Catalyst is a set of patterns and techniques for developing components within a complex application. At its core, Catalyst simply provides a small library of functions to make developing [Web Components](https://developer.mozilla.org/en-US/docs/Web/Web_Components) easier.
For more see the [Catalyst Website](https://github.github.io/catalyst/) which includes a [Guide To using Catalyst](https://github.github.io/catalyst/guide/introduction).