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Engineering principles for building financial systems
Best practices and principles to create accurate and reliable software based financial systems.
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The latest blog posts to take off on Hacker News. 1,535 posts.
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Big Ball of Mud (1999)
While much attention has been focused on high-level software architectural patterns, what is, in effect, the de-facto standard software architecture is seldom discussed. This paper examines the most frequently deployed architecture: the BIG BALL OF MUD
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Things I learned while writing an x86 emulator (2023)
If you’ve read my first post about assembly language, you might expect that this is another post on how to understand assembly language. I will write more about that at some point, but this post is not that. Instead, this post is going to talk about some of the weird things and random trivia I learned while writing an…
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Docs as code (2017)
author, Eric Holscher& the Write the Docs community,. Documentation as Code ( Docs as Code) refers to a philosophy that you should be writing documentation with the same tools as code: Issue Tr...
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Scoped Propagators
A programming model for spatial canvases
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Real-time audio programming 101: time waits for nothing (2011)
“The audio processing thread is stalling because the client’s implementation of some XAudio2 callback is doing things that can block the thread, such as accessing the disk, synchronizing with other threads, or calling other functions that may block. Such tasks should be performed by a lower-priority background thread…
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Reverse engineering Ticketmaster's rotating barcodes
"Screenshots won't get you in", but Chrome DevTools will.
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Python Has Too Many Package Managers
Overview of Python's Package management ecosystem in 2024
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Inline previous result in Emacs Lisp
Artur Malabarba's Debugging Elisp Part 1: Earn your independence is nearly a decade old, yet it rings just as true today. Learning to Edebug really *"...
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Using the 5S Principle in Coding
A few years ago, I read The Toyota Way, driven by my curiosity about the origins of Agile software development. However, I became even more…
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Properly testing concurrent data structures
There's a fascinating Rust library, loom, which can be used to thoroughly test lock-free data structures. I always wanted to learn how it works. I still do! But recently I accidentally implemented a small toy which, I think, contains some of the loom's ideas, and it seems worthwhile to write about that. The goal here…
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Compile-time JSON deserialization in C++
(Discussion on HackerNews)
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Put the DVD logo in the corner (2023)
A blog about making a game to achieve my childhood dream (of getting the DVD logo in the corner)
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I have no constructor, and I must initialize
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?
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“Technical” Skills
If you've ever said "soft skills" and felt weird about it, this essay is for you
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The sad state of property-based testing libraries
Property-based testing is a rare example of academic research that has made it to the mainstream in less than 30 years. Under the slogan “don’t write tests, generate them” property-based testing has gained support from a diverse group of programming language communities. In fact, the Wikipedia page of the original…
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Jeffrey Snover and the Making of PowerShell
What if you had to fight against your company's culture to bring a revolutionary tool to life? Meet Jeffrey Snover, the Microsoft architect behind PowerShell, a command tool that transformed Windows system administration. Initially met with skepticism, Snover's idea faced resistance from a company that favored…
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Building a data compression utility in Haskell using Huffman codes
In this post we will implement a data compression program in about 150 lines of Haskell. It will use Huffman coding and handle arbitrary binary files using constant memory for encoding and decoding.
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Sans-IO: The secret to effective Rust for network services
Learn how Firezone uses the sans-IO pattern to build testable, deterministic Rust networking code. A deep dive into our connlib design.
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The Origins of DS_store (2006)
If you are a Mac user, or if you have transferred files from Mac to Windows, you’re probably familiar with .DS_Store files. But where does this name come from?
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Beating NumPy matrix multiplication in 150 lines of C
A detailed blog post on optimizing multi-threaded matrix multiplication for x86 processors to achieve OpenBLAS/MKL-like performance. Tags: High-performance GEMM on CPU, Fast GEMM on CPU, High-performance matrix multiplication on CPU, Fast Matrix Multiplication on CPU, Matrix multiplication in C, GEMM in C, Matrix…
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A practical introduction to constraint programming using CP-SAT and Python
We discuss constraint programming, an approach to solve discrete optimization problems, and illustrate how it works with a scheduling code example implemented in Python with the CP-SAT solver.
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Writing GUI applications on the Raspberry Pi without a desktop environment (2019)
In a previous article, I explained how I set up a TFT LCD screen on my Raspberry Pi. Because I had been previously using my Pi as a headless server, I hadn’t installed a desktop environment. I wanted to add a lightweight heads-up display to the server, and I wanted a graphical application that could operate without X…
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Python Modern Practices
Good development practices for modern Python
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Exploring biphasic programming: a new approach in language design
I’ve noticed a small but interesting trend in the programming languages space. I’m not sure how novel it is, but this pattern, which I’ll refer to as “biphasic programming,” is characterized by languages and frameworks that enable identical syntax to express computations executed in two distinct phases or environments…
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Booting Linux off of Google Drive
Competitiveness is a vice of mine. When I heard that a friend got Linux to boot off of NFS, I had to one-up her. I had to prove that I could create...