A live, growing catalog of open-source business applications you can install into your organization with a few clicks - no server to provision, no upstream documentation to work through to get the initial setup right.
The catalog spans development tooling, storage and file sharing, team communication, and automation, and is fetched fresh every time you open it, so what you see is always what's actually available to install, not a list baked into the dashboard that can drift out of date. New applications appear automatically as they're added.
See Concepts › The App Store for how it works, and Guides › Installing apps for a walkthrough of each app currently in the catalog.