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GitHub CLI is now in beta
We want your feedback about GitHub’s new command line tool that makes it easier to work with GitHub and reduce friction for many of your common workflows.
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 21,809 posts.
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I decompiled the White House's new app
The official White House Android app has a cookie/paywall bypass injector, tracks your GPS every 4.5 minutes, and loads JavaScript from some guy's GitHub Pages.
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Ruby core team takes ownership of RubyGems and Bundler
Dear Ruby community,
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Security issue related to the NPM registry
We're sharing details of recent incidents on the npm registry, our investigations, and how we’re continuing to invest in the security of npm.
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Software reuse is more like an organ transplant than snapping Lego blocks (2011)
People have been comparing software components to LEGO blocks for a couple decades. We should be able to assemble applications by snapping together modular components, just like LEGOs. There has been progress, but for the most part we haven't realized the promise LEGO-style software development. Integrating two…
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Building all of our new mobile apps using React Native
After years of native mobile development, we’ve decided to build all of our new mobile apps using React Native. As I’ll explain, that decision doesn’t come lightly.
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Font with Built-In Syntax Highlighting
An experiment in javascript-free syntax highlighting, made possible by opentype contextual alternates and COLR table
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I Miss Rails
The world of tech moves fast, and there’s always new frameworks and paradigms popping up that make developers’ lives easier and allow us to build more and more powerful applications. But, these transitions don’t always just make things better for developers - sometimes we take steps backwards and undo the progress we…
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Visual Studio for Mac
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Making WebAssembly a first-class language on the Web
This post is an expanded version of a presentation I gave at the recent WebAssembly CG meeting in Munich. WebAssembly has come a long way since its first release in 2017. The 1.0 version of WebAssembly was already a great fit for low-level languages like C and C++, and immediately enabled many new kinds of…
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Announcing Pipenv
I wrote a new tool this weekend, called Pipenv. Check it out on GitHub! Pipenv is an experimental project that aims to bring the best of all packaging...
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Hacker News now runs on top of Common Lisp
Hacker News was written in the Arc lisp dialect, a dialect created by Paul Graham. Arc was implemented on top of Racket, but that has now changed. HN runs on top of SBCL since (at least) September of 2024.But why? For performance reasons. I recently noticed that Hacker News no longer uses paging for long threads. In…
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GitHub CLI 1.0
GitHub CLI brings GitHub to your terminal. It reduces context switching, helps you focus, and enables you to more easily script and create your own workflows. Earlier this year, we…
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Push ifs up and fors down
A short note on two related rules of thumb.
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A video game where you are an operating system
Have you ever wondered what it's like to be an OS?
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Technical debt as a lack of understanding
Some time back, I was working on a project where it felt like the timebomb of technical debt was exploding in our faces. We couldn’t refactor the whoositz because of the whatsitz and when we asked about the whatsitz no one knew about the whatsitz and how it exactly worked with the whoositz and there certainly weren’t…
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Building GitHub with Ruby on Rails
Since the beginning, GitHub.com has been a Ruby on Rails monolith. Today, the application is nearly two million lines of code and more than 1,000 engineers collaborate on it daily.…
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1-Click GitHub Token Stealing via a VSCode Bug
My blog, mostly about programming
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A non-mathematical introduction to Kalman filters for programmers
Read my manifesto on Code as an alternative to Mathematics. Code for this article can be found on this Colab Notebook should you choose to follow along. Why Kalman Filters? Kalman filters are ingenius. If you have never heard of them, then a very intuitive (and arguably reductive) way to think about them is to
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Claude now has access to a server-side container environment
Describe what you need and get back ready-to-use spreadsheets, documents, presentations, and PDFs instead of just text responses. Update: Now generally available for paid plans with net network and egress controls (October 21, 2025).
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Magit, the magical Git interface (2017)
Blog of Jonas Bernoulli
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I used o3 to find a remote zeroday in the Linux SMB implementation
In this post I’ll show you how I found a zeroday vulnerability in the Linux kernel using OpenAI’s o3 model. I found the vulnerability with nothing more complicated than the o3 API ̵…
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Has UML died without anyone noticing?
Stuck with Sparx Systems Enterprise Architect? Time to upgrade to Microsoft PowerPoint.
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Ideal OS: Rebooting the Desktop Operating System
Twitter user ekse has graciously translated this blog to Chinese. Thanks! TL;DR: By the end of this essay I hope to convince you of the following facts. First, that modern desktop operating systems are anything but. They are bloated, slow, and layered with legacy cruft that still functions only thanks to Moore's Law…