This forum is for support for developers of other Nucleus extensions, including scheduled tasks, control panel extensions and other extensions.  Nucleus can be extended in many ways, including Scheduled Tasks, Control Panel Extensions, Search Index Managers, Search Providers, Database Providers, File System Providers and more.  Many extensions will use a Startup class to register their functionality, and by using standard ASP.NET dependency injection methods, you can extend Nucleus in ways that we haven't even thought of yet!