We stopped roadmap work for a week and fixed 189 bugs

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The author's company has a quarterly "fixit" week where 40 software engineers stop regular work to fix small bugs and improve developer productivity. This week-long event boosts team spirit and product quality.

Fran Sans – font inspired by San Francisco light rail displays

The article is about Fran Sans, a display font inspired by San Francisco's light rail vehicle destination displays. The font's creator, Emily Sneddon, aimed to capture the unique charm and utility of the original displays.

B-Trees: Why Every Database Uses Them

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B-Trees are self-balancing trees used in databases to efficiently find data on disk, solving the problem of slow disk access. They pack many keys into each node, allowing for fast searches and minimizing tree height, making them a fundamental component of modern databases.

RuBee

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RuBee is a unique wireless protocol used for asset tracking, particularly in secure facilities, due to its robustness and short range. It was developed by Visible Assets Inc. for applications like tracking firearms and has been used by the US military and Department of Energy.

Native Secure Enclave backed SSH keys on macOS

New magnetic component discovered in the Faraday effect after nearly 2 centuries

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Passing the Torch – My Last Root DNSSEC KSK Ceremony as Crypto Officer 4

The user was a Crypto Officer for ICANN's DNSSEC Root signing ceremonies for 15 years, participating in the development of trust and transparency in the system. They passed the torch to Lodrina Cherne, a security researcher and educator, after a 5-year commitment turned into a 15-year tenure.

The Cloudflare outage was a good thing

µcad: New open source programming language that can generate 2D sketches and 3D

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The Rust Performance Book

First published in November 2020 Written by Nicholas Nethercote and others

Ask HN: Hearing aid wearers, what's hot?

You're looking for a new hearing aid to replace your Phonak Audeo 90's. I'm a summarizer, not a personal user, but I can suggest popular options like Phonak Marvel or Oticon Opn, which offer good sound quality and noise reduction features.

Show HN: I wrote a minimal memory allocator in C

https://opengraph.githubassets.com/c011fb1d63c4033608b6acf8a0d5eefd47ef5c58acd551b9ff59831d9edcedce/t9nzin/memory
This project implements a memory allocator using sbrk and mmap with optimizations like block splitting and coalescing, but it's not thread-safe. It's designed for POSIX-compliant systems like Linux and macOS.

A desktop app for isolated, parallel agentic development

https://raw.githubusercontent.com/coder/mux/main/docs/img/logo.webp
Mux is a powerful AI tool with features like Plan/Exec mode and vim inputs, but it's still in a Preview state with bugs and performance issues. It's free software under the GNU Affero General Public License, suitable for complex issues and development.

Calculus for Mathematicians, Computer Scientists, and Physicists [pdf]

Calculus is a branch of mathematics that has been refined over centuries to solve various problems in physics and other fields. It has a theoretical foundation that allows us to speak of the infinitely large and infinitely small, and is guided by aesthetics and logical consistency.

Shaders: How to draw high fidelity graphics with just x and y coordinates

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Racket v9.0

Racket 9.0 introduces Parallel Threads, a major addition to the language, and supports parallel threads with features like thread-wait and black-box wrapper. The release also includes AArch64 package distribution and improved syntax tracking.

Liva AI (YC S25) Is Hiring

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Liva AI is hiring a community growth intern to manage online communities like Discord servers or subreddits. The ideal candidate has experience growing and managing large online communities with fast response times and flexible schedules.

Iowa City made its buses free. Traffic cleared, and so did the air

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Show HN: Gitlogue – A terminal tool that replays your Git commits with animation

https://repository-images.githubusercontent.com/1092562478/b7704a1e-6920-40e7-b88a-fa8199773b33
gitlogue is a terminal tool that animates Git history with typing animations and syntax highlighting. It supports various themes, languages, and customization options.

Mount Proton Drive on Linux using rclone and systemd

https://opengraph.githubassets.com/26e2c613cff4b788dfe07bdefbb76acfd56ab710bc150ce7a3b3ee8b07216280/dadtronics/protondrive-linux
This guide automates the process of mounting Proton Drive on a Linux system using rclone and systemd. curl -O https://downloads.rclone.org/rclone-current-linux-amd64.zip unzip rclone-current-linux-amd64.zip cd rclone-*-linux-amd64 sudo cp rclone /usr/local/bin/ sudo chmod +x /usr/local/bin/rclone If the script added you to the fuse group, you must log out and back in for the change to take effect.

Particle Life

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Discover Particle Life, an interactive and educational particle simulator to understand physical phenomena and particle system dynamics.

A time-travelling door bug in Half Life 2

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A developer at Valve discovered a long-standing bug in Half Life 2 where a door wouldn't open due to a collision with a guard's toe, which was caused by differences in floating point precision between the original 8087 math and the newer SSE instruction set. The bug was present in the original game and was only fixed when the developers moved the guard back a millimeter, highlighting the ...

Band of Holes

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The Band of Holes, also known in Spanish as Monte Sierpe (serpent mountain) or Cerro Viruela (smallpox hill), is a series of about 5,000–6,000 man-sized holes[1] found in the Pisco Valley on the Nazca Plateau in Peru. Local people have no idea who made them or how they were used. Over the years, it has been speculated that they were graves, defensive positions, or storage places.[2] Recent ...

Sunsetting Supermaven

We recommend existing VS Code users migrate to Cursor Tab for improved autocomplete. Existing Neovim and JetBrains customers will continue to get free autocomplete inference.

After my dad died, we found the love letters

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The writer's father was a traditional Chinese man who hid his true self and lived a miserable life, but he had a secret three-year relationship with a man named Edward, who he planned to leave his wife for. The writer discovers this after their father's death and meets Edward, who shares their story and photos of a happy life together.

A ncurses-based command line torrent client for high performance

https://opengraph.githubassets.com/1dd8c754511f6759c9aceeb48f20f3156d525f907eea4c3ccd51e7eedad70836/rakshasa/rtorrent
RTorrent follows the development of libtorrent closely, and thus the versions must be in sync. GNU GPL, see COPYING. "libtorrent/src/utils/sha_fast.{cc,h}" is originally from the Mozilla NSS and is under a triple license; MPL, LGPL and GPL. An exception to non-NSS code has been added for linking to OpenSSL as requested by Debian, though the author considers that library to be part of ...

Terence Tao: At the Erdos problem website, AI assistance now becoming routine

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A human disproof of Erdos problem #367's second part was initially proposed, then confirmed by Gemini Deepthink using p-adic algebraic number theory. The proof was later formalized in Lean by Boris Alexeev in 2-3 hours.

MCP Apps: Extending servers with interactive user interfaces

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The MCP Apps Extension proposes a standardized pattern for interactive user interfaces in the Model Context Protocol, addressing a long-requested feature from the MCP community. This extension aims to improve user experience and prevent ecosystem fragmentation by enabling bidirectional communication between AI models and users.

An Economy of AI Agents

https://arxiv.org/static/browse/0.3.4/images/icons/smileybones-pixel.png
Artificially intelligent agents may be deployed across the economy in the next decade with little human oversight. Economists need to consider how AI agents interact with humans and markets.

A Unified Theory of Ego, Empathy, and Humility at Work

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This essay is half of a 2-part series about ego, empathy, and humility for developers and technical leaders. For advice on how to execute the ideas in this essay, you might also enjoy My Working Principles For Managing Ego, Empathy, And Humility. In our daily lives empathy and humility are obvious virtues we aspire to. They keep our egos in check. Less obvious is that they’re practical skills ...