The ecosystem of N.I.N.A. consists of a whole lot more than just the main application. There is quite a bit of orchestration done in the background to be able to build the application as it is today.
Main application - The main application source code
Plugin Manifests - Meta Definition files for plugins can be pushed here
Plugin Template - Serves as a starting point for plugin developers
Documentation - Using mkdocs to define the documentation
Discord Chat Bot - A bot to make life easier inside the discord chat
Crowdin Localization Management
See the dedicated page for Localization for more details
The Homepage serves as the central hub to gather the resources. It also hosts the webservice that will tell you and the application where to get updates, as well as hosting the documentation.