Show HN: Ferrite – Markdown editor in Rust with native Mermaid diagram rendering

https://raw.githubusercontent.com/OlaProeis/Ferrite/master/assets/screenshots/raw-dark.png
Ferrite is a lightweight text editor built with Rust and egui for native experience. It supports Markdown, JSON, YAML, and TOML files with features like code folding and Mermaid support.

Finding and fixing Ghostty's largest memory leak

A memory leak in Ghostty was fixed after it was found to be caused by a logic bug in the terminal memory management system, which reused non-standard pages without properly freeing the underlying memory. The fix, which involves destroying non-standard pages during scrollback pruning, has been merged and is available in tip/nightly releases, with a tagged 1.3 release expected in March.

Show HN: I used Claude Code to discover connections between 100 books

https://trails.pieterma.es/og-image.png
Thematic links across books, automatically discovered by Claude.

Show HN: Librario, a book metadata API that aggregates G Books, ISBNDB, and more

Librario is a book metadata API aggregating data from multiple sources to provide complete book information. It's a personal project to manage the author's 1,800-book library, currently pre-alpha and available for testing.

Show HN: VAM Seek – 2D video navigation grid, 15KB, zero server load

https://opengraph.githubassets.com/2abc31b0088b1bea0cd3124d791a18f8bab1bdd81ca51857234e36e28406a1e3/unhaya/vam-seek
Navigate videos visually with a thumbnail grid instead of a 1D seek bar. Client-side frame extraction with smooth marker animation. Keywords: video player, video seek, thumbnail grid, video navigation, HTML5 video, JavaScript library, video streaming, media player, video controls, video thumbnails, seek bar alternative, video UX <!-- 1. Add the script --> <script ...

Open Chaos: A self-evolving open-source project

Every one is exited for the countdown end, added millisecond in countdown for make feel thins going faster

Show HN: Play poker with LLMs, or watch them play against each other

Watch AI models powered by large language models battle it out in Texas Hold'em poker. See how different LLMs bluff, bet, and compete for chips.

Eulogy for Dark Sky, a data visualization masterpiece (2023)

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The Dark Sky mobile app was a hallmark of information design due to its contextualized and dynamic approach to presenting weather data, making it easy to understand the weather at a glance. The app's design, which included features like temperature pills and precipitation graphs, was a pioneering effort in contextualizing data to make it useful for daily life, and its loss has been deeply ...

A Year of Work on the Arch Linux Package Management (ALPM) Project

https://devblog.archlinux.page/2026/a-year-of-work-on-the-alpm-project/screenshot-alpm-lint-website.png
The ALPM project created a Rust-based framework for Arch Linux Package Management, funded by the Sovereign Tech Fund, and developed various tools and integrations over 15 months. The project aims to empower developers to build robust package management applications with a strongly typed, memory-safe language.

AI is a business model stress test

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Adam Wathan's Tailwind Labs faced significant job losses due to AI's impact on their business model. AI commoditized Tailwind's fully specifiable offerings, shifting value to operations like deployment, testing, and hosting.

Code and Let Live

https://fly.io/blog/code-and-let-live/assets/sprites.jpg
The author argues that traditional agent isolation through read-only sandboxes is outdated and proposes using durable, ephemeral computers called Sprites for more efficient development.

Sisyphus Now Lives in Oh My Claude

https://raw.githubusercontent.com/Yeachan-Heo/oh-my-claude-sisyphus-website/main/social-preview.png
Oh-my-claude-sisyphus is a TypeScript monorepo using Bun, React, and PostgreSQL with a silent auto-update system. It includes various tools and plugins for tasks like authentication, user dashboard, and performance analysis.

Brands upset Buy For Me is featuring their products on Amazon without permission

https://www.modernretail.co/wp-content/uploads/sites/5/2025/12/Modern-Retail-Amazon-AI-1-1.jpg?w=1280&h=640&crop=1
Angie Chua's stationery brand Bobo Design Studio was listed on Amazon without her permission through Amazon's "Buy For Me" feature. Chua and other merchants are upset that Amazon automatically opted them into the program, potentially damaging their reputations and hurting customer experiences.

CPU Counters on Apple Silicon: article + tool

The user created a tool called "Lauka" to fetch all available counters for Apple Silicon processors, which was a research project about Apple's private kperf API and involved understanding how it works and finding incompatible counter pairs. The tool's development involved discovering that the order in which counters are added matters and that some counters are incompatible due to their ...

Datadog, thank you for blocking us

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Deductive's account was deactivated by Datadog due to perceived competitive threat, but the team quickly migrated to Grafana Cloud with minimal disruption. The experience highlights the shift in observability economics, where code is cheap and vendor lock-in is no longer a significant barrier.

Overdose deaths are falling in America because of a 'supply shock': study

Manufacturers use "shrinkflation" to keep prices steady despite rising costs, reducing product size. Research suggests a similar strategy may be behind America's recent fall in overdose death rate.

Workers at Redmond SpaceX lab exposed to toxic chemicals

https://static-media.fox.com/fmcv3/prod/fts/h3yqbsu184umyto1/j9o93c3tkcmwk9fo.jpg
InvestigateWest discovered hazardous chemicals seeped from a SpaceX lab in Redmond into the lungs of unsuspecting workers next door.

Code Is Clay

https://campedersen.com/_next/image?url=%2F_next%2Fstatic%2Fmedia%2Fhypercube-clay.ef7e8611.jpg&w=3840&q=75
You drew parallels between coding and clay, noting both are mediums for ideas and require constant adaptation. With AI automating production work, you think the craft of coding will remain, focusing on unique and human ideas.

An Experimental Approach to Printf in HLSL

There are a million reasons why having printf support in HLSL would be super valuable. It even used to exist in older shader models. Other shader languages like the Metal Shading language have their own logging mechanisms, and shader programming gurus like MJP have rolled their own. Disclaimer: having an officially supported way to print strings would be super useful for HLSL… Although this ...

Show HN: mcpc – Universal command-line client for Model Context Protocol (MCP)

https://raw.githubusercontent.com/apify/mcpc/main/docs/images/mcpc-demo.gif
mcpc is a CLI for the Model Context Protocol (MCP) that maps MCP operations to intuitive commands for interactive shell use, scripts, and AI coding agents. It supports authentication, sessions, and proxy servers for secure access to MCP servers.

ChatGPT Health is a marketplace, guess who is the product?

https://i0.wp.com/consciousdigital.org/wp-content/uploads/2026/01/Screenshot-2024-09-26-at-11.04.25.png?resize=1024%2C1009&ssl=1
OpenAI's ChatGPT Health aggregates health data to create a marketplace where insurers and healthcare providers can target users. This raises concerns about data privacy and exploitation under OpenAI's financial pressures.

Bob Weir has died

https://www.rollingstone.com/wp-content/uploads/2026/01/bob-weir-obit.jpg?w=1600&h=900&crop=1
Bobby Weir, co-founder of the Grateful Dead, has died at 78 after a long battle with cancer and lung issues. He was a guiding force in American music, leaving behind a legacy of warmth, community, and a unique artistry that will endure for generations.

ASCII-Driven Development

https://miro.medium.com/v2/resize:fit:700/1*Owqblcd2JmJJTt_-2nYteQ.png
" 1. describe ui in natural language. use a dark theme withblue accents.'[email protected]' is the newest member of our team to review this product - and it's already gotten over 2,000 reviews! if you're looking for an affordable, high-quality lumbar support chair, look no further — edward m.

Private equity firms acquired more than 500 autism centers in past decade: study

https://www.brown.edu/sites/default/files/styles/wide_lrg/public/2026-01/autism-center.gif?h=ec6e0f78&itok=BLGrekur
Private equity firms acquired over 500 autism therapy centers across the US, with 80% of acquisitions happening in 4 years. The acquisitions are concentrated in states with high autism rates and fewer insurance limits, raising concerns about prioritizing profits over families.

Rats caught on camera hunting flying bats

https://scienceclock.com/wp-content/uploads/2025/10/Rats-catching-bats-860x430.png
Researchers in northern Germany filmed brown rats catching bats mid-flight at a cave, showing unexpected agility as predators. The rats' hunting strategy could wipe out 7% of the bat population in a single season, adding a new stressor to European bat populations.

Org Mode Syntax Is One of the Most Reasonable Markup Languages for Text (2017)

https://karl-voit.at/2017/09/23/orgmode-as-markup-only/2021-04-16T23.44%20Twitter.com%20-%20jitbit%20-%20Me%20writing%20Markdown%20--%20fun%20software%20screenshots%20publicvoit%20-%20scaled%20width%20585.png
The user argues that Org mode syntax is the best lightweight markup language due to its intuitive and clean syntax, making it easy to type and remember, and its ability to be used outside of Emacs. The user criticizes other markup languages such as Markdown, AsciiDoc, and reStructuredText for their inconsistencies and usability issues, and suggests that Org mode syntax should be adopted for ...

UpCodes (YC S17) is hiring PMs, SWEs to automate construction compliance

https://up.codes/img/upcodes-og-twitter-image.png
We’re looking for talented and motivated people who can help us build easy-to-use compliance and product research tools. Learn about our culture and explore open positions.

New information extracted from Snowden PDFs through metadata version analysis

https://libroot.org/public/post-imgs/ver1.jpg
Two published documents by The Intercept and ABC had sections on domestic U.S. intelligence facilities removed, while equivalent foreign facilities remained visible. The removed sections reveal operational designations and cover names for domestic U.S. NRO Mission Ground Stations.

I replaced Windows with Linux and everything's going great

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A senior tech editor is testing Linux as his main OS after getting fed up with Windows. So far, he's found it to be a relatively easy transition with most hardware working fine.

Kodbox: Open-source cloud desktop with multi-storage fusion and web IDE

https://raw.githubusercontent.com/kalcaddle/static/master/images/kodbox/icon_512.png
kodbox is a file manager for web. It is also a web code editor, which allows you to develop websites directly within the web browser. Self-hosted file management system with muilt-cloud support. You can run kodbox either online or locally,on Linux, Windows or Mac based platforms. The only requirement is to have PHP 5 available. 👁️‍🗨️ Online preview, editing and playback of hundreds of file ...