Claude Sonnet 5

770 marinesebastian 2026-06-30 18:59:00 UTC anthropic.com Llama Share 433

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

1246 kirushik 2026-06-30 15:59:00 UTC thereallo.dev Llama Share 338

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.

From brain waves to words: a new path to communication without surgery

64 alok-g 2026-06-30 21:59:00 UTC ai.meta.com Full Share 38

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

Claude Science

314 lebovic 2026-06-30 17:59:00 UTC claude.com Llama Share 107

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

271 minimaxir 2026-06-30 16:59:00 UTC deepmind.google Llama Share 102

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

63 Muhammad523 2026-06-30 20:59:00 UTC mechanical-pencil.com Llama Share 16

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.

TabFM: A zero-shot foundation model for tabular data

13 brandonb 2026-06-30 22:10:00 UTC research.google Llama Share 2

TabFM is a foundation model for tabular data classification and regression that uses in-context learning to eliminate manual model training and hyperparameter tuning. It achieves high-quality predictions in a single forward pass, outperforming traditional supervised algorithms.

I ported Kubernetes to the browser

108 peterdemin 2026-06-30 20:59:00 UTC ngrok.com Llama Share 25

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.

Hatari – Online Atari ST/STE/TT/Falcon Emulator

6 gregsadetsky 2026-06-30 22:36:00 UTC hatari.frama.io Full Share 0

Hatari - the Atari ST/STE/TT/Falcon emulatorResize canvas Lock/hide mouse pointer

Leanstral 1.5

35 vetronauta 2026-06-30 20:59:00 UTC docs.mistral.ai Full Share 1

An updated Lean 4 formal proof engineering model optimised for automated theorem proving and autoformalization. 119B total parameters, 6.5B active.

I built a mmWave material classification radar (2025)

116 GL26 2026-06-30 17:59:00 UTC gauthier-lechevalier.com Llama Share 32

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)

36 bmacho 2026-06-30 20:59:00 UTC buttondown.com Llama Share 4

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.

CERN bids farewell to the LHC and enters Long Shutdown 3

75 HelloUsername 2026-06-30 17:59:00 UTC home.cern Llama Share 19

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

40 mkmk 2026-06-30 19:59:00 UTC nickcarr.com Llama Share 3

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.

Understanding lattice risks: Many differences between marketing and reality

9 ledoge 2026-06-30 21:59:00 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 ...

Building a custom octocopter from scratch with no prior hardware experience

308 noleary 2026-06-30 09:59:00 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.

Knoppix

227 hoangvmpc 2026-06-30 12:59:00 UTC knopper.net Llama Share 94

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.

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

38 buraksen 2026-06-30 17:59:00 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.

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

23 abelgvidal 2026-06-30 20:59:00 UTC formicarium.es Llama Share 17

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.

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

25 zdw 2026-06-30 19:59:00 UTC soranews24.com Llama Share 7

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.

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

156 lstodd 2026-06-30 12:59:00 UTC gutenberg.org Llama Share 51

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.

Have you restarted your computer this week?

83 surprisetalk 2026-06-30 14:59:00 UTC taonaw.com Llama Share 178

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.

I built a 10 inch mini rack from aluminium extrusions

48 louwrentius 2026-06-30 15:59:00 UTC louwrentius.com Llama Share 18

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.

Waveloop: What Fable left me

71 personjerry 2026-06-30 18:59:00 UTC neynt.ca Llama Share 19

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

53 Bender 2026-06-30 18:59:00 UTC nochan.net Full Share 22

Ante: A new way to blend borrow checking and reference counting

11 g0xA52A2A 2026-06-30 21:59:00 UTC verdagon.dev Llama Share 0

Ante is a work-in-progress language that aims to blend reference counting and borrow checking without run-time crashes. It achieves this through its concept of shape-stability and local uniqueness rules.

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

43 napolux 2026-06-30 18:59:00 UTC w3.org Llama Share 26

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.

RF hacking my cloud-controlled ceiling fan

29 sammycdubs 2026-06-30 19:59:00 UTC samwilkinson.io Llama Share 11

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.

Amazon seller reveals glimpse of shadow bribery market

84 petethomas 2026-06-30 18:59:00 UTC latimes.com Llama Share 44

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.

Zluda 6 release (run unmodified CUDA applications on non-Nvidia GPUs)

138 Tiberium 2026-06-30 10:59:00 UTC vosen.github.io Llama Share 13

ZLUDA has released version 6 with improved Windows support, PhysX pre-alpha, and texture support for Blender. Development is now a weekend project with less frequent updates.