Zed is 1.0

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Zed is a new editor built from scratch with a custom UI framework, GPUI, to provide a fundamentally better coding experience. Version 1.0 is now available, offering AI-native editing, collaboration features, and a growing list of capabilities.

Why AI companies want you to be afraid of them

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AI company Anthropic claims its new model Claude Mythos is too powerful and could have catastrophic consequences if released. Critics argue this is fear-mongering to distract from the company's real-world damage.

Tangled – We need a federation of forges

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Tangled aims to decentralize code collaboration by allowing events to be federated among git servers, enabling cross-server collaboration and hosting. It uses Authenticated Transfer to share events and social features, breaking free from GitHub's monoculture.

Soft launch of open-source code platform for government

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code.overheid.nl is a government-wide code platform for open-source software, currently a pilot using Forgejo. Developers are invited to contribute and join the platform by emailing [email protected].

Ghostty is leaving GitHub

The author has been using GitHub daily for 18 years, finding it the place where they've been happiest and most productive. However, due to frequent outages and reliability issues, they've decided to leave GitHub and move their project Ghostty to a new platform.

Mistral Medium 3.5

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Mistral Vibe moves coding agents to the cloud, running in parallel and notifying users when done. Mistral Medium 3.5, a new default model, powers cloud agents and Le Chat's Work mode for complex tasks.

Improving ICU handovers by learning from Scuderia Ferrari F1 team

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Researchers at Great Ormond Street Hospital studied ICU handovers and applied lessons from Ferrari and aviation to improve safety. They developed a four-stage process that reduced errors and improved patient care.

GitHub – DOS 1.0: Transcription of Tim Paterson's DOS Printouts

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Tim Paterson's DOS source code listings are available for browsing and compilation. The listings include 86-DOS 1.00 kernel and PC-DOS 1.00 pre-release kernels.

Letting AI play my game – building an agentic test harness to help play-testing

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Bugs Rust won't catch

Canonical disclosed 44 CVEs in uutils, a Rust reimplementation of GNU coreutils. The bugs highlight the importance of careful handling of paths, bytes, and syscalls in systems code.

Show HN: Adblock-rust Manager – Firefox extension to enable the Brave ad blocker

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A Firefox extension called adblock-rust-manager enables and manages Firefox's built-in adblock-rust engine. It provides a user interface to disable ETP, add filter lists, and reorder them for better ad blocking.

Linux 7.0 Broke PostgreSQL: The Preemption Regression Explained

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☕ Welcome to The Coder Cafe! On April 3, 2026, Salvatore Dipietro, an engineer at AWS, posted a patch to the Linux kernel mailing list. The reason: on a 96-vCPU Graviton4 machine running Linux 7.0, PostgreSQL throughput had dropped to roughly half of what it produced on Linux 6.x. In this post, we will trace what changed in Linux 7.0, how PostgreSQL manages memory, and what role memory pages ...

Before GitHub

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The author reflects on GitHub's decline and its impact on the Open Source community, remembering a time when projects were more decentralized and had more autonomy. They advocate for a public archive to preserve Open Source history and suggest that the community should learn from the past to build a more resilient future.

Stardex Is Hiring a Founding Customer Success Lead

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Stardex is an AI-native ATS and CRM built for executive search and recruiting firms. We're backed by Y Combinator and serve some of the leading US based executive search firms. Our customers are operators, they make money when they make placements, so every minute of downtime matters to them. We've been growing fast, and our founders have been handling support directly. We've hit ...

How ChatGPT serves ads

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OpenAI's ad platform injects ad units into ChatGPT conversations and tracks clicks with Fernet-encrypted tokens. The platform uses two domains and specific cookies to track ad events and user behavior.

Online age verification is the hill to die on

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🧵 THREAD 1/ Online age verification is the hill to die on. Not a fight you can sit out. Not a battle you can skip. Not a policy you can afford to ignore while you focus on something else. This is it. This is the line. This is the infrastructure that enables every other piece of the digital control grid. If we lose this fight, we lose everything.

Show HN: Auto-Architecture: Karpathy's Loop, pointed at a CPU

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An autonomous research loop was tested outside its comfort zone, achieving a 92% improvement over a baseline VexRiscv CPU on CoreMark iter/sec. The loop's success was due to a verifier that caught and rejected incorrect hypotheses.

Show HN: Rocky – Rust SQL engine with branches, replay, column lineage

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Rocky is a Rust-based control plane for warehouse pipelines with features like branches, replay, and compile-time safety. It helps prevent data corruption and provides column-level lineage and cost attribution.

Show HN: Rip.so – a graveyard for dead internet things

The internet has lost many services and platforms over the years, including ICQ, MSN Messenger, AOL Instant Messenger, and others. These services were once popular but eventually shut down or merged with other platforms.

U.S. war in Iran has cost $25B so far, says Pentagon official

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HardenedBSD Is Now Officially on Radicle

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HardenedBSD's Radicle integration is now usable, but still has performance issues and needs further work. Users should configure Radicle to support larger repos by editing ~/.radicle/config.json.

Withnail's Coat and I

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The Withnail coat from the 1987 film Withnail & I is a distinctive and iconic piece of men's clothing. It was designed by Andrea Galer and made from a unique Heather Brown tweed fabric.

OpenAI models coming to Amazon Bedrock: Interview with OpenAI and AWS CEOs

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Matt Garman and Sam Altman discussed how AWS and OpenAI are partnering to make AI more accessible to businesses, with Bedrock Managed Agents being a key product that integrates OpenAI models with AWS infrastructure. The integration of models and harnesses is crucial for making AI work effectively, and the partnership aims to make it easier for businesses to build and deploy AI-powered agents.

Low-Compilation-Cost Register Allocation in LLVM-Based Binary Translation

Researchers propose a low-compilation-cost strategy called LCCRA to improve register allocation in LLVM-based binary translators, reducing end-to-end latency and compilation overhead. LCCRA achieves a 5.76%-7.79% reduction in end-to-end latency and a 69.55%-74.98% reduction in register allocation time in various translation scenarios.

Coffee with a splash of physics: how to make the most out of your brew

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Physics can help reduce coffee waste by optimizing brewing techniques, such as grind size and pouring height, to improve extraction and quality. By understanding the complex process of coffee brewing, scientists can provide insights to the coffee industry to reduce waste and help the environment.

Who owns the code Claude Code wrote?

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Using AI coding tools like Claude Code raises complex questions about code ownership, copyright, and regulatory compliance, and developers must document their creative contributions to establish meaningful human authorship. Employment contracts and IP clauses can also impact code ownership, and developers should read their contracts and consider using personal tools and accounts to avoid ...

GitHub RCE Vulnerability: CVE-2026-3854 Breakdown

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Wiz Research discovered a critical vulnerability (CVE-2026-3854) in GitHub's internal git infrastructure that allowed remote code execution on shared storage nodes and full server compromise on GitHub Enterprise Server. GitHub mitigated the issue within 6 hours and released patches for all supported versions.

Data center boom strains Texas homebuilders' need for electricians

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Never miss a story! The Texas Tribune's daily newsletter gives readers the most essential Texas news. Sign up for The Brief. Audio recording is automated for accessibility. Humans wrote and edited the story. See our AI policy, and give us feedback. Abilene builder Gene Lantrip is on the front lines of Texas’ population boom, but a new force is making it harder to finish construction on ...

He asked AI to count carbs 27000 times. It couldn't give the same answer twice

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A study found that four leading AI models for carb counting in diabetes apps returned different estimates for the same food photo, with some models showing large variations. This inconsistency could lead to incorrect insulin dosing, with some models potentially causing severe hypoglycemia.

Talkie: a 13B vintage language model from 1930

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Researchers have created a 13B vintage language model called talkie-1930-13b-base trained on 260B tokens of historical pre-1931 English text to simulate conversations with people from the past. The model's performance is compared to its modern counterpart, with talkie underperforming in some standard LM evaluations but showing similar performance on core language understanding and numeracy tasks.