Which Visual Studio project contains the Startup.cs class?

The Startup.cs class is a fundamental part of an ASP.NET Core application and serves as the entry point for configuring application services and the request pipeline. In the context of Sitecore XM Cloud development, the RenderingHost project is specifically designed to handle the rendering of components and pages through APIs, which aligns well with the use of a Startup.cs file.

The RenderingHost project typically contains the application’s startup configuration, which includes service registrations, middleware configuration, and other foundational setup code. This project is critical for managing how the application behaves and integrates with Sitecore and other services.

In contrast, the other project types like Platform, ContentManagement, and SitecoreWeb mainly focus on different aspects of the Sitecore ecosystem, such as content delivery or CMS functionalities, and do not typically feature a Startup.cs file as part of their architecture.