Blazor Server provides support for hosting Razor components on a server in an ASP.NET Core app. It combines with a real-time database such as Google Firestore to enable real time UIs. A .NET Console application can be used to verify communication with Firestore works as expected before integrating it with Blazor. To create a real-time chat application, a new Blazor Server application is created and the Firestore NuGet package is added. The ChatRoom page is updated to include a form for sending messages, a list of chat messages, and a Listen function that fetches the latest messages from Firestore in real time. The implementation includes creating a FirestoreDb, adding messages to the "chatMessages" collection, and stopping the firestoreChangeListener when the component is disposed. The application can be tested by running it locally and opening it in two separate browser windows. Potential enhancements include moving the ChatMessage class to its own file and using dependency injection and AppSettings.json to configure the FirestoreDb.