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The most popular blog posts about software engineering on Hacker News. 14,544 posts.
Dear readers, we are extremely sad to inform you that Rainer passed away on October 6, 2025, surrounded by his closest family. After suffering from life-threatening pneumonia, Rainer decided against further life-sustaining measures that would have severely restricted his life. He passed away peacefully, accompanied by…
Intro Fuzzy search algorithms (also known as similarity search algorithms) are a basis of spell-checkers and full-fledged search engines lik...
For a long time I was looking for some time to play with Lasp: Lasp is a suite of libraries aimed at providing a comprehensive programming system for planetary scale Elixir and Erlang applications. Ye
In my previous post I introduced SQL virtual tables and how to use them in Go—registering modules per connection, defining schemas, and querying external sources as regular tables.
Then Back in the 2000s, we wrote applications in layers. Presentation layer, client, data transfer, API, business logic, data access, database. We maintained strict separation bet ween these layers…
Update: The paper version of this post is accepted at PLDI SOAP 2024. Take a look at the preprint (PDF).
My thoughts on Code School, an interactive online marketplace where you can learn to code directly in the browser.
Getting started with Zig's meta programming capabilities by leveraging a few useful functions
Please consider reviewing this guide on Amazon, if you’ll find it helpful. Few months ago, I had to debug a memory leak in Node.js. I found a good number of articles dedicated to the subject…
Writing a lisp compiler from scratch in JavaScript: 6. LLVM system calls
This is part one of a series “ Writing a GCC back end ”. The GCC back end is configured in gcc/config.host and the implementation is p...
Lessons on incentives and scaling from two years as a teaching assistant
Integers in programming languages have a valid range but arithmetic operations can result in values that exceed such ranges. For example, adding two large integers can result in an integer that cannot be represented in the integer type. We often refer to such error conditions as overflows. In a programming languages…
It's kicked the bucket, it's shuffled off its mortal coil, run down the curtain and joined the bleedin' choir invisible!!
Dream of developing software at a prestigious tech company like Google or Facebook, but don't have a CS background? We got your back!
A look into the implementation details of CPython's Global Interpreter Lock (GIL) and how they changed between Python 3.9 and the current development branch that will become Python 3.13.
Using an industry wide perspective I will show you the unseen downsides of using leetcode for interviewing software engineers
I don’t use CSS preprocessors they way many people do. Here’s an attempt to explain why.
I just finished reading the paper Borrow checking Hylo . It outlines the basic design of Hylo . Hylo is an early-stage programming language, but unlike other contenders of C++, it provides memory safety like rust. Specifically it merges rust’s borrow checking ideas into the framework of moveable value semantics (MVS)…
Update 2018-07. The branching model described here is called trunk based development. I and other people who I collaborated with did not know about the articles that used this name. Nowadays there are excellent web resources about the subject, like trunkbaseddevelopment.com. They have a lot of...
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Static or dynamic, a program's design is written in its types.
Many people who use Rust for a bit - especially those who like the language but do not fall in love with it - feel a sense that there must be a smaller, simpler variation on the same theme which would maybe be a little less powerful, but would also be much easier to use. I agree with them, but I think they are almost…
Robert O'Callahan. Christian. Kiwi. Software guy. All content human-authored unless otherwise noted.
AI changes rewrite economics because codebases with clear, common patterns get more leverage than proprietary or inconsistent systems.
