2881
Mountains, Cliffs, and Caves: A Guide to Using Perlin Noise for Procedural Gen
Minecraft generates unique worlds with Perlin noise. Covers the algorithm, octaves, and Fractal Brownian Motion - with a terrain implementation walkthrough.
New
The latest blog posts to take off on Hacker News. 21,819 posts.
2882
Should managers still code?
Ah, the eternal question, straight from the mailbag.
2883
Solving First Order Differential Equations with Julia
In this tutorial, we will learn about solving Differential Equations with Julia. Differential Equations are everywhere in Science and Engineering problems. And, being able to solve Differential Equations using computers is very convenient. We will use the DifferentialEquations.jl package for solving Differential…
2884
Apple's Software Quality Crisis
Tim, I think we are not cooking
2885
The Differences Between Deep Research, Deep Research, and Deep Research
Dive into the world of AI engineering with this exploration of Deep Research in report generation. Learn how LLM-as-a-judge systems, machine learning, and ev...
2886
Hallucinations in code are the least dangerous form of LLM mistakes
A surprisingly common complaint I see from developers who have tried using LLMs for code is that they encountered a hallucination—usually the LLM inventing a method or even a full …
2887
Towards a test suite for TOTP codes
Because I'm a massive nerd, I actually try to read specification documents. As I've ranted ad nauseam before, the current TOTP spec is irresponsibly obsolete. The three major implementations of the spec - Google, Apple, and Yubico - all subtly disagree on how it should be implemented. Every other MFA app has their own…
2888
2889
Yoke: Infrastructure as code, but actually
Infrastructure as code, but actually
2890
Nebu: A Spreadsheet Editor for Varvara
By Devine Lu Linvega
2891
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…
2892
Abusing C to implement JSON parsing with struct methods
Json parsing in C using function pointers attached to a struct
2893
A Map of Python
PyPi, the Python Software Foundation's package repo, counts over half a million open source projects. Since I use many of these every day, it seemed appropriate to get to know this set of packages better, and show some appreciation. The index website provides nice search and filtering, which is good when looking for…
2894
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
2895
The cost of Go's panic and recover
TL;DR ¶ Some of the wisdom contained in Josh Bloch’s Effective Java book is relevant to Go. panic and recover are best reserved for exceptional circumstances. Reliance on panic and recover can noticeably slow down execution, incurs heap allocations, and precludes inlining. Internal handling of failure cases via panic…
2896
Emacs Tree-sitter custom highlighting
A few years ago I blogged about custom tree-sitter-based syntax highlighting in emacs . I started out with highlighting certain keywords in...
2897
When eBPF pt_regs reads return garbage on the latest Linux kernels, blame Fred
TLDR; Starting from Linux kernel version 6.9 on x86_64, there’s a new config option CONFIG_X86_FRED enabled and it adds 16 bytes to the starting point of a task’s kernel stack area, so you’ll need to account for this extra padding in your “raw” kernel stack & pt_regs lookup code. Update: It turns out that there’s a…
2898
Self-Hosting a Firefox Sync Server
Notes from a backend dev who builds and runs his own infra. Go, microservices, blockchain, self-hosting, homelab projects.
2899
3,200% CPU Utilization
A while back my machine was so messed up that I could barely ssh onto it. 3,200% CPU utilization - all 32 cores on the host were fully utilized! Compare that to my last bug where it only used 1 core, 100% Fortunately, it was using Java 17 runtime which...
2900
Postgres as a Graph Database: (Ab)Using PgRouting
Learn how to use pgRouting as a lightweight graph database solution in Postgres.
2901
Distributed systems programming has stalled
Over the last decade, we’ve seen great advancements in distributed systems, but the way we program them has seen few fundamental improvements. While we can sometimes abstract away distribution (Spark, Redis, etc.), developers still struggle with challenges like concurrency, fault tolerance, and versioning. There are…
2902
API design note: Beware of adding an "Other" enum value
What are you going to do when you add a new kind?
2903
The need for memory safety standards
For decades, memory safety vulnerabilities have been at the center of various security incidents across the industry, eroding trust in technology and costing billions. T…
2904
2905
Iterated Log Coding
I've created a new format for encoding real numbers on computers. I'm proud of it! Let's dive in.
2906
2907
Embedding Python in Elixir, it's fine
Introducing Python interpreter embedded in Elixir and a Fine way to write your NIFs.
2908
Vibe Coding and the Future of Software Engineering
Vibe coding (or vibeware) is making rounds on X now. To the best of my knowledge Andrej Karpathy started the “meme” in this X entry . I find it well written and hilarious and it seems to have taken off.
2909
How Core Git Developers Configure Git
What `git config` settings should be defaults by now? Here are some settings that even the core developers change.
2910
Gleam, Coming from Erlang
I recently took some time to try Gleam, the type-safe language that runs on the Erlang virtual machine. For a couple of weeks, I used it to build a little feed aggregator. These are my notes.