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

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.

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.

Measles surge in Utah sparks fears US could undo decades of progress

https://i.dailymail.com/1s/2026/06/14/14/109342745-15897903-image-a-1_1781443305422.jpg
Utah has seen over 600 measles cases lasting more than a year, with the state reaching 679 cases, the longest-lasting series of measles outbreaks in the US since last year. The outbreak is attributed to years of miscommunication and misinformation about vaccinations.

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.

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.

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.

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.

Swiss voters reject proposal to cap population at ten million

https://www.swissinfo.ch/content/wp-content/uploads/sites/13/2026/06/715600915_highres.jpg?ver=6adc8fee
Swiss citizens rejected a right-wing proposal to limit the population to ten million by a 54.8% majority. The civilian service reform, however, passed with 52.5% of the vote.

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.

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.

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

Global density and biomass of arbuscular mycorrhizal fungal networks

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.

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.

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.

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
Disclaimer: if your first instinct was to think about string diagrams, that's not was this post is about. Cool guess, though. In algebra there's this idea of representations of some object, especially linear representations. It's so important that even chemists typically have the representation theory of finite groups in their curriculum, because those have a profound influence on ...

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.

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.

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.

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.

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.

Dangerous hormone-disrupting chemicals found in US breast milk samples

https://i.guim.co.uk/img/media/949264e2b190900bf6ac7cb2b764b79ba4807533/0_0_6016_4016/master/6016.jpg?width=465&dpr=1&s=none&crop=none
Breast milk samples from Seattle mothers contain high levels of hormone-disrupting chemicals like BPA, BPS, and triclosan. These chemicals pose a serious risk to infants' development and are found in many everyday products, highlighting a widespread problem with chemical regulations.

Extinction-Level Capitalism

https://matthewbutterick.com/elc/images/harvester.jpg
David win­ner: ai is inher­ently polit­ical tech­nology; we see it as an ongoing social process. win-win: if we don't adopt ai whole­heart­edly, we will be losers; ai will deliver goodies a la the u.s. today, he says, but it's not just about jobs; it also affects wealth, politics, and the economy

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.

Don't trust large context windows

https://garrit.xyz/assets/five-years-of-blogging-cover-3d.png
The author describes the limitations of large context windows in LLMs, where attention drops off after 100k tokens, making them mostly a marketing number. To avoid this, the author uses a "breadcrumb approach" by writing and passing a spec to new sessions, keeping the working session in the smart zone.

Conversations with a six-year-old on functional programming (2018)

The author explained free theorems to a child by comparing them to function machines, then created a game where the child guesses the function machine's output based on its type. The child enjoyed the game and was able to guess some functions correctly, but struggled with others.

Historic co-determination helps monasteries navigate digital change

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FreeOberon – Open-Source, Cross-Platform, Free Pascal/Turbo Pascal-Like Language

https://camo.githubusercontent.com/51174850e04a81eb65a9e0624ddf3facf245092676b4cf9b0442ce59cff1f2cb/687474703a2f2f667265652e6f6265726f6e2e6f72672f696d616765732f73637265656e73686f742e706e67
Free Oberon is a cross-platform IDE for the Oberon programming language, available for Windows, macOS, and Linux. It allows users to write, compile, and run programs in Oberon, with features like automatic linking and error detection.