--- Title: Welcome TitleHidden: true Section: Getting Started Order: 1 ---

Nylas Package API

The Nylas Package API allows you to create powerful extensions to N1. The client is built on top of Atom Shell and runs on Mac OS X, Windows, and Linux. It exposes rich APIs for working with the mail, contacts, and calendar and a robust local cache layer. Your packages can leverage NodeJS and other web technologies to create innovative new experiences.

Installing N1

N1 is available for Mac, Windows, and Linux. Download the latest build for your platform below:

Package Architecture

Packages lie at the heart of N1. Each part of the core experience is a separate package that uses the Nilas Package API to add functionality to the client. Learn more about packages and create your first package.

Dive Deeper

Debugging Packages

N1 is built on top of Electron, which runs the latest version of Chromium. Learn how to access debug tools in Electron and use our Developer Tools Extensions:

Questions?

Need help? Check out the [FAQ](./FAQ.html) or post a question in the [N1 Facebook Group](facebook.com/groups/nylas.mail)