Towards the end of Wim Wenders’s excellent Perfect Days , the protagonist Hirayama is drinking beer under a bridge after he has seen a Businessman courting his crush. Suddenly the Businessman joins him under the bridge. As it turns out, things aren’t actually that simple but the point is their conversation takes them…
Our CPUs were dying, the bug was temporarily un-fixable, and we had no viable path forward. Here's how we managed to survive.
Currently, I'm working as an AI Engineer @ amber . But mostly I'm an open-source software developer. That means I work on software projects that are free to use, modify, and distribute. Why? Because I believe knowledge should be free and open to everyone.
Mac's Tech Blog
I have often been asked to distill the vast corpus of user interface design into a few key principles. While I was reluctant to do this, it turned out to be a good exercise to write “Golden Rules,” that are applicable in most interactive systems. These principles, derived from experience and refined over three…
Errata: Some significant mistakes were pointed out to me by email by Brendan MacDonell. I have included errata, but the results might not be reliable, so take this with pinch of salt! vmsplice is too fast Some programs use a particular system call “vmsplice” to move data faster through a pipe. Francesco already did a…
The videos have been uploaded , thank-you notes have been sent, and the kiddo has decided to play a little Minecraft on her own, so now I get to write some quick notes on EmacsConf 2024 .
Script for highlighting large videos in iCloud and a storage discrepancy
If you do just foo , the following justfile will write a single byte 0x0A to a file named bar:
In this tutorial, I will teach you how to write your own virtual machine (VM) that can run assembly language programs, such as my friend’s 2048 or my Roguelike . If you know how to program, but would like to gain a deeper understanding of what is going on inside a computer and better understand how programming…
I have recently done some performance work and realized that reading about my experience could be entertaining. Teaching to think is just as important as teaching to code, but this is seldom done; I think something I’ve done last month is a great opportunity to draw the curtain a bit. serde is the Rust framework for…
Unfortunately, like most aspects of the tax system, this steadily increases in complexity, and this year with the Canada Pension Plan including not just "base" premiums and "additional" premiums but also "second additional premiums", I needed to rewrite my spreadsheet from scratch; and also very unfortunately, the…
We really did this! We work in a very large Javascript monorepo at Microsoft we colloquially call 1JS. Using some new changes to the git client it went from 178GB to 5GB.
The Game Boy Advance is an interesting game console. It has a modern-style CPU (32-bit ARM, lots of registers), but uses an old-fashioned tile based renderer like how the NES did it in the 80s. Don’t get me wrong, since its one of Nintendo’s last tile-based systems, they took the idea as far as it can go with fancy…
Here’s a fact: GPT-4o charges 170 tokens to process each 512x512 tile used in high-res mode. At ~0.75 tokens/word, this suggests a picture is worth about 227 words—only a factor of four off from the traditional saying. (There’s also an 85 tokens charge for a low-res ‘master thumbnail’ of each picture and higher…
OK, so C# doesn’t share the Rust concept of “borrowing,” so it wouldn’t technically be correct to call this “borrow checking,” but in practice when people talk about “Rust’s borrow checker” they’re talking about all of the static analysis Rust does to ensure memory safety, for which I think this qualifies.
This post translates a Python program to a recurrent neural network. It visualizes the network and explains each step of the translation in detail.
An old document I surfaced with my quick tour of distributed systems theory fundamentals
I have been tinkering with the vanilla source code of Wolfenstein 3D from 1992. Even though it is more than 20 years old and has rotten for modern systems, you can still compile it if you recreate the environment. All you need is :
A new paper from Google Research describing custom syntax for analytical SQL queries that has been rolling out inside Google since February, reaching 1,600 "seven-day-active users" by August 2024. A …
If you have discipline to throw away your first idea, draft, throwaway PRs often drives more progress than a design doc.
It has been three days. The room is cold and dark, but your screens are blinding. You feel disoriented as you come in and out of dissociative episodes. Now and again, you laugh, to no accompaniment. Why are you here? Was this your fault?
This summer, I embarked on a side project to create a brand-new Palm OS game, and after less than two months of intermittent coding, I'm excited to announce that it's ready to be released to the public!
At work, we really like the basic simple idea of Htmx. Based on using Htmx in a non-trivial user interface, across a team, we’ve found that the following cases are actually not simple and are quite complicated.
The emerging golden age of home-cooked software, barefoot developers, and why the local-first community should help build it
Introduction The more I learn about Lua's design and implementation, the more impressed I am. It's very rare to see software that does so much with so lit...
In a previous article I've done the 'Hello, world!' of GUIs in assembly: A black window with a white text, using X11 without any libraries, just talking directly over a socket.
Last week I was helping a friend of mine to get one of his new apps off the ground. I can’t speak much about it at the moment, other than like most apps nowadays it has some AI sprinkled over it. Ok, maybe a bit maybe more just a bit – depends on the way you look at it, I suppose. There is a Retrieval-augmented…
