Claude Sonnet 5

735 marinesebastian 2026-06-30 18:17:56 UTC anthropic.com Llama Share 406

Claude Sonnet 5 is a more agentic AI model that can make plans, use tools, and run autonomously at a lower price than its predecessor. It's available across all plans and offers a safer and more efficient option for developers, with a lower rate of undesirable behaviors and improved performance on tasks like coding and knowledge work.

Claude Code is steganographically marking requests

1187 kirushik 2026-06-30 16:17:56 UTC thereallo.dev Llama Share 310

Developers give coding agents excessive access for productivity, but this also raises security concerns. A tool like Claude Code hides classification signals in system prompts, making it harder to trust its claims of transparency.

Meta's brain-scanning system reads sentences non-invasively, code open source

40 alok-g 2026-06-30 21:29:56 UTC ai.meta.com Full Share 21

Sorry, something went wrong. We're working on getting this fixed as soon as we can.

Claude Science

294 lebovic 2026-06-30 17:17:56 UTC claude.com Llama Share 103

Claude Science is a public beta app that integrates AI with scientific computing, allowing users to run full analyses on their own infrastructure. It connects to 60+ scientific databases and domain-specific open models, and produces reproducible results with full provenance.

Nano Banana 2 Lite

253 minimaxir 2026-06-30 17:17:56 UTC deepmind.google Llama Share 100

Nano Banana 2 Lite generates and edits images faster and more efficiently, ideal for designers and creators. It provides high-quality images quickly, reducing waiting time and increasing creative flow.

How does a pull-back car work? Illustrated teardown

50 Muhammad523 2026-06-30 20:17:56 UTC mechanical-pencil.com Llama Share 13

A toy car's wind-up mechanism uses a Spiral Spring and gears to store and release energy, allowing it to shoot forward at high speeds. The gear system provides a mechanical advantage, making it easier for kids to wind up the spring with modest force.

I ported Kubernetes to the browser

84 peterdemin 2026-06-30 21:17:56 UTC ngrok.com Llama Share 20

Sam Rose created Webernetes, a browser-based Kubernetes cluster, using LLMs to port 100,000 lines of code from Kubernetes. He reviewed and tested the code to ensure its correctness, and now invites others to use and contribute to the project.

I built a mmWave material classification radar (2025)

112 GL26 2026-06-30 18:17:56 UTC gauthier-lechevalier.com Llama Share 30

The user built a radar that can classify materials, specifically targeting asbestos detection, using a combination of material sciences, wave physics, and neural networks. Due to a lack of funding, the project was stopped after achieving a proof of concept, but the user gained valuable experience in embedded firmware programming, product design, and hardware startup development.

Stroustrup's Rule (2024)

25 bmacho 2026-06-30 20:17:56 UTC buttondown.com Llama Share 1

Logic for Programmers is on sale until Jan 2nd with 40% off. Bjarne Stroustrup's Rule states that beginners need explicit syntax, while experts prefer terse notation.

Building a custom octocopter from scratch with no prior hardware experience

301 noleary 2026-06-30 09:17:56 UTC karolina.mgdubiel.com Llama Share 68

Chris von Csefalvay plans to train a drone to fly with reinforcement learning, focusing on 6 failure classes and simulating motor lag and loop latency. He's using PPO with parallel environments and an asymmetric actor-critic approach to prepare the drone for real-world crashes.

CERN bids farewell to the LHC and enters Long Shutdown 3

59 HelloUsername 2026-06-30 18:17:56 UTC home.cern Llama Share 13

The Large Hadron Collider has completed its final physics run and is undergoing a major maintenance and upgrade program, Long Shutdown 3, to prepare for the High-Luminosity LHC. The upgrade will increase the collider's luminosity by a factor of up to ten, enabling precision studies and potentially uncovering new phenomena.

Long Island's decommissioned nuclear power plant

25 mkmk 2026-06-30 20:17:56 UTC nickcarr.com Llama Share 0

The Shoreham Nuclear Power Plant, closed since 1994, is a unique filming location with a massive reactor control room and various industrial spaces. The plant features a 7-foot thick outer containment wall and a primary containment area with a reactor and fuel rod assembly.

Knoppix

219 hoangvmpc 2026-06-30 13:17:56 UTC knopper.net Llama Share 92

KNOPPIX is a bootable Linux system on CD, DVD, or USB with automatic hardware detection and support for various devices. It can be used as a productive desktop system, educational tool, or rescue system without installing anything on a hard disk.

Show HN: My 13-year-old built an ant colony tracker

18 abelgvidal 2026-06-30 20:17:56 UTC formicarium.es Llama Share 12

An ant colony management system tracks worker history, statistics, and care. It displays colony status, worker count, and data on a main panel with detailed charts and logs on each colony's page.

Memoirs of Extraordinary Popular Delusions and the Madness of Crowds (1852)

152 lstodd 2026-06-30 13:17:56 UTC gutenberg.org Llama Share 50

Charles Mackay's 1841 book "Memoirs of Extraordinary Popular Delusions" studies crowd psychology through historical examples of financial bubbles and mass hysteria. It remains influential in understanding economic speculation and predicting market crashes.

Reading the internals of Postgres: Database cluster, databases, and tables

32 buraksen 2026-06-30 18:17:56 UTC buraksen.dev Llama Share 0

The user is studying Postgres Internals and has been documenting their notes on database clusters, database objects, system catalogs, and storage layouts. They have explored how Postgres stores data in heap tables, uses TOAST tables for oversized values, and accesses data through line pointers and tuple headers.

Waveloop: What Fable left me

53 personjerry 2026-06-30 19:17:56 UTC neynt.ca Llama Share 13

The user created a music visualizer called Waveloop that reveals the harmonic and melodic structure of music, using a chromatic circle and spiral stacked histogram to show pitch class presence. The user analyzed the code behind Waveloop, noting its technical and literary writing style, and its ability to detect ukulele chords in real-time using a live mic mode.

Set up your own DoH (DNS over HTTPS) service

49 Bender 2026-06-30 18:17:56 UTC nochan.net Full Share 22

Have you restarted your computer this week?

74 surprisetalk 2026-06-30 14:17:56 UTC taonaw.com Llama Share 164

The user enjoys manually restarting their Mac on Saturdays, closing all windows and ignoring unsaved work warnings, for a clean desktop environment. This process allows them to disconnect from work and resolve potential computer issues.

Tokyo has only two barley tea makers, we visited one to see how mugicha is made

15 zdw 2026-06-30 20:17:56 UTC soranews24.com Llama Share 4

Barley tea, or mugicha, is a Japanese drink made from roasted barley grains, not tea leaves. It's brewed from twice-roasted barley grains, sourced from domestic growers, and packaged in tea bags for a refreshing summer drink.

Matrix URIs, a URL syntax from Tim Berners-Lee that never shipped (1996)

37 napolux 2026-06-30 18:17:56 UTC w3.org Llama Share 24

Tim Berners-Lee discusses the use of semi-colons in URLs for matrix syntax and relative URLs. He proposes a syntax for pausing relative URLs with named parameter values and questions the significance of parameter order.

Bouvet Island: The Most Remote Island Is Norwegian

6 mooreds 2026-06-30 21:17:56 UTC lifeinnorway.net Prefix Share 2

A dependent territory of Norway, Bouvet Island in the South Atlantic Ocean is the world's most remote island. Here is its fascinating story. When people think of Norway’s most remote regions, they might picture the rugged fjords of the Arctic north or the isolated communities of the Svalbard archipelago. Yet, Norway’s most distant possession lies far from the mainland, in one of the most ...

I built a 10 inch mini rack from aluminium extrusions

38 louwrentius 2026-06-30 15:17:56 UTC louwrentius.com Llama Share 16

The user built a 10-inch mini rack from aluminium extrusions to tidy up their desk and house six 1L PCs for a virtualization project. They encountered some challenges, such as expensive shelves and power distribution units, but overall they are happy with the build and its improved cable management.

Morbid: Debunking Modern Longevity Science

28 nabbed 2026-06-30 20:17:56 UTC newyorker.com Llama Share 16

Author Saul Newman argues that many reported centenarians are actually younger due to bad record-keeping. Healthy habits alone can't stop aging, and societal conditions play a larger role in determining life expectancy.

Amazon seller reveals glimpse of shadow bribery market

69 petethomas 2026-06-30 18:17:56 UTC latimes.com Llama Share 34

Amazon seller Jack Nekhala reported being offered a bribe to retrieve frozen funds after his account was suspended for violating review policies. Nekhala documented his experience with a woman offering to pay an Amazon employee to access his account records.

A peek into Reddit's anti-spam internals

73 OuterVale 2026-06-30 17:17:56 UTC lyra.horse Llama Share 15

Reddit's spam filter system, which includes spamurai, uses various methods to detect and remove spam content. The system can see internal removal reasons, but only sitewide admins can view them.

RF hacking my cloud-controlled ceiling fan

19 sammycdubs 2026-06-30 19:17:56 UTC samwilkinson.io Llama Share 8

The user wanted to control their Dreo ceiling fan locally through Home Assistant, but it only had cloud-based smart home integration. They decoded the remote's RF commands using an RTL-SDR and recreated them with an ESP32 board.

Understanding lattice risks: Many differences between marketing and reality

3 ledoge 2026-06-30 21:29:56 UTC blog.cr.yp.to Prefix Share 0

I have a short new page giving general context for the following and links to further information, so I'll just jump straight into the specific topic here. Here's a paragraph that appeared on 29 June 2026 as supposed justification for using solo ML-KEM rather than ECC+ML-KEM: "I do not believe the risk of ML-KEM (and ML-DSA) to be severe: there is no known cryptanalysis currently ...

Superpowers 6

6 seahorseemoji 2026-06-30 21:29:56 UTC blog.fsck.com Prefix Share 0

TL;DR: Superpowers 6 is much, much faster and burns many fewer tokens to get the same high-quality outcomes. If you're tokenmaxxing, maybe skip this release, but if you care about your builds being up to 50% faster and up to 60% cheaper, you're going to love Superpowers 6. A week ago, we were gearing up to release Superpowers 5.2. We'd slipped the release a couple of times already ...

1.38 Millimeter Microcontroller

133 kristianpaul 2026-06-30 07:17:56 UTC ti.com Llama Share 88

The MSPM0C110x microcontrollers are part of the MSP highly-integrated ultra-low-power 32-bit MCU family based on the enhanced Arm Cortex-M0+ core platform operating at up to 24MHz frequency. They offer high-performance analog peripheral integration, support extended temperature ranges, and operate with supply voltages from 1.62V to 3.6V.