Show HN: I replaced a $120k bowling center system with $1,600 in ESP32s

The user, an SRE, bought an abandoned bowling center and replaced the expensive scorekeeping system with an open-source alternative using ESP32 and Raspberry Pi for under $400 per lane-pair. This project, called OpenLaneLink, aims to make bowling more affordable and reduce vendor lock-in by providing an open hardware and software stack.

Qwen 3.8

https://pbs.twimg.com/media/HNk8XP_aoAAUShj?format=webp&name=medium
Qwen3.8 is launching with 2.4T parameters, considered one of the most powerful models today. It's available on Alibaba's Token Plan, Qoder, and QoderWork for early testing.

Transcribe.cpp

transcribe.cpp is a ggml-based transcription library that supports various ASR models, ensuring accurate and fast local inference. It's designed to make locally run ASR easier, with a strong focus on performance, accuracy, and ease of use.

Claude Code uses Bun written in Rust now

Claude Code uses a preview of Bun v1.4.0, a not-yet-released version, indicating its use in production. This suggests Bun in Rust is being run on millions of devices.

What I learned selling 2,500 MIDI recorders: Hardware is not so hard

https://chipweinberger.com/assets/20260719-hardware-is-not-so-hard/jamcorder-in-situ.png
The creator of Jamcorder, a simple automated piano recording device, found the hardest part of building it was the software, not the hardware, which took over 3 years to develop. The experience suggests that hardware development is not as difficult as its reputation, and with proper planning, it's possible to successfully ship a hardware product at a medium scale.

AI Mania Is Eviscerating Global Decision-Making

The author believes that many companies are experiencing "AI psychosis," where they are overly enthusiastic about AI adoption without understanding its actual benefits. This has led to a culture of fear and frustration among employees who are skeptical about AI's value.

OpenAI reduces Codex Model Context Size from 372k to 272k

The system is preventing the addition of this suggestion to a batch due to various restrictions including no code changes, deleted lines, and pending reviews. The suggestion cannot be applied at this time and should be checked later.

AI advice made people less accurate but more confident – sudy

Researchers found AI advice suppressed judgment suspension from 44% to 3% and accuracy from 27% to 9%, while confidence rose from 30% to 76%. People trusted wrong AI answers and became worse at judging their own knowledge.

Minecraft: Java Edition now uses SDL3

https://www.minecraft.net/content/dam/minecraftnet/games/minecraft/key-art/Global-Header_Image-Tile_MC-Java-Bedrock_570x321.jpg
The Minecraft snapshot has switched to SDL3 for window management, input, and platform integration, and added new item components for custom furnace fuels and technical changes for signs, world generation, and loot tables. Several bug fixes and changes have been made, including improvements to fullscreen mode, debug overlay, and loot table types, as well as fixes for various issues such as ...

Better and Cheaper Than IPTV

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Castor is a CLI tool that extracts video streams from websites, handles format compatibility, and casts to your TV in real time, with optional auto-generated subtitles. It requires a config.yaml file with device and source settings, and can be run natively or using Docker with a Chrome/Chromium and ffmpeg setup.

Orion Browser by Kagi

https://storage.googleapis.com/prod-kagi-lab-kagi-cms/orion-1.1-main-hero.webp
Orion browser offers native WebKit speed, absolute privacy, and limitless customization with zero-telemetry browsing and ad-blocking. It supports Safari, Chrome, and Firefox extensions and is 100% funded by users with no ads or third-party deals.

Moonshot AI suspends new subscriptions due to Kimi K3 demand

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Kimi K3 has exceeded capacity due to high demand, so new subscriptions are paused to protect existing users. Capacity will be added and new spots will reopen in batches, with membership plans being split into two more focused options.

I joined the IndieWeb, here's what I learned

https://en.andros.dev/static/img/footer/org-social.svg
The IndieWeb is a people-focused alternative to the corporate web, promoting personal, independent websites that share commitments such as owning your data, using visible data, and being in control. It defines a set of principles and standards, including microformats, webmention, and micropub, to help individuals build and maintain their own websites and connect with others in a decentralized network.

The Last MPEG-4 Visual Patent Has Expired

The last MPEG-4 Part 2 patent expired in Brazil today, marking the end of all patents for the technology. This milestone was confirmed by the VIA Licensing Alliance, ending a long period of patent protection.

Qwen 3.8 Max Preview

https://img.alicdn.com/imgextra/i4/O1CN01zpwabS26hS4SERE5p_!!6000000007693-2-tps-248-112.png
Token Plan offers Individual and Team plans for AI building, with advanced models available at a lower cost. To subscribe, buy Token Plan, get credentials, and configure AI tools with the base URL and API key.

We want Texans to know their rights

https://www.eff.org/files/2026/07/09/billboard.jpeg
A Texas sheriff's office used ALPR cameras to track a woman suspected of self-managing an abortion, highlighting the threat of surveillance to reproductive freedom. Mayday Health, a nonprofit, is working to inform people about their rights and options through billboards and a website that prioritizes digital privacy.

Bananas sprout in Rayleigh Garden UK after 15 years

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Bananas may become more common in British gardens due to warmer summers and milder winters. Tropical plant enthusiasts have successfully grown bananas in the UK, using techniques like creating a microclimate effect to protect from frost.

I burned all my tokens researching how to save tokens

https://quesma.com/_astro/agents-stack.T_5QhpZt_29YbQP.png
The user optimized their AI research setup using existing subscriptions to Claude, Codex, and Antigravity, achieving a 10 times longer research time without extra cost by using shared memory and model orchestration. They also implemented verification rules to ensure the quality of findings and used a hybrid approach of human verification and AI research supplementation to build a reliable ...

HomeLab #1: MikroTik as a Home Router

https://justsomebody.dev/_astro/hero.BmPd6k_o_Z25lme5.webp
The user set up a Mikrotik L009UiGS-RM router for their homelab to have better control over traffic and offload WiFi, focusing on wired connections for faster local network connections. They configured the router for their ISP's PPPoE over VLAN 35 with a private IPv4 address and implemented FQ-CoDel queue discipline to mitigate bufferbloat and improve latency.

Texas Police Spent $4.5M on Four Chevy Tahoes

https://www.thedrive.com/wp-content/uploads/2026/07/police-tahoe.jpg?quality=85&w=1920
Texas police bought four $4.5 million Chevy Tahoes equipped with Cognyte's FalcoNet surveillance system, which secretly tracks people's data by intercepting phone connections to cell towers. The system's legality is questionable, and its use raises concerns about privacy and the corpo-surveillance state.

The death and rebirth of my home server

https://sgt.hootr.club/blog/home-server-rebirth/popillia-japonica.jpg
The user's Raspberry Pi 4B's microSD card failed due to excessive write cycles, prompting the user to take precautions to minimize writes and replace it with a new high-endurance card. The user repurposed old hard drives to create a btrfs pool with raid1 replication, set up a backup system, and configured various services to run on the new setup.

Ollama: All Aboard Open Models

https://ollama.com/public/blog/founders.jpg
Michael and I co-founded Kitematic, which was acquired by Docker, and later built Ollama, a platform for developers to access open models. Ollama has become the leading platform, serving 8.9 million developers and aiming to make open models effortless to run.

Terence McKenna's Mega Bad Trip (2025)

https://psychedelics.community/storage/images/image-697101af8c9f0-tablet.webp
Terence McKenna's terrifying mushroom trip in Hawaii in 1988-89 changed his relationship with psychedelics and led to a crisis of faith in his heroic dose theory. He continued to promote psychedelics publicly but privately struggled with the risks and consequences of his experiences.

Heavy TV watching associated with smaller brain structures, study finds

https://dornsife.usc.edu/news/wp-content/uploads/sites/7/2026/06/raichlen-sedentary-brain-top.jpg
Researchers found that frequent TV watching in midlife is linked to reduced brain volume and cognitive decline. The study suggests that what people do while sitting may matter more than previously thought, and TV watching may be particularly detrimental to brain health.

Modder Runs GTA III Inside GTA: San Andreas on an In-Game TV

https://cdn.videocardz.com/1/2026/07/GTA3-INSIDE-GTA-SA-MOD-1200x745.webp
Dryxio demonstrated GTA III running on a TV inside GTA: San Andreas, with both games sharing the same Direct3D device and allowing player control switching. This builds on his earlier mod that ports GTA III and Vice City into San Andreas, running each game as an independent engine.

FDA approves new kind of cholesterol pill

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ECC and DDR5

ECC RAM corrects errors in memory before reaching the CPU, using Hamming codes to detect and correct single-bit errors. ECC RAM is recommended for systems storing important data, as it can prevent data corruption and lost time due to RAM hardware errors.

Clever hacker fits 537,000 domains in a $5 ESP32 ad-blocking dongle

https://cdn.mos.cms.futurecdn.net/wZBPyRvxidw3AakhCcUWMQ.jpg
A hardware-based ad-blocking DNS filter can be built for under $5 using a $5 microcontroller like the ESP32-C3, which can block over 500,000 domains with 10ms latency. The device uses hashing to store the blocklist in its limited flash memory, allowing it to function as a backup DNS server.

Americans are angry about data centers. Politicians are feeling the pressure

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HMD Touch 4G

https://images.ctfassets.net/wcfotm6rrl7u/2XINuLzLUuErhEN8CdCEP9/159df9df7a71880c5fd3a8b95b312ce6/HMD_Touch_4G-KV-Hero.png?w=1920&fm=webp&q=80
HMD Touch 4G is a hybrid phone combining feature phone simplicity with smartphone features like video calls and Wi-Fi support. It offers a touchscreen, Cloud Phone Service, and Express Chat app for texting and video calling.

Ask HN: What are your favorite blogs not about AI?

User is looking for blogs not about AI, shares favorite blogs including beforemario.com, devblogs.microsoft.com/oldnewthing, and iquilezles.org/blog. User also shares their own blog and a clean comedy newsletter.

C64 Basic Dungeon Crawler: Goblin Attack (C64 Basic Part 8)

https://retrogamecoders.com/wp-content/uploads/2026/07/c64-dungeon-crawler-coding-lesson-8-commodore-basic-roguelike-programming-1200x900.png
The user implemented a turn-based game with goblins that chase the player, using parallel arrays to represent goblin positions and health, and added a simple AI for the goblins to move towards the player. However, the game broke due to a memory bug caused by the custom character set being placed in the path of the growing arrays, which was fixed by trimming the charset and adjusting the ...

The Art of Insight in Science and Engineering – Mastering Complexity(2014) [pdf]

The book teaches how to build insight and understanding by mastering complexity using various tools such as divide-and-conquer reasoning, making abstractions, and dimensional analysis. It uses everyday examples like estimating the volume of a dollar bill and the capacity of a highway to demonstrate how to apply these tools and cultivate insight rather than precision.

Biggest Probabilistic Computer Turns Noise into Answers

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Scientists created a 1 million p-bit probabilistic computer, the largest yet, using 18 field-programmable gate arrays to tackle stochastic problems. This breakthrough may enable building arbitrarily large probabilistic computers from many chips, solving problems like optimization and route finding.

A new Intel Itanium (IA-64) emulator that boots Windows

https://raymii.org/s/inc/img/w2k3-luna-itanium.png
A new Intel Itanium emulator has been released, allowing Windows Server 2003 and Windows XP 64-bit to boot. The emulator runs slowly but is a significant breakthrough in non-x86 CPU emulation.

Natural experiments prove phytoplankton carbon removal works

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Adding nutrients to the ocean to stimulate phytoplankton growth and carbon removal is a natural process that has been occurring for millions of years through various mechanisms such as volcanic eruptions, dust storms, and whale poop. Despite concerns about potential harm, numerous studies have shown that intentionally adding nutrients to the ocean would be safer and more controlled than the ...

How to Abandon Your Climate Commitments and Get Away with It

US companies made bold climate promises but many have since delayed or abandoned them due to cost and difficulty. The shift is partly attributed to the Trump administration's push against climate goals and environmental initiatives.

Scrying the AMD GFX1250 LLVM Tea Leaves

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AMD's MI455X Datacenter Accelerator, part of the MI400 series, features improved register allocation, increased local memory, and enhanced AI capabilities. The GFX1250 architecture includes new features such as cluster-level barriers, atomic loads and stores, and explicit prefetching, which may improve performance in machine learning and compute tasks.

Show HN: A canvas-based note taking and organizer app

https://www.passinote.app/gifs/SWITCH_DROP.gif
Notes, documents, labels — place them wherever your brain wants them. No grid, no folders, no rules.

Deepsec

https://opengraph.githubassets.com/638903b8f8fe8885869924577d9a80e0448fa971ffd5b7b5ddeecede817ec19c/vercel-labs/deepsec
Deepsec is an agent-powered vulnerability scanner that performs on-demand review of code in large-scale repos, surfacing hard-to-find issues. It can be run in parallel across worker machines and resumes scans from where it left off if interrupted.

Perforce charges $500 for training training videos.. and it's AI narrated

Neither GCC nor Clang are compliant with standard C++

C++ function types have language linkage (C++, C, or implementation-defined) which affects distinctness even with identical types. GCC and Clang don't store language linkage info, causing potential compilation failures when overloading function pointers.

Half a Second – a book about the XZ backdoor

A Microsoft engineer discovered a two-year-old backdoor in XZ Utils, a small Linux compression tool, after noticing a half-second delay in logging in. The incident highlights the imbalance in funding for open-source projects, where small, crucial components are often maintained by unpaid volunteers.

I built a browser-based P2P file transfer tool using WebRTC

https://airdows.com/assets/og-airdows.jpg
AirDows permite transferir fotos, videos y documentos en su calidad original entre dispositivos sin crear un enlace de descarga. La velocidad depende de la conexión y la estabilidad de los dispositivos y la red.

LLM-Integrated Multivariable Calculus Course

https://vz-b74644aa-e15.b-cdn.net/9d5d4722-0001-4a1e-97d1-4c127d7f170b/thumbnail_b49191b5.jpg
The world's first computer-animated multivariable calculus course in English, German, French, Spanish, Italian, and Portuguese.

IceCream – Never use print() to debug again

https://opengraph.githubassets.com/0e94ea3ae657913d81f1c09c771f0e590d3810add0bbc5866ecddda56fbf026f/gruns/icecream
IceCream is a Python library that makes print debugging sweeter with its ic() function. It can be used to inspect variables, expressions, and function calls with customizable output and logging.

The Mighty Big Array of Finn Jensen LA8YB

https://la0by.darc.de/LA8YB_Finn.jpg
Finn holds the WAS award for confirmed contacts with all 52 US states on 144 MHz via the Moon. LA8YB Finn passed away on August 20, 2011, after a fight against cancer.

Less Is More: Why Audio on SoundCloud Looks Different

https://developers.soundcloud.com/blog/static/c3deaa707b26e3482cc95abb9bbd9e16/8ff1e/native_vs_fdk_256k.png
SoundCloud upgraded its AAC encoder to Fraunhofer's libfdk_aac, improving perceptual audio quality. The new encoder removes high frequencies above 17 kHz, which humans can't reliably hear, to improve accuracy in the audible range.

Qwen 3.8 Max

https://img.alicdn.com/imgextra/i4/O1CN01DG7AhY1iKxrQybqcA_!!6000000004395-2-tps-1398-1011.png
Qwen is a unified AI model that empowers creative projects, research, and web development with deep understanding and precise control. It offers multimodal understanding capabilities, intelligent search, and advanced reasoning for tackling complex tasks efficiently.

Jurassic Park packed $4M of legit 1993 computer hardware

https://cdn.mos.cms.futurecdn.net/rLmxdb5UFzzywLdK73fFC4.jpg
Fabien Sanglard detailed the computers used in the original Jurassic Park movie, listing six working computers, a PDA, and other equipment on his website. The film's special effects coordinator, Cory Faucher, confirmed that all set equipment was real, with a total cost of $1,725,000 in 1992, equivalent to over $4 million today.

Mirror your GitHub repos to tangled.org automatically

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synchub mirrors your public repositories to tangled.org. three steps, then every push stays in sync. install the github app on the repositories you'd like to mirror (only public, non-fork repos are synced) install the github app

Show HN: How much profit does your employer make per employee?

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Enter your US employer's name or ticker symbol and your compensation. Works best for US-listed public companies. We never collect or store your salary. See FAQ for details on calculations and responses to common objections.

Boys' ADHD symptoms linked to addictive social media use in new study

https://img-s-msn-com.akamaized.net/tenant/amp/entityid/AA288A28.img?w=768&h=512&m=4&q=90

Show HN: Akashic – A self-hosted intelligence workspace inspired by Palantir

Akashic is a self-hosted intelligence workspace combining various data sources onto an interactive map for exploration and correlation. It is not an authoritative source and should not be used for safety, navigation, or other critical decisions.

Show HN: OfflineTTS — Free browser-based TTS & STT that runs locally

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OfflineTTS is a private AI audio toolkit that runs in the browser, offering text to speech, audio to text, and subtitle generation. It uses AI models like Kokoro, Whisper, and others, allowing for offline usage and direct export paths for voice, transcript, and document audio work.