I currently publish two kinds of content on this site: articles and notes . I write all my articles in Astro Editor , with in-progress work committed to main as drafts and pushed to GitHub regularly.…

When I released Astro Editor in January, the website was a hastily vibe-coded single HTML file full of the purple gradients that LLMs love so much. I’ve been meaning to re-do it for ages while…

Fine-tuning π0.5, the open-source VLA from Physical Intelligence, to play chess on a 5 DOF arm, and ablating how much it really understands about the board, colors, and pieces.

What CSS would you implement if you had no or very low vision? Recently, a Blind friend wanted to know more about CSS. This is my attempt at a very minimal CSS file that cleans up a few browser…

The public conversation about who wins in AI is almost entirely a conversation about hardware. Who has the most accelerators, who controls the fabs, whose export-control list bites whose supply…

Today’s starred repositories:

No matter what you’re doing, from building a civilization on Mars to getting a summer internship, you will have to ask people for help. Yet, most people get this crucial skill wrong. They put…

After nearly two decades on big tech platforms, I built my own social media home — posting on my own domain first and syncing everywhere else.

Effective AI-driven vulnerability discovery does not require a restricted frontier model. Here is a concrete run that shows it, start to finish: I pointed IronCurtain’s vuln-discovery workflow…

AI makes custom software easier, but reliable open-source building blocks become more valuable as teams build more ambitious systems.

Every AI agent is built on the same simple pattern: call the model, run the tools it requests, and repeat. Here's how to build that loop from scratch, step by step.

I do not use LLMs or other "Generative AI" for prose or code, nor do I accept it from others as open source contributions. I do not discuss my prose or code with LLMs. I do not consult LLMs for…

Around December 2025, seasoned engineers noticed that frontier coding models now generated consistently high-quality code at a low cost. This has changed the dynamics of starting companies.

If the monitor you’re looking at right now has a sticky note with any of your passwords – please, get rid of it (note, not monitor) and change that password. This text can wait, don’t worry. Now, how…

Now update for June 2026

Introduction: Why ClickFix Attacks Are Popular In the beginning of June I presented the session ClickFix: The Gift That Keeps On Giving at OrangeCon. ClickFix emerged around 2024 and saw a 517%…

Everyone is suddenly talking about the software factory. Few have built one. Here is what it actually means, and the three properties every software factory must have.

As you may know from reading my previous blog posts or bio, I’m an avid hiker and lover of the outdoors. Lately, though, I’ve been thinking more actively about something I’ve always…

2024 Toyota Rav4 Cost of Ownership Analysis - Forecast vs Actual [!topics] Topics: FIRE 2024 Toyota RAV4 Hybrid XSE Summary Back in 2024 we purchased a Toyota RAV4 Hybrid. Before the purchase I…

The Entertainment Software Association has found the real threat to the video game industry. Not loot boxes. Not live service games that disappear after people pay for them. Not launchers, platform…

A website should not need a town square. This is, objectively, a ridiculous thing to say. My website is a static site. It has pages. It has notes. It has essays. It has an RSS feed, because I am…

PEI - Making Near Memory Computing Feel Like a Normal CPU Instruction So Tesseract made one thing obvious: Rewriting an entire application to execute near memory isn't exactly easy. That is precisely…

When you're ingesting a continuous external stream — live transit data, market ticks, IoT telemetry, whatever — the consumer's job and the job of interpreting what was consumed are tempting to bundle…

While some people have been thriving,

To celebrate Hannah's birthday, we took a trip to Death Valley. We had planned to go a few years back, and a bad storm forced us to cancel, so it was great to finally make it there. The reports of…

There's a lump of granite off the Ayrshire coast that used to be a volcano. Sixty million years of weather wore it down to the one part hard enough to matter, and we've made the world's curling…

Do you know that story about when Sally Ride was preparing to go to space for seven days, and NASA engineers asked her, would 100 tampons be enough? That’s how I am with planning a vacation and…

Look at that, yet more discussion of one piece. This time in a more timely manner.

When you say “I’m going to reverse-engineer a binary file format,” people picture C, or Python with struct, or Kaitai. Nobody pictures Ruby. Ruby is for web apps and DSLs and being pleasant; it is…

Latest in the series of “dime a dozen” ideas from my notes that I saw turning into reality sooner than later: That thought from a couple of months back An AI which learns a "company" Headline from…

Here are some blogs I read.

I last blogged about a “Tech Go Bag” in 2015, 11 years ago as I write this. A lot has changed so I thought it’s worth a re-review of my current setup.

Successes, Failures, and Lessons Learned from My Largest Project to Date.

Tip If you prefer to listen or watch instead of reading [highly unlikely since you came here, but still] I tried creating a video for the first time There is so much more to the internet than your…

Dokku is a self-hosted open-source Platform as a Service similar to Heroku. It's lightweight, stable, and supports both Buildpacks and Dockerfiles for application deployment.

The eighth episode of Wonders of Web Weaving is out: In Episode 8, I chat with Brennan, the author of brennan.day. We talk about, among other things, writing routines, building community in the indie…

A while back I wrote about Jupyter notebooks and all the little tricks that make them pleasant to work with. They’re great for poking at data and keeping code, notes and plots in one place. But if…

This is a stub blog post to share a blog post I wrote on the Purdue Hackers’ blog! Go read it here . It includes everything that I wanted to include during my BENTO talk but couldn’t due to time…

Last post I left a question hanging - the directional bets lost $3,184 when every one was supposed to have at least 7% edge. Analytics scripts I built gave me a clear picture but there is not a…

Ever since I first used Svelte , there was something about it that felt very “natural”. Something about the way code in Svelte is structured just felt like it was the right way to do things when…

Using NativeAOT to write a .NET GC in C#. In this part, we add support for finalization.

Due to shortages, RAM is very expensive right now. And it will probably continue according to (somewhat optimistic) forecasts. If this situation continues for a long time, how would it change our…

Chasers pursuing certificates for the 16-city 2026 North American Football Championship Special Event have until Friday the 3rd of July to work the NY/NJ station, W2C. After that date, W2C will no…

This article is an English version of my earlier post “【低レベルHaskell】Haskell (GHC) でもインラインアセンブリに肉薄したい！” (in Japanese). The translation was assisted by AI (if you don’t like reading AI-generated…

Mitchell Hashimoto says merge queues fall apart under AI agents. I run a merge-queue company, and he's half right. The queue isn't the thing that breaks.

Investment kickers, Helix's cap table hole

I was talking with friends recently about what changes when agents become a normal part of building software. One of them shared a story about reviewing a large agent-assisted change where the…