Hi, I'm JamieTanna (he/him/his), and I'm currently a Senior Software Engineer at Elastic.
I currently live in Nottingham with my partner Anna Dodson and our cat Morph and our puppy Cookie.
I use my site as a method of blogging about my learnings, as well as sharing information about projects I have
previously, or are currently, working on in my spare time.
I'm a GNU/Linux user, a big advocate for the Free Software Movement, and the IndieWeb movement and I try to self host my own services where possible,
instead of relying on other providers.
I have ADHD (Inattentive Type) and am learning how to make my life work better around it.
Drop me an email at hi@jamietanna.co.uk, or
using any of the other social links below.
In this episode, Abi Noda speaks with Gilad Turbahn, Head of Developer Productivity, and Amy Yuan, Director of Engineering at Snowflake, about how their team builds and sustains operational excellence. They break down the practices and principles that guide their work—from creating two-way...
I'm joined by Philippe Ombredanne, creator of the Package URL (PURL), to discuss the surprisingly complex and messy problem of simply identifying open source software packages. We dive into how PURLs provide a universal, common-sense standard that is becoming essential for the future of SBOMs and securing the software supply chain. The show notes and blog post for this episode can be found at
Today's history lesson is about the non-markup language platform engineers love to hate, YAML Ain't Markup Language (YAML). Ingy tells us all about how and why it started, how it evolved over time, and what's happening next with YS. Note: sorry about the audio issues in this episode. We did our...
Jerod is joined by Carson Gross, the creator of htmx –a small, zero-dependency JavaScript library that he says, "completes HTML as a hypertext". Carson built it because he's big on hypermedia, he even wrote a book called Hypermedia Systems. Carson has a lot of strong opinions weakly held that we dive into in this conve...
In this episode of The Tech Trek, Amir sits down with Matt Moore, CTO and co-founder of Chainguard, to explore the escalating importance of software supply chain security. From Chainguard’s origin story at Google to the systemic risks enterprises face when consuming open source, Matt shares the lessons, best practices, and technical innovations that help make open source software safer and more reliable. The conversation also touches on AI’s impact on the attack surface, mitigating threats with engineering rigor, and why avoiding long-lived credentials could be your best defense.🔑 Key Takeaways:Security Starts with Engineering: Doing engineering right makes security (and even compliance) much easier.Control the Full Chain: Building from source and applying best practices at every build stage significantly reduces exposure to CVEs.Attackers Exploit the Edges: Most attacks start small—with a leaked credential or compromised dependency—and cascade through the ecosystem.AI Introduces New Vectors: As AI tools integrate deeper into dev workflows, they bring both value and new risks that require thoughtful containment.You Can’t Leak What You Don’t Have: Eliminating long-lived credentials is one of the simplest and most effective ways to reduce breach risk.⏱ Timestamped Highlights:00:45 – What Chainguard does: securing open source consumption and curating safe containers.02:56 – Chainguard’s origin story and co-founders’ experience at Google.06:50 – Building minimal, hardened container images from source to mitigate CVEs.09:40 – Real-world example: how compiler hardening flags protected Chainguard from a high-severity CVE.10:59 – The invisible sprawl of open source in enterprise stacks—from Kubernetes to AWS SDKs.15:45 – How leaked credentials power cascading supply chain attacks.22:30 – “You can't leak what you don't have”: Chainguard's credential-less auth approach.24:30 – Most breaches come from known vulnerabilities—not zero-days.25:38 – AI and security: new use cases, new threats, and the need for explainability.30:41 – AI adoption in enterprises: security best practices still apply, just to new tools and risks.34:43 – Learn more at chainguard.dev and explore hardened images at images.chainguard.dev.💼 Career Tips (from the episode):Don’t wait for zero-days: Most real-world breaches stem from unpatched, well-known vulnerabilities. Ship secure, stay patched.Build from source: If you're in a security or DevOps role, aim to build and control your stack from the source code up—this provides auditability and trust.Engineering rigor is a differentiator: Whether you're launching a startup or working in enterprise tech, applying fundamental engineering principles helps you scale securely.📚 Resources Mentioned:🛡️ OpenSSF Projects – e.g., SIGstore, Scorecards, SLSA.🛠 Projects Mentioned: Kubernetes, Istio, Flux, Tekton, Cert-Manager, Cloud Code.💬 Quote of the Episode:“If you do engineering right, security becomes easier. And if you do security right, compliance becomes easier.” — Matt Moore
Utpal Nadiger is the cofounder of Digger.dev. Digger built a popular open source IaC orchestration tool. Their new product Infrabase is an AI DevOps agent that ...
In this episode, Michael Lieberman, Co-founder and CTO of Kusari, walks us through the intersection of open source software and security. We discuss Mike's extensive involvement in OpenSSF projects like SLSA and GUAC, which provide essential frameworks for securing the software development life cycle (SDLC) and managing software supply chains. He explains how these tools help verify software provenance and manage vulnerabilities. Additionally, we explore regulatory concerns such as the Cyber Resilience Act (CRA) and the vital role of the recently released Open SSF Security Baseline (OSPS Baseline) in helping organizations comply with such regulations. Mike also shares insights into the evolution of open source security practices, the importance of reducing complexity for developers, and the potential benefits of orchestrating security similarly to Kubernetes. We conclude with a look at upcoming projects and current pilots aiming to simplify and enhance open source security.
00:00 Introduction and Guest Welcome
00:19 Mike's Background and Role in Open Source
01:35 Exploring SLSA and GUAC Projects
04:57 Cyber Resiliency Act Overview
06:54 OpenSSF Security Baseline
11:29 Encouraging Community Involvement
18:39 Final Thoughts
Resources:
OpenSSF's OSPS Baseline
GUAC
SLSA
KubeCon Keynote: Cutting Through the Fog: Clarifying CRA Compliance in C... Eddie Knight & Michael Lieberman
Guest:
Michael Lieberman is co-founder and CTO of Kusari where he helps build transparency and security in the software supply chain. Michael is an active member of the open-source community, co-creating the GUAC and FRSCA projects and co-leading the CNCF’s Secure Software Factory Reference Architecture whitepaper. He is an elected member of the OpenSSF Governing Board and Technical Advisory Council along with CNCF TAG Security Lead and an SLSA steering committee member.
Deepak Prabhakara is the CEO and Co-founder of BoxyHQ. BoxyHQ enables you to add plug-and-play enterprise-ready features to your SaaS product.What we coverAn in...
Thomas DePierre joins Open Source Security to discuss the central idea from his blog post, "You are all on the hobbyist maintainers turf now," exploring the massive disconnect between the corporate world that consumes open source and the hobbyist community that actually produces it. The conversation reveals this isn't a new problem, but a long-standing reality whose consequences for security, stability, and the future of software we are only now beginning to truly confront. The show notes and blog post for this episode can be found at
Don't forget to visit cupogo dot dev, where you can find links to all the things!🤖 Ezo Saleh - How We Built Rock-Solid Agentic Orchestration with Go🔥 Anubis🥨 Godump - pretty printer🪳 gcassert💧 isLitOrSingle
Josh Twist is the founder of Zuplo, an API gatewayIntroducing Josh Twist, the founder of Zuplo. 0:00Zuplo vs Azure API management.How do you make this fit into ...
How do you do onboarding in a way developers actually like?Kilian is the founder of Polypane - The browser for ambitious web developers https://polypane.app/Kil...
Justin Searls joins Jerod in Apple's WWDC wake for hot takes about frosty UIs. We go (almost) point-by-point through the keynote, dissecting and reacting along the way. Concentricity!
The Future of Sustainability in Open Source Can open source ever truly be sustainable?In this mind-bending episode, Hazel Weakly guides us through the social, economic, and emotional layers of open...
Getting out there, showing what you're currently doing / learning, starting a blog, creating content to help other software engineers, those are all good way to distinguish yourself. You might want to consider speaking at conferences as well. In this episode we're talking with Matt Boyle about...
Listened to
Kent Beck
by Gergely OroszPost details
Kent Beck—creator of Extreme Programming and co-author of the Agile Manifesto—reflects on decades of coding, from the birth of TDD to his experiments with AI tools shaping software’s future.
Listen to Scott & Mark Learn To... How Not to Ship the Org Chart from Scott & Mark Learn To.... In this episode of Scott & Mark Learn To, Scott Hanselman and Mark Russinovich discuss the concept of shipping the org chart, a term used to describe when different teams' outputs are inconsistently integrated, reflecting the organizational structure rather than a cohesive product. Scott recounts his experience test-driving an electric vehicle with a disjointed interface, which made him question the internal coordination within the automaker. Mark explains how Microsoft addresses this issue through standardization and tooling, emphasizing the need for consistent APIs and user experiences. They also debate the balance between maintaining consistency and fostering innovation, and how large tech companies like Microsoft and Apple manage these challenges. Takeaways: Establishing UX design standards helps maintain a consistent user experience across features Inconsistent design or functionality can impact user perception and trust in a product Integrating quality checks early (shift left) helps prevent issues and reduces later fixes Who are they? View Scott Hanselman on LinkedIn View Mark Russinovich on LinkedIn Listen to other episodes at scottandmarklearn.to Watch Scott and Mark Learn on YouTube Discover and follow other Microsoft podcasts at microsoft.com/podcasts Download the Transcript
Hosts Richard, Abby, and Eriol chat with Sarah Rainsberger of Astro about her journey from teaching math to open source, inclusive docs, and using low-tech tools like Chromebooks for coding.
We're on location at Microsoft Build 2025 with Amanda Silver, Corporate Vice President of Microsoft's Developer Division. Amanda leads product, design, user research, and engineering systems for some of the tools you use every day. We discuss the latest AI announcements from Microsoft at Build 2025, how AI is reshaping...
Go 1.24.4 and 1.23.10 releasedCommit 4d1c255: net/http: strip sensitive proxy headers from redirect requests🚫 [ On | No ] syntactic support for error handling by Robert Griesemer💉 You probably don't need a DI framework by Redowan Delowar🌩️ Lightning Round🗳️ Stack Overflow 2025 Developer Survey🪲...
The ever-provocative Steve Yegge joins us fresh off a vibe coding bender so productive, he wrote a book on the topic alongside award-winning author Gene Kim. Steve tells us why he believes the IDE is dead, why babysitting AI agents is more fun than coding, when vibe coding might take over the enterprise, how software d...
Last week, our colleague (and frequent Oxide and Friends guest) Steve Klabnik made some new friends on the Internet with a blog entry on AI discourse. Bryan and Adam were joined by Steve to try to de-polarize the discussion a little.In addition to Bryan Cantrill and Adam Leventhal, we were joined...
Welcome back to #define, our game of obscure jargon, fake definitions, and expert tomfoolery. We've gathered some awesome friends, new and old, to see who has the best vocabulary and who can trick the everyone else into thinking that they do.
We all use open source software on a daily basis. Even though the software is free to consume doesn't mean it's free to produce. Over the years, there have been many attempts to support open source...
99 Dev Problems features candid developer conversations on challenges, career growth, and tech trends. With insights, stories, and solutions from those in th...
I recently chatted with Andrew Nesbitt about his project, Ecosyste.ms. Ecosyste.ms catalogs open source projects by tracking packages, dependencies, repositories, and more. With this dataset Andrew is able to incredible insights into the world of open source. We chat all about how Ecosyste.ms works and how he manages to wrangle all this data. The show notes and blog post for this episode can be found at