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Nullable but not null

news.ycombinator.com Unknown 2025-12-31 11:22:02

When working on backend applications, especially those with evolving database schemas, it’s common to see a recurring pattern: A new field is added to a model. To avoid locking the table during the migration, the field is added as nullable. The application logic is updated to start filling in this field. A backfill job runs to populate the existing records. The field is left as nullable. People often forget the final step which is updating the schema to make the field non-nullable once the dat

Topics: field model nullable schema total_rows

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Back-to-School Sales Tax Holidays 2025: Tennessee's Tax-Free Weekend Kicks Off Today, and 9 More Start Next Week

cnet.com See Full Bio 2025-12-31 15:00:06

State sales tax holidays usually run for one weekend, though some states offer longer exemptions. Zooey Liao/CNET Back-to-school shopping season is in full swing, and if you're feeling the strain on your wallet, timing your purchases with a sales tax holiday can help you snag some extra savings. These tax-free shopping events typically center on back-to-school items, offering discounts on clothing, school supplies, laptops and athletic gear. This year, 17 states are participating in a tax-fre

Topics: free item items sales tax

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Efficient Computer's Electron E1 CPU – 100x more efficient than Arm?

news.ycombinator.com Dr. Ian Cutress 2025-12-31 18:30:44

We've been building general-purpose CPUs wrong for decades, apparently. That's the bold claim from Efficient Computer, a new startup stepping into the embedded market with their Electron E1 chip. For too long, our processors have been stuck in a control flow model, constantly shuffling data back and forth between caches, memory, and compute units – a process I think we can all agree that burns significant energy at every step. Efficient’s goal is to approach the problem by static scheduling and

Topics: data e1 efficient embedded power

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Reindeer Flee to Cities as the Arctic Bakes in Unprecedented Heatwave

gizmodo.com Natalia Mesa 2025-12-31 21:10:14

For two straight weeks, Finland has been roasting under record-high temperatures. The country is facing its most intense and persistent heatwave in its recorded history, which has brought beach weather to towns above the Arctic Circle. Friday marked the 14th consecutive day that at least one part of Finland reached a temperature above 86 degrees Fahrenheit (30 degrees Celsius), according to the Finnish Meteorological Institute. Local weather stations across the country have also reported record

Topics: celsius degrees finland heatwave temperatures

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Paul Giamatti Is Playing an Alien Bad Guy In ‘Starfleet Academy’

gizmodo.com James Whitbrook 2025-12-31 21:15:53

Ahead of Star Trek‘s usual blockbuster panel inside Hall H at San Diego Comic-Con, Entertainment Weekly has lifted the lid on the next new Trek show, Starfleet Academy—and with it, our first look at Paul Giamatti’s mysterious villain. In an extensive preview, Entertainment Weekly revealed a few more intriguing details about the show, which has largely remained hidden ahead of this weekend’s blowout appearance at Comic-Con. Set in the 32nd century after the events of Star Trek: Discovery—and at

Topics: academy giamatti star starfleet trek

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100X More Efficient Than ARM Processors – Electron E1

news.ycombinator.com Dr. Ian Cutress 2026-01-01 00:30:44

We've been building general-purpose CPUs wrong for decades, apparently. That's the bold claim from Efficient Computer, a new startup stepping into the embedded market with their Electron E1 chip. For too long, our processors have been stuck in a control flow model, constantly shuffling data back and forth between caches, memory, and compute units – a process I think we can all agree that burns significant energy at every step. Efficient’s goal is to approach the problem by static scheduling and

Topics: data e1 efficient embedded power

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nullable but not null

news.ycombinator.com Unknown 2026-01-01 05:22:02

When working on backend applications, especially those with evolving database schemas, it’s common to see a recurring pattern: A new field is added to a model. To avoid locking the table during the migration, the field is added as nullable. The application logic is updated to start filling in this field. A backfill job runs to populate the existing records. The field is left as nullable. People often forget the final step which is updating the schema to make the field non-nullable once the dat

Topics: field model nullable schema total_rows

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I tried Gemini on the Pixel Watch — here’s what it’s like

theverge.com Allison Johnson 2026-01-01 09:00:00

is a reviewer with over a decade of experience writing about consumer tech. She has a special interest in mobile photography and telecom. Previously, she worked at DPReview. I’m just getting acquainted with Gemini on the Pixel Watch I’m wearing when it tells me that there’s a kind of pastry called “nun’s farts.” This relationship is off to a good start. “Nun’s farts” was a totally appropriate response, by the way. I’d asked it for a list of pastries with silly names, prompted by a question fro

Topics: ai gemini just phone watch

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Samsung Galaxy Z Flip 7 review: More screen, more battery but something's missing

engadget.com Unknown 2026-01-01 16:00:22

Samsung’s annual foldable refresh includes a trio of devices this year. While the Z Fold 7 comes with a top-tier processor and cameras, the Z Flip 7 carries over many technical details from its predecessor. In fact, the most significant upgrade this year is a more expansive front display, or Flex Window, as the company prefers to call it. Samsung has also, somehow, added an even bigger battery to a slimmer foldable, which is technically impressive. However, the company made minimal software add

Topics: advertisement display flip samsung screen

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Going chain-free with the Priority Gemini gravel bike

arstechnica.com Unknown 2026-01-01 15:53:48

In combining a belt drive with a gravel bike, Priority Bicycles has put a smart idea into action with the Priority Gemini. The execution is mostly there, although the Gemini is perhaps best described as a fantastic commuter bike with a solid gravel upside—as long as the road isn't too rough. The Priority Gemini comes in both aluminum and titanium frames. I tested the $3,499 aluminum model; the titanium version retails for $5,499. The aluminum version weighs in at 24 lb (10.9 kg), about a half-p

Topics: belt bike drive gemini smart

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Galaxy Watch 8 review: Samsung’s best smartwatch in years

engadget.com Unknown 2026-01-01 21:00:36

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . I’m too tired to write this review. Last week, I penned a work-in-progress version because I hadn’t yet spent enough time to fully explore the new features Samsung packed into the Galaxy Watch 8 . One of those features is the new AI-powered running guidance, which I followed. I have r

Topics: galaxy gemini like samsung watch

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Ember’s Travel Mug 2 with Find My is $30 off right now

engadget.com Unknown 2026-01-01 21:51:00

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . The annoying thing about coffee is that its ideal temperature is fleeting. Get caught up in a particularly lively debate in your morning meeting and by the time you return to your cup of joe, it’s cooled right down. That’s where Ember’s smart heated mugs come in, and right now one of i

Topics: ember mug right tech temperature

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When photography was born, fascination, obsession, and danger followed

news.ycombinator.com Michael Patrick Brady 2025-12-31 02:51:04

The prevalence of photography in contemporary life has inspired a lot of griping about the supposedly unprecedented narcissism of our social-media-driven culture. We are continually encouraged to live in the moment instead of through our cameras, scolded for our pursuit of a flattering selfie or an aesthetic backdrop that will draw eyes — and engagement — to our photos and ourselves. But this obsession is nothing new. From nearly the first moment it became possible to capture an image from life

Topics: advertisement burgess image photography time

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Going chain-free with the Priority Apollo gravel bike

arstechnica.com Unknown 2026-01-01 21:53:48

In combining a belt drive with a gravel bike, Priority Bicycles has put a smart idea into action with the Apollo Gravel. The execution is mostly there, although the Apollo is perhaps best described as a fantastic commuter bike with a solid gravel upside—as long as the road isn't too rough. The Apollo Gravel comes in both aluminum and titanium frames. I tested the $1,999 aluminum model; the titanium version retails for $3,999. The aluminum version weighs in at 24 lb (10.9 kg), about a half-pound

Topics: apollo bangeman belt eric gravel

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I tried Gemini on the Pixel Watch. Here’s what it’s like

theverge.com Allison Johnson 2026-01-01 21:00:00

is a reviewer with over a decade of experience writing about consumer tech. She has a special interest in mobile photography and telecom. Previously, she worked at DPReview. I’m just getting acquainted with Gemini on the Pixel Watch I’m wearing when it tells me that there’s a kind of pastry called “nun’s farts.” This relationship is off to a good start. “Nun’s farts” was a totally appropriate response, by the way. I’d asked it for a list of pastries with silly names, prompted by a question fro

Topics: ai gemini just phone watch

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Porsche 911 GTS review: The first hybrid 911 is better with a battery

engadget.com Unknown 2026-01-02 02:00:38

When Porsche first unveiled the new 911 GTS, it's safe to say that there weren't many people on planet Earth pining for a hybrid 911. The idea of one of the world's most iconic sports cars taking a cue from the humble Toyota Prius is a concept that's a little hard for the average auto enthusiast to get their head around. But they should try, because the technology that Porsche has deployed in the new 911 GTS, Porsche's first hybrid sports car, is properly impressive. This is a hybrid system tha

Topics: 911 advertisement car gts porsche

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13 tech trends to watch now, according to McKinsey (and no, it's not all AI)

zdnet.com Webb Wright 2026-01-02 02:23:00

MF3d / Getty Images When we hear the word "technology," most of us automatically think of hardware; the physical devices that have become such a conspicuously present part of many of our day-to-day lives. But technology is a much more expansive phenomenon, encompassing not only all the various tools and gadgets we can clearly see, but also a vast and mostly invisible digital infrastructure of software and code upon which our modern world is based. When trying to understand technological change

Topics: ai example like systems technologies

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Lawmakers writing NASA’s budget want a cheaper upper stage for the SLS rocket

arstechnica.com Unknown 2026-01-02 12:30:35

Not surprisingly, Congress is pushing back against the Trump administration's proposal to cancel the Space Launch System, the behemoth rocket NASA has developed to propel astronauts back to the Moon. Spending bills making their way through both houses of Congress reject the White House's plan to wind down the SLS rocket after two more launches, but the text of a draft budget recently released by the House Appropriations Committee suggests an openness to making some major changes to the program.

Topics: artemis house moon nasa sls

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Google spoofed via DKIM replay attack: A technical breakdown

news.ycombinator.com Gerasim Hovhannisyan 2026-01-02 11:28:40

This morning started with a call from a friend – clearly shaken. He had just received an alarming email that looked strikingly legitimate. Unsure whether it was safe or a scam, he reached out to me for help verifying its authenticity. What followed was a deep dive into the message to determine whether it was a genuine communication or a cleverly crafted phishing attempt. The email was convincing enough to create real concern, and that’s what makes this story worth sharing. This was the email:

Topics: attacker com dkim email google

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‘Peacemaker’ Came to Comic-Con to Tease the End of Its Own Universe

gizmodo.com Sabina Graves 2026-01-02 21:45:12

The most in-your-face explanation for what’s going on with Peacemaker in the new DCU can be found outside of San Diego Comic-Con. Simply put—as soon as you walk in past the HBO Max activation marquee for the Peacemaker “Peacefest” in the Gaslamp District, you see a sign that reads, “Relax, it’s a state of emergency; you’re fucked’, dude.” io9 was invited to scope out the space, which allowed for some rocking fun as you walk in through a Quantum Portal into the “altered dimension” of the Peacem

Topics: dimension going peacefest peacemaker superman

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Android’s new ‘Expanded’ dark mode darkens apps without a dark theme — but there’s a catch

androidauthority.com Unknown 2026-01-03 02:11:48

Megan Ellis / Android Authority TL;DR For accessibility, Android will soon let you enable a dark theme in apps that don’t have one. A new “Expanded” dark mode option forces apps to go dark, but it may cause visual issues. This feature is live in the second Android Canary build, but its stable release date is unknown. If you tell people that you use light mode on your phone, some people will look at you like you’re crazy. That’s because many people prefer dark mode UIs because they’re general

Topics: android apps dark mode theme

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BlackSuit ransomware leak sites seized in Operation Checkmate

bleepingcomputer.com Unknown 2026-01-03 02:34:13

Law enforcement has seized the dark web leak sites of the BlackSuit ransomware operation, which has targeted and breached the networks of hundreds of organizations worldwide over the past several years. The U.S. Department of Justice confirmed the takedown in an email earlier today, saying the authorities involved in the action executed a court-authorized seizure of the BlackSuit domains. Earlier today, the websites on the BlackSuit .onion domains were replaced with seizure banners announcing

Topics: blacksuit enforcement gang ransomware royal

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Psilocybin treatment extends cellular lifespan, improves survival of aged mice

news.ycombinator.com Unknown 2026-01-03 00:29:58

As revenues from the anti-aging market — riddled with hope and thousands of supplements — surged past $500 million last year, Emory University researchers identified a compound that actively delays aging in cells and organisms. A newly published study in Nature Partner Journals’ Aging demonstrates that psilocin, a byproduct of consuming psilocybin, the active ingredient in psychedelic mushrooms, extended the cellular lifespan of human skin and lung cells by more than 50%. In parallel, research

Topics: aging emory life psilocybin study

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Superfunctions: A universal solution against sync/async fragmentation in Python

news.ycombinator.com Unknown 2025-12-29 23:39:48

This library is designed to solve one of the most important problems in python programming - dividing all written code into 2 camps: sync and async. We get rid of code duplication by using templates. Table of contents Quick start Install it: pip install transfunctions And use: from asyncio import run from transfunctions import ( transfunction , sync_context , async_context , generator_context , ) @ transfunction def template (): print ( 'so, ' , end = '' ) with sync_context : print ( "it's

Topics: code function functions print template

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American sentenced for helping North Koreans get jobs at U.S. firms

news.ycombinator.com Amanda Gerut 2026-01-03 00:28:58

Christina Chapman, 50, an Arizona woman who pleaded guilty to charges connected to the global North Korean IT workers scheme, has been sentenced to 8.5 years in federal prison. U.S. District Court Judge Randolph D. Moss also ordered Chapman to forfeit proceeds of $284,000 that was to be paid to the North Koreans. She was also ordered to pay a judgement of $176,850—the same amount she charged North Koreans for her help in the scheme that authorities said was one of the largest IT worker conspirac

Topics: american korean north said scheme

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Today's NYT Strands Hints, Answers and Help for July 25 #509

cnet.com See Full Bio 2026-01-03 00:00:23

Looking for the most recent Strands answer? Click here for our daily Strands hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections and Connections: Sports Edition puzzles. Today's NYT Strands puzzle is a mix of easy words to find and unscramble and one whopping long one. But if you know the theme, that word is easy to decipher. If you need hints and answers, read on. I go into depth about the rules for Strands in this story. If you're looking

Topics: puzzle strands theme today words

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Two major AI coding tools wiped out user data after making cascading mistakes

arstechnica.com Unknown 2026-01-03 02:01:28

New types of AI coding assistants promise to let anyone build software by typing commands in plain English. But when these tools generate incorrect internal representations of what's happening on your computer, the results can be catastrophic. Two recent incidents involving AI coding assistants put a spotlight on risks in the emerging field of "vibe coding"—using natural language to generate and execute code through AI models without paying close attention to how the code works under the hood.

Topics: ai cli coding commands gemini

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New Koske Linux malware hides in cute panda images

bleepingcomputer.com Unknown 2026-01-03 06:54:10

A new Linux malware named Koske may have been developed with artificial intelligence and is using seemingly benign JPEG images of panda bears to deploy malware directly into system memory. Researchers from cybersecurity company AquaSec analyzed Koske and described it as "a sophhisticated Linux threat." Based on the observed adaptive behavior, the researchers believe that the malware was developed using large language models (LLMs) or automation frameworks. Koske’s purpose is to deploy CPU and

Topics: aquasec koske malware memory shell

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One of the Rarest Pokemon in History Is Coming to Pokemon TCG Pocket

cnet.com See Full Bio 2026-01-03 04:53:12

No honest person can resist the attraction of Pokemon Gold. That's why Pokemon TCG Pocket's Wisdom of Sea and Sky expansion set is going all in on generation two when it arrives on July 29. This set will be one of the game's larger offerings, featuring more than 200 cards. I'm sure that has the most ravenous collectors breathing a sigh of relief, since the past two expansions -- Eevee Grove and Extradimensional Crisis -- have both had smaller complimentary card lists to build on Celestial Guard

Topics: generation pokemon set trade trading

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Phishers Target Aviation Execs to Scam Customers

krebsonsecurity.com Unknown 2026-01-03 15:57:06

KrebsOnSecurity recently heard from a reader whose boss’s email account got phished and was used to trick one of the company’s customers into sending a large payment to scammers. An investigation into the attacker’s infrastructure points to a long-running Nigerian cybercrime ring that is actively targeting established companies in the transportation and aviation industries. A reader who works in the transportation industry sent a tip about a recent successful phishing campaign that tricked an e

Topics: address com domain domains email

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Latest Tech News

Nullable but not null

Back-to-School Sales Tax Holidays 2025: Tennessee's Tax-Free Weekend Kicks Off Today, and 9 More Start Next Week

Efficient Computer's Electron E1 CPU – 100x more efficient than Arm?

Reindeer Flee to Cities as the Arctic Bakes in Unprecedented Heatwave

Paul Giamatti Is Playing an Alien Bad Guy In ‘Starfleet Academy’

100X More Efficient Than ARM Processors – Electron E1

nullable but not null

I tried Gemini on the Pixel Watch — here’s what it’s like

Samsung Galaxy Z Flip 7 review: More screen, more battery but something's missing

Going chain-free with the Priority Gemini gravel bike

Galaxy Watch 8 review: Samsung’s best smartwatch in years

Ember’s Travel Mug 2 with Find My is $30 off right now

When photography was born, fascination, obsession, and danger followed

Going chain-free with the Priority Apollo gravel bike

I tried Gemini on the Pixel Watch. Here’s what it’s like

Porsche 911 GTS review: The first hybrid 911 is better with a battery

13 tech trends to watch now, according to McKinsey (and no, it's not all AI)

Lawmakers writing NASA’s budget want a cheaper upper stage for the SLS rocket

Google spoofed via DKIM replay attack: A technical breakdown

‘Peacemaker’ Came to Comic-Con to Tease the End of Its Own Universe

Android’s new ‘Expanded’ dark mode darkens apps without a dark theme — but there’s a catch

BlackSuit ransomware leak sites seized in Operation Checkmate

Psilocybin treatment extends cellular lifespan, improves survival of aged mice

Superfunctions: A universal solution against sync/async fragmentation in Python

American sentenced for helping North Koreans get jobs at U.S. firms

Today's NYT Strands Hints, Answers and Help for July 25 #509

Two major AI coding tools wiped out user data after making cascading mistakes

New Koske Linux malware hides in cute panda images

One of the Rarest Pokemon in History Is Coming to Pokemon TCG Pocket

Phishers Target Aviation Execs to Scam Customers

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