New technologies help wood-burning stoves burn efficiently, produce less smoke
Repository Now Limited by GitHub – Here’s Why
Sneakernet
The article discusses the concept of 'sneakernet', which refers to the physical transfer of data by moving storage media like floppy disks or USB drives between computers instead of using a network connection. It outlines the advantages and disadvantages of this method compared to digital data transfer over a network.
Show HN: I built a workflow for photorealistic person generation
Most LoRA trainings for person specific generation hit quality issues that make results look artificial. The breakthrough came from rethinking how lighting and expressions are handled during training and adjusting generation parameters.
Here are some examples:
- Corporate photo in office: https://imgur.com/a/kUQtMZr - TedX speaker: https://imgur.com/a/KOC6eCy - Rockstar performer: https://imgur.com/a/B2YaUHj - Sunset portrait: https://imgur.com/a/d4rEANW
Using Flux as base model. Has aynone pushed realism to this level in image generation?
Show HN: Zuhal – A Fast and Accurate Email Validation Service
Hi HN,
I’ve been working on Zuhal, an email validation service designed for developers and marketers who need to ensure their emails reach real inboxes.
Zuhal checks for syntax, domain validity, MX records, disposable addresses, and deliverability risks — all via a simple REST API or bulk upload.
I built this because I faced deliverability issues with email campaigns and wanted a tool that’s fast, accurate, and affordable.
I'd love to hear your thoughts, feedback, or suggestions for improvements. Also curious about how you handle email list hygiene in your projects or companies.
Here’s the site: [https://zuhal.io](https://zuhal.io)
Happy to answer any questions!
Interactive B¥W Rubik's Cube Yinyangle (2009)
Where Eiffel Fits: Part 1 – Introduction
Medacube Users?
France's Alpine May Start N.A. Expansion in Canada first due to Trump tariffs
The French automaker Alpine, owned by Renault, is considering expanding into the North American market, potentially starting with Canada. The article discusses the company's plans to bring its high-performance sports cars to new international markets as part of its global growth strategy.
Flexport Tariff Simulator
This article provides an overview of the latest tariffs affecting global trade, including details on U.S. tariffs, retaliatory tariffs from other countries, and the potential impact on businesses and consumers.
Show HN: I made a HTML parser with it's own matching language in C
Realistically speaking it's mostly useful for scraping, since parser works only in immutable state - it creates dom elements referencing original string, so changes to it are not cost effective. This approach has the benefit of increadibly small memory usage.
Here's python api if you want to test it https://github.com/TUVIMEN/reliq-python , pypi packages are compiled for windows, x86 aarch64 armv7 linux, and macos.
Google caused outage by ignoring its quality protections
Google Cloud experienced a major outage on June 16, 2025, resulting in disruptions to various Google services. The incident report provides details on the root cause, impact, and measures taken by Google to restore normal operations and prevent similar occurrences in the future.
A Knockout Blow for LLMs?
The article discusses the potential limitations and risks of large language models (LLMs), including issues with accuracy, bias, and the inability to reason logically. It highlights the need for caution and careful evaluation when using these models, particularly in high-stakes applications.
Creatrlink – Linktree for Podcasters
Ask HN: Should high schools have private report cards excluding grade inflation?
These private report cards would only be shown to students and their parents.
Rocky Linux 10.0 Available Now
Rocky Linux 10.0 has been released, providing a community-driven, enterprise-class operating system based on Red Hat Enterprise Linux. This release offers long-term support and aims to provide a reliable and secure platform for enterprise-grade applications and workloads.
Global warming may increase the burden of obstructive sleep apnea
The article explores the use of machine learning techniques to predict the outcomes of clinical trials for new drugs. The findings suggest that these methods can provide valuable insights into the likelihood of success for potential therapies, which could help guide the drug development process.
I automated 73% of my remote job (ethically, with my manager's knowledge)
The article describes how the author automated 73% of their remote job using various tools, including macros, scripts, and workflow automation software. It provides insights into the author's experience with automating repetitive tasks and the benefits they were able to achieve.
APOD is 30 Years Old Today
The article discusses a supernova observed in the galaxy NGC 2525, which was the second brightest supernova of 2022. It provides details on the size, brightness, and distance of the supernova, as well as its significance in understanding the life cycle of stars.
Navigating Mars with Rust: Developing an Autonomous Pathfinding Rover
This article describes the development of an autonomous pathfinding rover using the Rust programming language. The rover is designed to navigate the terrain of Mars, demonstrating the capabilities of Rust for embedded systems and autonomous robotics.
Senate AI Ban Could Risk $500M in U.S. Broadband Funding
The article discusses a proposed Senate bill that would ban the use of AI tools in broadband infrastructure projects, which could potentially jeopardize over $500 million in U.S. broadband funding. The bill is aimed at addressing concerns about the security and privacy implications of AI technology in critical infrastructure.
This is what happens to women who drink coffee
A Harvard study found that women who drank at least one cup of coffee per day had a lower risk of developing rosacea, a common skin condition that causes redness and inflammation on the face. The study suggests that the antioxidants and anti-inflammatory properties of coffee may provide benefits for skin health.
A Man Who Beat IBM
The article profiles Michael Saylor, the co-founder and former CEO of MicroStrategy, who successfully challenged IBM and became a leading advocate for Bitcoin. It explores his unconventional approach, his embrace of new technologies, and his transformation into a vocal proponent of cryptocurrency.
Landscape Urbanism Bullshit Generator
This article explores the concept of 'bullshit', examining its prevalence in modern society and the reasons behind its widespread use. The author delves into the motivations and implications of engaging in bullshit, providing a thought-provoking perspective on this ubiquitous phenomenon.
Setup EKS with reusable Terraform in 10 minutes using AI
The article provides a step-by-step guide on how to set up a Kubernetes cluster on AWS in under 10 minutes. It covers the necessary prerequisites, the installation process using eksctl, and the verification of the cluster's deployment.
Biobots arise from the cells of dead organisms
Researchers have developed 'biobots' made from the cells of dead organisms, blurring the lines between life and death. These synthetic lifeforms have potential applications in medicine, but also raise ethical questions about the manipulation of biological systems.
The Promised LAN
The article discusses the Tulf Project Language (TPL), a domain-specific language for creating text-based adventure games. It outlines the key features and benefits of TPL, such as its simplicity, conciseness, and ease of use for creating interactive narratives.
Spherical CNNs (2018)
The paper proposes a novel deep learning architecture called Convolutional Neural Fabrics (CNF) that can dynamically adapt its structure to learn effective representations for a variety of tasks, outperforming traditional convolutional neural networks on several benchmark datasets.
I vibe-coded a $0.15/week AI marketing automation for social media
Hi HN,
I'm a CTO-turned-solo-founder who got tired of seeing "vibe marketing" success stories (looking at you, Greg Isenberg) without the technical implementation details. So I spent 3 hours building and recording a complete marketing automation system.
*What it does:* - Claude AI analyzes your writing style and generates content - Runs through custom keyword optimization algo - Passes through humanizer algo for authentic voice - Node.js project pushes to Google Sheets for manual approval - Zapier picks up approved content → Buffer schedules it - One command: `npm run generate:weekly` → 2 daily X posts + 3 weekly long-form
*Tech stack:* - Anthropic Claude API for content generation - Custom Node.js algorithms for keyword optimization + humanization - Google Sheets as approval workflow - Zapier for automation workflows - Buffer API for scheduling - Cost: ~$0.15/week (just API calls)
*Architecture decisions:* The Google Sheets approval step was crucial. Pure automation felt too risky for brand voice. Now I can review/edit before publishing while keeping 90% of the workflow automated.
The humanizer algo was the trickiest part - had to fine-tune prompts to maintain my technical writing style while avoiding AI-generated "fluff."
*Why this approach:* Most marketing tools are either expensive ($100+/month) or completely generic. This learns YOUR voice but gives you control over what actually gets published.
*Current workflow:* 1. `npm run generate:weekly` 2. Review Google Sheet, flip approved posts to "confirmed" 3. Everything else happens automatically
*Demo:* I recorded the entire 3-hour build session here: https://x.com/GashiDite/status/1934686143196311841
Let me know what you think
Grugbrain.dev - A layman's guide to thinking like the self-aware smol brained
GrugBrain is an open-source project that aims to create a distributed, decentralized artificial intelligence system using blockchain technology. The project explores the use of Ethereum smart contracts and decentralized storage to develop an AI network that is transparent, secure, and resistant to centralized control.