josie.lol valid
josie.lol
Personal website of Josephine Pfeiffer, Senior Software Engineer at Red Hat. Linux userspace networking, Kubernetes (SIG Autoscaling, WG Node Identity), Arch Linux on s390x, Karpenter for IBM Cloud.
- Authority
- 45 reach 0 · trust 5 · quality 25 · freshness 15
- Tier
- listed
- llms.txt
- https://josie.lol/llms.txt
- llms-full.txt
- https://josie.lol/llms-full.txt
- Sections
- 2
- Links
- 11
- Size
- 3439 bytes
- Country
- Netherlands Hosting inference
- Hosting country
- Netherlands Hosting inference
- Country evidence
- No published address evidence collected yet
- Categories
- Infrastructure
- For agents
- Documentation: developer or product docs worth reading, nothing to call
- First seen
- 2026-10-23T10:57:03.793Z
- Last checked
- 2026-10-23T10:57:03.966Z
- Badge
Their llms.txt
The beginning of the file, from our validated copy saved 2026-10-23T10:57:03.810Z. Cached copy · Source on josie.lol
# josie.lol
> Personal website of Josephine Pfeiffer, Senior Software Engineer at Red Hat. Linux userspace networking, Kubernetes (SIG Autoscaling, WG Node Identity), Arch Linux on s390x, Karpenter for IBM Cloud.
josie works on infrastructure and security. she spends work hours on linux userspace networking, free time on porting distros to weird architectures, and contributing to CNCF projects. she unironically thinks s390x is cool and will argue about it. occasionally writes crystal, and likes electronics with transparent cases.
## About
- [Homepage](https://josie.lol/): bio, certifications, sameAs links
- [About](https://josie.lol/about/): projects, affiliations, FAQ
## Talks
- [touching grass (and 40-year-old c code)](https://josie.lol/talks/#talk-touching-grass): The Linux kernel, NetworkManager, glibc, OpenSSL, etc are codebases that aren't going anywhere but can seem quite arcane and unapproachable. This talk surveys the sense and nonsense of using contempor
- [Code Generation is O(1), Code Review is O(n)](https://josie.lol/talks/#talk-code-generation-o1-review-on): AI didn't make software cheaper. It moved the cost from writing code to understanding it, and dumped that bill on maintainers who never agreed to pay it. This talk names the mechanism: generation is O
- [From Static Tokens to Attestation: The Evolution of Secure Node Joining](https://josie.lol/talks/#talk-secure-node-joining): This panel examines secure node joining in modern Kubernetes environments where tools like Karpenter and Cluster API enable rapid infrastructure scaling. We discuss defining a root of trust, validatin
- [my mainframe runs arch btw](https://josie.lol/talks/#talk-arch-mainframes-lightning): A lightning talk exploring the journey of getting Arch Linux running on IBM mainframe hardware. Because if it runs Linux, it should run Arch.
- [Beyond CAS: Why the world needs another Kubernetes Cluster Autoscaler](https://josie.lol/talks/#talk-beyond-cas-karpenter): Kubernetes' Cluster Autoscaler (CAS) has been the standard for dynamic scaling, but it suffers from limitations that hamper its performance in some scenarios. This talk introduces Karpenter, a modern
- [Mainframes Aren't Dead, They're Just Running Kubernetes Now](https://josie.lol/talks/#talk-mainframe-kubernetes): Mainframes have been declared dead more times than JavaScript frameworks have been invented—but here they are, still running the backbone of global finance, government, and enterprise computing. And n
- [A Hitchhiker's Guide to Developer Productivity](https://josie.lol/talks/#talk-developer-productivity-guide): This talk explores how Golden Paths and Software Templates can revolutionize developer productivity by providing prescribed, automated practices for common development tasks. Using "The Hitchhiker's G
- [9001 Ways to break out of a container](https://josie.lol/talks/#talk-container-breakouts): Container security is essential, but what happens when the bad guys get creative? In "9001
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