901
Read your code
Stop vibe-coding blindly! Why reading AI-generated code is crucial in 2025. Avoid security flaws, architectural decay, and knowledge loss when using Claude Code or any other tool.
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 1,747 posts.
902
Did Semgrep Just Get a Lot More Interesting?
Documentation and guides from the team at Fly.io.
903
Windsurf SWE-1: Our First Frontier Models
Introducing our first Frontier Models!
904
Doom in Django: testing the limits of LiveView at 600.000 divs/segundo
Based on the latest tests I've published, Django LiveView appears to be the fastest dynamic frontend (I'm sure more variables can be measured). OK…
905
Erlang 28 on GRiSP Nano using only 16 MB
A modular embedded ecosystem—bare-metal hardware, software stacks, and a cloud platform for real-time IoT and distributed systems.
906
Relaxed Radix Balanced Trees (2024)
I’m adding immutable vectors to my language, Ivan, and needed to pick a suitable data structure to implement them. Clojure uses Persistent Vectors (PVs) which support lookups, updates, and appends all in ‘effectively’ constant time. However, it doesn’t have efficient insert or merge operations. Relaxed Radix Balanced…
907
Eurydice: a Rust to C compiler
Perhaps the greatest surprise of the last two years was, for me, the realization that people not only care about compiling C to Rust (for obvious reasons, such as, ahem, memory safety) – they also care about compiling Rust to C! Wait, what?
908
Is the doc bot docs, or not?
What are we even doing here??
909
910
Portals and Quake
Ever wanted to know how exactly did Quake’s precomputed visibility work? I did, so I wrote vis.py , a reimplementation of their algorithm in Python. This guide has all the information you need to understand vis , the tool used by Quake, Half-Life and Source Engine games.
911
Demystifying the (Shebang): Kernel Adventures
Clarifying the shebang (#!) mechanism: A step-by-step look using strace and kernel code shows how Linux handles script execution directly, revealing the shell isn't involved initially.
912
SuperSight: A graphical enhancement mod for Brøderbund's "Stunts"
Clickbait disclaimer: Stunts was actually created by Distinctive Software; Brøderbund was only the publisher. But nobody heard about Distinctive , and I wanted to be sure this article does not get confused with the one about Disney's Stunt Island . Sorry about that.
913
Testing is better than data structures and algorithms
People should spend less time learning DSA, more time learning testing.
914
Deepnote, a Jupyter alternative, is going open source
Explore data with Python & SQL, work together with your team, and share insights that lead to action — all in one place with Deepnote.
915
Trying out Zed after more than a decade of Vim/Neovim
After 15 years with Neovim, I'm trying out Zed as my daily driver text editor. In this post, I share why I'm switching and what my initial impressions are.
916
Nix Derivation Madness
I’ve written a bit about Nix and I still face moments where foundational aspects of the package system confounds and surprises me.
917
Cheating the Reaper in Go
Even though I am a C++ programmer at heart, Go fascinates me for none of the reasons you think. Go has made several interesting design decisions:
918
Yes, Claude Code can decompile itself. Here's the source code
These LLMs are shockingly good at deobfuscation, transpilation and structure to structure conversions. I discovered this back around Christmas where I asked an LLM to make me an Haskell audio library by transpiling a rust implementation. An “oh fuck” moment in timeOver the Christmas break I’ve been critically looking
919
Creating your own federated microblog
In this tutorial, we will build a small microblog that implements the ActivityPub protocol, similar to Mastodon or Misskey, using Fedify, an ActivityPub server framework.
920
Speeding up PyTorch inference on Apple devices with AI-generated Metal kernels
Our lab investigated whether frontier models can write optimized GPU kernels for Apple devices to speed up inference. We found that they can: our AI-generated Metal kernels were 1.24x faster across KernelBench v0.1 problems, and 1.87x faster across KernelBench v0 problems.
921
MCP vs. API Explained
Model Context Protocol (MCP) is an open standard that connects AI models to tools and data sources efficiently. This guide breaks down MCP’s architecture, benefits, and how it differs from traditional APIs
922
JJ Cheat Sheet
I’ve been learning Jujutsu a.k.a. jj , a version control system that’s compatible with git repos. It’s clicked for me in a way that git hasn’t even after many years of use.
923
924
The /o in Ruby regex stands for "oh the humanity "
Your code using the /o modifier Source: wikipedia Hi there! Do you like Regex? Do you like performance? Do you like creating confounding bugs for yourself rooted in the mechanics of the Ruby VM itself? If you said yes to all of the above, have I got a feature for you! But first, let’s start with a story. The cliffs of…
925
What’s new in Swift 6.2
Raw identifiers, backtraces, task naming, and more.
926
927
AI agent benchmarks are broken
Benchmarks are foundational to evaluating the strengths and limitations of AI systems, guiding both research and industry development.
928
Xcode constantly phones home
Building StopTheMadness Pro in Xcode is usually very fast, because my project doesn't use any Swift. It's a combination of Objective-C, which compiles much more quickly than Swift, and JavaScript, which doesn't need to be compiled. However, sometimes the builds were very slow for some strange reason. Checking the…
929
How X-Plane Works
X-Plane works by reading in the geometric shape of any aircraft and then figuring out how that aircraft will fly. […]
930
Safe C++ proposal is not being continued
One year ago, the Safe C++ proposal was made. The goal was to add a safe subset/context into C++ that would give strong guarantees (memory safety, type safety, …