A backdoor in a LinkedIn job offer

https://roman.pt/posts/linkedin-backdoor/splash_hu_6f6d450d0d33e225.png
A recruiter sent a LinkedIn message asking me to review a GitHub repo, which turned out to be a backdoored Node project. I caught the trap by using a read-only agent and reported the repo to GitHub and the recruiter to LinkedIn.

Iroh 1.0

https://www.iroh.computer/api/og?title=Blog&subtitle=Iroh%201.0%20-%20Dial%20Keys,%20not%20IPs
Iroh is a secure, open-source networking library that allows devices to connect directly using keys, providing a stable and efficient internet experience. Its 1.0 release offers a mature networking stack, supporting multiple languages and protocols, and is already running on hundreds of thousands of devices.

Ask HN: Has anyone replaced Claude/GPT with a local model for daily coding?

You're looking for local LLM setups for coding. Some users have tried Gemma 4 on Apple M4 and DeepSeek V4 Flash with RTX Pro 6000 Blackwell, achieving 160 tok/s but lower than cloud offerings.

TinyWind: A pixel pirate sailing game with real wind physics (380k+ kms sailed)

https://tinywind.io/opengraph-image?ca63dcafdaa67b1f
Tinywind is a pixel-art pirate sailing game in your browser. Outsail the Royal Navy across 7 islands with real sailing physics — beam reach, tack, jibe, broadside. Free to play, no install, 5-minute voyages.

Curl will not accept vulnerability reports during July 2026

https://daniel.haxx.se/blog/wp-content/uploads/2026/06/curl-summer-of-bliss.jpg
The curl project will be closed to vulnerability reports in July 2026, known as the "curl summer of bliss." Reports can be submitted again on August 3 through Hackerone.

What happened to nerds?

https://mrmarket.lol/static/og-image.png
The tech industry's leadership has shifted from being humble and focused on work to being egocentric and attention-seeking, damaging the industry's reputation and trust with the public. To regain trust, founders should focus on projecting core nerd values such as enthusiasm for niche interests, humility, and a love of learning rather than seeking wealth and power.

CrankGPT

https://crankgpt.com/Images/og.jpg
CrankGPT prioritizes user data privacy and allows token production on device. It offers a decentralized alternative to ChatGPT, promoting self-sufficiency and saving money.

Banned book library in a wi-fi smart light bulb

https://www.richardosgood.com/posts/banned-book-library/images/image-12.png
The user had an idea to hack a WiFi smart light bulb to create a digital dead drop hosting banned books, inspired by a short story and Cory Doctorow's book, and decided to use Tasmota firmware to create the Banned Book Library. After purchasing a bulb with Tasmota pre-installed, the user modified the firmware to create a custom web server and storage system, but encountered several ...

Hetzner Price Adjustment

Price adjustment applies to new orders and rescales from June 15, 2026, 8 AM CEST. Limited offerings will be available until supply lasts, with prices defined by hardware availability and procurement costs.

Apple Foundation Models

https://platform.claude.com/docs/og?locale=en&path=cli-sdks-libraries/libraries/apple-foundation-models
Claude for Foundation Models is a Swift package that makes Claude available as a server-side language model in Apple's Foundation Models framework. It targets the Foundation Models server-side language model API introduced in OS 27 betas.

My Homelab AI Dev Platform

https://rsgm.dev/_astro/opencode-platform.6IWQ2Grw_Z15woUP.webp
You set up OpenCode with Git access for homelab management, using AI for container updates and healthchecks. OpenCode runs on a VM with persistent coding sessions, synced across devices, and integrates with GitOps for deployment.

To study how chips work, MIT researchers built their own operating system

https://news.mit.edu/sites/default/files/images/202605/mit-csail-fractal.jpg
Researchers at MIT developed Fractal, a new kernel that gives a cleaner view of processor behavior, and has already found previously unknown behavior in Apple's M1. Fractal treats hardware as the object of study, allowing researchers to run experiments with minimal background noise and gain a deeper understanding of processor behavior.

Even more batteries included with Emacs

https://karthinks.com/img/dictionary-tooltip-01.png
The article discusses various lesser-known features in Emacs, including wildcard support in find-file and Dired, ffap-menu for finding file paths, compare-windows for comparing text, and other features like vc-diff for inspecting backups and apropos for searching commands. The article also covers features like keyboard macros, subword-mode, image manipulation, visible-mode, and other ...

Fox to buy Roku

Fox Corp is acquiring Roku in a $25 billion deal, combining live news and sports with streaming platforms. This major bet on ad-supported streaming aims to shape the future of the industry.

Copper transport drug restores memory and clears toxic Alzheimer's proteins

Monash University researchers found a copper-based drug reduces toxic Alzheimer's proteins and improves memory by repairing a vital waste-clearing pump. The treatment has potential to combat Alzheimer's and may empower the brain's immune cells to consume toxic plaques.

Typst 0.15.0

https://typst.app/assets/social.png
Typst 0.15 introduces several changes, including the removal of deprecated definitions, improved baseline information retention, and adjustments to file path handling. It also makes changes to mathematical typesetting, including how ratios are resolved and how delimiters are handled.

Salesforce to Acquire Fin (formerly Intercom) for $3.6B

https://www.salesforce.com/news/wp-content/uploads/sites/3/2026/06/Option-02.png?w=300&bc=OTH
Salesforce acquires Fin for $3.6 billion to enhance customer support with AI Agent technology. The acquisition will improve autonomous resolution, reduce costs, and accelerate AI adoption for service organizations.

Ten years of ClickHouse in open source

https://clickhouse.com/uploads/h12811516_metrika_constructor_ip_3395736180.png
ClickHouse is an open-source analytical database that was released in 2016 and has become the most popular open-source database with over 2000 contributors. It was created by a single developer who started with a custom data structure for incremental aggregation and eventually built a full-fledged database system from scratch.

I Love the Computer

https://michaelenger.com/images/blog/computer-tekno.jpg
The author's love for technology began with a computer his mother brought home from work in the early 90s, which sparked a lifelong passion for computers and programming. Now, the author feels disillusioned with the current state of technology, overrun by marketers and capitalists who exploit its potential for profit.

Peopleless economy? Not technically impossible

To resolve the security verification issue, check if your internet or firewall settings have blocked "challenges.cloudflare.com". Adjust your settings or try a different network if necessary.

Hetzner increased dedicated server prices 3-4x

Hetzner increased bare metal pricing by 3-4x, citing hardware cost increases and scarcity of RAM and Disk. This move may impact users who were considering migrating to Hetzner for competitive pricing.

What job interviews taught me about Kubernetes

You've noticed a shift in the tech industry where Kubernetes is now widely adopted by companies of all sizes. The main reasons for this adoption are uniformity, shared knowledge, and traceability, which provide non-technical benefits such as easier onboarding and compliance.

Dutch Railways offers unlimited off-peak train travel nationwide for €49/month

Main navigation

Game Engine White Papers: Commander Keen

https://forgottenbytes.net/resources/front_cover.png
A book about Commander Keen's game engine has been released in paper and digital formats, with source code available on GitHub. The book details game development in the late 80s and early 90s, covering hardware and engine specifics.

US battery manufacturing output continues to break records

Why I email complete strangers

https://www.goodinternetmagazine.com/content/images/2026/06/logo.png
The author overcame low self-esteem to send emails to strangers, finding it a meaningful way to communicate. Email's longevity and flexibility make it a special method for connecting with others.

Improvement in advanced Alzheimer’s disease following high-dose psilocybin

https://static2.frontiersin.org/static-resources/images/crossmark_color.webp
An octogenarian woman with advanced Alzheimer's disease showed transient multidomain functional improvement after receiving a high dose of psilocybin-containing mushrooms. The patient's improvements included restored urinary continence, improved mobility, and increased emotional responsiveness, but the effects were not sustained.

Openrouter Fusion API

https://openrouter.ai/openrouter/fusion/opengraph-image-1oizug?6fdbbf65fb5a15d5
Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.

Anthropic's Safety Superpower

https://i0.wp.com/sharptech.fm/assets/Sharp%20Tech%20-%20Black.png?w=128&h=128&ssl=1
Anthropic's model release and data retention policies have raised concerns about safety and control. The company's actions seem to prioritize its own interests and goals over others.

Gribouille 0.3.0: A Grammar of Graphics for Typst

https://mickael.canouil.fr/posts/2026-06-15-gribouille-0-3/featured.png
Gribouille 0.3.0 adds guide control for hiding axis ticks and legends, and introduces a theme parameter for styling composition chrome. It also includes fixes for legend layout, stacking area charts, and other features.

How TimescaleDB compresses time-series data

https://roszigit.com/images/blog/timescaledb-hypercore-post-1.webp
TimescaleDB achieves up to 98% compression for time-series data using its hypercore engine and specialized algorithms like delta encoding and run-length encoding. This results in significant storage cost savings and faster analytical queries.

Claude Corps

https://www.anthropic.com/_next/image?url=https%3A%2F%2Fwww-cdn.anthropic.com%2Fimages%2F4zrzovbb%2Fwebsite%2Feb5d94573805e24cb381cd0676527cfada75c177-3840x2160.jpg&w=3840&q=75
Anthropic launches Claude Corps, a fellowship program to teach 1,000 young professionals AI skills and place them in nonprofits to advance missions. The program aims to equip host organizations with valuable tools and systems, and fellows with AI skills for their careers.

If your product is Great, it doesn't need to be Good (2010)

The author argues that successful products focus on a few key features, ignoring others, to create a simple and compelling experience. This approach is seen in products like the original iPod and Gmail.

Cell-based architecture for resilient payment systems

https://americanexpress.io/_post_assets/cell-based-architecture-for-resilient-payment-systems/img/main.jpg
American Express uses a cell-based architecture to ensure high availability and low latency in its payments ecosystem. This architecture isolates failures, maintains low-latency processing, and scales capacity without expanding the failure domain.

The rich aren't your role models

https://theslowburningfuse.wordpress.com/wp-content/uploads/2026/06/image-1.png?w=468
Elon Musk's trillion-dollar fortune represents a historic failure of human society, where wealth is concentrated in the hands of one individual at the expense of millions trapped in poverty. This outcome is a logical result of capitalist development, where wealth naturally accumulates and economic power becomes increasingly centralised.

Emacs, how it all started for me

The author chose Emacs as their primary editor due to its wide range of language support and ease of use on Windows. They eventually switched to Linux and continued using Emacs, learning to customize it effectively over time.

Show HN: I wrote a C++ ray tracer from scratch without AI

https://raw.githubusercontent.com/themartiano/luz/main/docs/images/stormtroopers.jpg
Luz supports Monte Carlo path tracing, global illumination, and various rendering features. It uses a CLI with customizable settings and supports exporting scenes from Blender.

Google Flight Simulator

https://www.gstatic.com/images/branding/productlogos/maps_2025/v1/192px.svg
The Google Maps flight simulator is experimental with simplified physics and dynamic loading, offering an immersive experience with limitations. It has features like terrain anomalies and overlapping controls, and users can exit safely by clicking the back arrow.

Akse3D – open-source 3D modelling anyone can master

https://akse3d-en.skaperiet.no/img/editor.png
Akse is a 3D modeling tool for kids and teens that combines shapes and allows export as an STL file for 3D printing. It's free, runs in the browser, and offers simple tools and real millimeter measurements for precise modeling.

21 years and counting of 'eight fallacies of distributed computing' (2025)

https://blog.apnic.net/wp-content/uploads/2025/10/2025-10-featured-fallacies-555x202.png?v=4858e5a1b0247a65e15f5a69e5349a683758ccdbeb7f281e7daead61c25cb6c0
The eight fallacies of distributed computing highlight common misconceptions about network behavior, including assuming reliable data delivery, infinite bandwidth, and secure networks, which can lead to design flaws in network protocols and applications. Understanding these fallacies is crucial for network operators and developers to design robust and efficient network systems that can handle ...

Can Europe train a frontier AI model on the compute it owns?

https://opengraph.githubassets.com/cd7b03d5b4769a79ab5604d1f138c173ae9323bf126298a8475e29ad781ff65c/sammysltd/euromesh
Europe can train a sovereign frontier-class AI model by federating its existing public compute, potentially by 2028. This is possible due to the long lead times for grid power connections to new datacenters, which can take up to 7.6 years.

How memory safety CVEs differ between Rust and C/C++

Rust's memory safety is more effective in practice than C or C++ because it treats potential vulnerabilities as library bugs, not user code bugs, unless the user explicitly uses the unsafe keyword. This approach allows Rust to scale in practice by automatically ensuring memory safety in safe Rust code, whereas C or C++ libraries can still be misused to introduce memory unsafety.

Boot Naked Linux

https://nick.zoic.org/art/boot-naked-linux/img/booted.jpg
The user is trying to create a minimal Linux system that boots in under a second by stripping away unnecessary components and using a custom init program. They successfully created a tiny Linux system using a custom kernel and initrd image, and were able to read from a disk image using QEMU.

Around 200 Stanford students walk out as Google CEO takes stage

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A brief tour of the PDP-11, the most influential minicomputer of all time (2022)

https://cdn.arstechnica.net/wp-content/uploads/2022/03/PanelInCase_Side.jpg
The PDP-11 is a minicomputer that played a significant role in the history of computing, influencing modern operating systems, programming languages, and interactive computing. It was introduced in 1970 and sold over 600,000 units during its 22-year lifespan.

Show HN: We built an 8-bit CPU as 2nd year EE students

https://opengraph.githubassets.com/024bb1bb2a6cc19635a02f7cd0058891d3ee9fab78a1fb564012b0479495c890/c0rRupT9/STEPLA-1
STEPLA-1 is an 8-bit CPU built from individual 74-series logic gates in Logisim-Evolution, with a fully hardwired control unit and transparent signal paths. It targets a 4 MHz clock speed with a verified critical path of 101ns.

Egyptian Fractions (2006)

https://pic.blog.plover.com/TOP.jpg
The Ahmes papyrus contains a table of Egyptian fraction representations of fractions of the form 2/n for odd integers n. The Egyptians used a table of these representations to calculate other fractions by doubling and adding 1.

US Air Force B-52 bomber crashes after takeoff, Edwards Air Force Base says

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Show HN: machine0 – Persistent NixOS VMs You Control from the CLI

https://machine0.io/opengraph-image?d0b124732c7005de
This cloud platform offers on-demand VMs with static IPs, per-minute billing, and optional GPUs, ideal for hosting web apps and databases. It supports reproducible builds, deterministic environments, and autonomous agents with isolated credentials.

Sogen – High-performance Windows and Linux userspace emulator

https://momo5502.com/sogen/preview.svg
The emulator operates at syscall level for Windows and Linux binaries, saving and restoring state for quick resume. It's designed for researchers to control process execution with precise control and scripting capabilities.

The hallucinogenic mushroom that contains no known psychedelic

https://res.cloudinary.com/drkckcqqr/image/upload/w_1019,h_640,c_fill,f_auto,q_auto/w_1019,h_640,c_fill,f_auto,q_auto/w_1019,h_640,c_fill,f_auto,q_auto/w_1019,h_640,c_fill,f_auto,q_auto/v1781449650/psycouk-news/h2uvptbfvdnjkf46txv2.png
Researchers sequenced 53 Lanmaoa genomes and found that the hallucinogenic mushroom Lanmaoa asiatica lacks known biosynthetic genes. Its active agent remains unknown, suggesting a new pathway for psychoactive compounds.

A 1976 university experiment spun up the U.S. wind industry

https://spectrum.ieee.org/media-library/a-man-and-a-woman-wearing-dressy-winter-coats-watch-a-crew-of-informally-dressed-men-working-on-the-construction-of-a-wind-turbi.jpg?id=66894045&width=1200&height=750
William Heronemus, a UMass professor, led a team that built the first wind turbine, dubbed the "Wind Furnace," in 1976 to prove wind energy's potential. His work sparked the wind industry, inspiring a generation of engineers and leading to the development of modern wind farms.

Vinyl Cache and Varnish Cache

The Varnish Cache FOSS project changed its name to Vinyl Cache in March 2026, with a new project identity and governance model. Varnish Software created a new downstream project called Varnish Cache, governed by the company, which is not considered the continuation of the former Varnish Cache FOSS project.

Fox Is Buying Roku

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San Francisco Weighs PG&E Takeover Amid Soaring Utility Costs

https://cdn.kqed.org/wp-content/uploads/2026/05/Nav-News-Election-2026@2x.png
Pg&e's ceo is set to earn $1.4 million in 2026. the city has been in a protracted battle over whether or not to leave the utility - despite rising electricity costs u003ca href="https://www.kqed.org/news/12082876/electricity-bills-are-going-up-here-is-why

Show HN: Veterinarian turned founder, AI lawn diagnosis

https://grassdx.com/img-brown-patch.jpg
Upload photos of your lawn and enter your ZIP code for a free AI diagnosis and personalized treatment plan tailored to your region and grass type. Get instant results with DIY product links, subscription services, or professional help options.

"No Feigning Surprise"

https://wizardzines.com/images/main-og-image.png
If you want to see more comics like this, sign up for my saturday comics newsletter or browse more comics!

Under-16s to be banned from social media, Starmer announces

https://ichef.bbci.co.uk/ace/standard/640/cpsprodpb/vivo/live/images/2026/6/15/4b899f23-90bf-4e55-9d62-e72ecf76ca32.jpg.webp
Keir Starmer announced a ban on under-16s using social media, citing concerns over children's happiness and safety. The UK government plans to use a similar model to Australia's ban, which includes platforms like YouTube, TikTok, and Facebook.

Techno-libertarians are flocking to the Caribbean

https://www.economist.com/cdn-cgi/image/width=1424,quality=80,format=auto/content-assets/images/20260613_AMD001.jpg
Olivier Janssens plans to build a huge enclave called "Destiny" on Nevis, accommodating 10,000 new residents with their own currency and courts. Locals are outraged, calling it a poor investment and a threat to their island's way of life.

The Raku Foundation is born

The Raku Foundation was registered in the Netherlands on May 1, 2026, to support the Raku language and community. It will allow Raku to have its own independent representation and fundraising, separate from the Perl and Raku Foundation.

Launch HN: Drafted (YC P26) – Models for residential architecture

Nick is the founder of Drafted, a platform training AI to generate residential architecture from structured design constraints. Drafted aims to make home design more accessible and affordable by allowing users to create custom floor plans and elevations in seconds.

Anthropic flies staff to D.C. to clean up White House fight

https://images.axios.com/3WFAWDJ9chVwXdh12lh1SLpn3ks=/0x0:4293x2415/1920x1080/2026/06/14/1781460696100.jpeg?w=3840
Anthropic staff meet with White House officials to resolve dispute over safety concerns. Export controls have taken top models offline, including Mythos and Fable.

Unity vs. Floating Point

https://aras-p.info/img/blog/2026/unity-float-script-debug.png
System.MathF is generally faster than UnityEngine.Mathf due to direct float-native implementations. However, it's not supported by Burst.

Swedish parliament abolishes permanent residence visas for migrants

Sweden's Riksdag voted to abolish permanent residence permits for those in need of protection and long-term residents. The change aims to reduce asylum-related immigration and improve integration by 12 July 2026.

Horizons JPL Solar System Data Demo and NASA DSN Updates: Datastar, Common Lisp

Click on a planet to see JPL Horizons details | NASA Deep Space Network logs update in the background (all antenas) Demo for Datastar + Common Lisp / by fsm ΛↃ lambda combine

Smashed Toilet Phone Web Server

A person revived a damaged phone by charging it and discovered Android's mouse and keyboard support. They repurposed the phone as a web server using various software options, including Apache, PHP, and Cordova, and integrated hardware features like Bluetooth and SMS.

The Productivity J-Curve [pdf] (2018)

Researchers model the impact of general-purpose technologies (GPTs) like AI on productivity, finding a "Productivity J-Curve" where early years show underestimation and later years show overestimation. They estimate that intangible investments, such as R&D and software, contribute significantly to productivity growth.

UK Brings in Full Social Media Ban for Under-16s

https://deadline.com/wp-content/uploads/2026/06/GettyImages-2192872000.jpg?w=681&h=383&crop=1
UK Prime Minister Keir Starmer introduced legislation to ban certain apps for under-16s, following Australia's lead. The ban includes restrictions on livestreaming, stranger communication, and AI chatbots, with enforcement to begin in early 2027.

The Alaska Server

https://serialport.org/wp-content/uploads/2026/06/image.png
The Alaska brand was a computer brand sold in Mexico from 1998 to 2006, created by Mexmal Mayorista and Dinastía International Corp, with a focus on Intel-based systems. The company went bankrupt in 2006 and its assets were acquired by ASI Computer Technologies after a series of financial troubles and court cases.

Show HN: Modeloop – From visual algorithms to microcontroller C code

https://www.modeloop.app/_astro/exmpl_model.RbLCVgUg.png
April 1 marks the first day of the new year. the u.s. president's eu summit is set for june 1 - thursday, july 1 at london bridge, where he'll be speaking about the world cup and the euro 2012 qualifying games, including the gold medal match between britain and greece, which takes place in switzerland, will be

Applying Brevity and Language Efficiency in Prompt Engineering

https://prahladyeri.github.io/uploads/cover.jpg
Budget models can handle 80-90% of daily developer tasks with no quality difference if prompted correctly, using structured prompts and minimizing social niceties. Mastering precision, context, and structure in prompts can bridge the gap between budget and premium models for most daily work.

SMTP Relay with Web Dashboard

https://raw.githubusercontent.com/toinbox/simplerelay/main/simplerelay.png
SimpleRelay is a self-hosted SMTP relay with a web dashboard that routes emails through multiple upstream providers based on sender address. It's built with FastAPI, Postfix, and PostgreSQL, and supports auto-detection of SMTP settings and per-provider access control.

Dwarf Fortress in the Browser

https://raw.githubusercontent.com/Sessa93/remote-df/main/docs/screenshots/classic-1.png
Dwarf Fortress can be played in a web browser with audio by running a Docker container on a remote Linux host and streaming it over noVNC with audio via HTTP. The setup uses SSH tunneling, Docker Compose, and Icecast to provide a secure and low-latency experience with features like backup and pause functionality.

PRC-linked spies hid inside medical and military networks for more than a year

https://image.theregister.com/5255734.jpg?imageId=5255734&panox=0.00&panoy=0.00&panow=100.00&panoh=100.00&heightx=0.00&heighty=0.00&heightw=100.00&heighth=100.00&width=960&height=432&format=webp&format=jpg
Chinese government spies, tracked as UNC6508, remained hidden in North American medical and military research networks for over a year, stealing sensitive data and deploying custom malware. They targeted defense and medical research facilities, searching for topics like drone technology and a viral disease transmitted by mosquitoes.

US Government Reportedly Allowing Federal Data Center Rules to Expire

The US government is set to let the Federal Data Center Enhancement Act expire without a clear plan to renew or replace it, despite growing concerns about AI data center impacts. This move comes as the Trump administration takes a hands-off approach to overseeing the AI industry, prioritizing national security and economic competitiveness.

India, UAE partner on AI sovereignty to bypass Google, Microsoft

https://fastly.restofworld.org/uploads/2026/05/India-UAE-AI-2_final.jpg?width=800&dpr=2&crop=16:9
India partnered with UAE's G42 to deploy an AI supercomputer, reducing reliance on Amazon, Microsoft, and Google. The deal gives India control over its AI infrastructure and data, under its own rules, with G42 handling installation and maintenance.

Seventeen Camels and Where They Can Take You

https://mathenchant.wordpress.com/wp-content/uploads/2026/06/graph.jpg?w=644
The user shares six puzzles with a common elegant solution involving adding a seemingly extraneous element to make the problem simpler. Each puzzle has a unique solution that can be derived using the "camel trick" of adding an extra object to facilitate the solution.

Show HN: Deconvolution – a Rust image deconvolution and restoration crate

https://raw.githubusercontent.com/pbkx/deconvolution/main/before_deconvolution.png
Image deconvolution uses a point-spread function and regularization for restoration. Deconvolution provides known-PSF and blind workflows for image recovery.

Show HN: Exploiting Slack's video embeds to achieve E2EE communication

User developed an e2ee Slack app using TypeScript, leveraging openpgpjs for encryption and a slug system for serving iframes. The app encrypts messages locally and stores data in Slack metadata fields.

It doesn't matter if it works

https://henry.codes/img/milan-cover-photo-400w.jpeg
The author argues that AI's widespread adoption threatens the labor force, regardless of its efficacy, as it creates an incentive for companies to de-skill and replace workers. This is a repeat of the Industrial Revolution's de-skilling and concentration of power in the managerial class.

Gliderboy Reinvents Humble Weather Balloon with Flight Home

Bloomberg delivers business and financial information worldwide. It also offers a newsletter on global weather patterns and their economic impact.

Commander Keen Games (free book)

Commander Keen

Magic Buffers and io_uring Registered Buffers

A "Magic Ring Buffer" maps the same memory region into two contiguous virtual addresses, allowing data to wrap around. IO Uring's registered buffers preserve this virtual memory mapping.

Show HN: StarScope – Free astronomy dashboard for observers outside the US/UK

https://d2xsxph8kpxj0f.cloudfront.net/118463213/R9P74ZRWQK7CUT3bqoJpH3/starscope-og-RYg7pZqpZN26ixGi8Qfoep.png
Citizen Astronomy Without Borders offers real-time feeds and alerts for amateur astronomers worldwide. It provides tailored information on planets, deep sky objects, and space weather for users in any hemisphere.

Running local models is good now

https://vickiboykis.com/images/twotower.png
The user has been using local models since their release and has seen significant improvements in accuracy and speed, particularly with the Gemma 4 family, allowing for agentic coding and tasks like refactoring code and writing unit tests. The user is excited about the potential of local models but notes that they still have limitations, such as slow inference and small context windows, and ...

Show HN: Claude Code for Visual Studio (native diff with accept/reject)

https://opengraph.githubassets.com/0058ed096dc61d2944bce58d62e752dbcb4d39740c85c5670189db7c2d80dcfe/firish/claude_code_vs
Claude Code integrates with Visual Studio 2026 through a native diff window with accept/reject and live stats panel. The extension requires the Claude Code CLI, which drives the IDE integration protocol and performs agent work.

My LSM tree was slower than a B-tree. Then I profiled it

https://miro.medium.com/v2/resize:fit:700/1*-KKt58ZOHOphp55q-gKOOw.png
The author built a log-structured merge tree in Go and optimized it from 250,000 to nearly 2 million writes per second by profiling and fixing bottlenecks one at a time. The optimizations included memory-mapping the write-ahead log and SSTable files, using a streaming k-way merge for compaction, and correctly sizing the bloom filter.

I wrote 5000 lines of assembly because I was angry

https://cdn.ujjwalvivek.com/icons/logo512.png
┌─ Minimum Requirements ─┐ │ • iOS Safari 16+ │ │ • Chrome / Edge 90+ │ │ • Firefox 88+ │ └────────────────────────┘

Flip TABLE: storing arbitrary data in iNaturalist

https://inaturalist-open-data.s3.amazonaws.com/photos/651419458/large.jpg
User created a method to encode data in iNaturalist observations by dividing IDs into sequence and value bits. The method allows storing arbitrary data in unordered sets of integers using iNaturalist API and classic project IDs.

Show HN: Continuous Nvidia CUDA PC Sampling Profiler

https://cdn.sanity.io/images/u4y7d6w6/production/7f2c383e50df1d05587219a569dc81399923a648-680x480.svg
The CUDA Profiling Tools Interface (CUPTI) supports Program Counter (PC) sampling, which allows developers to see where their code is spending time down to the instruction level, and this feature is now available in the open source Parca Agent. By sampling the samples and replaying metadata, the Polar Signals profiler can provide instruction-level GPU insight, right down to why a warp ...

Show HN: Nxui – Copy-paste animated UI components for Vue

https://nxui.geoql.in/og.png
nxui is an open-source collection of 180+ animated Vue components built with Tailwind CSS and motion-v. It's free under the MIT license and can be used in personal and commercial projects with no runtime dependency.