2641
I use Excalidraw to manage my diagrams for my blog
TL;DR I use an Excalidraw, wrap the elements of interest with a frame, name it with export_ prefix, my forked excalidraw extension automatically generates SVGs for light and dark mode.
New
The latest blog posts to take off on Hacker News. 3,710 posts.
2642
Good CTE, Bad CTE
The planner treats CTEs very differently depending on how you write them. Here's what happens under the hood, version by version, through PostgreSQL 18.
2643
The curious case of retro demo scene graphics
The demo scene has a peculiar view on copyright . It roughly boils down to a system of effort - effort in ideas, effort in craft - where the scene polices itself and punishes sceners that steal outright from other sceners. Theft from the outside world, however, is often taken lightly - especially when it comes to…
2644
Copilot edited an ad into my PR
After a team member summoned Copilot to correct a typo in a PR of mine, Copilot edited my PR description to include and ad for itself and Raycast .
2645
New Apple Silicon M4 and M5 HiDPI Limitation on 4K External Displays
A regression in external display support on Apple Silicon M4/M5 generation chips prevents full HiDPI modes on 4K monitors, limiting users to either blurry non-HiDPI or reduced workspace HiDPI.
2646
Coding agents could make free software matter again
I've been vibe-coding a lot lately. Like, a lot a lot
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2648
ChatGPT won't let you type until Cloudflare reads your React state
Edit April 2, 2026: I've been getting inbound interest from researchers wanting to run their own queries. The MCP integration I use for my own research lets you analyze live mobile telemetry continuously collected from real devices in the wild, directly from Claude. To access it reach out at
2649
More on Version Control
This may have some legs
2650
My MacBook keyboard is broken and it's insanely expensive to fix
The right arrow key on my Macbook Pro keyboard stopped working the other day. I say “stopped working”, but technically it works too well now, it is being pressed constantly, which makes the laptop pretty unusable.
2651
C++26 is done: ISO C++ standards meeting Trip Report
News flash: C++26 is done! 🎉 On Saturday, the ISO C++ committee completed technical work on C++26 in (partly) sunny London Croydon, UK. We resolved the remaining international comments on the C++26…
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The rise and fall of IBM's 4 Pi aerospace computers: an illustrated history
The morning of April 12, 1981, 20 years to the day after Yuri Gagarin became the first person in space, the Space Shuttle thundered into the...
2653
What category theory teaches us about dataframes
Every dataframe library ships with hundreds of operations. pandas alone has over 200 methods on a DataFrame. Is pivot different from melt? Is apply different from map? What about transform, agg, applymap, pipe? Some of these seem like the same operation wearing different hats. Others seem genuinely distinct. Without a…
2654
What if AI doesn't need more RAM but better math?
How TurboQuant compresses the KV cache without losing accuracy, and what that could mean for memory stocks
2655
A Recipe for Steganogravy
how to hide juicy data in plain sight
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From 300KB to 69KB per Token: How LLM Architectures Solve the KV Cache Problem
How the KV cache gives every AI conversation a physical weight in silicon, and what happens when the memory runs out.
2657
Bring Back MiniDV with This Raspberry Pi FireWire Hat
In my last post, I showed you to use FireWire on a Raspberry Pi with a PCI Express IEEE 1394 adapter. Now I'll show you how I'm using a new FireWire HAT and a PiSugar3 Plus battery to make a portable MRU, or 'Memory Recording Unit', to replace tape in older FireWire/i.Link/DV cameras. The alternative is an old used…
2658
CSS is DOOMed
Every wall, floor, barrel, and imp is a div — DOOM rendered entirely in CSS. Using 3D transforms, CSS math functions, @property, clip-path, anchor positioning, and SVG filters to build a fully playable 3D first-person shooter in the browser without Canvas or WebGL.
2659
The revenge of the data scientist
AI eval mistakes and the data science practices that fix them.
2660
The first 40 months of the AI era
Lzon.ca. A personal blog, by a programmer and IT expert.2026216 points144 commentsAI & Machine Learning details
A personal blog, by a programmer and IT expert. Essays, Articles, Guides, and Recipes. As well as Code, Quotes, and Links.
2661
TruffleRuby
TruffleRuby started as my internship project at Oracle Labs in early 2013. It is an implementation of the Ruby programming language on the JVM, using the Graal dynamic compiler and the Truffle AST interpreter framework . TruffleRuby can achieve peak performance well beyond that possible in JRuby at the same time as…
2662
Founder of GitLab battles cancer by founding companies
I’ve taken agency in the treatment of my bone cancer (osteosarcoma in the T5 vertebrae of the upper spine). After I ran out of standard-of-care treatment options and there were no trials available for…
2663
Linux is an interpreter
And why you would want to exec a cpio
2664
What major works of literature were written after age of 85? 75? 65?
EDIT: removed a couple of false positives based on comments from people. 2/04/2026: added a GitHub repository with data for this post
2665
Seeing like a spreadsheet
How the commercial spreadsheet reshaped America
2666
I decompiled the White House's new app
The official White House Android app has a cookie/paywall bypass injector, tracks your GPS every 4.5 minutes, and loads JavaScript from some guy's GitHub Pages.
2667
Treason in the Futures Markets
People close to Trump are trading based on national secrets
2668
Why are executives enamored with AI, but ICs aren't?
Executives love AI while ICs stay skeptical. The divide comes down to non-determinism: who is evaluated on judgment versus deterministic execution.
2669
Make macOS consistently bad unironically
Alongside the various bugs you get, one of the issues of upgrading to MacOS 26 is that it has one of the most notorious inconsistency issues in window corners. I'm not sure what exactly pushes product designers to like …
2670
Back to FreeBSD – Part 2 – Jails
Before we explore FreeBSD jails, it is worth refreshing our understanding of how Linux solved the same problem with LXC (Linux Containers).