FreeInk: Open ecosystem for e-readers

https://freeink.org/og-image.png
FreeInk is an open-source collective building e-paper reader software, firmware, and hardware. It offers customizable firmware and hardware for budget e-paper readers with features like EPUB support, font customization, and wireless syncing.

Long presumed dead, a thriving coral reef is discovered in West Africa

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Scientists in Benin rediscovered a 24-mile-long coral reef after 60 years, finding a thriving ecosystem with at least eight coral types and eight fish species. The discovery has potential for conservation and unlocking new information about coral history and climate systems.

Jack Dorsey launches Buzz to combine team chat, AI agents and Git hosting

https://storage.googleapis.com/replit-objstore-d9348084-1d39-476b-853f-10dddb0b4732/public/source-images/jack-dorsey-block-buzz-team-chat-ai-agents-git-f562a21f.jpg?X-Goog-Algorithm=GOOG4-RSA-SHA256&X-Goog-Credential=heimdall-production%40replit-user-deployments.iam.gserviceaccount.com%2F20260721%2Fauto%2Fstorage%2Fgoog4_request&X-Goog-Date=20260721T180142Z&X-Goog-Expires=604799&X-Goog-Signature=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&X-Goog-SignedHeaders=host
Block's cofounder Jack Dorsey launched Buzz, an open-source workspace that integrates employees, AI agents, conversations, and software repositories under one identity system. Buzz aims to reduce Block's dependence on Slack and GitHub by providing a decentralized and self-sovereign platform for software development.

Gemini 3.6 Flash, 3.5 Flash-Lite, and 3.5 Flash Cyber

https://storage.googleapis.com/gweb-uniblog-publish-prod/images/gemini-3-6-flash__evals__figure-.width-1200.format-webp.webp
Gemini 3.6 Flash and 3.5 Flash-Lite models are released to improve efficiency and performance. They offer better coding, knowledge work, and multimodal performance with lower costs and higher precision.

Apple has decided to compete for creativity app users

After not seeming to have a clear go-to-market strategy for their creativity apps over the last 15 years… Apple are looking for a manager to lead a team in Poland that focuses on the engagement, acquisition, and retention of Apple Creator Studio subscribers. Developing ‘multi-year forward thinking growth plans and marketing campaigns in priority regions and customer segments’ Designing ...

Apple Private Cloud Compute SoC 3 audit reports

Apple commissioned a SOC 3 report to examine its Private Cloud Compute controls, providing assurance on security, integrity, and confidentiality. The report details Apple's service commitments and system requirements that meet AICPA trust services criteria.

AI makes programming differently difficult

The website is using Cloudflare security and blocked my action, possibly due to a trigger like a certain word or SQL command. I was trying to perform an action when this page came up, and the Cloudflare Ray ID is needed to report the issue to the site owner.

Qwen-Image-3.0: Rich Content, Authentic Details, Deep Knowledge

https://qianwen-res.oss-accelerate.aliyuncs.com/Qwen-Image/image3/banner.png#center
Qwen-Image-3.0 is a foundational image generation model that supports up to 4.5k token input and renders complex layouts with precise details. It achieves breakthroughs in high-value productivity scenarios with its core features of Rich Content, Authentic Details, and Deep Knowledge.
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Advertisers can reach people in ChatGPT as they explore options and make decisions, with relevant ads that feel useful in moments of intent. By creating an account and setting up campaigns, advertisers can show up in ChatGPT and stay relevant to customers.

PCjs Machines

https://www.pcjs.org/software/pcx86/sw/magazines/pcdm/images/thumbnail.png
PCjs is a JavaScript emulator that recreates vintage hardware and software from the 1970s and 1980s. It offers a collection of classic machines, including IBM PCs and arcade games, accessible through a web browser.

Bloomy (YC S26) is hiring a founding engineer

Bloomy is an AI tutor and curriculum for K-12 students that diagnoses skill gaps and maps personalized learning paths. As a founding engineer, you'll help actualize the vision of improving education for millions by designing and shipping features, building agent infrastructure, and closing the data loop.

Meta's AI models are powering the first wave of Genesis Mission projects

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Show HN: A self-running space economy SIM in Rust and Bevy

https://raw.githubusercontent.com/Kalcode/spaceprojectsim/main/docs/screenshots/space_project_sim_1.png
The Space Project is an open-source, agent-driven economic simulation where autonomous ships and facilities interact in a living solar economy with no scripted storyline or player objective. It's built with Rust and Bevy, featuring a pure, synchronous, IO-free engine and a 3D client with a scalable architecture capable of pushing toward 100k+ live agents.

France's Anssi Will Block PQC-Free Products from Certification Starting 2027

https://postquantum.com/wp-content/uploads/2026/06/ANSSI_Logo-scaled.png
France's national cybersecurity agency ANSSI will stop certifying security products without quantum-resistant encryption by 2027. Businesses should purchase only quantum-safe products by 2030 to maintain access to the French government technology market.

Cheap self-hosted Kubernetes on Hetzner cloud (2025)

https://blog.qstars.nl/posts/cheap-self-hosted-kubernetes-on-hetzner-cloud/cover_hu_97666092fdef913f.webp
Kubernetes can be overwhelming to run and operate, but terraform-hcloud-kube-hetzner simplifies deploying a production-ready K3s cluster on Hetzner Cloud. This open-source Terraform project balances ease of use, reliability, and cost efficiency, utilizing MicroOS and K3s for a highly available and secure cluster.

The unreasonable difficulty of time series forecasting

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Time series forecasting is difficult due to its unique challenges, including scarce signal, low effective sample size, and distribution shift during training and inference. The data generating process is a single dependent path, not a bag of iid draws, making it hard to learn from.

AI Agent – TRMNL

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The user wants to create a plugin showing global populations with Agent, but needs an API Key from OpenRouter or a Claude API account. Agent has various capabilities and tools, including markup editing and API endpoints, and can be customized with a preferred model from the user's account.

The World's 2,400 Castles

https://thecastlemap.com/og.jpg?v=ink
Castlemap is a free interactive map of 2,435 significant castles worldwide, sourced from open data. It allows users to explore and learn about castles across 129 countries with photos, stories, and exact locations.

Show HN: CodeAlmanac – Karpathy-style codebase wiki from your conversations

https://raw.githubusercontent.com/AlmanacCode/codealmanac/main/docs/assets/readme-hero.png
CodeAlmanac is a wiki system that provides context to AI agents through local code and repository data. It uses a local database and macOS launchd jobs for automation.

Show HN: Imagin Raw – A 9MB Open-Source Alternative to Adobe Bridge for Mac

https://raw.githubusercontent.com/cristibaluta/Imagin-Raw/main/screenshots/main.jpg
Imagin RAW is a native macOS app for browsing, culling, and organizing RAW photos, offering features like real-time file system monitoring and rating. It has an iOS companion app in development and is available for download from the AppStore or Releases.

The Price of Happiness

https://happiness-science.org/images/Price%20of%20Happiness/combined_plot_top3.svg
People typically think about money in raw units such as dollars. Yet research on money and happiness typically examines the association between happiness and the logarithm of income, or Log(income). This logarithmic association between income and happiness is frequently either overlooked or misunderstood. To help address this, the present report examines this association and makes five key ...

Laguna S 2.1

https://poolside.ai/assets/laguna/laguna-s-browser-engine.png
Laguna S 2.1 is a 118B parameter Mixture-of-Experts model that supports a context window of up to 1M tokens and holds its own against larger models on long-horizon coding benchmarks. It has two thinking modes, is capable of pursuing meaningful engineering and research work, and has been released with some known limitations that will be addressed in future iterations.

Greedy is optimal for single-pass semi-streaming matching

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
We prove that no single-pass semi-streaming algorithm (deterministic or randomized) can achieve a better-than-half approximation to the maximum matching problem. This implies the optimality of the naive greedy algorithm, answering an outstanding open question in the graph streaming literature since the introduction of the model over two decades ago. Our proof follows the "blueprint ...

Uhubctl – control USB power per-port on smart USB hubs

https://opengraph.githubassets.com/215456cf9954083ef7a6f93e9ab6b738fb4bbdb5a513907362280fed0c63934d/mvp/uhubctl
uhubctl is a utility to control USB power per-port on smart USB hubs, but not all hubs support this feature. It can be installed from source or package managers on various operating systems.

My USB Drive Has a Hidden Encrypted Vault

https://rootkitlabs.com/img/phantomdrive/phantomdrive-front.webp
Phantomdrive is a completely open source USB drive that appears as an 8 GB drive but has a hidden encrypted section, useful for protecting data from unauthorized access. The device uses AES-256 encryption, a salt-based key derivation function, and 100,000 rounds of SHA-256 to secure data, with optional AES-XTS mode for increased security.

Slater – Low-memory graphdb designed for read-heavy graphs

https://opengraph.githubassets.com/608b8ecb7fbc25e23f6841906f45ba388360682356f277df4f28199b3dfa4b54/Hikari-Systems/slater
In one line: Slater serves graphs that don't fit in memory — hundreds of millions of nodes and billions of edges in low hundreds of MB of RAM — over standard Bolt, so any neo4j driver just works, with disk-native vector search sitting next to the graph, and it takes live, durable writes without giving that up. Resident memory is set by a cache budget you choose, not by the size of the ...

I built a page that tells you what AI model your laptop can run

Estimates suggest running SOTA models like GPT-4o locally requires 1T+ parameters and consumer hardware. Performance depends on quantization quality, model architecture, and optimization tools.

Python 3.15's Ultra-Low Overhead Interpreter Profiling Mode – Ken Jin's Blog

Python's 3.15 JIT compiler uses a new form of interpreter profiling that records execution through the interpreter for JIT compilation with low overhead. This approach allows for efficient profiling of the interpreter, with a maximum slowdown of 4.5x for a toy benchmark, compared to 900x-1000x for other tracing systems like PyPy.

Firefox Containers Preview

https://blog.mozilla.org/wp-content/blogs.dir/278/files/2026/03/Firefox_Logo_Symbol_Fullcolor_RGB-800x800.png
Firefox version 153 introduces Containers, allowing separate online activities to be logged into different accounts in the same browser window with isolated cookies and ad tracking. This feature is now a native part of Firefox, making it easier to manage and organize digital space.

Apple Defeats Liability for Not Scanning iCloud for CSAM

https://blog.ericgoldman.org/wp-content/uploads/2026/02/IMG_2022-300x300.jpg
Apple implemented end-to-end encryption for iCloud files after initially planning to scan for CSAM using NeuralHash. The court dismissed the lawsuit, ruling Apple is entitled to immunity under Section 230 due to its role as a neutral platform.