.NET Days Online 2025, Day 1: Aspire, Clean Architecture, C# Nullability, Messaging, Uno, Blazor TDD

Summary

The main theme is the .NET Days 2025 community event, focusing on sharing knowledge, tips, and real software development. Key subjects include .NET Core, web APIs, performance, diagnostics, testing, C#, F#, cloud with .NET Aspire, and Azure. The practical takeaway is that Jet Brains tools like Rider are constantly evolving to reduce friction and increase intelligence for .NET developers, keeping them in the flow and enabling them to build better software.