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Write thin to write fast
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Software Engineering
The most popular blog posts about software engineering on Hacker News. 1,517 posts.
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Functorio
You might have heard people say that functional programming is more academic, and real engineering is done in imperative style. I’m going to show you that real engineering is functional, and …
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Anatomy of a Terminal Emulator
How does a terminal emulator work? What are ANSI escape codes? Understanding terminal internals for development, fun and mischief.
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Things you can’t do in Rust (and what to do instead)
Transposing other language paradigms to Rust often reveals unforeseen issues. Here are some limitations of Rust and how to work around them.
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Simple Systems Have Less Downtime (2020)
The Maersk Triple-E Class container ship is 1,300 feet long, carries over 18,000 containers across 11,000 miles between Europe and Asia, and… Its entire crew can fit inside a passenger van. As a former naval architect and a current marketing consultant to startups, I found that
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Log4Shell Log4j vulnerability (CVE-2021-44228) – cheat-sheet reference guide
Summary of CVE-2021-4228 (Log4Shell), trivial RCE in log4j, a common Java logging framework. Includes list of affected platforms.
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Why Authorization Is Hard
There's a fundamental tension in authorization. Is it business logic or authorization logic? Should it be in the app, or separate? Let’s talk about what makes a
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3 lines of code shouldn't take all day
Reflections on my time at Electronic Arts and techniques used to improve iteration times in video game development
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How to implement a hash table in C
An explanation of how to implement a simple hash table data structure, with code and examples in the C programming language.
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PostGIS at 20, the Beginning
Twenty years ago today, the first email on the postgis users mailing list (at that time hosted on yahoogroups.com) was sent, announcing the first numbered release of PostGIS. The early history of PostGIS was tightly bound to a consulting company I had started a few years prior, Refractions Research. My first contracts…
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DNA seen through the eyes of a coder
Updates: 12th of September 2021: I’m writing a book on DNA! If you want to become a beta reader, or have suggestions, I’d love to hear from you! 8th of January 2021: This article has been revised and updated, scientifically and in terms of dead links. Revision made by Tomás Simões (@putadagravidade /…
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How C++ Resolves a Function Call
C is a simple language. You’re only allowed to have one function with each name. C++, on the other hand, gives you much more flexibility: You can have multiple functions …
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Debugging a Linux network stack crash via a single register value
It’s not every day that you get to debug what may well be a packet of death. It was certainly the first time for me. What do I mean by “a packet of death”? A software bug where the network stack crashes in reaction to a single received network packet, taking down the whole operating system with it.
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Maybe we could tone down the JavaScript (2016)
I’m having a really weird browser issue, where scripts on some pages just won’t run until about 20 seconds have passed. Whatever you’re about to suggest, yes, I’ve thought of it, and no, it’s not the problem. I mention this not in the hope that someone will help me debug it, but because it’s made me acutely aware of a…
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Why is my Rust build so slow?
I’ve recently come back to an older project of mine (that powers this website), and as I did some maintenance work: upgrade to newer crates, upgrade to a newer rustc, I noticed that my build was ta...
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Go 1.16 will make system calls through Libc on OpenBSD
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
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I don't want to learn your query language (2018)
This is a bit of a rant but I really don't like software that invents its own query language. There's a trillion different ORMs out there. Another trillion databases with their own query language. Another trillion SaaS products where the only way to query is to learn some random query DSL they made up.
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The Arduino IDE 2.0 beta
The Arduino IDE is the well-known software we all use to program our boards. Its development started in 2005 based on the graphical interface of the
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How fighting games use delay-based and rollback netcode (2019)
I would like to thank krazhier and Keits for taking hours out of their busy schedules to discuss technical aspects of netcode with me, and Sajam for taking time to answer interview questions and being supportive throughout the writing process. I would also like to especially thank MagicMoste for making all the…
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Best practices for REST API design (2020)
In this article, we'll look at how to design REST APIs to be easy to understand for anyone consuming them, future-proof, and secure and fast since they serve data to clients that may be confidential.
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Scaling monorepo maintenance
Today, GitHub can repack even the largest repositories we host in a fraction of the time it used to take. Here's how we did it, and why.
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A new ProtoBuf generator for Go
Although the main interface between applications and a Vitess database is through the MySQL protocol, Vitess is a large and complex distributed system, and all the communication between the different services in a Vitess cluster is performed through GRPC .
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Making Librem 5 Apps [video]
Purism makes premium phones, laptops, mini PCs and servers running free software on PureOS. Purism products respect people's privacy and freedom while protecting their security.
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V8 Sparkplug – A non-optimizing JavaScript compiler
In V8 v9.1 we’re improving V8 performance by 5–15% with Sparkplug: a new, non-optimizing JavaScript compiler.
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Comparing Svelte and React
Last year I created Pomodone , a small time tracking application based on the Pomodoro technique of working in 25 minute intervals. It's a pretty basic app; it has a 25 minute timer (that runs in a Web Worker) and saves a history of your "poms" to a small Firebase database. I initially built it using React (well…
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Programmers, teach non-geeks the true cost of interruptions (2014)
Interruptions are one of the biggest sources of inefficiency for programmers. Now, to be fair, they’re probably a big source of inefficiency for everyone, but relatively speaking, they’re worse for programmers. To understand what I mean, let’s take someone whose job is in sales. A lot of the day is probably spent on…
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How We Went All In on sqlc/pgx for Postgres and Go
Touring the ORM and Postgres landscape in Go, and why sqlc is today’s top pick.