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.NET Rocks!

Author: Carl Franklin and Richard Campbell

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.NET Rocks! is an Internet Audio Talk Show for Microsoft .NET Developers.
20 Episodes
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Ready for the next version of Visual Studio? Carl and Richard talk to Mads Kristensen about the long-awaited version of Visual Studio. Needless to say, artificial intelligence sits front and center. Mads talks about the deep integration of AI across the development lifecycle, including code completion, debugging, even natural language querying. The conversation also digs into the role of Visual Studio as a project management tool, and its integration with cloud, GitHub, and more!
How has DevOps changed in 2025? Carl and Richard talk to Michael Levan about his experiences helping teams automate their development workflows, and dealing with all the details that help the entire team focus on providing customer value. Michael digs into the role of the new AI tools in facilitating better workflows around code, testing, deployment, telemetry, and more. Then the conversation turns to security - and the many challenges that exist to make applications that are secure when deployed, and help with the security challenges that happen while in operation!
How did the design of GitHub evolve? Carl and Richard speak with Diana Mounter about her experiences at GitHub, including her role as head of design. Diana discusses how she was drawn to GitHub as a designer and how her career evolved to lead design for the company. The conversation ranges over different design concepts, the Primer design language, and how to effectively combine design and development to achieve great results.
What's coming in C#14? Carl and Richard chat with Dustin Campbell about the next version of C#, discussing what it takes to continue advancing software development in the Microsoft ecosystem. Dustin discusses how features are selected from version to version, including long-developed features like extension members, which have been in development for years. The conversation also turns to Razor Pages, which Dustin helps contribute to, and the dynamic of what should be language, what should be framework, and what should be tooling. And there's much more to come!
How has application security evolved over the decades? Carl and Richard talk to Michael Howard about his experiences working in security at Microsoft. Michael discusses his current role as a member of the Red Team at Microsoft, which identifies security vulnerabilities within the organization by creating scenarios that black hats might employ, such as stealing tokens or hijacking financial transactions. The conversation examines how security continues to evolve, with improved tools, new attack surfaces, and increasingly serious attacks. It's an arms race, but one the good guys can win!
Can you improve a legacy application? What's the right way to go about it? Carl and Richard talk with Billy Hollis about his work updating legacy applications, starting with the most essential question: should you? Billy begins by defining what it means to be a legacy application and how, invariably, these applications are critical to the organization, so you have to tread lightly. Typically, the focus is on modernizing the client-side of the app, which brings us to the crux of the matter: Are the workflows of the company today well reflected in the older application? Lots of great thoughts from one of the longest-serving guests of .NET Rocks!
How can event sourcing help your applications? Carl and Richard speak with Hannes Lowette about his work in helping developers utilize event sourcing patterns to build scalable applications. Hannes discusses moving away from the old habit of decomposing data from objects into rows, columns, and tables, as there's no reason to save that disk space anymore. Storing objects as event streams means you can always generate relational data if needed, but things run faster and scale better in the streams.
Do you have AI concerns? So does Mark Seemann! Carl and Richard chat with Mark about his views on the impact that large language models are having on the development community. Mark starts with the power of ChatGPT to be perceived as a source of truth, which we know isn't true! How does this ultimately impact the development of software? You need sufficient knowledge to assess whether the code generated by these tools is valid, accurate, and appropriate. The tools can also help with the process. We're still in the early days of using AI for information - there's a lot to learn!
How do you build progressive web apps in 2025? Carl and Richard talk to Lemon about his experiences building all sorts of PWAs for customers and entertainment. Lemon discusses going beyond the icon in PWAs and leveraging more powerful features, including service workers. The conversation also digs into some of the crazy talks done over the years, as well as gaming from browsers and more!
How can AI tech help you write better code? Carl and Richard talk to Mark Miller about the latest AI features coming in CodeRush. Mark talks about focusing on a fast and cost-effective AI assistant driven by voice, so you don't have to switch to a different window and type. The conversation delves into the rapid evolution of software development, utilizing AI technologies to accomplish more in less time.
Ready for a great explanation of Agentic AI? For the last show at Build, Carl and Richard sit down with Seth Juarez to dig into what agentic AI really is - and how you can take advantage of it! Seth discusses the potential of MCP and NLWeb to enable agents to work with each other, as well as the challenges of managing these tools effectively. The conversation turns to what's happening under the hood of agentic AI software, including the limitations of its abilities. There is a need for governance and clear thinking with these new development tools!
It's the Imagine Cup Finalists! While at Build, Carl and Richard sat down with Daniel Kim, Matt Steele, and Gheida Omar to talk about their projects in the Imagine Cup. Gheida discussed Signvrse, a mobile app that enables real-time translation of speech, text, and sign language. Matt tells the story of Hairmatch, a mobile app for women with textured hair. And Daniel describes Argus, the winner of the Imagine Cup, as a two-part wearable device for people with low vision that provides object detection, facial recognition, and spatial guidance. All amazing projects from a remarkable group of young people!
How do you eliminate the friction of development? Carl and Richard talk to Nicole Forsgren about her upcoming book on eliminating the friction from software development. Building on her earlier book, Accelerate, Nicole discusses the role of AI technologies in software development, along with more traditional DevOps elements, such as automating testing, deployment, telemetry, and more. There's never been a better time to pay attention to your tools and methods when it comes to software development - when you improve your workflow, your productivity soars!
What happens when AI comes to your web testing tool? While at Build, Carl and Richard talked to Debbie O'Brien about the latest features in Playwright, including Playwright MCP, the model control plane for Playwright capabilities. Debbie talks about using Playwright MCP to buy a table. Ask your LLM what tests should be written for your web page, and then ask it to write them. The potential of these tools is to make more tests in less time that are more resilient as versions of both the website and the testing tools change!
How will coding agents change your code? While at Build, Carl and Richard chatted with Scott Hunter about the announcements around coding agents at the keynote. Scott talks about the agent mode available in Visual Studio Code - and now in Visual Studio! Agent mode allows the LLM to evaluate the code across an entire solution, not just the file you're currently looking at. You can create a workflow where GitHub issues are assigned to the agent, which then generates code and provides a pull request for evaluation. The agents are here and helping us do more!
What if you could use ElasticSearch serverless? While at Build, Carl and Richard chatted with Ken Exner about the new announcements around Elastic providing serverless storage and search! Ken talks about paying for only the data you move and store with serverless, rather than needing to operate any infrastructure for Elastic. The conversation digs into the potential of Elastic in Azure AI Foundry to provide ultra-fast access to current company data for your LLM implementations. Elastic did vector databases before LLMs made them essential for RAG - and you can take advantage of it!
Do you understand how networking works in C#? Carl and Richard chat with Chris Woody Woodruff about his new book on networking with C#. Chris runs down the fundamentals of networking and then discusses the different approaches readily available in the C# world, including web sockets, gRPC, SignalR, and many more! The conversation also turns to the upcoming QUIC standards built into HTTP/3 that should simplify networking. Sure, you could go with the defaults, but why not explore all the options!
How do you secure browser-based frontends with ASP.NET Core backends? Carl and Richard discuss the Backend for Frontend (BFF) Security Framework with Erwin van der Valk. Erwin talks about Sam Newman's BFF Pattern and how it helps deal with the diversity of clients, including web, desktop, and mobile, to work with a common backend. OAuth 2.0 is capable of dealing with this complexity, but there are many moving parts, and that's where the security framework can help!
How do you balance architecture and code? Carl and Richard talk to Steve Smith about various architectural strategies and the swing back-and-forth against over-designing architecture and getting code written. Steve talks about how architecture changes depending on the size and number of teams, how the latest tools can help with architectural choices, and the challenge of effective refactoring when things need to change. Lots of great conversation!
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!
Comments (6)

Pete Davies

British Broadcasting CORPORATION.

Nov 8th
Reply

Dan Cook

I always listen to these hoping to learn something but switch off after 20 minutes of pointless cringy chat

Jun 4th
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John Rosenbaum

unable to download this issue. I submitted an issue for it

Apr 26th
Reply

Antonio Andrade

@wyze cameras are amazing, I have few. it doesn't detect CO2, just the alarm sound, but same with the fire alarm. they are unfortunately losing person detection, and not, they don't have face detection as the other cameras.

Dec 26th
Reply

Tanya Georgieva

Hello..the old episodes are failing to download. where are they downloadable from ? thank you.

May 24th
Reply (1)
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