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How to write Rust in the Linux kernel: part 3

news.ycombinator.com Unknown 2025-07-20 14:27:17

How to write Rust in the kernel: part 3 [LWN subscriber-only content] Welcome to LWN.net The following subscription-only content has been made available to you by an LWN subscriber. Thousands of subscribers depend on LWN for the best news from the Linux and free software communities. If you enjoy this article, please consider subscribing to LWN. Thank you for visiting LWN.net! The interfaces between C and Rust in the kernel have grown over time; any non-trivial Rust driver will use a number of

Topics: data kernel lock memory rust

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Block shares soar 10% on entry into S&P 500

cnbc.com Ari Levy 2025-07-20 23:55:24

Jack Dorsey, co-founder and chief executive officer of Twitter Inc. and Square Inc., listens during the Bitcoin 2021 conference in Miami, Florida, on Friday, June 4, 2021. Block shares jumped more than 10% in extended trading on Friday, as the fintech company gets set to join the S&P 500, replacing Hess . It's the second change to the benchmark this week, after S&P Global announced on Monday that ad-tech firm The Trade Desk would be added to the S&P 500. Trade Desk is taking the place of softw

Topics: 500 block company index market

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HomeKit Weekly: ThorBolt X1 might be the best value home key lock with built-in Thread support

9to5mac.com Bradley C 2025-07-21 03:00:00

If you’re buying a HomeKit door lock in 2025 and it doesn’t support home key, keep moving. The tap to unlock experience with iPhone or Apple Watch is the feature that makes smart locks feel like a major upgrade over a physical key or even unlocking via the Home app. It’s fast, reliable, and once you get used to it, there’s no going back. The ThorBolt X1 checks all the boxes for a great HomeKit lock and brings a few nice surprises for under $150k. Some of my favorite gear Abode Home Security Sys

Topics: home key lock thorbolt x1

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Bored with your phone’s lock screen? This brand lets you replace it with an eye-tracking 3D game

androidauthority.com Unknown 2025-07-22 20:27:45

Paul Jones / Android Authority TL;DR Huawei’s flagship Pura 80 Ultra features 3D interactive lock screens that move in sync with the phone’s physical movement. The interactive lock screens also function as games, utilizing hand and eye-tracking features to manipulate objects. While the hand and eye-tracking gestures likely utilize the phone’s front camera, there is no usage indicator, which raises privacy concerns. Android phones have always offered comprehensive customization options for th

Topics: huawei interactive lock phone screen

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Stone blocks from the Lighthouse of Alexandria recovered from seafloor

news.ycombinator.com Dario Radley 2025-07-19 13:51:06

After centuries underwater, 22 huge stone blocks of the ancient Lighthouse of Alexandria, one of the Seven Wonders of the Ancient World, have been recovered from the Mediterranean seabed, a breakthrough in an ambitious digital reconstruction effort. Restoration is part of the ongoing “PHAROS” project, led by archaeologist and architect Isabelle Hairy of France’s National Center for Scientific Research (CNRS), along with Egypt’s Centre d’Études Alexandrines (CEAlex) under the authority of Egypt’

Topics: alexandria blocks century documentary lighthouse

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I’ve tried many clock apps on Android, but none have this one excellent Samsung Clock feature

androidauthority.com Unknown 2025-07-25 04:00:18

Megan Ellis / Android Authority While I have my favorite apps, including what I consider the best video editing app and best to-do list app, I never thought I’d be very particular about which clock app I used. For as long as I can remember, I used whatever clock came with my phone. But over the past few years, I’ve become accustomed to Samsung Clock’s features. Since it’s only available on Samsung phones, I’ve tried to switch to another clock app that isn’t bound to a particular OEM. Despite t

Topics: app apps clock samsung snooze

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Show HN: Linux CLI tool to provide mutex locks for long running bash ops

news.ycombinator.com Unknown 2025-07-25 02:58:40

WaitLock WaitLock is a portable UNIX/POSIX command-line tool that provides mutex and semaphore functionality for shell scripts. It enables synchronized access to resources across multiple processes with automatic cleanup when processes die. Features Mutex Mode : Single lock holder (default) : Single lock holder (default) Semaphore Mode : Multiple concurrent lock holders : Multiple concurrent lock holders Automatic Cleanup : Locks released when process dies : Locks released when process die

Topics: list lock locks syslog waitlock

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Show HN: 0xDEAD//TYPE – A fast-paced typing shooter with retro vibes

news.ycombinator.com Unknown 2025-07-21 20:52:13

0xDEAD//TYPE Press the matching keys to destroy the blocks! Use W/S or Up/Down to move. Hit Spacebar for temporary invincibility Keep an eye out for the special ‘0’ block! Click anywhere to enable sound in the browser.

Topics: 0xdead block blocks browser click

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Show HN: 0xDEAD//Type – A Fast-Paced Typing Shooter with Retro Vibes

news.ycombinator.com Unknown 2025-07-22 01:52:13

0xDEAD//TYPE Press the matching keys to destroy the blocks! Use W/S or Up/Down to move. Hit Spacebar for temporary invincibility Keep an eye out for the special ‘0’ block! Click anywhere to enable sound in the browser.

Topics: 0xdead block blocks browser click

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I tested 30 smart locks, and these are the best

theverge.com Jennifer Pattison Tuohy 2025-07-25 23:15:00

is The Verge’s Smart Home reviewer. She has been testing connected home gadgets since 2013, having previously written for Wirecutter, Wired, Dwell, BBC, and US News. A smart lock is an easy solution to some common problems. Locked yourself out? Need to let a friend in to water the plants? Your latchkey kid lost their key? Hands are full, and it’s raining cats and dogs? A smart lock solves all of these problems and more. One of the best smart home upgrades you can make, a smart lock gives you r

Topics: door home lock matter smart

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NIST ion clock sets new record for most accurate clock

news.ycombinator.com Unknown 2025-07-27 12:56:47

(From left to right) Mason Marshall, David Hume, Willa Arthur-Dworschack and Daniel Rodriguez Castillo stand in front of the aluminum ion clock at NIST. With its recent improvements, the clock can pave the way for the campaign to redefine the second as well as explore new ideas in physics. Credit: R. Jacobson/NIST There’s a new record holder for the most accurate clock in the world. Researchers at the National Institute of Standards and Technology (NIST) have improved their atomic clock based o

Topics: aluminum clock ion ions nist

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I tested a palm recognition lock that doubles as a video doorbell - and it's stylish and smart

zdnet.com Maria Diaz 2025-07-28 03:43:31

ZDNET's key takeaways The Eufy FamiLock S3 Max is a new video smart lock available for $400. This smart lock also features a camera and doorbell button, and an indoor screen shows you who is at the door. I just wish the FamiLock S3 Max could unlock with human recognition using the Eufy HomeBase BionicMind, and the smart lock isn't convenient for some users, like those with a screen or storm door. $399.99 at Amazon That viral phrase, 'I don't have a favorite kid, but there is one we try really

Topics: door eufy familock lock smart

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Forget passwords often? Android may soon let you disable Failed Authentication Lock (APK teardown)

androidauthority.com Unknown 2025-07-28 15:09:36

Mishaal Rahman / Android Authority TL;DR Android 15 and newer devices include a Failed Authentication Lock feature that locks the device screen after detecting multiple failed login attempts in apps or settings. Unlike other theft protection features, this feature is enabled by default on all devices, and there’s currently no way for users to turn it off. Google may soon add a new option to the theft protection settings that will allow users to turn off Failed Authentication Lock. In additio

Topics: android authentication failed features lock

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NIST Ion Clock Sets New Record for Most Accurate Clock in the World

news.ycombinator.com Unknown 2025-07-28 18:56:47

(From left to right) Mason Marshall, David Hume, Willa Arthur-Dworschack and Daniel Rodriguez Castillo stand in front of the aluminum ion clock at NIST. With its recent improvements, the clock can pave the way for the campaign to redefine the second as well as explore new ideas in physics. Credit: R. Jacobson/NIST There’s a new record holder for the most accurate clock in the world. Researchers at the National Institute of Standards and Technology (NIST) have improved their atomic clock based o

Topics: aluminum clock ion ions nist

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Cloudflare Starts Blocking Pirate Sites for UK Users

news.ycombinator.com Unknown 2025-07-29 03:33:55

Cloudflare has become the first internet intermediary beyond local residential ISPs, to block access to pirate sites in the UK. Users attempting to access certain pirate sites are greeted with 'Error 451 - Unavailable for Legal Reasons'. In theory, ISP blocking should prevent UK users from even seeing this notice, but a combination of Cloudflare's blocking mechanism and choices made by some VPN users results in a piracy dead end. Internet service providers BT, Virgin Media, Sky, TalkTalk, EE, a

Topics: blocking cloudflare domains order uk

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Interlock ransomware adopts new FileFix attack to push malware

bleepingcomputer.com Unknown 2025-07-28 12:36:30

Hackers have adopted the new technique called 'FileFix' in Interlock ransomware attacks to drop a remote access trojan (RAT) on targeted systems. Interlock ransomware operations have increased over the past months as the threat actor started using the KongTuke web injector (aka 'LandUpdate808') to deliver payloads through compromised websites. This shift in modus operandi was observed by researchers at The DFIR Report and Proofpoint since May. Back then, visitors of compromised sites were prom

Topics: attack file filefix interlock rat

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Block leads rebound in fintech stocks as analysts downplay JPMorgan data fee risk

cnbc.com Mackenzie Sigalos 2025-07-29 23:10:03

Twitter CEO Jack Dorsey testifies during a remote video hearing held by subcommittees of the U.S. House of Representatives Energy and Commerce Committee on "Social Media's Role in Promoting Extremism and Misinformation" in Washington, U.S., March 25, 2021. Block jumped more than 5% on Monday, leading a rally in shares of fintech companies as analysts downplayed the threat of JPMorgan Chase's reported plan to charge data aggregators for access to customer financial information. The recovery fol

Topics: aggregators analysts block fintech monday

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Interlock ransomware adopts FileFix method to deliver malware

bleepingcomputer.com Unknown 2025-07-30 19:36:30

Hackers have adopted the new technique called 'FileFix' in Interlock ransomware attacks to drop a remote access trojan (RAT) on targeted systems. Interlock ransomware operations have increased over the past months as the threat actor started using the KongTuke web injector (aka 'LandUpdate808') to deliver payloads through compromised websites. This shift in modus operandi was observed by researchers at The DFIR Report and Proofpoint since May. Back then, visitors of compromised sites were prom

Topics: attack file filefix interlock rat

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I've tested dozens of smart locks, but I keep this one for its handy keycard feature

zdnet.com Maria Diaz 2025-07-31 03:05:28

ZDNET's key takeaways The Aqara U100 smart lock was originally priced at $230, but it is currently discounted to $135. This smart lock is the most versatile I've tested; it offers a variety of unlocking options, a user-friendly app, and easy integration with Apple Home. The Aqara U100 drains the battery quickly, and the app doesn't always alert users, resulting in reduced performance within four months of use. $189.99 at Amazon $179.99 at Best Buy more buying choices The Aqara U100 Smart Lock

Topics: app aqara lock smart u100

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Android’s lock screen widgets are getting a slick new background blur effect

androidauthority.com Unknown 2025-07-31 07:24:47

C. Scott Brown / Android Authority TL;DR A future Android update will give the lock screen widget page a blurred wallpaper background, aligning it with the Material 3 Expressive design language. This visual change, which replaces the current opaque colored background, was spotted in the new Android Canary build, making the UI more consistent. Although lock screen widgets are currently exclusive to tablets, Google has confirmed they will be coming to phones in the Android 16 QPR1 release. Mat

Topics: android beta lock qpr1 screen

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A Company Tried to Put Real Estate on the Blockchain and Now It's Facing a Legal Disaster

futurism.com Unknown 2025-07-31 23:00:45

Detroit is a city that's used to fighting. Once the third most populous city in the country, its citizens have long struggled against robber barons, anti-communist witch hunts, private sector looting, and racist housing laws. It hasn't had it easy, to say the least. Now, Outlier reports, the city is doing battle against a $93 million crypto real estate scheme. The city recently announced a massive lawsuit filed against RealToken, a cryptocurrency business that's snapping up hundreds of subsidi

Topics: blockchain city detroit property realtoken

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Google is working to bring album art to Now Playing on your Pixel’s lock screen (APK teardown)

androidauthority.com Unknown 2025-08-01 07:09:51

Ryan Haines / Android Authority TL;DR Now Playing detects songs your phone hears in its vicinity and can identify them on your lock screen. Tapping on the detected song name currently takes you to your Now Playing history. Google is working on a new interface where that tap would instead display album art on the lock screen. Sometimes, when it rains, it pours. As we analyze Android app updates for evidence of in-development changes, it can really feel like it’s dealer’s (or should we say, de

Topics: android google lock playing screen

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The Spell Is Still Working: Lee Pace Has Joined ‘Practical Magic 2’

gizmodo.com Cheryl Eddy 2025-08-01 11:45:00

Practical Magic 2 is already sky-high on our list of most-anticipated 2026 releases. The 1998 original follows the romantic misadventures of the witchy Owens sisters, played by Sandra Bullock and Nicole Kidman—and has since become a Halloween-adjacent cult classic. It maybe didn’t need a sequel, but Hollywood knows that fans have long wanted one. And now we know more of the names joining Bullock and Kidman this time around. First things first: bringing back Stockard Channing and Dianne Wiest—th

Topics: bullock kidman magic practical sequel

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The day someone created 184 billion Bitcoin (2020)

news.ycombinator.com Decrypt 2025-08-02 21:51:51

In brief In August 2010, someone exploited a flaw in Bitcoin’s code to create 184 billion Bitcoin. The bug was quickly corrected by Bitcoin’s anonymous creator, Satoshi Nakamoto. The person behind the "value overflow incident" exploit remains unknown. Decrypt’s Art, Fashion, and Entertainment Hub. Discover SCENE There will only ever be 21 million Bitcoin. We’re not too far off—around 18 and a half million Bitcoin are already in circulation. But on the 15th of August, 2010, that limit was des

Topics: 184 billion bitcoin blockchain bug

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What’s that song? Android Canary introduces Now Playing lock screen shortcut

androidauthority.com Unknown 2025-08-03 15:21:18

Joe Maring / Android Authority TL;DR Android lets users set up a pair of lock screen shortcuts for quick access to system tools. Today’s inaugural Android Canary release adds a new “Now Playing” shortcut to your available options. Locking your smartphone is an important step that practically everyone should take, helping to protect your device and keep your private information secure. And while the lock screen serves a critical role, it also makes getting access to anything on our phone that

Topics: android canary google lock screen

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Postgres LISTEN/NOTIFY does not scale

news.ycombinator.com Unknown 2025-07-31 13:05:06

At Recall.ai, we run an unusual workload. We record millions of hours of meetings every month. Each of these meetings generates a large amount of data we need to reliably capture and analyze. Some of that data is video, some of it is audio and some of it is structured data – transcription, events and metadata. The structured data gets written to our Postgres database by tens of thousands of simultaneous writers. Each of these writers is a “meeting bot”, which joins a video call and captures the

Topics: 03 database lock notify postgres

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Android’s first Canary build adds screen saver features made for phones with Qi2

androidauthority.com Unknown 2025-08-03 23:58:05

Mishaal Rahman / Android Authority TL;DR Google is improving Android’s screen saver with new activation and display options in the latest Android Canary build. New settings can trigger the screen saver only when upright and charging, with a further option to restrict it to wireless charging. A “low light mode” has also been added, which displays a dim clock in the dark regardless of your chosen screen saver. Earlier today, Google launched its Android Canary program, which replaces the previo

Topics: android charging clock saver screen

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I tested a palm recognition smart lock that doubles as a video doorbell - and it's on sale

zdnet.com Maria Diaz 2025-08-04 03:14:10

ZDNET's key takeaways The Eufy FamiLock S3 Max is a new video smart lock available for $400. This smart lock also features a camera and doorbell button, and an indoor screen shows you who is at the door. I just wish the FamiLock S3 Max could unlock with human recognition using the Eufy HomeBase BionicMind, and the smart lock isn't convenient for some users, like those with a screen or storm door. $339.99 at Amazon The Eufy FamiLock S3 Max is now on sale during Amazon Prime Day for $77 off, or

Topics: door eufy familock lock smart

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The SEC Is Crashing the Digital Stocks Party

gizmodo.com Luc Olinga 2025-08-04 23:20:28

For years, the promise of blockchain technology has captivated the financial world, hinting at a future where traditional assets are transformed into nimble, digital “tokens.” This vision, as the U.S. Securities and Exchange Commission (SEC) Commissioner Hester Peirce puts it, is “enchanting, but not magical.” She just sent a clear message to anyone hoping blockchain would free them from financial regulation: not so fast. Commissioner Peirce acknowledged the promise of tokenization, the process

Topics: assets blockchain peirce real tokenized

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Magic .env files built for sharing: Human-first, AI-friendly

news.ycombinator.com Unknown 2025-08-05 01:59:06

██▒ █▓ ▄▄▄ ██▀███ ██▓ ▒█████ ▄████▄ ██ ▄█▀ ▓██░ █▒▒████▄ ▓██ ▒ ██▒▓██▒ ▒██▒ ██▒▒██▀ ▀█ ██▄█▒ ▓██ █▒░▒██ ▀█▄ ▓██ ░▄█ ▒▒██░ ▒██░ ██▒▒██ ▄ ▓███▄░ ▒██ █░░░██▄▄▄▄██ ▒██▀▀█▄ ▒██░ ▒██ ██░▒██▄ ▄██▒▓██ █▄ ▒▀█░ ▓█ ▓██▒░██▓ ▒██▒░██████▒░ █████▒░▒ ████▀ ░▒██▒ █▄ ░ ▐░ ▒▒ ▓▒█░░ ▒▓ ░▒▓░░ ▒░▓ ░░ ▒░▒░▒░ ░ ░▒ ▒ ░▒ ▒▒ ▓▒ ░ ░░ ▒ ▒▒ ░ ░▒ ░ ▒░░ ░ ▒ ░ ░ ▒ ▒░ ░ ▒ ░ ░▒ ▒░ ░░ ░ ▒ ░░ ░ ░ ░ ░ ░ ░ ▒ ░ ░ ░░ ░ ░ ░ ░ ░ ░ ░ ░ ░ ░ ░ ░ ░ Magic .env files built for sharing: Human-first, AI-friendly .env.schema # API key with val

Topics: api env install secrets varlock

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Latest Tech News

How to write Rust in the Linux kernel: part 3

Block shares soar 10% on entry into S&P 500

HomeKit Weekly: ThorBolt X1 might be the best value home key lock with built-in Thread support

Bored with your phone’s lock screen? This brand lets you replace it with an eye-tracking 3D game

Stone blocks from the Lighthouse of Alexandria recovered from seafloor

I’ve tried many clock apps on Android, but none have this one excellent Samsung Clock feature

Show HN: Linux CLI tool to provide mutex locks for long running bash ops

Show HN: 0xDEAD//TYPE – A fast-paced typing shooter with retro vibes

Show HN: 0xDEAD//Type – A Fast-Paced Typing Shooter with Retro Vibes

I tested 30 smart locks, and these are the best

NIST ion clock sets new record for most accurate clock

I tested a palm recognition lock that doubles as a video doorbell - and it's stylish and smart

Forget passwords often? Android may soon let you disable Failed Authentication Lock (APK teardown)

NIST Ion Clock Sets New Record for Most Accurate Clock in the World

Cloudflare Starts Blocking Pirate Sites for UK Users

Interlock ransomware adopts new FileFix attack to push malware

Block leads rebound in fintech stocks as analysts downplay JPMorgan data fee risk

Interlock ransomware adopts FileFix method to deliver malware

I've tested dozens of smart locks, but I keep this one for its handy keycard feature

Android’s lock screen widgets are getting a slick new background blur effect

A Company Tried to Put Real Estate on the Blockchain and Now It's Facing a Legal Disaster

Google is working to bring album art to Now Playing on your Pixel’s lock screen (APK teardown)

The Spell Is Still Working: Lee Pace Has Joined ‘Practical Magic 2’

The day someone created 184 billion Bitcoin (2020)

What’s that song? Android Canary introduces Now Playing lock screen shortcut

Postgres LISTEN/NOTIFY does not scale

Android’s first Canary build adds screen saver features made for phones with Qi2

I tested a palm recognition smart lock that doubles as a video doorbell - and it's on sale

The SEC Is Crashing the Digital Stocks Party

Magic .env files built for sharing: Human-first, AI-friendly

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