Pop Goes the Stack

Lori MacVittie

Explore the evolving world of application delivery and security. Each episode will dive into technologies shaping the future of operations, analyze emerging trends, and discuss the impacts of innovations on the tech stack.

Last refreshed: August 18th, 2025 at 4:42 AM ⓘ

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Episodes

Fine-tuning on a Budget

Big models, tight budgets? No problem. In this episode of Pop Goes the stack, hosts Lori MacVittie and Joel Moses talk with Dmitry Kit from F5's AI Center of Excellence about LoRA (Low-Rank Adaptation), the not-so-secret weapon for customizing LLMs without melting your GPU or your wallet. From role-specific agents to domain-aware behavior, we break down how LoRA lets you inject intelligence without retraining the entire brain. Whether you're building AI for IT ops, customer support, or anything ...

Aug 12, 2025•21 min•Ep. 6

Now Streaming: Your Status Updates

Google decided what you really wanted wasn’t answers, it was a podcast about your question. In this episode of Pop Goes the Stack, Lori MacVittie, Joel Moses, and F5 Community Evangelist, Aubrey King, discuss Google's new Search Labs project featuring AI-generated audio overviews. They dive into the implications of this technology, the evolution of dashboards, and the potential of narrative-driven interfaces. The hosts explore how AI and voice interactions are shaping the future, despite the ini...

Aug 05, 2025•22 min•Ep. 5

Securing AI Agents: Tackling the Non-Human Identity Crisis

In this episode of 'Pop Goes the Stack,' host Lori MacVittie and co-host Joel Moses are joined by F5 Sr. Solution Architect Peter Scheffler to delve into the pressing issue of securing AI agents. The episode highlights emerging vulnerabilities as AI agents enter enterprise environments, especially in light of poor security practices like hard-coded credentials. They discuss the dynamic nature of agent identity and authorization protocols and propose potential solutions including ephemeral creden...

Jul 29, 2025•23 min•Ep. 4

Chasing Logic Chains: Inference tracing

Dive into the intricacies of AI observability and decision-making with host Lori MacVittie and special guest Chris Hain. Lori and Chris discuss Anthropic’s open-sourced circuit tracing Python library tool and recent studies analyzing the internal workings of large language models (LLMs) during inference. They explore the growing need for advanced observability tools and the operational challenges involved in managing AI systems. From AI's decision-making complexities to the future of semantic o...

Jul 22, 2025•22 min•Ep. 3

AI Attacks: The App Security Arms Race

Hosts Lori MacVittie and Joel Moses are joined by F5’s Field CISO Chuck Herrin to dive deep into the implications of artificial intelligence on cybersecurity. They analyze the surge in AI-driven attacks, the challenges of defending against them, and the crucial role of fundamentals and observability in modern application security strategies. Learn about the democratization of AI, the evolution of intelligent threat vectors, and the importance of integrating AI native defense in your security sta...

Jul 15, 2025•27 min•Ep. 2

Multimodal Madness: The Darth Vader Debacle

In our inaugural episode of Pop Goes the Stack, Lori MacVittie and occasional co-host, Joel Moses, dive into the wild world of multimodal AI with guest Aubrey King. They discuss Fortnite's fascinating yet problematic AI-powered Darth Vader, a multimodal NPC driven by Google’s Gemini 2.0 Flash and ElevenLabs’ Flash v2.5, highlighting the technical mishaps and security pitfalls. The conversation explores the unique risks of multimodal AI in application delivery, where voice and text inputs create ...

Jul 08, 2025•24 min•Ep. 1

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