Show HN: Kage – Shadow any website to a single binary for offline viewing

https://raw.githubusercontent.com/tamnd/kage/main/docs/static/demo.gif
kage clones websites into offline folders with scripts removed, preserving the site's appearance. It offers a binary or container image for use with Chrome or Chromium.

Rio de Janeiro's "homegrown" LLM appears to be a merge of an existing model

https://opengraph.githubassets.com/5e60dd96a883e5a56f80a99fda28dc0d9436df50171f4d8da0c512be6ffcf9b0/nex-agi/Nex-N2
Rio-3.5-Open-397B is a merged model of Nex and Qwen3.5-397B-A17B, with no evidence of its own training. Its weights are a 0.6 Nex to 0.4 Qwen blend.

Firewood Splitting Simulator

Split firewood in 3D — an interactive Three.js experience

Not mine, but it's a website where you can use a segment display

8 16 24 34 43 66 93 6 21 23 50 52 55 Just start typing!

Ask HN: What are you working on? (June 2026)

User discussed various projects including a CRM with agent baked in, an ActivityPub server, and an open-source search engine called Uruky, as well as other projects such as a 3D optics simulator, a video lie detector, and a Peak Flow Meter Diary app for asthma patients. They also mentioned other projects like Totem, a collaborative knowledge management system, and HN Alerts, a site for ...

Perlisisms

Programming principles emphasize modularity, simplicity, and adaptability, while also highlighting the importance of understanding the underlying mechanisms of computation. Effective programming requires a balance between creativity, discipline, and attention to detail, as well as a willingness to learn and adapt to new technologies and ideas.

The Birth and Death of JavaScript (2014)

The talk covers JavaScript's history from 1995 to 2035, discussing its flaws and positive impact. It's a science fiction comedy that explores programming's evolution.

Caddy compatibility for zeroserve: 3x throughput and 70% lower latency

zeroserve is a high-performance HTTPS server that JIT-compiles Caddyfiles to eBPF and native machine code. It supports HTTPS reverse proxy and custom code execution via eBPF.

Formal Methods and the Future of Programming

https://blog.janestreet.com/formal-methods-at-jane-street-index/oxcaml-prover.png
Jane Street is now excited about formal methods after being skeptical due to high costs. They're building a team to make formal methods useful for software development.

Chaosnet

Chaosnet is a local network, that is, a system for communication among a group of computers located within one or two kilometers of each other. The name Chaosnet refers to the lack of any centralized control element in this network. Chaosnet was originally developed in 1975 by the Artificial Intelligence Laboratory of the Massachusetts Institute of Technology as the internal communications ...

The only scalable delete in Postgres is DROP TABLE

https://planetscale-images.imgix.net/assets/postgres-table-update-delete-C_kRTY7t.png?auto=compress%2Cformat
Deleting large amounts of data in Postgres can be inefficient due to write and replication overhead, but using DROP TABLE or TRUNCATE can scale much better. Structuring your schema with partitioning and avoiding large bulk DELETE operations can prevent bloat and improve database health.

FarOutCompany

https://faroutcompany.com/wp-content/uploads/Screenshot-2026-06-13-at-7.27.45-PM.png
Explore the work of under-appreciated artists of the 1960s and ‘70s counterculture.

Lisp's Influence on Ruby

Ruby's design is based on a simple Lisp, stripping out macros and s-expressions, then adding an object system, blocks, and Smalltalk-style methods. Ruby's functional features, such as blocks and Enumerable methods, are borrowed from Lisp.

No, everyone is not using AI for everything

https://substackcdn.com/image/fetch/$s_!n_r-!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F957dc207-33f4-4e66-a821-66f340c9a623_1424x1404.png
About one third of the US population actively uses AI, one third occasionally uses it, and one third never uses it, contradicting the narrative that everyone is using AI for everything. People's concerns about AI, such as job replacement and privacy violation, and skepticism about its usefulness are driving this limited adoption, with many preferring to opt out or use AI in a more controlled manner.

I indexed 669 GB of my GoPro videos using my M1 Max computer and local ML models

You have 2,207 GoPro videos and used an M1 Max project to index and search for interesting moments. The project indexed 628 videos and sent the best clips to DaVinci Resolve.

USB Power Delivery: Plugging into the Benefits

https://www.aptiv.com/images/default-source/feature-stories/the-evolution-of-usb-chart.jpg?sfvrsn=adea4a36_1
USB standards have evolved to deliver faster and more powerful wired connections, with USB PD and EPR supporting up to 240W power levels. Certified products are expected to arrive by 2029, bringing faster device charging and data transfer to various industries.

Show HN: Dual YOLOv8n UAV Detection on RK3588S at 42 FPS Using NPU

https://opengraph.githubassets.com/5a0e11308dcbdae450250eefa98562a84745385c7cc2d6dc455ce865e1bfdd50/alebal123bal/khadas_yolov8n_multithread
This project is a high-throughput, low-footprint computer-vision pipeline for the Rockchip RK3588S SoC that detects UAVs in real-time at 46 FPS with ~140 MB of RAM. It uses YOLOv8n, multi-object tracking, and a language model to provide a natural-language assessment of detected UAVs.

Rome Fell and Nobody Noticed

https://substackcdn.com/image/fetch/$s_!XzuT!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3b1f3f5f-ab17-45f4-838a-2105e43801fa_1192x1208.png
The Roman Empire officially ended in 476 with the deposition of the last western Roman emperor, but the Roman system and institutions continued under the rule of Theoderic, a Goth who preserved it for 33 years. Theoderic's rule maintained continuity with the Roman Empire, with roads repaired, trade continuing, and the Roman governmental system remaining intact.

Global density and biomass of arbuscular mycorrhizal fungal networks

Linux 7.1

https://lore.kernel.org/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=1.25.0
Anubis is a server protection system using Proof-of-Work to prevent aggressive AI scraping. It requires modern JavaScript features, so disable JShelter or similar plugins for this domain.

Show HN: 3D print Z reinforcement via injected loops

https://mgunlogson.github.io/magma/assets/screenshots/04-injection-paths.png
Magma is a research release that injects molten plastic into sealed lattice channels during FDM 3D printing for Z-axis reinforcement. It's a fork of OrcaSlicer that requires no hardware modifications, but its physical print results are still being characterized.

Rio de Janeiro's city government model Rio3.5 beats Qwen3.7 in recent benchmarks

https://pbs.twimg.com/media/HKss_sHacAANNO5.jpg
Alibaba Qwen3.7 slowly fading into irrelevance at the frontier due to proprietary stance. In it's place we have Minimax M3 and... *checks notes* Rio 3.5 397b, made by the municipal IT company of Rio de Janeiro's city government. https://t.co/JgIJYVhoEi https://t.co/lVR83aAvPD

How to earn a billion dollars

To become a billionaire, one must create a startup with exponential growth, which can be achieved by making something users love so much they tell their friends, and then sustaining that growth in a large market. This can be done without cheating, as the key is to understand users deeply and make something that dramatically improves their lives, rather than exploiting them.

Quivers: A year of linear algebra by drawing arrows

https://lisyarus.github.io/blog/media/quivers-a-year-of-linear-algebra-by-drawing-arrows/cover.png
The text discusses representation theory of quivers, a type of directed graph, and its connections to linear algebra and category theory. It explains how quivers can be represented as matrices and how representations can be decomposed into indecomposable ones.

How did Atari apply side art to Arcade Cabinets?

https://arcadeblogger.com/wp-content/uploads/2026/06/img_20171115_155902_38392248716_o.jpg
Atari used screen printing to create its iconic arcade cabinet artwork in the early 80s, applying individual color layers one at a time. The process involved breaking artwork into color layers, creating separate screens for each color, and aligning them perfectly for a clean-looking finish.

Free SQL→ER diagram tool, runs in the browser, nothing uploaded

https://sqltoerdiagram.com/og.png
SQL to ER Diagram is a free, open-source tool that converts SQL schema into interactive ER diagrams in the browser. It supports PostgreSQL, MySQL, SQLite, and SQL Server, with no account or sign-up required.

Honda Civics and the Evil Valet

The author has updated their project on reverse engineering the 2021 Honda Civic headunit, revealing a vulnerability called "EvilValet" that allows arbitrary code execution via the update path. A new tool, ota-builder, has been published to easily prepare update files.

A 'cold blob' in the Atlantic could be a sign of AMOC shutdown

https://media.cnn.com/api/v1/images/stellar/prod/sei-299957227-copy.jpg?c=original&q=w_860,c_fill
A new study found that the "cold blob" in the North Atlantic Ocean is cooling due to the weakening of the Atlantic Meridional Overturning Circulation (AMOC) system. This could lead to a global catastrophe, including accelerated sea level rise and droughts, as the AMOC is heading towards a tipping point.

KPMG pulls report on AI usage due to apparent hallucinations

https://techcrunch.com/wp-content/uploads/2026/06/GettyImages-2276519058.jpg?w=1024
KPMG's report on AI usage contained inaccuracies due to AI hallucinations, prompting an investigation. The firm removed the report and is reviewing its guidelines on AI use, including human oversight and source verification.

Dillo directory – Directory of useful sites that work reasonably well on Dillo

A loose collective of archivists and programmers preserve digital heritage through simple websites. They promote permacomputing and a fruitful web with minimal JavaScript and CSS.