Every Frame Perfect(opens in new tab)
How imprecise UI animations erode trust in product
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Self-Host Weekly (12 June 2026) (opens in new tab)
An ode to what was, and what could have been
Stroll Down Startup Lane - 2026(opens in new tab)
If you've ever been to PyCon, you know one of the best parts of the expo hall is Startup Row, a stretch of booths where early-stage companies built on Python show off what they're creating. But only attendees get to ...
When Perfection Is the Enemy of Quality Culture: Lessons from the Nuclear Security Enterprise(opens in new tab)
The culture in the Nuclear Security Enterprise (NSE), particularly with regards to quality, was without a doubt the best I've experienced. One thing that really made it great was the common understanding that perfection is impossible. While that may sound ...
Git commit prompt injection(opens in new tab)
It's now common knowledge that LLMs / AI agents are vulnerable to all kind of injections, so attackers are being more and more creative to find new entrypoints. One commonly
Suing The Government with Cindy Cohn(opens in new tab)
Come find Justin in-person and get FAFOFM stickers!Devopsdays - Portland, OR - September 8-10. Get 20% off tickets with FAFOFMEdgecase - Gooiland Hilversum, NL - September 24Taloscon - Amsterdam, NL - October 15-16KCD UK - Edinburgh - October 19Kubecon NA ...
Announcing stdx, Rust's extended standard library: simplicity, performance and supply chain security for everyone(opens in new tab)
From embedded firmware (where it's badly needed) to big servers passing by cross-platform applications used by billions of people, the foundations of the computing stack are being rewritten in Rust.
Day 4: Quantization Demystified. BF16, FP8, NVFP4, MXFP4, INT4, GGUF, and Why It All Matters(opens in new tab)
A practical, beginner-friendly guide to BF16, FP8, NVFP4, MXFP4, INT4, and GGUF Q4_K_M on NVIDIA DGX Spark. Bytes per parameter, quality vs size, and which format to pick when.
Microsoft Build 2026 recap(opens in new tab)
I spoke (a lot) at Microsoft Build in San Francisco!
I built a GoodReads reading stats dashboard(opens in new tab)
TL;DR - A dashboard visualizing your GoodReads data export. Try it now: GoodReads Dashboard. What is it A small site that visualizes your GoodReads data exports. Total pages and books read Top author...
golazo(opens in new tab)
A TUI for following football (soccer) matches in real-time.
#483: Thanks Brian(opens in new tab)
Topics covered in this episode: Vulnerability and malware checks in uv HTTP GET requests with the Python standard library Millions of AI agents imperiled by critical vulnerability in open source package alembic-git-revisions Extras Joke See the full show notes for ...
It doesn’t matter if it works(opens in new tab)
There are about a thousand and one debates about the ecology of AI, the ethics of AI, the governance of AI. As the technology advances, the debate with the slipperiest footing is on the actual efficacy of AI: does this ...
Silliness and Wrecklessness(opens in new tab)
I talked with my oldest daughter about silliness and wrecklessness today. She and her sister were playing too rough at bedtime and the younger slapped the...
From open source hits to OpenAI (Changelog Interviews #682)(opens in new tab)
This week I'm talking with Max Stoiber, currently working on ChatGPT's plugin directory and app platform at OpenAI. We discuss the hundreds of open source projects nobody remembers alongside the big ones like react-boilerplate and styled-components, how Spectrum became part ...
Self-Host Weekly (5 June 2026) (opens in new tab)
42 million Plex users can't be wrong
We are in the golden age of Open Source. Surf the wave until it crashes.(opens in new tab)
While a few people complain that AI is "stealing Open Source", training on Open Source code and giving nothing in return, I'm currently living the complete opposite: we are in
Day 3: The DGX Spark Unpacked. GB10, Unified Memory, sm_121, and the One Reason This Hardware Exists(opens in new tab)
A practical teardown of NVIDIA DGX Spark's GB10 Grace Blackwell Superchip, unified memory, sm_121, NVFP4 tensor cores, memory reporting, and decode limits.
Kubernetes Autoscaling(opens in new tab)
Workload and node autoscaling in 2026
How I made a 45-video course without wanting to die(opens in new tab)
Tips and tricks from me to you.
A pond of interesting problems(opens in new tab)
Async Rust: deep dive into cooperative scheduling and Tokio's architecture(opens in new tab)
Threads were designed to parallelize compute-intensive tasks. However, these days, a lot of applications (such as a network scanner) are I/O (Input / Output) intensive. Thus, threads have two significant
A survey of inlining heuristics(opens in new tab)
Compilers, especially method just-in-time compilers, operate on one function at a time. It is a natural code unit size, especially for a dynamic language JIT: at a given point in time, what more information can you gather about other parts ...
Wandler: Local OpenAI-Compatible Inference With Transformers.js and WebGPU(opens in new tab)
A practical Wandler deep dive with a local M1 Max WebGPU demo, real latency numbers, architecture diagrams, and getting-started commands.
The Case for Talking to Your Computer(opens in new tab)
I've always been a quiet person who prefers to write than to talk (though this may not be obvious based on the number of YouTube videos I've published). So it feels a little weird to say that I think ...
herdr(opens in new tab)
A tmux-like and agent-aware terminal multiplexer.
A Tale of Two Quality Cultures: The Importance of Quality Integration(opens in new tab)
Let's paint a picture of two very different environments, whose root differences can be largely traced back to differences embedded deep in their quality culture. Let's begin with what sadly is more likely to be the default state. "Quality isn't ...
From Kubernetes Dashboard to Headlamp: Understanding the Transition(opens in new tab)
For many people, Kubernetes Dashboard was their first window into Kubernetes. It offered a simple visual way to see what was running in a cluster, inspect resources, and build confidence without relying on the command line. For years, it helped ...
Terminal Trove May 2026 Wrap Up (opens in new tab)
A wrap up of all the things that happened in Terminal Trove in May 2026.
Front-End’s Missing Metric: The TBT Window(opens in new tab)
The TBT Window is the FCP-to-TTI interval used to calculate Total Blocking Time. If FCP or TTI moves, TBT can change even when long tasks do not.
Let the agents democratize open source(opens in new tab)
2026-06-01 Notes(opens in new tab)
yesterday: 2026-05-27-notes
#482: Mr. Beast's episode(opens in new tab)
Topics covered in this episode: CVE-2026-48710: A Maintainer's Perspective daily-stars-explorer Markdown to pdf with pandoc and typst postman2pytest Extras Joke See the full show notes for this episode on the website at pythonbytes.fm/482
Checking assembly with Z3(opens in new tab)
Short post today. New ZJIT contributor dak2 submitted a PR to fix an overflow bug in fixnum division in ZJIT. We did the division fine, but lied about the type of the result in the case of dividing FIXNUM_MIN by ...
Things I enjoy about Dungeons & Dragons(opens in new tab)
FWBG - Genesis - 3.3(opens in new tab)
The consequences of the fall were immediate and great:
God’s Zeal for Justice Amont Men Displayed in the Divine Counsel(opens in new tab)
link to sermon
AI Contributions and Maintainer Load in Open Source(opens in new tab)
You wake up, brew the coffee, open GitHub, and there it is. Another pull request on your open source project. Thirteen thousand lines added. No issue filed first. No discussion. Just "here, please review this for me." Over the past ...
Butter bells, fresh from the kiln(opens in new tab)
Revisiting the closed canon(opens in new tab)
A post I wrote in 2023, the closing of the canon, predicted that LLM answers would replace search results, dramatically lowering traffic to individual sites, thereby removing the incentives to even write along with building and maintaining websites. Unfortunately, this ...
Self-Host Weekly (29 May 2026) (opens in new tab)
We've officially reached the papal stage of the AI debate
mlxcel: A Rust-Native Inference Engine for Apple Silicon, Tested on My M1 Max(opens in new tab)
Day-one deep dive into mlxcel v0.1.0, a Rust-native MLX inference engine. Real M1 Max benchmarks vs mlx-lm and Ollama on Llama 3.2 3B and Qwen 2.5 7B, with architecture diagrams and an honest take on TurboQuant.
Reading Observability Tools? That’s a Robot’s Job(opens in new tab)
Last Thursday Honeycomb was kind enough to hand me the closing keynote slot at O11yCon, a conference whose entire premise is that observability matters and the people in the room are the ones who would know. I used that slot ...
Fleet: A Control Tower for Claude Code(opens in new tab)
A tmux dashboard for running many Claude Code agents at once — it shows which one needs you, sorted by urgency, so you stop polling and start responding.
We should be more tired than the model(opens in new tab)
Lately, I’ve been feeling like I’m losing control over the code I write when I work with agentic code generation. When I finish an agentic session, I get all the outward signs of having written code, but none of the ...
FWBG - Genesis - 3.2(opens in new tab)
Eve was tempted by sin by litening to the great deceiver. But it wasn't just that she ** the serpent, she participated in the conversation, she entertained...
2026-05-27 Notes(opens in new tab)
yesterday: 2026-05-22-notes
Keep calm and embrace (Rust) monorepos(opens in new tab)
Use monorepos My very unscientific analysis of the Rust ecosytem has come to the conclusion that Rust developers are wasting way too much time managing packages and dependencies. Whoever has
Day 2: Anatomy of an LLM Inference Request. From Prompt to Answer, Step by Step(opens in new tab)
A beginner-friendly walkthrough of tokenization, prefill, KV cache, decode, batching, TTFT, and why memory bandwidth shapes local LLM performance on NVIDIA DGX Spark.
How I use Claude Code as my personal assistant from my phone(opens in new tab)
For the past few weeks I've been using Claude Code from my phone and while it's not a 100% replacement for something like OpenClaw I've found it covers 80% of what I want without too many glaring secu...