Writing by hand is good for your brain

https://substackcdn.com/image/fetch/$s_!cI7w!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6d79ece7-543c-42fe-9b00-43be9a0ff89b_2544x2176.png
Writing by hand with a fountain pen on paper can be beneficial for the brain and reduce fatigue, but it requires finding the right balance of friction and using the right type of paper. To get started, consider using a fountain pen with a fine nib on inexpensive paper and gradually move to more expensive pens and paper as you develop your writing style.

What happened to TheNumbers.com

https://substackcdn.com/image/fetch/$s_!Jv4W!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F730e3c9b-f856-4142-ad5a-b0aa0ef37425_1186x668.jpeg
The Numbers, a film industry data website, was severely impacted by AI traffic and a potential cyberattack, leading to a week-long outage and significant changes to its infrastructure. The site's founder, Bruce Nash, attributes the issues to the increasing strain of AI bots and automated traffic, which now make up 90% of the site's traffic.

Building on ATProto

The user wants to build a suite of applications for recording reviews that allow users to choose how public or private they want their reviews to be, but is disappointed with the current design of ATProto, which assumes everything will be published online and doesn't support access control or private data. The user believes ATProto has the potential to be a new protocol empowering users, but ...

Software rendering in 500 lines of bare C++

https://haqr.eu/tinyrenderer/home/africanhead.png
The goal is to create a simplified 3D graphics API clone from scratch using OpenGL, Vulkan, Metal, and DirectX, focusing on understanding the underlying concepts rather than writing GPU applications. The initial task involves creating a software renderer that can load a 3D model and render it to an image file, starting with basic functionality to set pixel colors.

Learn OpenGL, extensive tutorial resource for learning Modern OpenGL

https://learnopengl.com/img/index_image2.png
This online book teaches modern OpenGL basics, intermediate, and advanced knowledge in an easy-to-understand format with clear examples. It's free and available online, with a physical copy also available for purchase.

A solid-state “atomic channel” for separating rare earth elements

https://pme.uchicago.edu/sites/default/files/styles/wide/public/2026-07/Chong_Liu_057.jpg.webp?itok=Yy4Wd3nP
Researchers at the University of Chicago and Northwestern University discovered a cleaner method to separate rare earth elements using a layered form of manganese oxide. The new approach relies on electrochemical intercalation and can differentiate rare earth elements in water without organic solvents.

Startup founders urge U.S. government not to shut off Chinese open weight AI

Silicon Valley startup founders are urging the Trump administration not to block access to Chinese open-weight AI models, warning that a ban would cripple US startups. They propose targeted safeguards instead of broad prohibitions to address security concerns.

Astronomers may have found the first exomoon

https://cdn.eso.org/images/newsfeature/eso2610a.jpg
Astronomers have discovered a moon-like object in the CD-35 2722 system, which orbits a brown dwarf, not a planet. This object is at least as massive as Jupiter and is difficult to label due to the system's unique characteristics.

Launch HN: Screenpipe (YC S26) – Record how you work and turn that into agents

Louis built Screenpipe, an app that records screen and audio locally to give AI agents a searchable memory of user activity, making it easier to automate tasks and create SOPs. Screenpipe's AI-friendly API allows users to interact with their recorded data through various agents, with a free tier and commercial plans available, including an enterprise plan for discovering automation opportunities.

JEP 540: Simple JSON API (Now in Incubator)

The Java Platform is introducing a new standard API for parsing and generating JSON documents, aiming to provide a simple and easy-to-use interface for common tasks, without requiring an external library. The API is designed to be strict and conform to RFC 8259, with a focus on machine-to-machine communication, and will be incubated in the JDK with the goal of eventually becoming a standard ...

Why Software Factories Fail (or: harness engineering is not enough)

https://raw.githubusercontent.com/humanlayer/advanced-context-engineering-for-coding-agents/main/images/loop-engineering-shadow.png
Dex from HumanLayer discusses the limitations of using AI coding agents in software development, citing issues with maintainability and code quality over time. He proposes a 4-phase approach to using AI in coding, including product review, system architecture, program design, and implementation, to help teams produce high-quality code.

Show HN: Palmier Pro – Open-source macOS video editor built for AI

https://raw.githubusercontent.com/palmier-io/palmier-pro/main/assets/palmier-ui.png
Palmier Pro is an open source Mac video editor that integrates AI into the workflow. It allows users to generate and edit videos with SOTA models and connect with agents like Claude/Codex/Cursor via MCP.

The arguments against open source AI are bad

https://tombedor.dev/assets/images/stack-66e4fd377352ecc706f357355068ebdf.png
The debate over open-source AI models is misguided, as history shows that suppressing open-source software is difficult and only weakens companies against international competitors. Open-source AI models can benefit the US economy, as they can be developed by various commercial actors, including American startups and chip makers, and can lead to innovation and growth.

Learn WebGPU for C++

https://eliemichel.github.io/LearnWebGPU/_images/resulting-code-light.png
This guide explains how to create native 3D applications in C++ using WebGPU graphics API for Windows, Linux, and macOS. It's still under construction and uses outdated code in some sections.

Show HN: OneCLI – OSS credential gateway that keeps secrets out of AI agents

https://raw.githubusercontent.com/onecli/onecli/main/assets/onecli-flow-light.gif
OneCLI is an open-source gateway that securely stores API credentials and injects them into AI agent requests. It provides a single point for managing access, rotating keys, and monitoring agent activity.

DARPA, U.S. Air Force fly AI-controlled F-16

https://www.darpa.mil/sites/default/files/gallery/2026-07/program-air-venom-testing-flight-2026.jpg
A US Air Force F-16 fighter jet has undergone in-air testing using an AI agent to autonomously control flight, advancing combat AI development. The VENOM program, a joint effort between the US Air Force and DARPA, aims to develop trusted, autonomous air combat capabilities.

Geekbench 7

https://www.geekbench.com/img/blog/2026/parkdale-windows-screenshot.jpeg
Geekbench 7 is a new version of the cross-platform benchmark that measures CPU and GPU performance with improved workloads. It includes new media workloads, a Game Physics workload, and updated data sets to better reflect real-world tasks and applications.

Hybrid-Electric Aicraft Engine Targeting 30% Fuel Efficiency

https://prd-sc102-cdn.rtx.com/-/media/rtx/news-images/2026/07/rtx-hybrid-electric-flight-demonstrator-1920x1080.jpg?rev=7cd920df0284419e8c72390b5da75dc6&rid=484c47c1c57049419588376ab77f24bf
Pratt & Whitney Canada is testing a flight-standard engine and propeller for the RTX Hybrid-Electric Flight Demonstrator in Quebec. The hybrid-electric propulsion system aims to demonstrate up to 30% improved fuel efficiency for regional turboprop missions.

Show HN: Trifle – Open-source analytics that stores answers, not events

https://trifle.io/landing.jpg
“ "With Trifle, we went from zero visibility into our pricing pipeline to catching anomalies before customers notice. The combination of Stats and Traces gives us both the big picture and the ability to drill into individual job executions." Data flows in, Trifle ensures correct tracking distribution. That makes it instantly queryable at any resolution. See the full walkthrough: ...

ICE Illegally Scooped Up Medicaid Data, Then Shared It with Palantir

https://www.techdirt.com/wp-content/uploads/2024/03/ctrl-alt-speech-logo.png
The Trump administration illegally shared Medicaid data with ICE, exposing home addresses and ethnicities, and then gave it to Palantir. The data sharing continues despite court orders, with Palantir claiming it was purged but skepticism remains due to lack of evidence.

From Evaluation to Guardrails: What We Brought to ACM FAccT 2026

https://storage.ghost.io/c/68/76/6876f0af-8955-4de4-a637-a5e7cc399136/content/images/size/w160/2026/01/Roya_Pakzad_image_hirez.jpeg
In June, we traveled to Montreal for the ACM Conference on Fairness, Accountability, and Transparency (ACM FAccT), the premier venue for safe and responsible AI development; a conference where computer scientists, social scientists, policymakers, and lawyers share a room to ask not just how to build AI systems, but whether, when, and for whom. It was the right audience for our tutorial, ...

AI Companies Are Trying to Hide a Staggering Amount of Debt

https://futurism.com/wp-content/uploads/2026/07/ai-companies-hide-debt-off-balance-sheet.jpg?quality=85&w=1152
Tech giants like Alphabet, Microsoft, and Meta are hiding $1.65 trillion in debt off their balance sheets, using special purpose vehicles to make their financial reporting appear healthier. This has experts warning of an AI bubble and increased vulnerability if the industry fails to generate demand to justify massive data center investments.

Converting Files into Minecraft Worlds

https://wuemeli.com/img/og-image.png
Did you ever want to store the Minecraft movie in Minecraft? No? Too bad, because now you can. I recently had the silly idea to convert a file into a Minecraft world. This led me down a really cool rabbit-hole, learning a ton about 3D geometry, byte layouts and Minecraft. The core idea is pretty simple: I want to take any file and be able to view it in Minecraft blocks. Along the way I also ...

Show HN: Remux – an open-source tmux workspace designed for iPhone

https://opengraph.githubassets.com/70e10e864ec8d39ab715d8847d186fa689445f635270ff5e737079f6d7499a5a/h3nock/remux
Remux is a native iOS client for remote tmux workspaces, offering a mobile-first interface with features like file preview and direct SSH connections. It provides shortcuts, attachments, and cursor control for efficient remote work.

Meta Garbage Collection: Using OCaml's GC to GC Rust

https://soteria-tools.com/_app/immutable/assets/opale.BNPXxV6i.jpg
Soteria Rust, a symbolic execution tool, experienced quadratic time complexity due to its Tree Borrows implementation, but was fixed by delegating garbage collection to OCaml's garbage collector, resulting in a 10x speedup. The fix involved implementing a "backoff" mechanism to run the OCaml garbage collector periodically when the tree exceeded a certain size, achieving linear execution time ...

Free way to get your data out of ChatGPT Business accounts

https://raw.githubusercontent.com/Conradqh/scrapemychats/main/docs/viewer-browse.png
The scrapemychats tool exports ChatGPT conversation history to a user's computer, creating a searchable offline archive. It works by driving a Chrome window on the user's computer, using their logged-in ChatGPT session, and captures conversation text, files, and images.

Show HN: Claude-thermos – keeps your Claude session warm for you

https://opengraph.githubassets.com/4e9795283c577dfdf7f2947f92f8a9e413a49ce7018cf585b808d769b0e38cad/izeigerman/claude-thermos
Claude Code's prompt cache expires after 5 minutes, causing expensive re-encoding. claude-thermos keeps the cache warm, preventing this tax.

OpenStreetMap: Admin_level for All Countries

https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/NicholasCountySignWV.jpg/250px-NicholasCountySignWV.jpg
Administrative boundaries range from large groups of nation-states down to small administrative districts. sometimes borders and rivers/roads (or other linear objects) are tagged together on one object or their nodes are glue together - this is undesirable if a user modifying... also modifies the border. the admin_level tag is used on relations that define an administrative area territories ...

Encryption and Globalization 15 Years Later: E2EE and the "Going Dark" Debate

Emacs Is a Lispboard

https://en.andros.dev/static/img/footer/org-social.svg
Emacs is a Lispboard, a working environment that integrates multiple programs, allowing users to work in a single place with a layout system and an embedded scripting language. Its rival is the web browser, but Emacs offers more flexibility and control, making it a unique and powerful tool for users.