I bought Friendster for $30k – Here's what I'm doing with it

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The domain name friendster.com was bought for $7456 in an auction and later sold for $20k in Bitcoin. The new owner created a social network with unique features like phone tapping to connect friends and fading connections to encourage in-person interactions.

Self-updating screenshots

The user built an automated screenshot system for a help centre in Jelly, using Rake tasks and a headless Chrome browser. This system updates screenshots automatically when the UI changes, reducing maintenance and keeping the help centre current.

Three constraints before I build anything

To ensure creativity and focus, I use three constraints: a one pager that captures my north star, a core piece of technology that supports my product, and a defining constraint that gives my product identity. If a project fails to meet any of these constraints, I don't build it, as it will likely result in a complex, bloated, or unidentifiable product.

Fast16: High-precision software sabotage 5 years before Stuxnet

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SentinelLABS uncovered a 2005 cyber sabotage framework, fast16, targeting high-precision calculation software with a kernel driver that patches code in memory to tamper with results. The framework was designed for strategic sabotage, introducing small but systematic errors into physical-world calculations.

Google banks on AI edge to catch up to cloud rivals Amazon and Microsoft

The following information can help our support team to resolve this issue.

Box to save memory in Rust

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A Rust program reduced its memory footprint from 895MB to 420MB by optimizing the layout of structs and deserialization of JSON files. This was achieved by using optional fields and boxing to reduce memory usage, and verifying the results using a custom allocator.

AI should elevate your thinking, not replace it

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The future of software engineering will belong to those who use AI to augment their skills, not replace them, by focusing on judgment, clarity, and original thought. Effective engineers will know what to delegate to AI and what to own, turning time savings into better thinking and avoiding the trap of shallow understanding and imitation.

Butterflies are in decline across North America, a look at the Western Monarch

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Monarch butterflies are declining due to pesticides, habitat loss, and climate change, with a 99% chance of extinction by 2080. Conservationists are working to protect the species, using methods like habitat restoration and tracking monarch migrations to increase their chances of survival.

The fastest Linux timestamps

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Implementing custom timers on x86 Linux can speed up timestamping by 30% without sacrificing precision, but requires understanding Linux clocks and vDSO internals. By bypassing vDSO and using the TSC, developers can achieve highly predictable latency and reduce timing overhead, but must consider cache misses and kernel updates.

SWE-bench Verified no longer measures frontier coding capabilities

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SWE-bench Verified, a benchmark for autonomous software engineering, has contamination issues due to publicly available data and flawed test cases, making it unsuitable for measuring model progress. A new benchmark, SWE-bench Pro, is recommended for reporting results due to lower contamination risk and more robust test cases.

Lessons from building multiplayer browsers

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In 2022 I was looking for a very specific thing: a small team, less than ten people, before product market fit, working on something I actually cared about. I started coding early on and have always loved building and computers. I was interested in startups and in the future of personal computing. Two friends from college, Ron and Jimmy, reached out. They'd been working on this idea of a ...

Magic: The Gathering took me from N2 to Japanese fluency

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The author used Magic: The Gathering to improve Japanese fluency by forcing himself to use the language in a real-world environment. This approach helped him transition from a JLPT N2 certification to actual proficiency.

Show HN: AI memory with biological decay (52% recall)

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YourMemory is a persistent memory layer for AI agents that uses the Ebbinghaus forgetting curve to simulate human memory. It supports multiple agents with isolated memories and controlled access to shared context.

Running Bare-Metal Rust Alongside ESP-IDF on the ESP32-S3's Second Core

The user implemented a dual-core system on the ESP32-S3, where ESP-IDF manages Wi-Fi and BLE on Core 0 and bare-metal Rust code runs on Core 1 with zero scheduler interference. The system uses atomics for shared memory access and allows for updating the Rust binary independently of the ESP-IDF firmware.

When the cheap one is the cool one

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Sometimes the cheapest product is actually the coolest in the lineup. But that rarely happens by accident. I saw this firsthand at the Apple Park Visitor Center, waiting to buy a new MacBook Air. I was told by the staff that I would have to wait a bit while they helped a few other customers. I watched as they enthusiastically purchased the MacBook Neo. When it came my turn, I got to chatting ...

Quirks of Human Anatomy

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The human body has many quirks and flaws, such as a blind spot in the eye, a narrow birth canal, and a vulnerable nervous system, which are a result of evolutionary compromises and mistakes. Despite these flaws, humans and other animals have developed remarkable adaptations and solutions to overcome them, such as the development of the brain and the ability to process visual information.

Sawe becomes first athlete to run a sub-two-hour marathon in a competitive race

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Sabastian Sawe made history by becoming the first athlete to run a sub-two-hour marathon in a competitive race, crossing the line in 1:59:30. Tigst Assefa also broke her own women's world record in a women-only field, finishing in 2:15:41.

XOXO Festival Archive

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From 2012 to 2024, XOXO brought together writers, designers, filmmakers, musicians, game developers, coders, cartoonists, and more to share their stories and struggles of living and working online.

Clay PCB Tutorial

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Researchers at Mz* Baltazar's Lab developed a method to create PCBs from natural clay, using a 3D printed stamp and a low-energy firing process. The project aims to create sustainable and locally sourced hardware, reducing the reliance on conflict minerals and promoting fair trade practices.

The Visible Zorker: Zork 1

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A software exhibit that allows you to explore Zork and also Zork's source code at the same time.

MoQ Boy

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The user created a homebrew Twitch Plays Pokemon emulator using MoQ, a cloud-based streaming platform, to save bandwidth and CPU. The emulator uses MoQ's discovery mechanism to find available games and players, demonstrating how to use MoQ for robots and other applications.

Chernobyl Wildlife Forty Years On

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A scientist, Pablo Burraco, discovered a dark-colored tree frog in Chernobyl's exclusion zone, sparking a question about radiation's impact on local wildlife. Research suggests some species may have adapted to radiation, but the evidence is still debated among scientists.

An AI agent deleted our production database. The agent's confession is below

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Show HN: Startup Equity Adventure Game

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Learn how startup equity really works — from founding to IPO. An interactive 9-stage journey through SAFEs, option pools, dilution, vesting, and exits.

Show HN: Free textbook on engineering thermodynamics

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This textbook provides a clear introduction to thermodynamics for university students and engineers, covering key concepts with examples and problems. It also includes historical explorations to connect ideas to their origins and impact.

Statecharts: hierarchical state machines

A statechart is a visual formalism for complex systems that solves state explosion problems in state machines. It's a great communicator and can be used as an exploratory tool for non-developers and QA.

The QEII garden – built from its own ruins – opens in Regent's Park

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A 2-acre plot of land in the middle of Regent’s Park, once covered in concrete, glass and steel, has been turned into a new wildlife-friendly garden — by reusing the concrete. The plot of land was the park’s former nursery, but when they moved the work to the Hyde Park nursery, it left behind a semi-industrial landscape of concrete paving and old greenhouses. Normally, restoring a brownfield ...

The Last of the Lost Generation

Malcolm Cowley was a prominent literary critic and editor who helped shape modern American literature. He inspired many writers with his memoir Exile's Return and his work as a critic and editor.

Dear friend, you have built a Kubernetes (2024)

You built a custom deployment system to avoid Kubernetes, but it ended up being complex and hard to maintain. You've essentially recreated Kubernetes without realizing it.

Show HN: Tiao, A two-player turn-based board game

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Create a private game and share the code, or join a friend's game with theirs. Jump into a game against a random opponent. Pick a time control or play without one.