packages are created equal. Some will have fantastic documentation, with samples and tutorials on how to implement a library inside Meteor. Others, not so much. In either case, you will at some point need to roll up your sleeves and do a bit of work yourself. In this chapter, we will go over a few of the more popular third-party libraries, and show you how to implement them in Meteor.