Worked on enhancing error handling in the CommunityToolkit/Maui repository by making custom exceptions for popup error scenarios publicly accessible. This change allowed downstream developers to implement more precise catch-and-respond logic for popup-related errors, improving both debugging and testing workflows. The technical approach involved careful public API surface design in C# and .NET MAUI, with a disciplined focus on error handling patterns. By exposing these exceptions, the work enabled clearer diagnostics and more robust error management in applications using the toolkit. No major bugs were addressed during this period, with efforts concentrated on delivering this targeted feature enhancement.