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Building a Mac app with Claude code
How I built Context—a native macOS SwiftUI app for debugging MCP servers—almost entirely with Claude Code, and what I learned about building with AI coding agents.
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 1,747 posts.
1052
Should LLMs just treat text content as an image?
Several days ago, DeepSeek released a new OCR paper. OCR, or “optical character recognition”, is the process of converting an image of text — say, a scanned…
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The Case for Software Craftsmanship in the Era of Vibes
From the Zed Blog: Working toward genuine, quality software in an era where code production is not the constraint anymore.
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Implementing LLaMA3 in 100 Lines of Pure Jax
Hi, welcome to my website! This is where I share my thoughts on things that interest me, mostly tech, philosophy, history, and math.
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Four Years of Jai (2024)
I’ve been programming for long enough to be righteously cantankerous about a lot of things. The list of languages, frameworks and libraries I’ve worked with professionally or on personal projects is too long to list – but it includes everything from C and assembly languages through C++, Pascal and Delphi, through Java…
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Project Verona: Fearless Concurrency for Python
Research programming language for concurrent ownership
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Cryptographic Issues in Cloudflare's Circl FourQ Implementation (CVE-2025-8556)
The vulnerabilities we found in Cloudflare's CIRCL FourQ implementation: invalid-point attacks, Edwards-curve edge cases, and the disclosure that fixed them.
1060
JVM exceptions are weird: a decompiler perspective
Some time ago, I played around with decompiling Java class files in a more efficient manner than traditional solutions like Vineflower allow. Eventually, I wrote an article on my approach to decompiling control flow, which was a great performance boost for my prototype. At the time, I believed that this method can be…
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MonsterUI: Python library for building front end UIs quickly in FastHTML apps
Accelerate your UI development with MonsterUI, our Python library for building frontend UIs quickly in FastHTML apps.
1062
Getting decent error reports in Bash when you're using 'set -e'
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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Evolution of Rust Compiler Errors
Blog about programming stuff.
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Love C, hate C: Web framework memory problems
I love C. I could give you rational reasons for that. Like the fact that it works everywhere and how it goes fast. But mostly I love C because when I write C I feel an intimate connection with my computer. To me, C has soul. In fact all my personal project are written in C, like the graphics rendering engines that I'm…
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Configuration files are user interfaces
We have all been there. Your software keeps growing and you feel the need to make it customizable. It is too soon for a full-blown UI with all the bells and whistles, so your pragmatic instinct suggests a text-based configuration file. Yes, that’s exactly it! You rejoice knowing the software’s configuration will be…
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Darklang Goes Open Source
As part of shutting down Dark Inc. and forming Darklang Inc., we've finally open-sourced all of our repositories. Our source code is now under the Apache License 2.0. For years, we wrestled with questions of sustainability and how to build something that truly empowers developers. We've
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Garbage collection is useful
A long time ago, I spent a few years working on garbage collection in the J9 Java VM. 1 And even though I’ve since done mostly done higher-level stuff, having a deeper knowledge of GC has continued to come in useful.
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Pipelining in psql (PostgreSQL 18)
the psql client version 18 comes with pipelining, which can speed up client-server communication. In this post, let's see how it works and how much can be g...
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Why engineers can't be rational about programming languages
The neuroscience of why we make million dollar decisions based on identity, not data.
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Nearly all binary searches and mergesorts are broken (2006)
Posted by Joshua Bloch, Software EngineerI remember vividly Jon Bentley's first Algorithms lecture at CMU, where he asked all of us incoming Ph.D. ...
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How I like to install NixOS (declaratively)
For one of my network storage PC builds, I was looking for an alternative to Flatcar Container Linux and tried out NixOS again (after an almost 10 year break). There are many ways to install NixOS, and in this article I will outline how I like to install NixOS on physical hardware or virtual machines: over the network…
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Roto: A Compiled Scripting Language for Rust
By Terts Diepraam We are working on an embedded scripting language for Rust. This language, called Roto, aims to be a simple yet fast and reliable scripting language for Rust applications. The need for Roto comes from Rotonda, our BGP engine written in Rust. Mature BGP applications usually feature some
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The Whole App is a Blob
Building a Tamagotchi-style language learning iOS app with SwiftUI character animation - on drill design, motivation loops, and where Duolingo gets it wrong.
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Nim 2.2.6
The Nim Team is happy to announce version 2.2.6, the third patch release for our stable release, Nim 2.2.
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Customize Nano Text Editor (2022)
DevOps Engineer and Full-Stack Developer with 4+ years of experience in cloud infrastructure, CI/CD, and scalable web applications.
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Postgres as a Graph Database: (Ab)Using PgRouting
Learn how to use pgRouting as a lightweight graph database solution in Postgres.
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LSP client in Clojure in 200 lines of code
I wrote a small LSP client, it was kinda neat so I’m sharing it
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We chose OCaml to write Stategraph
OCaml's type system catches state corruption at compile time. Type-safe SQL, automatic serialization, and immutability by default prevent entire categories of bugs.
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A production bug that made me care about undefined behavior
Years ago, I maintained a big C++ codebase at my day job. This product was the bread winner for the company and offered a public HTTP API for online payments. We are talking billions of euros of processed payments a year.