Introducing tmux-rs

The user ported tmux from C to Rust, a process that took 6 months and involved manually translating ~81,000 lines of code, overcoming issues with C2Rust output and implementing a custom build process. The user encountered various challenges, including bugs, raw pointers, and goto statements, but was able to successfully reimplement the parser using the lalrpop crate and is now releasing a ...

Opening up ‘Zero-Knowledge Proof’ technology

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Google open sourced Zero-Knowledge Proof libraries to support EU age assurance and digital ID solutions, making it easier for developers to build private and secure applications. This move aligns with the European Union's eIDAS Regulation, encouraging Member States to integrate ZKP into the European Digital Identity Wallet.

Flounder Mode – Kevin Kelly on a different way to do great work

https://joincolossus.com/wp-content/uploads/2025/06/026_KevinKelly041725_Colossus_photobyAndriaLo-scaled.jpg
Kevin Kelly, a futurist and entrepreneur, has a non-traditional career path with multiple projects and interests, including editing, writing, and inventing. He emphasizes following one's interests and pursuing a direction rather than a destination.

Tools: Code Is All You Need

The author is critical of MCP due to its reliance on inference, which makes it harder to use and less efficient than writing code. They believe that code generation is a better choice for automation and task solving.

Astronomers discover 3I/ATLAS – Third interstellar object to visit Solar System

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Astronomers have discovered a new interstellar object, 3I/ATLAS, likely a comet, hurtling towards our Sun at 60 km/s. It's the third interstellar object found, with astronomers expecting to track it for at least eight months.

Peasant Railgun

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The Peasant Railgun is a hypothetical D&D tactic where a party hires 2,280 peasants to pass a dismantled ladder, doing 300d6 damage in one round. However, it's not feasible due to real-life physics and game mechanics issues.

Wind Knitting Factory

https://www.merelkarhof.nl/wp-content/uploads/2018/12/facadeview_windknittingfactory_merelkarhof.jpg
The Wind Knitting Factory is a wind powered machine attached to a building, knitting a long scarf downward. Its speed varies with wind conditions, knitting faster in windy weather.

AV1@Scale: Film Grain Synthesis, The Awakening

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Netflix has rolled out AV1 Film Grain Synthesis (FGS) streams to preserve film grain integrity while optimizing data efficiency. This innovation enables high-quality video streaming with significant bitrate savings and improved visual quality.

Baba Is Eval

https://fi-le.net/baba/level.png
The user is creating a demo version of Baba is You called Baba is Eval, a game that requires reasoning and problem-solving skills, similar to the proposed ARC-AGI-3 benchmark. They are implementing a Python MCP server to fetch the game state and control the level, and using a language model to solve levels, but are experiencing issues with latency and unreliable simulated inputs.

What to build instead of AI agents

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Hugo advises against building AI agents due to their complexity and brittleness. Instead, he recommends simpler patterns like chaining, routing, and orchestrators for most tasks.

Launch HN: K-Scale Labs (YC W24) – Open-Source Humanoid Robots

Ben from K-Scale Labs is building open-source humanoid robots to make them affordable for indie hackers and developers. They're offering a base robot for $8999 with a "Full Autonomy" option for free upgrades until the robot is fully autonomous.

Poor Man's Back End-as-a-Service (BaaS), Similar to Firebase/Supabase/Pocketbase

https://opengraph.githubassets.com/0086fa925ca4655f8a88f83bb58496dca9e06e21ac512f860f61a2b3412dc12a/zserge/pennybase
Pennybase is a lightweight backend framework in Go that stores data in human-readable CSVs and provides a REST API with basic auth and session cookies. It supports rendering HTML templates and has a hook system for custom validation and modification of resource data.

I scanned all of GitHub's "oops commits" for leaked secrets

https://framerusercontent.com/images/QaJr85hoCYMZZeUSiV7HloTxelY.png?scale-down-to=512
A white-hat hacker scanned all of GitHub's "Oops Commits" for leaked secrets and uncovered secrets worth $25k in bug bounties. The hacker used a new tool to scan the GitHub Archive for "Oops Commits" made by a GitHub organization or user account, revealing thousands of active secrets, including GitHub PAT tokens and AWS credentials.

Where is my von Braun wheel?

https://angadh.com/assets/imgs/WiP1/WebbGoodYear.jpg
NASA's decision to focus on the Apollo program led to the cancellation of rotating wheel space stations that could have provided artificial gravity. This decision set the US on a path of small, zero-gravity stations, but commercial companies are now exploring artificial gravity again for deep space missions.

Trans-Taiga Road (2004)

https://www.jamesbayroad.com/ttr/ttrmap_sm.jpg
The Trans-Taiga Road is a 666 km gravel road in eastern Canada, leading to remote Hydro Quebec settlements with no public access. It's the farthest road from a town in North America, with rough terrain and limited services.

Whole-genome ancestry of an Old Kingdom Egyptian

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Human remains were excavated from the nuwayrat necropolis near beni hasan, egypt. new radiocarbon dating was generated for the individual that yielded dna from nuwarat (nue001) merged the sequencing data from five libraries showing an absence of present-day human dna contamination, yielding a total of 135,606,409 mapped unique reads of 44.63 bp on average. average genome-wide

Robots move Shanghai city block [video]

Gmailtail – Command-line tool to monitor Gmail messages and output them as JSON

https://opengraph.githubassets.com/37eb28adede763744c7f1115e0f9e566d2e648d95dfb42ac28ce92e09d1709ec/c4pt0r/gmailtail
The user is using the Gmailtail tool to monitor and output Gmail messages in JSON format for automation and integration. The tool supports various features such as filtering, formatting, and checkpointing.

The uv build back end is now stable

The uv build backend is a native build backend for uv that integrates tightly with uv to improve performance and user experience. It supports pure Python code and has reasonable defaults, but also provides flexible configuration for most Python project structures.
https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
Researchers have made significant advancements in AI, particularly in large language models, and are exploring its application in scientific research. A comprehensive survey on AI for Research (AI4Research) is presented to address the gap in understanding and development in this field.

Show HN: HomeBrew HN – Generate personal context for content ranking

Click 'Get Recommendations' to see personalized HN posts!

Postcard is now open source

https://www.contraption.co/content/images/2025/07/sutro.jpg
Philip Ithomas launched Postcard in 2022 as a personal website and newsletter, which gained popularity and thousands of users. He is now open-sourcing the source code, simplifying it for solo use and including a Dockerfile for easy deployment.

Michael Madsen has died

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Abrego Garcia Was Beaten and Tortured in El Salvador Prison, Lawyers Say

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The End of Moore's Law for AI? Gemini Flash Offers a Warning

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Google increased the price of its Gemini 2.5 Flash model due to high demand for batch tasks and unprofitable workloads. This signals a turning point in the AI industry, where costs have hit a fundamental floor.

High-fidelity simultaneous speech-to-speech translation

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
Hibiki is a decoder-only model for simultaneous speech translation that synchronously processes source and target speech. It achieves state-of-the-art performance in translation quality, speaker fidelity, and naturalness.

Locality of Behaviour (2020)

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Locality of Behaviour is a principle that makes code behaviour obvious by keeping it within a small portion of the code. It's a subjective principle that must be traded off against other design principles for optimal maintainability.

Take Two: Eshell

http://yummymelon.com/devnull/images/opengraph-default.jpg
The author reflects on their experience with Eshell, initially being disappointed but eventually finding it an essential part of their Emacs workflow. They now use Emacs modes for tasks they previously used the shell for.

Mysterious life form found on ship that docked in Cleveland

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A ship docked in Cleveland had a mysterious tar-like substance oozing from its rudder post, which was later discovered to contain a previously unknown form of life. The substance, named ShipGoo001, is believed to be a single cell organism with unknown appearance and may be carbon-based and derived from Lake Erie water.

N-Back – A Minimal, Adaptive Dual N-Back Game for Brain Training

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The N-Back test is a scientifically-backed cognitive training tool that improves working memory, attention, and fluid intelligence through regular practice. It involves remembering a sequence of stimuli and identifying matches from N steps earlier.

The uncertain future of coding careers and why I'm still hopeful

A friend in the tech industry is feeling anxious about their career due to recent layoffs and AI advancements. The author believes AI will augment human work, freeing us to focus on creativity and innovation, and that the future of tech careers is about being amplified by AI, not replaced by it.

Stalking the Statistically Improbable Restaurant with Data

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Cnn's john sutter explores the statistically improbable restaurant. the restaurant you wouldn't expect to find in a small american city is in new springfield, california. there are 305 restaurants in the city; mexican is the most numerous with 38 eateries. three of those cities are relatively close to one another, suggesting some sort of southern/midwest center for the nation’s culinary ...

CoMaps: New OSM based navigation app

https://www.comaps.app/news/2025-07-03/Announcing-Navigate-with-Privacy-Discover-more-of-your-journey/GA%20Announcement%202_1.webp
Exciting News! We're thrilled to announce the release of CoMaps to Google Play Store, Apple App Store, and F-Droid! · Free & Not-for-Profit: Our focus is on creating value for the community, not generating profit.

Development of a transputer ISA board

https://nanochess.org/img/transputer_board_1.jpg
The user built a transputer emulator in Javascript and then created a custom ISA board to run their old software on a PC, using KiCAD to design the board and Freerouter to autoroute the components. After several revisions and corrections, the user successfully built and tested the board, running their original Inmos Occam compiler and other software, and is now offering the PCB for sale to others.

CO2 sequestration through accelerated weathering of limestone on ships

Calcium carbonate dissolution is the dominant negative feedback in the ocean for neutralizing the acidity from rising atmospheric carbon dioxide. accelerating the naturally occurring processes can help maintain lower co2 values in arid regions - elisabeth m. ziveri, s. dong, and w. martin berelson analyzed the results of their ecco-darwin model based on data from the cali

Parallelizing SHA256 Calculation on FPGA

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A SHA-256 hash calculator was optimized for an FPGA by leveraging parallelism and reducing logic, resulting in a 12-core system that meets timing requirements. A Python driver was created to manage the FPGA and recover the original string from a given hash, demonstrating the potential of FPGAs in cryptography and cybersecurity applications.

Encoding Jake Gyllenhaal into one million checkboxes (2024)

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The user created an animated image of Jake Gyllenhaal on a hidden canvas shared with millions of internet users by using a series of checkboxes and base64 encoding. They achieved this by writing a script that toggled bits at a high rate, adding images and animation to the canvas, and exploiting a bug in the code that allowed them to animate the image in a few minutes.

Doom Didn't Kill the Amiga (2024)

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Commodore's lack of business savvy is doing it a disservice, writes john scott. he says the amiga was, for several years, the dominant home machine in europe - and it was shaped by its users 'in the dark' the last new unix workstation models were both launched in 2006, by ibm and sun, and could have been completely new machines, if they had been successful, as hoped

Can we test it? Yes, was can [video]

Impact of PCIe 5.0 Bandwidth on GPU Content Creation and LLM Performance

https://www.pugetsystems.com/wp-content/uploads/2022/08/PCIe_gen5_Bandwidth_Content_Creation.png
PCIe 5.0's increased bandwidth has a noticeable impact on GPU performance in content creation applications like video editing and motion graphics. However, the impact is minimal in offline rendering and AI applications, and running a GPU at reduced PCIe bandwidth may not be a significant issue in most cases.

Yurei – Open source social media researcher powered by Exa AI API and YouTube v3

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still in progress, not live on https://yurei.app/ yet, but you can clone it and try it out a simple opensource social media researcher powered by exa ai api and youtube v3. built with vercel's ai sdk. make a .env.local with:

Why the simplest desktop agent abstraction wins

https://framerusercontent.com/images/dhJxNA1tJMjvuKpzMfjYuTvRs.png
Bytebot is an AI agent that uses a simple interface of keyboard, mouse, and screen to interact with digital work, approximating human workflows without custom integrations. This approach is more robust, generalizable, and future-proof, allowing the agent to operate reliably as models improve, without requiring reorganization of workflows.

EBAF – eBPF Based Ad Firewall

https://raw.githubusercontent.com/Kazedaa/eBAF/main/assets/banner.png
Spotify's business model exploits artists and users by monetizing attention and underpaying creators. A clean, open-source adblocker called eBAF blocks ads at the kernel level, allowing users to opt out of this system.

Just Ask for Generalization (2021)

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The ability to “just ask” language-conditioned deep learning models for what you want has led to prompt engineering. the appeal of offline reinforcement learning methods is that you can get optimal policies from diverse, off-policy data without having to interact with the environment. if we want to find the solution (y_i) for a problem, we can set up dataset of paired problems and solutions ...

Demonstration of Algorithmic Quantum Speedup for an Abelian Hidden Subgroup

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Researchers demonstrated an algorithmic quantum speedup for a variant of Simon's problem using IBM Quantum superconducting processors. They achieved an exponential speedup for small values of the hidden period's Hamming weight and up to 58 qubits.

The Mystery of People Who Speak Languages

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Linguists say they can speak with an unstilted freedom that transcends rote mimicry. the more languages you learn, the easier it gets, says michael erard of the polyglot community. he says the best way to learn a new language is to practice it at home, in the company of friends - or even strangers, if you can stoop to the level of their native speaker...

LLMs as Compilers

The user envisions a future where LLMs act as compilers, transforming context into features, freeing engineers to focus on context, testing, and iteration. This shift would democratize access to engineering and increase feature development velocity, with reliability demonstrated through evaluations and testing.

Corrected UTF-8 (2022)

Corrected UTF-8 fixes design errors in UTF-8 by removing overlength encodings, skipping C1 controls and Unicode surrogates, and removing the artificial upper limit on code space. It adds offsets to codepoints to ensure unique encodings.

Hugging Your Cactus

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Robert Downey Jr's speech about "hugging the cactus" refers to embracing one's flaws and taking responsibility for wrongdoings. This journey involves healing, humility, and finding new meaning in life through forgiveness and self-awareness.

Is It Cake? How Our Brain Deciphers Materials

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Researchers studied how humans perceive materials, identifying 36 core dimensions that our brains use to sort materials. This understanding helps explain why we're fascinated by illusions that challenge our ability to recognize what things are made of.

Building Linux kernel on macOS natively

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You built a Linux kernel for Starina OS on macOS using Clang Built Linux and overcame issues with ld, gcc, and sed compatibility. The build process was smoother after using Homebrew to install GNU packages and LLVM tools.

Numerical Electromagnics Code (NEM)

https://www.nec2.org/6dipoles.gif
Jerry Burke and A Poggio wrote NEC2 in 1981 for the US navy, now available on most platforms. NEC2 is used for electromagnetic simulations, with resources available for users including documentation and mailing lists.

Serial SPI RAM Emulation on Raspberry Pi Pico RP2040 MCU

https://opengraph.githubassets.com/39a5d4be29e6b7b0ea60de01ac803e2c5f8f6610ff88c5346d4c21fc7157bf38/MichaelBell/spi-ram-emu
This project simulates an SPI RAM on the RP2040 microcontroller, implementing READ, WRITE, and FAST READ commands with strict timing requirements. The RAM simulation uses dedicated core1 and PIO instructions to meet the tight timing, with separate programs handling data in and out, and a custom memory map to reserve the 64kB memory region for the RAM.

Samsung delays $44B Texas chip fab – sources: 'there are no customers'

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Samsung is delaying the launch of its Taylor, Texas, fab due to difficulties in securing customers and a mismatch between the planned process node and current demand. The company plans to upgrade the site to manufacture 2nm process nodes despite the challenges and risks of wasting billions of dollars already invested.

Four integers are enough to write a Snake Game

https://www.andreinc.net/assets/images/2022-05-01-4-integers-are-enough-to-write-a-snake-game/snake.gif
The user is implementing a game of Snake with absurd limitations, storing the game map in a uint32_t and using macros for bitwise operations. The game uses curses for keyboard input and has a unique way of handling the snake's movement and direction.

Parametric shape optimization with differentiable FEM simulation

https://docs.pasteurlabs.ai/projects/tesseract-jax/latest/_images/3bdfa129b45b50c372e4201d7c5fd2c7e10002adf68073aafe4b501d0bb54e0b.png
A Tesseract pipeline is built using finite differences to enable differentiability of a non-autodifferentiable geometry operation, allowing for differentiable shape optimization of a parametric structure made of a linear elastic material. The pipeline is composed of two Tesseracts, one for the design space and one for the finite element method (FEM) solver, and is optimized using a ...

Head in the Clouds

https://www.commonwealmagazine.org/sites/default/files/styles/article_full/public/Pollen.jpg?itok=3MrPfVkg
Valéry's creation of Monsieur Teste personifies his own ambition to be a "witness who is pure intellect."

Will Scaling Solve Robotics?

This year's corl was the biggest yet, with over 900 attendees, 11 workshops, and almost 200 accepted papers. a number of arguments were made against scaling up models for robotics, says sam taylor of cnn - the co-chair of the conference helen mccartney of university of washington, drexel schulte. "real-world industrial and home applications

How I keep up with AI progress (and why you must too)

https://nilenso.com/images/people/atharva.webp
The author recommends a list of sources for understanding AI, including official announcements from labs, trustworthy individuals, and technical write-ups. They emphasize the importance of staying close to the source and assuming all reporting is wrong by default.