Why Romania excels in international Olympiads
Olympiads are international student intellectual competitions in which students from across the world go toe-to-toe answering questions in mathematics, physics, informatics, chemistry, and more. The best performers tend to be from countries like China, the United States, India, and Japan. But, somehow, the southeastern European country of Romania also frequently tops the list. Since 2020, […]
Nginx-CGI brings support for CGI to Nginx and angie
Brings CGI support to Nginx and Angie webserver. OS Tested with Nginx Angie Linux AlmaLinux 9, Debian 12 and Ubuntu 24.04/20.04 okay okay Darwin MacOS 15.1 okay okay BSD FreeBSD 14.2 and OpenBSD 7.6 okay okay Solaris OmniOS r1510521 okay okay Windows No plan, nginx barely supports Windows Before everything CGI is neither a demon […]
Writing a Hypervisor in 1k Lines
I’ve wrote a tutorial on building a hypervisor from scratch in 1,000 lines of code (website). Few chapters are still in progress, but it’s already good enough to get you started. More specifically, type-1 hypervisor on 64-bit RISC-V with the hypervisor extension (on QEMU). The book is for developers who have finished Operating System in […]
Reusing Computation in Text-to-Image Diffusion for Efficient Image Generation
Abstract:Text-to-image diffusion models enable high-quality image generation but are computationally expensive. While prior work optimizes per-inference efficiency, we explore an orthogonal approach: reducing redundancy across correlated prompts. Our method leverages the coarse-to-fine nature of diffusion models, where early denoising steps capture shared structures among similar prompts. We propose a training-free approach that clusters prompts based […]
The Theoretical Limitations of Embedding-Based Retrieval
Abstract:Vector embeddings have been tasked with an ever-increasing set of retrieval tasks over the years, with a nascent rise in using them for reasoning, instruction-following, coding, and more. These new benchmarks push embeddings to work for any query and any notion of relevance that could be given. While prior works have pointed out theoretical limitations […]
The No-CPU Amiga Demo Challenge
This is an open challenge to create demos that run entirely on the Amiga custom chips without involving the CPU. This repository contains the rules of the challenge and a runner application for launching no-CPU demos. This is intended as a standard specification of the no-CPU platform for demo competitions. There will be a dedicated […]
Do the simplest thing that could possibly work
When designing software systems, do the simplest thing that could possibly work. It’s surprising how far you can take this piece of advice. I genuinely think you can do this all the time. You can follow this approach for fixing bugs, for maintaining existing systems, and for architecting new ones. A lot of engineers design […]
Data engineering and software engineering are converging
TL;DR: · If you’re an engineer building realtime analytics or AI-powered features, you need the right data infrastructure coupled with the right developer experience (DX). · A great DX for data infrastructure should empower both software devs and data engineers, while taking inspiration from the best of modern web development (git-native, local-first, everything as code, […]
Income Equality in Nordic Countries: Myths, Facts, and Lessons
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Hardware Flaw in Apple A16 Chip: Debug Logic Active on Production Devices
This repository documents a critical hardware-level vulnerability in the Apple A16 Bionic chip used in iPhone 14 Pro Max and related devices. The flaw allows debug logic—meant strictly for development silicon—to be executed on production-fused devices (dev-fused = 0) running stock, unmodified iOS with debug = 0x0. No jailbreak. No provisioning profile. No tampering. Just […]