[Mattermost](https://mattermost.com) is an open source platform for secure collaboration across the entire software development lifecycle. This repo is for the native desktop application that's built on [Electron](http://electron.atom.io/); it runs on Windows, Mac, and Linux.
1. Download a file from the [downloads page](https://mattermost.com/download/#mattermostApps) or from the [releases page](https://github.com/mattermost/desktop/releases).
2. Run the installer or unzip the archive.
3. Launch Mattermost from your Applications folder, menu, or the unarchived folder.
3. On the first launch, please enter a name and URL for your Mattermost server. For example, `https://mattermost.example.com`.
Our [docs provide a guide](https://docs.mattermost.com/deployment/desktop-app-deployment.html) on how to customize and distribute your own Mattermost Desktop App, including how to distribute the official Windows Desktop App silently to end users, pre-configured with the server URL and other app settings.
Our [developer guide](https://developers.mattermost.com/contribute/desktop/) has detailed information on how to set up your development environment, develop, and test changes to the Desktop App.