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How Container Filesystem Works: Building a Docker-Like Container from Scratch

One of the superpowers of containers is their isolated filesystem view - from inside a container it can look like a full Linux distro, often different from the host. Run docker run nginx , and Nginx lands in its familiar Debian userspace no matter what Linux flavor your host runs. But how is that illusion built? In this post, we'll assemble a tiny but realistic, Docker-like container using only stock Linux tools: unshare , mount , and pivot_root . No runtime magic and (almost) no cut corners. A

Don't Miss This Claustrophobic Sci-Fi Nightmare Streaming Free on Tubi

There's something about sci-fi horror that hits all the buttons for me. Derelict spaceships the size of cities, creatures engineered by science or nature to be perfect predators and the claustrophobia of space all manage to get me excited every time. The Alien franchise made me fall in love with this sub-genre, along with gems like Dark City and Event Horizon. One of my lesser-known favorites is Pandorum. Released in 2009, it's a claustrophobic trip into space where a mechanic wakes up on a col

Xbox Game Pass Is Looking Like a Great Deal for Fall With These Games

The monumental Call of Duty franchise has published a new game every year for over 20 years, and this year is no different with the upcoming release of Black Ops 7. And Xbox Game Pass subscribers can play the Black Ops 7 early access open beta starting on Oct. 2 at no additional cost. Xbox Game Pass Ultimate, a CNET Editors' Choice award pick, offers hundreds of games you can play on your Xbox Series X, Xbox Series S, Xbox One, Amazon Fire TV, smart TV and PC or mobile device for $20 a month. A

Wyze’s new palm-scanning door lock has a second, backup battery

is a senior reporter who’s been covering and reviewing the latest gadgets and tech since 2006, but has loved all things electronic since he was a kid. Wyze has announced its first smart door lock that can be opened by simply hovering your open hand over it. The Wyze Palm Lock is launching today for $129.98 making it more affordable than similar palm-scanning smart locks including the $359.99 Philips Smart Deadbolt that launched last year. But your palm isn’t the only way to unlock it. If it’s t

Waymo gets green light for airport service in San Francisco

is transportation editor with 10+ years of experience who covers EVs, public transportation, and aviation. His work has appeared in The New York Daily News and City & State. Posts from this author will be added to your daily email digest and your homepage feed. Waymo is now permitted to test its robotaxi service at San Francisco International Airport (SFO), a big win for the company as it seeks to expand its service area and tackle more popular, revenue-generating destinations. After years of

Gemini overtakes ChatGPT on App Store, as its Nano Banana AI model drives downloads up 45%

Gemini’s mobile adoption has been soaring since the August launch of its Nano Banana image editor model, which has received positive reviews, particularly from users who say they can now more easily perform complex edits and create realistic images. The app has climbed to the top of global app stores’ charts and has seen a 45% month-over-month increase in downloads in the month of September so far, according to new data provided by app intelligence firm Appfigures. Though the month is only half

Google rolls out new Windows desktop app with Spotlight-like search tool

Google announced on Tuesday that it’s launching a new experimental app for Windows that’s designed to help people find what they need faster. The app will allow people to use an Alt + Space shortcut to instantly search for information from their computer files, installed apps, Google Drive files, and the web. The search bar works similar to Mac’s Spotlight search, which lets users quickly find anything on their device and on the web. The new app is available via Search Labs, Google’s experimen

Cybersecurity provider Netskope boosts IPO range as it tests tech hotstreak

Sanjay Beri, chief executive officer and founder of Netskope Inc., listens during a Bloomberg West television interview in San Francisco, California. Netskope is targeting a $7.3 billion valuation in its upcoming initial public offering, after lifting its planned price range. The cybersecurity company said it plans to sell 47.8 million shares at between $17 and $19 apiece. The deal would raise as much as $908 million at the top end. That's up from a previous range of $15 to $17 a share the co

iOS 26 RC users have a new update available for download

iOS 26 shipped to all users yesterday, but it came with a build number that was different than the RC previously available to beta testers. Now, one day later, Apple has released that public version for beta testers too. iOS 26.0 public build now available for beta testers too If you’ve been running the iOS 26 beta before now, Apple has a new update available for you today. However, it’s not the iOS 26.1 release many have been excitedly anticipating. Instead, Apple has just shipped an update

Topics: 26 apple beta ios testers

Word numbers: Billion approaches (2008)

Word numbers, Part 1: Billion approaches ITA Software recruits computer scientists using puzzles such as the following. If the integers from 1 to 999,999,999 are written as words, sorted alphabetically, and concatenated, what is the 51 billionth letter? In a series of posts, Dylan Thurston and I will solve this problem step by step, introducing concepts such as monoids and differentiation along the way. We will use the programming language Haskell: every post will be a literate program that y

Writing an operating system kernel from scratch – RISC-V/OpenSBI/Zig

Posted on: September 13, 2025 | at 09:30 AM Follow @popovicu94 I recently implemented a minimal proof of concept time-sharing operating system kernel on RISC-V. In this post, I’ll share the details of how this prototype works. The target audience is anyone looking to understand low-level system software, drivers, system calls, etc., and I hope this will be especially useful to students of system software and computer architecture. This is a redo of an exercise I did for my undergraduate cours

Robert Redford has died

From time to time, people with similar political priorities encouraged him to run for office. He brushed such chatter aside, having become disillusioned with government in the late 1970s, when he was elected commissioner of the Provo Canyon sewer district. (He had sought the office in an effort to protect the Provo Canyon area near his home from development and pollution. But he quickly encountered bureaucracy, which reinforced his belief that independent activism and storytelling through film w

Here’s How to Deflect a Dangerous Asteroid Without It Totally Backfiring

In September 2022, NASA deliberately crashed a spacecraft into an asteroid, successfully altering the space rock’s trajectory. The orbital shove demonstrated an asteroid deflection technique that could come in handy if a massive rock were headed in Earth’s direction. As it turns out, however, deflecting a potentially threatening asteroid is only half the battle. Striking an asteroid for deflection purposes could send it back on a collision course with Earth, merely delaying the planet-shatterin

OpenAI Is Building a Teen-Friendly Version of ChatGPT

OpenAI announced today that it's developing a "different ChatGPT experience" tailored for teenagers, a move that underscores growing concerns about the impact of AI chatbots on young people's mental health. The new teen mode is part of a broader safety push by the company in the wake of a lawsuit by a family who alleged ChatGPT's lack of protections contributed to the death by suicide of their teenage son. The changes include age-prediction technology to keep kids under 18 out of the standard v

Can-Am Origin electric motorcycle review: Good for a fun time, not a long time

It wasn't until your average electric car started managing 200 miles on a charge that the buying populace started getting over their range anxiety. That means electric motorcycles, with ranges often measured in double digits, remain a bit of a tough sell for mass-market buyers. The focus, then, seems to be "for a good time, not a long time," and that's very much the case of the Can-Am Origin. This $14,499 battery-powered dual-sport is a fun, flickable, go-anywhere two-wheeled smile factory that

The PS5 update that adds DualSense multi-device pairing rolls out soon

Starting on Wednesday, it'll be much easier to switch between devices with your PlayStation controller. That's when the PS5 update Sony promised in July begins rolling out. Jumping between your console and, say, Windows will be as simple as pressing a button combo. Up to this point, you've had to unpair and repair your DualSense controller each time. After installing tomorrow's system update, it will only take a few steps to set up multi-device switching. With your DualSense controller powered

Amazon Prime Day is October 7-8: Everything you need to know about October Prime Day

It's September, which means fall seasonal sales and early holiday savings are on the horizon. Labor Day is in the rearview, but plenty of the most significant sales of the year will be creeping up soon, and Amazon's October Prime Day event (formally called Prime Big Deal Days) is one you can't miss. The retailer recently confirmed that the sale will return this year on Tuesday, Oct. 7, and Wednesday, Oct. 8. Also: 3 money-saving tricks I use every time I shop online - and you should too Amazon

Mother of All Demos (1968)

SUMMARY Douglas Engelbart's 1968 "Mother of All Demos" at SRI showcased interactive computing innovations, including the mouse debut, hypertext, real-time editing, and collaborative tools, envisioning augmented human intellect. STATEMENTS The Augmented Human Intellect Research Center at Stanford Research Institute has pursued computer systems that enhance intellectual work by providing instant responsiveness to user actions throughout the day. The demo features a computer mouse that controls

Plugin System

With several lines of code, you can implement the exact feature tailored to your needs. Furthermore, with the Official User Scripts plugin, you can just copy-and-paste code snippets into IINA without writing plugin packages.

‘Superman’ Takes Flight on HBO Max This Week

Soon, there’ll be no need to leave the Fortress of Solitude or even your couch to stream James Gunn‘s Superman: it’s arriving on HBO Max this Friday, September 19. It arrives on HBO linear the next day, September 20, starting at 8 p.m. ET. The DC Studios blockbuster will also be available in an American Sign Language version, an HBO Max exclusive. Comic-book movie fans will get an enhanced experience on the HBO Max platform to celebrate Superman‘s arrival. Look out for a Daily Planet “homepage

Topics: gunn hbo lex max superman

Traveling to Europe? You Need to Know About These New Identity Checks and Fees

Travelers to Europe will soon have their fingerprints and facial data captured and verified for entering and exiting EU countries, signaling the beginning of the end for passport stamping. The new system, which the EU is calling the EES (Entry/Exit System) will kick off on Oct. 12 and will be gradually phased in across checkpoints through April 9, 2026. By April 10 of next year, the EU hopes to do away with physical passport stamping in favor of a digital biometric system that it says will make

A new report finds China’s space program will soon equal that of the US

As Jonathan Roll neared completion of a master's degree in science and technology policy at Arizona State University three years ago, he did some research into recent developments by China's ascendant space program. He came away impressed by the country's growing ambitions. Now a full-time research analyst at the university, Roll was recently asked to take a deeper dive into Chinese space plans. "I thought I had a pretty good read on this when I was finishing grad school," Roll told Ars. "That

Fourth Power’s sci-fi thermal batteries could be cheaper than pricey natural gas power plants

Fourth Power’s take on long-duration energy storage sounds like something out of a James Bond film. The thermal batteries come complete with superheated liquid tin and argon-filled hermetically sealed chambers. The company’s goal, though, is far more prosaic — to store electricity cheap enough to make solar and wind an obvious choice for 24/7 power. Here’s how the technology works: To store energy, electricity from the grid heats blocks of carbon inside insulated chambers filled with argon gas.

Samsung patches zero-day security flaw used to hack into its customers’ phones

Samsung says it has fixed a zero-day security vulnerability that is being used to hack into its customers’ phones. The phone maker said the security flaw, discovered in a software library for displaying images on Samsung devices, allows hackers to remotely plant malicious code on Samsung devices running Android 13 through the most recent version, Android 16. Samsung’s advisory said security teams from Meta and WhatsApp privately notified the company on August 13 and was told that “an exploit f

Waymo approved to start testing autonomous vehicles at San Francisco International Airport

Waymo has been granted a permit to start testing its autonomous vehicles at San Francisco International Airport, ahead of the launch of a commercial service. The San Francisco mayor’s office announced Tuesday that the airport, known as SFO, and Waymo have signed a “Testing and Operations Pilot Permit” after years of back-and-forth negotiations. The deal with SFO comes just two weeks after Waymo was cleared to start testing at nearby San Jose Mineta International airport. SFO is not the first a

Samsung details One UI 8 release schedule for dozens of devices

Joe Maring / Android Authority TL;DR Samsung has officially shared the One UI 8 availability schedule. The Galaxy S24, Z Flip 6 and Fold 6, A56 5G, and A36 5G will get the stable update this month. All other eligible devices are scheduled for October. Yesterday, Samsung began rolling out the stable version of One UI 8 to Galaxy S25 devices. Along with that rollout, the company published a newsroom post announcing which devices will be eligible for the update. At the same time, its Korean com

iOS 26.1 beta is coming: When to expect the next update

iOS 26 is now available for all users, but beta testers who have had the update for months may now wonder when Apple plans to debut the first iOS 26.1 beta. Here’s when to expect the next beta update. Apple’s history indicates iOS 26.1 beta will arrive this week or next iOS 26 released on Monday, September 15. Here’s how that compares to prior years: iOS 18: Monday, September 16 iOS 17: Monday, September 18 iOS 16: Monday, September 12 iOS 15: Monday, September 20 As you can see, there’s

YouTube just announced a bunch of AI tools for creators

YouTube held an event today aimed at creators and announced all kinds of new tools, many of which include AI in one way or another. Let's get into some of the more interesting drops. There's an AI tool that can automatically edit raw footage into a "compelling first draft." It'll create a video complete with "music, transitions and voiceover." It's being tested right now and should roll out in the coming weeks. The platform is also launching software that will automatically create voiceovers i

Some Pixel 7 users say their batteries are swelling - what Google is doing about it

CNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Pixel 7 and Pixel 7 Pro users are seeing a rise in battery issues. The swelling is causing some phones to separate. Google is offering several remedies, including a replacement. Yet another Pixel phone is experiencing battery issues. Just a few months after the Pixel 7a had such widespread battery problems that Google offered to repair them for free, and the Pixel 6a saw overheating problems so severe at leas

‘Fantastic Four’ Takes Its First Steps Home Next Week

If you didn’t see Fantastic Four: First Steps in theaters or just want to see it again, you can on digital starting September 23. The latest Marvel Studios will arrive on all the usual platforms, followed by a physical launch on October 14. Along with the standard deleted scenes, special features include a gag reel, commentary track with director Matt Shakman and production designer Kasra Farahani, and three featurettes centering the heroes, their comic book villains, and the film’s retrofuturi