.NET Rocks!

Erwin van der Valk, Principal Engineer at Duende Software, dives into the complexities of securing browser-based frontends with ASP.NET Core backends. He discusses the Backend for Frontend (BFF) security framework, which streamlines API integration for diverse clients. The conversation highlights the importance of robust user authentication, handling OAuth 2.0 challenges, and managing tokens securely. Erwin also explores the nuances of Blazor rendering modes and the architectural advantages of multi-frontend support to boost development efficiency.

Steve Smith, an entrepreneur and software developer focused on quality software, joins the discussion about balancing architecture and coding. He addresses the fine line between over-design and getting work done, emphasizing how architectural strategies evolve with team size and tools. Steve shares insights on effective refactoring and the adaptability required in software development. The conversation also explores the role of modern tools, like GitHub Copilot, in fostering collaboration and reducing constraints on developers.

Open Source Maintainers are burning out or going commercial - how do we solve this? Carl and Richard chat with Rob Mensching about his work to create the open source maintenance fee through GitHub. Rob talks about the common problem of single maintainers getting buried under issues and demands of consumers for a project. Recognizing that most people cannot contribute to the project, a maintenance fee helps support the maintainer in a low friction way for everyone involved. Check out the links to get started!

Vishwas Lele, Co-founder and CEO of pWin and a Microsoft Regional Director, discusses how AI can revolutionize responding to government RFPs. He shares insights on tuning language models to enhance proposal quality and the importance of structured knowledge bases. The conversation highlights the balance between AI's rapid response capabilities and the need for human creativity and strategic thinking. Lele also emphasizes the significance of compliance and transparency in AI usage, ensuring that proposal responses meet stringent requirements.

Can you integrate performant audio-video into your .NET application? Carl and Richard talk to Elias Puurunen about his work at Tractus Events, where he uses the NDI protocols to bring real-time audio and video streams into his C# application. Elias talks about the power of P/Invoke to access the underlying libraries for controlling video streams, including utilizing NVidia GPUs for extremely fast encoding and decoding. You could write this code in C++, but why?

Ready to build an agentic AI in .NET? Carl and Richard talk to Spencer Schneidenbach about his work using large language models to enhance customer interactions in healthcare. Spencer discusses using the LLMs to summarize customer conversations to identify topic areas, sentiment, and other concerns. He digs into how Microsoft's Semantic Kernel makes connecting an OpenAI model to your APIs easy, fetching information and creating a context for testing reliability and consistency with these models. Check out the links for some great tools to help make your AI apps with .NET!

How do you measure the quality of a large language model? Carl and Richard talk to Dr. Jodie Burchell about her work measuring large language models for accuracy, reliability, and consistency. Jodie talks about the variety of benchmarks that exist for LLMs and the problems they have. A broader conversation about quality digs into the idea that LLMs should be targeted to the particular topic area they are being used for - often, smaller is better! Building a good test suite for your LLM is challenging but can increase your confidence that the tool will work as expected.

What are JavaScript promises, and why do you want to make them? Carl and Richard talk to Martine Dowden about all the various async options available in Javascript today, including Callbacks, Promises, Async/Await, and even ReactiveJS! Martine digs into some of the more remarkable features available, including grouping sync calls together so code is only called when they all complete, or the race option where only one needs to complete, and everything else is thrown away. Lots of power is available in Javascript today. Have you taken advantage of it?

What's the latest with .NET Aspire? Carl and Richard talk to Rob Richardson about his experiences with .NET Aspire to help build great .NET cloud apps. Rob talks about all the goodness that comes out of the box with Aspire, including OpenTelemetry, containerization, good security practices, and the excellent dashboard. The discussion turns to the challenges of evolving .NET to be better in the cloud, retrofitting existing applications with Aspire, and all the container choices you have in front of you with these tools. There's more than one way to fall into the pit of success!

Seventeen years of Automapper! Carl and Richard talk to Jimmy Bogard about his latest version of Automapper - and the challenge of maintaining a long-lived and much-loved open-source library! Jimmy talks about the origins of Automapper as a tool he needed for working with clients and automating the mapping of objects. Initially, he moved to GitHub on Codeplex in 2009, and as open source became more popular in the .NET community, Automapper has hundreds of millions of downloads. And now, the next challenge - how to sustain this open-source project!