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Nextdoor redesigns app with AI recommendations, local news, and real-time emergency alerts

techcrunch.com Aisha Malik 2026-02-16 10:00:00

Neighborhood social app Nextdoor is launching a redesigned version of its service that it’s calling the “new Nextdoor.” The app is adding local news, real-time alerts, and an AI-powered feature called “Faves” that’s designed for discovering local businesses and spots. Nextdoor has also updated its overall design to look more contemporary. Launched 15 years ago, Nextdoor has long served as a popular platform for neighborhood conversations, helping users connect over things like recommendations f

Topics: alerts local nextdoor platform tolia

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C++ Coroutines Advanced: Converting std:future to asio:awaitable

news.ycombinator.com Lei Xia 2026-02-16 12:50:12

July 15, 2025 · 696 words · 4 min In modern C++ development, coroutines have brought revolutionary changes to asynchronous programming. However, when using boost::asio or standalone asio, we often encounter scenarios where we need to convert traditional std::future<T> to asio::awaitable<T> . This article will detail an efficient, thread-safe conversion method. Problem Background When using asio coroutines, we often encounter scenarios like: Need to call third-party libraries that return std:

Topics: asio future handler result std

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Jank is C++

news.ycombinator.com Unknown 2026-02-17 12:22:01

jank is C++ If you've wondered how much a solo dev can build for seamless C++ interop on a quarter, you're about to find out. In April, jank was unable to reach into C++ at all. Toward the end of this post, I'll show some real world examples of what works today. Before that, though, I want to say thank you for the sponsorship this quarter, not only by all of my individual Github sponsors, but also by Clojurists Together. I also want to say thank you to Vassil Vassilev and Lang Hames for buildin

Topics: cpp ftxui jank std type

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Show HN: BinaryRPC – Lightweight WebSocket-based RPC framework in modern C++

news.ycombinator.com Unknown 2026-02-18 22:32:12

BinaryRPC 🧭 Motivation While working at my company, I had previously developed a WebSocket server prototype in Java. However, over time, we started to experience performance issues. This led me to turn to C++, a language that offers more speed and low-level system control. Through my research, I discovered that uWebSockets was one of the best options in terms of performance, so I began developing with this library. However, since uWebSockets is a very "core" library, I had to handle many deta

Topics: app binaryrpc session std string

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Hot deal: Blink Outdoor 4 smart cams down from $130 to just $52 today

androidauthority.com Unknown 2026-02-19 21:30:20

Ready to upgrade your home security system with a budget-friendly option? The Blink Outdoor 4 is worth considering, especially when it’s better than half price. With Prime Day powering into the final stretch, you can snag the two-camera pack for just $51.99 — a 60% reduction from its usual price of $129.99. Blink Outdoor 4 for $51.99 (60% off) The Blink Outdoor 4 is an ideal smart home addition with its 1080p HD live view and infrared night vision features, providing clear footage no matter the

Topics: 99 blink day outdoor prime

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jank is C++

news.ycombinator.com Unknown 2026-02-20 00:22:01

jank is C++ If you've wondered how much a solo dev can build for seamless C++ interop on a quarter, you're about to find out. In April, jank was unable to reach into C++ at all. Toward the end of this post, I'll show some real world examples of what works today. Before that, though, I want to say thank you for the sponsorship this quarter, not only by all of my individual Github sponsors, but also by Clojurists Together. I also want to say thank you to Vassil Vassilev and Lang Hames for buildin

Topics: cpp ftxui jank std type

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jank Is C++

news.ycombinator.com Unknown 2026-02-20 06:22:01

jank is C++ If you've wondered how much a solo dev can build for seamless C++ interop on a quarter, you're about to find out. In April, jank was unable to reach into C++ at all. Toward the end of this post, I'll show some real world examples of what works today. Before that, though, I want to say thank you for the sponsorship this quarter, not only by all of my individual Github sponsors, but also by Clojurists Together. I also want to say thank you to Vassil Vassilev and Lang Hames for buildin

Topics: cpp ftxui jank std type

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Finally, a battery floodlight camera that's perfect for my dark yard (and it's 54% off)

zdnet.com Maria Diaz 2026-02-24 11:00:35

ZDNET's key takeaways The Blink Outdoor 4 Floodlight Camera is a practical, battery-powered solution for darker areas around your house that lack wiring and outlets. The AA batteries allow the floodlights to beam at 700 nits of brightness, which is not the most powerful on the market but good enough to see your surroundings. The Blink app is feature-rich, with plenty of camera settings to customize for the best surveillance, but you'll need a paid subscription to unlock the best features. View

Topics: blink camera floodlight outdoor plan

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Amazon Is Going Nuts, Gives You 2 Free Blink Cameras When You Buy One During Prime Day

gizmodo.com Gizmodo Deals 2026-03-02 02:35:24

Amazon is pulling out all the stops for Prime Day, especially when it comes to its own smart home brands. Blink is known for its easy-to-use security cameras and it is front and center with the most aggressive deal we’ve ever seen. Right now, Amazon is offering a bundle that includes three Blink Outdoor 4 cameras and a Blink Mini for an incredible 66% off: The entire bundle is only $99, down from the regular $289. To put this into perspective, you’re getting the entire bundle for what you would

Topics: amazon blink bundle cameras outdoor

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Features of D That I Love

news.ycombinator.com Unknown 2026-03-10 01:45:28

10 features of D that I love This is a beginner-friendly post exploring some of my favourite parts of the D programming language, ranging from smaller quality of life stuff, to more major features. I won’t talk much about D’s metaprogramming in this post as that topic basically requires its own dedicated feature list, but I still want to mention that D’s metaprogramming is world class - allowing a level of flexibility & modelling power that few statically compiled languages are able to rival.

Topics: import int lower std string

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Why I'm ditching Bluetooth speakers in favor of this outdoor wired system - and don't regret it

zdnet.com Christian De Looper 2026-03-11 14:21:00

ZDNET's key takeaways The Polk Audio Atrium 5 speakers are available for $325 a pair, offering a sleek and weatherproof design. These speakers have a crisp, detailed, and surprisingly deep sound profile. You'll need an amplifier for these speakers, making them less convenient than using a Bluetooth speaker. $325 at B&H Photo-Video While plenty of folks use portable Bluetooth speakers for their outdoor listening needs, they're not the most practical choice if you're setting up an outdoor envir

Topics: atrium audio outdoor speaker speakers

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Math.Pow(-1, 2) == -1 in Windows 11 Insider build

news.ycombinator.com Unknown 2026-03-11 17:04:45

Description The following is copied with extra bits from https://aka.ms/AAwwjwl (Feedback Hub) to raise awareness of this issue: Hello, I'm a contributor to osu! (https://github.com/ppy/osu). A user reported a really weird problem with our game that only happens in the current version of Canary (27881.1000) in ppy/osu#33948. I've narrowed it down to ppy/osu#33948 (comment), which is Math.Pow(-1, 2) returning -1 instead of 1 for some odd reason. Used VSCode for C# installation of .NET 8 (what

Topics: https osu pow ppy std

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These premium outdoor speakers made me reconsider switching to Bluetooth audio - here's why

zdnet.com Christian De Looper 2026-03-16 13:00:19

ZDNET's key takeaways The Polk Audio Atrium 5 speakers are available for $325 a pair, offering a sleek and weatherproof design. These speakers have a crisp, detailed, and surprisingly deep sound profile. You'll need an amplifier for these speakers, making them less convenient than using a Bluetooth speaker. $325 at B&H Photo-Video While plenty of folks use portable Bluetooth speakers for their outdoor listening needs, they're not the most practical choice if you're setting up an outdoor envir

Topics: atrium audio outdoor speaker speakers

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C++ Seeding Surprises (2015)

news.ycombinator.com M.E. O'Neill 2026-03-13 11:11:40

Properly seeding random number generators doesn't always get the attention it deserves. Quite often, people do a terrible job, supplying low-quality seed data (such as the system time or process id) or combining multiple poor sources in a half-baked way. C++11 provides std::seed_seq as a way to encourage the use of better seeds, but if you haven't thought about what's really going on when you use it, you may be in for a few surprises. In contrast to C++11, some languages, such as popular script

Topics: 32 bit seed seed_seq std

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Here are 13 of our favorite deals from Amazon’s early Prime Day sale

theverge.com Sheena Vasani 2026-03-17 02:04:21

Amazon’s next Prime Day event hasn’t officially kicked off yet, but in classic Amazon fashion, the retailer has already dropped a selection of early deals ahead of its four-day sale. While steeper discounts are not likely to arrive until next month, many of the current offers are already worth considering, especially if you’re a Prime member looking to score a deal on one of Amazon’s own devices or services. From record lows on security gear and power stations to a solid deal on what was alread

Topics: 99 amazon blink outdoor ring

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These premium outdoor speakers impressed me in more ways than Bluetooth can - here's why

zdnet.com Christian De Looper 2026-03-17 22:55:33

ZDNET's key takeaways The Polk Audio Atrium 5 speakers are available for $325 a pair, offering a sleek and weatherproof design. These speakers have a crisp, detailed, and surprisingly deep sound profile. You'll need an amplifier for these speakers, making them less convenient than using a Bluetooth speaker. $325 at B&H Photo-Video While plenty of folks use portable Bluetooth speakers for their outdoor listening needs, they're not the most practical choice if you're setting up an outdoor envir

Topics: atrium audio outdoor speaker speakers

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7 Best Outdoor Lights (2025), Including Solar Lights

wired.com Simon Hill 2026-03-20 02:00:00

Here are a few things to keep in mind when you go shopping for outdoor lights. Power: For most outdoor lighting, you need to run a cable to a power outlet, so you will want an outdoor socket. If you don’t have an outdoor socket, it’s usually a pretty cheap and quick job for an electrician to install a weatherproof one. Just be aware that large power adapters and awkwardly shaped plugs will not fit in outdoor sockets, so you will likely also want some kind of weatherproof box. I like the large D

Topics: bluetooth ip light lighting outdoor

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Here are 14 of our favorite deals from Amazon’s early Prime Day sale

theverge.com Sheena Vasani 2026-03-21 02:15:33

Amazon’s next Prime Day event hasn’t officially kicked off yet, but in classic Amazon fashion, the retailer has already dropped a selection of early deals ahead of its four-day sale. While steeper discounts are not likely to arrive until next month, many of the current offers are already worth considering, especially if you’re a Prime member looking to score a deal on one of Amazon’s own devices or services. From record lows on security gear and power stations to a solid deal on what was alread

Topics: 99 amazon blink outdoor ring

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CUDA Ray Tracing 2x Faster Than RTX: My CUDA Ray Tracing Journey

news.ycombinator.com Tanguy Fautré 2026-03-21 04:42:38

Welcome! This article is a deep dive into how I made a CUDA-based ray tracer that outperforms a Vulkan/RTX implementation—sometimes by more than 3x—on the same hardware. If you're interested in GPU programming, performance optimization, or just want to see how far you can push a path tracer, you're in the right place. The comparison is with RayTracingInVulkan by GPSnoopy, a well-known Vulkan/RTX renderer. My goal wasn't just to port Ray Tracing in One Weekend to CUDA, but to squeeze every last

Topics: cuda float memory ray std

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This Blink Outdoor 4 Floodlight Camera at 54% Off Costs Less Than It Did on Black Friday or Prime Day

gizmodo.com Brittany Vincent 2026-03-22 18:40:38

Whether you’re planning a summer getaway or just want to feel more secure at home, upgrading your outdoor security setup is a smart move. But you don’t want to buy tons of cameras to do the work of one. Not when there’s an all-in-one solution designed to help you keep a better eye on your property. It’s built for ease, but packed with features that give you peace of mind, no matter if it’s day or night. Run to Amazon now to get the Blink Outdoor 4 Floodlight Camera for $60, down from its usual

Topics: blink camera home outdoor want

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Blink security cameras are up to 62 percent off ahead of Prime Day

engadget.com Unknown 2026-03-23 01:59:08

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 . If you're looking to buy some affordable wireless security cameras, it's the perfect time to grab several from Amazon. Blink devices are on sale right now on the website for up 62 percent off ahead of Prime Day in July. Blink Outdoor 4, the brand's latest model, will only set you back

Topics: blink cameras day outdoor prime

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Deal: Get 3 Blink Outdoor 4 security cameras at a record-low price

androidauthority.com Unknown 2026-03-24 06:34:26

If you’re thinking of keeping an eye on your home when away, security cameras have never been as accessible and user-friendly as they are right now. And deals can get really nice. For example, this 3-pack of Blink Outdoor 4 cameras is only $99.99. That is a whopping $160 discount on the retail price! Buy a Blink Outdoor 4 3-Pack for just $99.99 ($160 off) This offer is available from Amazon, which actually owns the Blink brand. It’s a “limited time deal,” so we’re not sure how long the offer wi

Topics: 99 blink detection outdoor pack

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Amazon Sells Blink Outdoor Cameras (61% Off) at Zero Profit, Subscriptions Are the Real Goal

gizmodo.com Gizmodo Deals 2026-03-24 14:40:04

Every year, Amazon releases on the eve of Prime Day some great deals on its in-house brands like Blink, Ring, Kindle, Fire TVs, and Echo speakers. Rather than waiting for Prime Day itself, you can grab these deals in advance. The good news? These deals are available to non-Prime members as well. Summer is peak season for burglars, too, because most families are away on vacation which is one reason it’s even more crucial to lock up tight. The (other) good news is that the Blink Outdoor 4 wireles

Topics: blink camera cameras outdoor prime

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8BitDo’s controllers will work with the Switch 2 after a firmware update

theverge.com Andrew Liszewski 2026-03-25 06:08:19

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. 8BitDo announced that eight of its flagship controllers are now compatible with the Nintendo Switch 2 following a firmware update. Although some companies had early access to the Switch 2’s specs to build accessories like cases and screen protectors, many had to wait until launch day to ensure their devices were compatible with the new console.

Topics: 8bitdo bluetooth compatible controller ultimate

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Foolproof Ways to Stay Cool While Exercising Outside This Summer

cnet.com See Full Bio 2026-03-27 19:00:00

You might be looking forward to a summer full of outdoor activities, but how will you handle the heat? With summers getting hotter and hotter, make sure you take some precautions to stay safe while you're out running, walking, cycling or simply spending time outdoors. Remember that although it may seem picture-perfect outside, you can still experience heat exhaustion or heat stroke if it's considerably hot or if you go out during the hottest time of the day. Follow these tips to protect yoursel

Topics: day heat make outdoors time

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The Best Lawn and Outdoor Games (2025): Cornhole, Ladderball, and More

wired.com Parker Hall 2026-03-27 17:03:00

If you’re anything like me, you get pretty bored at barbecues. Sure, standing around drinking beer and grilling is fun. But the best lawn games can improve any outdoor gathering with a little fierce and friendly competition under the sun. From simple classics to creative new obsessions, there’s sure to be something on our list of excellent outdoor games you’ll enjoy during the nicest days of the year. While you’re here, be sure to check out our other summery guides, including the Best Tents, Be

Topics: best games outdoor sure updated

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Yaber T2 Outdoor Projector drops to new record-low price!

androidauthority.com Unknown 2026-03-27 22:31:42

Kaitlyn Cimino / Android Authority Are you looking for a good portable projector that won’t break the bank? The Yaber T2 Outdoor Projector is my personal pick. The $349.99 retail price is very reasonable, but discounts are common, and today’s is the best we’ve seen. It’s at a record low price of $233.99! Buy the Yaber T2 Outdoor Projector for just $233.99 ($116 off) This offer is available from Amazon and is a “limited time deal.” Like, very limited. This offer has a timer on it, and according

Topics: outdoor portable projector t2 yaber

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Follow These Expert Tips to Store Your Electric Yard Equipment the Right Way This Summer

cnet.com See Full Bio 2026-03-29 01:10:00

Summer is here, and that means it's finally time to enjoy your garden once again. But getting the most out of your outdoor space means maintaining it, and that means having the right tools. Between lawn mowers, string trimmers and other important lawn gear, you probably have a familiar problem -- how do you keep your electric tools safe when you aren't using it? You need to make sure that your tools are ready when you need them, and that means doing more than just throwing them into a shed and f

Topics: batteries battery equipment outdoor powered

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Early Prime Day deals include the 8BitDo Micro gamepad for only $17

engadget.com Unknown 2026-03-29 06:19:24

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 . Amazon Prime Days begins again on July 8, but early deals are already starting to trickle out. For instance, the 8BitDo Micro gamepad is on sale for just $17. This is a record-low price and represents a discount of 33 percent. However, the deal only applies to the green colorway. The

Topics: 8bitdo company gamepad like micro

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This Retro Gaming Keyboard Hits All the Right Nostalgia Vibes and It's a Great Keyboard

cnet.com See Full Bio 2026-03-30 03:00:06

As a child of the '90s few things get my nerd brain tingling like good ol' Super Mario. Even hearing my best friend's Mario-themed phone notifications take me back to a simpler time. So it's no surprise that I completely nerded out when I saw 8BitDo's Retro Mechanical Keyboard decked out in Mario colors. A solid mechanical keyboard with a heavy dose of nostalgia? Count me in. If the Mario theme isn't up your alley, the Retro is available in a few different versions, each pulling something from

Topics: 8bitdo buttons keyboard retro super

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Latest Tech News

Nextdoor redesigns app with AI recommendations, local news, and real-time emergency alerts

C++ Coroutines Advanced: Converting std:future to asio:awaitable

Jank is C++

Show HN: BinaryRPC – Lightweight WebSocket-based RPC framework in modern C++

Hot deal: Blink Outdoor 4 smart cams down from $130 to just $52 today

jank is C++

jank Is C++

Finally, a battery floodlight camera that's perfect for my dark yard (and it's 54% off)

Amazon Is Going Nuts, Gives You 2 Free Blink Cameras When You Buy One During Prime Day

Features of D That I Love

Why I'm ditching Bluetooth speakers in favor of this outdoor wired system - and don't regret it

Math.Pow(-1, 2) == -1 in Windows 11 Insider build

These premium outdoor speakers made me reconsider switching to Bluetooth audio - here's why

C++ Seeding Surprises (2015)

Here are 13 of our favorite deals from Amazon’s early Prime Day sale

These premium outdoor speakers impressed me in more ways than Bluetooth can - here's why

7 Best Outdoor Lights (2025), Including Solar Lights

Here are 14 of our favorite deals from Amazon’s early Prime Day sale

CUDA Ray Tracing 2x Faster Than RTX: My CUDA Ray Tracing Journey

This Blink Outdoor 4 Floodlight Camera at 54% Off Costs Less Than It Did on Black Friday or Prime Day

Blink security cameras are up to 62 percent off ahead of Prime Day

Deal: Get 3 Blink Outdoor 4 security cameras at a record-low price

Amazon Sells Blink Outdoor Cameras (61% Off) at Zero Profit, Subscriptions Are the Real Goal

8BitDo’s controllers will work with the Switch 2 after a firmware update

Foolproof Ways to Stay Cool While Exercising Outside This Summer

The Best Lawn and Outdoor Games (2025): Cornhole, Ladderball, and More

Yaber T2 Outdoor Projector drops to new record-low price!

Follow These Expert Tips to Store Your Electric Yard Equipment the Right Way This Summer

Early Prime Day deals include the 8BitDo Micro gamepad for only $17

This Retro Gaming Keyboard Hits All the Right Nostalgia Vibes and It's a Great Keyboard

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