Опубликовано: Fri, 26 Dec 2025 13:01:05 GMT
Канал: Все статьи подряд / DIY или Сделай сам / Хабр

Впереди зима (а зима может быть долгой :-)), поэтому самое время озаботиться извлечением пользы из инженерных навыков. Что нам могло бы помочь пережить зиму? В голову приходят два основных критических фактора: тепло и электроэнергия.Причём зачастую эти факторы требуются при нахождении вне помещения, то есть на улице.И, что интересно, обе эти потребности мы можем попытаться, в теории, закрыть (хотя бы частично) довольно неожиданным образом — получая тепло и электроэнергию прямо на ходу! Читать далее]]>

https://habr.com/ru/companies/ruvds/articles/978880/

An anonymous reader shares a report: China on Friday launched three venture capital funds to invest in "hard technology" areas, state broadcaster CCTV reported. The capital contribution plans for the funds have been finalised, each with more than 50 billion yuan ($7.14 billion), according to the report. The funds will primarily invest in early-stage startups and the targets should be valued at less than 500 million yuan, an official said on Friday, adding that no single investment would amount to more than 50 million yuan.

[ Read more of this story ]( https://slashdot.org/story/25/12/26/0641227/china-launches-21-billion-venture-capital-funds-to-invest-in-hard-technology?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Опубликовано: Fri, 26 Dec 2025 10:55:47 GMT
Канал: Все статьи подряд / Системное программирование / Хабр

Привет, Хабр! Сегодня поговорим про один из самых незаметных, но любопытных моментов языка C. Если вы пишете на C, скорее всего вы никогда не использовали ключевое слово restrict. А зря — этот квалификатор указателя может дать вашему коду неплохой прирост производительности. Правда, для этого придётся дать компилятору честное слово насчёт своих указателей. Читать далее]]>

https://habr.com/ru/companies/otus/articles/978524/

В рамках проекта Phoenix предпринята попытка создания с нуля нового X-сервера, не использующего наработки X.org Server и нацеленного на создание современной альтернативы, расширяющей протокол X11 и предоставляющей возможности для совместимости с Wayland. На текущем этапе развития Phoenix пока не готов к повседневному использованию, но уже позволяет организовать работу с простыми приложениями, использующими для вывода графики GLX, EGL или Vulkan, при вложенном запуске Phoenix поверх существующего X-сервера. Код написан на языке Zig и распространяется под лицензией GPLv3.

https://www.opennet.ru/opennews/art.shtml?num=64506

Опубликовано: Fri, 26 Dec 2025 09:46:36 GMT
Канал: Все статьи подряд / DIY или Сделай сам / Хабр

Всем привет!Думаю, многим из тех, кто решил покорять литературу на английском знакома эта ситуация: читаешь книгу (в моем случае - на читалке Kindle), честно выделяешь незнакомые слова, думая: «Вот дочитаю главу/книгу, выпишу их и выучу».Но есть загвоздка :-) Читать далее]]>

https://habr.com/ru/articles/980792/

The relentless climb in memory prices driven by the AI boom's insatiable demand for datacenter hardware has renewed an old debate about whether modern software has grown inexcusably fat, a column by the Register argues. The piece points to Windows Task Manager as a case study: the current executable occupies 6MB on disk and demands nearly 70MB of RAM just to display system information, compared to the original's 85KB footprint.

"Its successor is not orders of magnitude more functional," the column notes. The author draws a parallel to the 1970s fuel crisis, when energy shortages spurred efficiency gains, and argues that today's memory crunch could force similar discipline. "Developers should consider precisely how much of a framework they really need and devote effort to efficiency," the column adds. "Managers must ensure they also have the space to do so."

The article acknowledges that "reversing decades of application growth will not happen overnight" but calls for toolchains to be rethought and rewards given "for compactness, both at rest and in operation."

[ Read more of this story ]( https://developers.slashdot.org/story/25/12/26/0628235/memory-is-running-out-and-so-are-excuses-for-software-bloat?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Опубликовано: Fri, 26 Dec 2025 09:01:30 GMT
Канал: Все статьи подряд / DIY или Сделай сам / Хабр

Что может быть общего у новогодних праздников, технической реконструкции и электровакуумных приборов? О чём тут можно поговорить, в атмосфере всеобщего «Джингл бенс — джингл бенс»? Разумеется, это световое оформление праздника — светящиеся украшения, гирлянды. Современные светодиодные их варианты, естественно, отметаем, как и не станем смотреть на прорву обычных скучных пластиковых фонариков со стандартными миниатюрными лампочками накаливания. Пороемся и поищем более или менее оригинальные в техническом смысле украшения или, по крайней мере, интересные решения их отдельных узлов. Тёплые ламповые, да. Исследуемое время и пространство ограничим просторами нашей необъятной Родины, скажем — «то, что могло попасть в руки среднестатистическому гражданину СССР». Читать далее]]>

https://habr.com/ru/companies/ruvds/articles/978768/

Окружной суд штата Калифорния вынес предварительное решение в инициированном правозащитной организацией Software Freedom Conservancy (SFC) судебном разбирательстве против компании Vizio, обвиняемой в невыполнении требований лицензии GPL при распространении прошивок к умным телевизорам на базе платформы SmartCast. Суд постановил, что компания Vizio обязана предоставить доступ к исходному коду в форме, позволяющей третьим лицам загружать и изменять код. При этом суд принял ходатайство компании Vizio и согласился с тем, что применение лицензий GPLv2 и LGPLv2.1 не даёт оснований требовать у производителя информации, необходимой для установки модифицированного варианта прошивки на принадлежащий пользователю телевизор.

https://www.opennet.ru/opennews/art.shtml?num=64505

Опубликовано: Fri, 26 Dec 2025 08:16:24 GMT
Канал: Все статьи подряд / DIY или Сделай сам / Хабр

Для чего нужен Умный дом и почему я разработала свое устройствоИстория о разработке устройства умного дома без опыта, с минимальными ресурсами и максимальными приключениями в течение 6 лет. МУЗА — одно простое устройство для управления всеми основными функциями Умного дома, умная колонка с Алисой, датчиками и камерой в одном корпусе. Читать далее]]>

https://habr.com/ru/articles/980734/

Опубликовано: Fri, 26 Dec 2025 08:23:05 GMT
Канал: Все статьи подряд / DIY или Сделай сам / Хабр

Всем привет, давно хотелось соорудить свое оконечное устройство на Zigbee, и оказалось это не сильно сложно. Тем более что основа в виде Home Assistant на Raspberry Pi 4 со свистком Zigbee 3 SONOFF USB Dongle Plus-E есть и работает. Правда до этого в нем были только фабричные zigbee устройства, в основном Aqara. Итак погнали.Что нам нужно кроме вышеуказанного... Читать далее]]>

https://habr.com/ru/articles/980738/

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TOTAL TRAFFIC: 92MB

Michael Truell, the 25-year-old CEO and cofounder of Cursor, is drawing a sharp distinction between careful AI-assisted development and the more hands-off approach commonly known as "vibe coding." Speaking at a conference, Truell described vibe coding as a method where users "close your eyes and you don't look at the code at all and you just ask the AI to go build the thing for you." He compared it to constructing a house by putting up four walls and a roof without understanding the underlying wiring or floorboards. The approach might work for quickly mocking up a game or website, but more advanced projects face real risks.

"If you close your eyes and you don't look at the code and you have AIs build things with shaky foundations as you add another floor, and another floor, and another floor, and another floor, things start to kind of crumble," Truell said. Truell and three fellow MIT graduates created Cursor in 2022. The tool embeds AI directly into the integrated development environment and uses the context of existing code to predict the next line, generate functions, and debug errors. The difference, as Truell frames it, is that programmers stay engaged with what's happening under the hood rather than flying blind.

[ Read more of this story ]( https://developers.slashdot.org/story/25/12/26/0623233/cursor-ceo-warns-vibe-coding-builds-shaky-foundations-that-eventually-crumble?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Опубликовано: Fri, 26 Dec 2025 06:58:30 GMT
Канал: Все статьи подряд / Assembler / Хабр

Компиляторы то и дело удивляют меня очень хитрыми трюками. Когда я впервые увидел эту оптимизацию, то едва смог поверить в её реальность. Я изучал оптимизацию циклов и написал простую функцию, суммирующую все числа до заданного значения... Читать далее]]>

https://habr.com/ru/articles/980702/

Опубликовано: Fri, 26 Dec 2025 06:58:30 GMT
Канал: Все статьи подряд / Assembler / Хабр

Компиляторы то и дело удивляют меня очень хитрыми трюками. Когда я впервые увидел эту оптимизацию, то едва смог поверить в её реальность. Я изучал оптимизацию циклов и написал простую функцию, суммирующую все числа до заданного значения... Читать далее]]>

https://habr.com/ru/articles/980702/

Apple's Developer Academy in Detroit has spent roughly $30 million over four years training hundreds of people to build iPhone apps, but not everyone lands coding jobs right away, according to a WIRED story published this week.

The program launched in 2021 as part of Apple's $200 million response to the Black Lives Matter protests and costs an estimated $20,000 per student -- nearly twice what state and local governments budget for community colleges. About 600 students have completed the 10-month course at Michigan State University. Academy officials say 71% of graduates from the past two years found full-time jobs across various industries.

The program provides iPhones, MacBooks and stipends ranging from $800 to $1,500 per month, though one former student said many participants relied on food stamps. Apple contributed $11.6 million to the academy. Michigan taxpayers and the university's regular students covered about $8.6 million -- nearly 30% of total funding. Two graduates said their lack of proficiency in Android hurt their job prospects. Apple's own US tech workforce went from 6% Black before the academy opened to about 3% this year.

[ Read more of this story ]( https://apple.slashdot.org/story/25/12/26/041227/apples-app-course-runs-20000-a-student-is-it-really-worth-it?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Проект Arch Linux ограничил доступ к сайту archlinux.org из-за DDoS-атаки. До урегулирования ситуации доступ к сайту через IPv4 отключён и оставлен только для запросов через IPv6. Отмечается, что это вынужденная мера из-за невозможности решить проблему оперативно - для блокирования атаки требуется помощь хостинг-провайдера (Hetzner), но в праздничные дни возможность обращения в службу поддержки оказалась проблематичной.

https://www.opennet.ru/opennews/art.shtml?num=64504

Google appears to be testing a feature that would let users change their @gmail.com address for the first time, according to an official support document. The support page exists only in Hindi, suggesting an India-first rollout, and Google notes that users will "gradually begin to see this option."

The feature would let users switch to a new @gmail address while retaining full access to their old one, effectively giving a single account two working email addresses. Emails sent to either address would arrive in the same inbox, and existing data in Drive and Photos would remain unaffected. Users who switch cannot register another new address for 12 months. Google has not officially announced the feature.

[ Read more of this story ]( https://it.slashdot.org/story/25/12/26/0155213/gmail-users-may-soon-be-able-to-change-their-email-address-and-keep-the-old-one?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Apple has agreed to a settlement with Brazil's antitrust regulator that will require the company to allow third-party app stores on iPhones and permit developers to direct users to external payment options, marking another country where Apple's tightly controlled App Store model is being pried open by government action.

Brazil's Administrative Council of Economic Defense approved the settlement this week, resolving an investigation that began in 2022 into whether Apple's restrictions on app distribution and payments limited competition. Under the new rules, developers can offer third-party payment methods within their apps alongside Apple's own system. The fee structure varies: purchases through Apple's system remain subject to a 10% or 25% commission plus a 5% transaction fee. Apps that include a clickable link to external payment will face a 15% fee, while static text directing users elsewhere incurs no charge. Third-party app stores will pay a 5% Core Technology Commission.

[ Read more of this story ]( https://apple.slashdot.org/story/25/12/26/0039248/apple-settles-brazilian-antitrust-case-must-allow-third-party-app-stores-and-external-payment-links?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

An anonymous reader shares a report: A typosquatted domain impersonating the Microsoft Activation Scripts (MAS) tool was used to distribute malicious PowerShell scripts that infect Windows systems with the 'Cosmali Loader'. BleepingComputer has found that multiple MAS users began reporting on Reddit yesterday that they received pop-up warnings on their systems about a Cosmali Loader infection.

Based on the reports, attackers have set up a look-alike domain, "get[dot]activate[dot]win," which closely resembles the legitimate one listed in the official MAS activation instructions, "get[dot]activated[dot]win." Given that the difference between the two is a single character ("d"), the attackers bet on users mistyping the domain.

[ Read more of this story ]( https://it.slashdot.org/story/25/12/25/2058205/fake-mas-windows-activation-domain-used-to-spread-powershell-malware?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Представлен релиз проекта QEMU 10.2.0. В качестве эмулятора QEMU позволяет запустить программу, собранную для одной аппаратной платформы на системе с совершенно иной архитектурой, например, выполнить приложение для ARM на x86-совместимом ПК. В режиме виртуализации в QEMU производительность выполнения кода в изолированном окружении близка к аппаратной системе за счёт прямого выполнения инструкций на CPU и задействования гипервизора Xen или модуля KVM в Linux, или модуля NVMM в NetBSD.

https://www.opennet.ru/opennews/art.shtml?num=64500

Goldman Sachs analysts have identified a notable shift in how investors respond to corporate layoff announcements, finding that even job cuts attributed to automation and AI-driven restructuring are now causing stock prices to fall rather than rise. The investment bank linked recent layoff announcements to public companies' earnings reports and stock market data, concluding that stocks dropped by an average of 2% following such announcements, and companies citing restructurings faced even harsher punishment.

The traditional Wall Street playbook held that layoffs tied to strategic restructuring would boost stock prices, while cuts driven by declining sales would hurt them. That distinction appears to have collapsed.

Goldman's analysts suggest investors simply don't believe what companies are saying -- firms announcing layoffs have experienced higher capex, debt and interest expense growth alongside lower profit growth compared to industry peers this year. The real driver, analysts suspect, may be cost reduction to offset rising interest expenses and declining profitability rather than any forward-looking efficiency play.

Goldman expects layoffs to keep rising, motivated in part by companies' stated desire to use AI to reduce labor costs.

[ Read more of this story ]( https://slashdot.org/story/25/12/25/1727221/wall-street-has-stopped-rewarding-strategic-layoffs?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

An anonymous reader shares a report: Chinese social media users criticized two key government policies, rare signs of public dissent in the country where the internet is heavily censored. The death of the former head of China's one-child policy agency -- which for decades forced women to carry out abortions and sterilizations -- sparked criticism of the demographic effort, with one netizen lamenting the "children who were lost."

Others, meanwhile, criticized Beijing's leadership over its ongoing row with Tokyo, sparked by Japanese Prime Minister Sanae Takaichi saying her country could intervene to defend Taiwan in a potential Chinese attack on the self-ruled island, which Beijing claims as its own.

[ Read more of this story ]( https://tech.slashdot.org/story/25/12/25/1632226/chinese-social-media-users-criticize-authorities-in-rare-sign-of-dissent?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Опубликовано: Thu, 25 Dec 2025 17:25:31 GMT
Канал: Все статьи подряд / Системное программирование / Хабр

Windows 10 нинужон!Запускаем 3D симуляцию самого популярного в мире редактора УП для станков с ЧПУ CIMCO Edit 2025 (2025.01.25) в операционной системе Microsoft Windows 7. И ещё переводим на русский язык саму программу. Читать далее всё это безобразие...]]>

https://habr.com/ru/articles/980632/

Framework has announced yet another price increase for memory modules, the second in roughly a month, and the company is now actively encouraging customers to source their own RAM elsewhere if they can find better deals. The laptop maker cited "extreme memory shortages and price volatility" as the reason for the hike, noting that 32GB modules and smaller currently cost around $10 per gigabyte while 48GB modules run approximately $13 per gigabyte.

Framework said it expects to raise prices again by January as its suppliers continue increasing costs, a trend analysts predict will persist through 2026. Framework plans to add a direct link to PCPartPicker in its configurators so DIY Edition buyers can compare prices and find cheaper alternatives. The company said its pricing still compares favorably to Apple's roughly $25 per gigabyte and pledged to stay as close as possible to acquisition costs. Storage price increases are also on the horizon, Framework warned.

[ Read more of this story ]( https://it.slashdot.org/story/25/12/25/1627223/framework-raises-memory-prices-again-suggests-customers-bring-their-own-ram?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Waymo's fleet of autonomous robotaxis can navigate city streets and compete with human taxi drivers, but they become stranded when a passenger leaves a door ajar -- prompting the company to pay tow truck operators around $20 to $24 through an app called Honk just to push a door shut. The owner of a towing company in Inglewood, California, completes up to three such jobs a week for Waymo, sometimes freeing vehicles by removing seat belts caught in doors. Another Los Angeles tow operator said locating stuck robotaxis can take 10 minutes to an hour because the precise location isn't always provided, forcing workers to search on foot through narrow streets too narrow for flatbed rigs.

Tow operators also retrieve Waymos that run out of battery before reaching charging stations, earning $60 to $80 per tow -- rates that aren't always profitable after factoring in fuel and labor. During a San Francisco power outage last weekend, multiple operators received a flurry of retrieval requests as robotaxis blocked intersections across the city. One San Francisco tow company manager declined because Waymo's offered rate fell below his standard $250 flatbed fee.

Waymo said in a blog post that the outage caused a "backlog" in requests to remote human workers who help vehicles navigate defunct traffic signals. San Francisco Supervisor Bilal Mahmood called for a hearing into Waymo's operations, saying the traffic disruptions were "dangerous and unacceptable." A retired Carnegie Mellon engineering professor who studied autonomous vehicles for nearly 30 years said paying humans to close doors and retrieve stalled cars is expensive and will need to be minimized as Waymo scales up. The company is testing next-generation Zeekr vehicles in San Francisco that feature automatic sliding doors.

[ Read more of this story ]( https://tech.slashdot.org/story/25/12/25/1541258/waymo-pays-workers-22-to-close-doors-on-stranded-robotaxis?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Nvidia has agreed to buy assets from Groq, a designer of high-performance artificial intelligence accelerator chips, for $20 billion in cash, according to Alex Davis, CEO of Disruptive, which led the startup's latest financing round in September. From a report: Davis, whose firm has invested more than half a billion dollars in Groq since the company was founded in 2016, said the deal came together quickly.

Groq raised $750 million at a valuation of about $6.9 billion three months ago. Investors in the round included Blackrock and Neuberger Berman, as well as Samsung, Cisco, Altimeter and 1789 Capital, where Donald Trump Jr. is a partner. Groq said in a blog post on Wednesday that it's "entered into a non-exclusive licensing agreement with Nvidia for Groq's inference technology," without disclosing a price. With the deal, Groq founder and CEO Jonathan Ross along with Sunny Madra, the company's president, and other senior leaders "will join Nvidia to help advance and scale the licensed technology," the post said.

[ Read more of this story ]( https://slashdot.org/story/25/12/25/152201/nvidia-buying-groqs-assets-for-20-billion-in-its-largest-deal-on-record?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Проект CoMaps, развивающий полностью открытый коммьюнити-форк мобильного картографического приложения Organic Maps, опубликовал релиз 2025.12.19 и отчёт о состоянии проекта и сообщества. Код проекта распространяется под лицензией Apache 2.0. Приложение доступно в каталогах F-Droid, Google Play и Apple App Store, а также напрямую на Codeberg.

https://www.opennet.ru/opennews/art.shtml?num=64497

The Trump administration has announced it would replace the lottery programme used to grant H-1B visas for skilled foreign workers with a system that prioritises higher-paid individuals. From a report: The Department of Homeland Security said it would begin to implement a "weighted" selection process to give an advantage to higher-skilled and higher-paid applicants from February, according to a statement posted on its website. Matthew Tragesser, Citizenship and Immigration Services spokesperson, said: "The existing random selection process of H-1B registrations was exploited and abused by US employers who were primarily seeking to import foreign workers at lower wages than they would pay American workers."

The move is the latest in a broad crackdown on US immigration by President Donald Trump, who has dramatically stepped up deportations of immigrants and sent enforcement agents into cities across the country to carry out arrests. The change also follows moves earlier this year to curb the number of applicants for the H-1B visa, which is popular among technology and professional services companies, including charging an additional $100,000 fee.

Beryl Howell, a federal judge on the US District Court for the District of Columbia, late on Tuesday ruled the White House could move forward with the application charge after the US Chamber of Commerce had sued in October to block the six-figure fee.

[ Read more of this story ]( https://news.slashdot.org/story/25/12/25/0929209/trump-administration-to-overhaul-lottery-system-for-h-1b-visas?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Опубликовано: Thu, 25 Dec 2025 13:01:53 GMT
Канал: Все статьи подряд / DIY или Сделай сам / Хабр

Привет, Хабр! Я продолжаю совершенствовать любимые электрогитары, и сегодня подробно расскажу о текущих доработках одной из них — дизайнерского суперстрата Tinar GT500.Речь пойдёт о выборе доступных недорогих звукоснимателей, их правильной фазировке и маленьких секретах темброблока, способных весьма расширить исполнительские возможности инструмента. Читать далее]]>

https://habr.com/ru/companies/ruvds/articles/949182/

An anonymous reader quotes a report from the Wall Street Journal: It's harder than ever to mine bitcoin. And less profitable, too. But mining-company stocks are still flying, even with cryptocurrency prices in retreat. That's because these firms have something in common with the hottest investment theme on the planet: the massive, electricity-hungry data centers expected to power the artificial-intelligence boom. Some companies are figuring out how to remake themselves as vital suppliers to Alphabet, Amazon, Meta, Microsoft and other "hyperscalers" bent on AI dominance.

Bitcoin-mining -- using vast computer power to solve equations to unlock the digital currency -- has been a lucrative and cutting-edge pursuit in its own right. Lately, however, increased competition and other challenges have eroded profit margins. But just as the bitcoin-mining business began to cool, the AI build-out turned white hot. The AI arms race has created an insatiable demand for some assets the miners already have: data centers, cooling systems, land and hard-to-obtain contracts for electrical power -- all of which can be repurposed to train and power AI models.

It's not a seamless process. Miners often have to build new, specialized facilities, because running AI requires more-advanced cooling and network systems, as well as replacing bitcoin-mining computers with AI-focused graphics processing units. But signing deals with miners allows AI giants to expand faster and cheaper than starting new facilities from scratch. These companies still mine some bitcoin, but the transition gives miners a new source of deep-pocketed customers willing to commit to longer-term leases for their data centers.

"The opportunity for miners to convert to AI is one of the greatest opportunities I could possibly imagine," said Adam Sullivan, chief executive of Core Scientific, which has pivoted to AI data centers. The shift has boosted miners' stocks. The CoinShares Bitcoin Mining ETF has surged about 90% this year, a rally that has accelerated even as bitcoin erased its gains for 2025. The ETF holds shares of miners including Cipher Mining and IREN, both of which have surged following long-term deals with companies such as Amazon and Microsoft. Shares of Core Scientific quadrupled in 2024 after the company signed its first AI contract that February. The stock has gained 10% this year. The company now expects to exit bitcoin mining entirely by 2028.

[ Read more of this story ]( https://slashdot.org/story/25/12/24/2125245/bitcoin-miners-pivot-to-ai-has-lifted-bitcoin-mining-etf-by-about-90-this-year?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Опубликовано: Thu, 25 Dec 2025 12:00:45 GMT
Канал: Все статьи подряд / Системное программирование / Хабр

Наверняка у вас тоже было такое, что сервис работает себе спокойно, радует пользователей своей стабильностью и производительностью, а вас зелёным мониторингом. А в следующий момент хлоп - и нет его. Вы на панике смотрите в логи ошибок, а там или невнятный сегфолт, или просто ничего. Что делать – непонятно, и вообще надо прод спасать, поэтому вы поднимаете его обратно и всё работает как и раньше. Вы ещё пытаетесь разобраться в причинах случившегося, но со временем переключаетесь на другие задачи, а этот случай отходит на дальний план или вообще забывается.Но это всё хорошо когда вы один, а вот если у вас много клиентов, то рано или поздно у вас возникает ощущение что что-то не так и надо разобраться с этими всплесками энтропии, чтобы найти первопричину подобных событий.В этой статье описано наше исследование длиною в год,  из которого вы узнаете, почему PostgreSQL(и любое другое приложение) может падать из-за бага в ядре Linux, причём тут XFS и почему очистка памяти может быть не так полезна, как вы о ней думали. Читать далее]]>

https://habr.com/ru/companies/postgrespro/articles/980218/

Состоялся релиз Ruby 4.0.0, динамического объектно-ориентированного языка программирования, сосредоточенного на высокой эффективности разработки программ и вобравшего в себя лучшие черты Perl, Java, Python, Smalltalk, Eiffel, Ada и Lisp. Код проекта распространяется под лицензиями BSD ("2-clause BSDL") и "Ruby", которая ссылается на последний вариант лицензии GPL и совместима с GPLv3.

https://www.opennet.ru/opennews/art.shtml?num=64494

alternative_right shares a report from Euronews: France's President Emmanuel Macron discovered news of his own supposed overthrow, after he received a message of concern, along with a link to a Facebook video. "On Sunday (14 December) one of my African counterparts got in touch, writing 'Dear president, what's happening to you? I'm very worried,'" Macron told readers of French local newspaper La Provence on December 16.

Alongside the message, a compelling video showcasing a swirling helicopter, military personnel, crowds and -- what appears to be -- a news anchor delivering a piece to camera. "Unofficial reports suggest that there has been a coup in France, led by a colonel whose identity has not been revealed, along with the possible fall of Emmanuel Macron. However, the authorities have not issued a clear statement," she says.

Except, nothing about this video is authentic: it was created with AI. After discovering the video, Macron asked Pharos -- France's official portal for signaling online illicit content -- to call Facebook's parent company Meta, to get the fake video removed. But that request was turned down, as the platform claimed it did not violate its "rules of use." [...] The original video ... racked up more than 12 million views [...].The teenager running the account is based in Burkina Faso and makes money running courses focusing on how to monetize AI. He eventually took the video down more than a week after its initial publication, due to political -- and public -- controversy. "I tend to think that I have more power to apply pressure than other people," Macron said. "Or rather, that it's easier to say something is serious if I am the one calling, but it doesn't work."

"These people are mocking us," he added. "They don't care about the serenity of public debates, they don't care about democracy, and therefore they are putting us in danger."

[ Read more of this story ]( https://slashdot.org/story/25/12/24/2133243/fake-video-claiming-coup-in-france-goes-viral?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Опубликовано: Thu, 25 Dec 2025 09:05:14 GMT
Канал: Все статьи подряд / DIY или Сделай сам / Хабр

Продолжение статьи «Как я скрещивал Ардуино и лего». Если вкратце, я столкнулся с проблемой выбора контроллера для обучения детей среднего школьного возраста (5-8 класс), мне не понравились готовые решения, и я решил разработать свой контроллер на базе Arduino Nano, со встроенными драйверами двигателей и закрытым корпусом, совместимым с Lego. Но по большому счету я это делал, потому что могу :)С момента прошлой статьи прошло более полугода. За это время многое произошло. Я разработал новые и переработал старые корпуса для датчиков и контроллера. Собрал небольшую партию устройств. Запустил сайт и даже разработал свой блочный/кодовый редактор для контроллера ZERO и других Arduino подобных плат. Но обо всем по порядку... Читать далее]]>

https://habr.com/ru/companies/timeweb/articles/975948/

Опубликовано: Thu, 25 Dec 2025 08:24:57 GMT
Канал: Все статьи подряд / DIY или Сделай сам / Хабр

Если вы уже работали с приёмниками SDR и программами SDRSharp и SDR++, то, скорее всего, умеете «ловить» с их помощью FM-радио или радиостанции авиационного диапазона. Об этом я рассказывал в статьях «Этот увлекательный мир радиоприёмников» и «Цифровая радиотехника, первые шаги. Repka Pi + SDR = Сканируем Радиоэфир». Но что если вам нужно создать свой нестандартный приёмник или другую радиосистему на базе устройства SDR, да ещё без паяльника и составления программ?Для этого пригоден фреймворк GnuRadio, позволяющий с помощью блочного конструктора собрать нужную цепочку обработки сигналов из готовых или созданных вами блоков. В результате из нарисованной диаграммы вы получите готовую программу для взаимодействия с устройствами SDR и для обработки сигналов. Расскажу подробнее в этом материале. Читать далее]]>

https://habr.com/ru/companies/first/articles/978992/

Опубликован выпуск высокопроизводительного HTTP-сервера и многопротокольного прокси-сервера Angie 1.11.0, ответвлённого от Nginx группой бывших разработчиков проекта, уволившихся из компании F5 Network. Исходные тексты Angie доступны под лицензией BSD. Проект получил сертификаты совместимости с российскими операционными системами Ред ОС, Astra Linux Special Edition, Роса Хром Сервер, Альт и ФСТЭК-версии Альт.

https://www.opennet.ru/opennews/art.shtml?num=64495

TOP10 VISITORS:

[1] 217.197.116.x point=421 web=0 up=29.7MB (30%) <--- naste (18/hr)
[2] 37.252.14.x point=145 web=0 up=28.1MB (28%) <--- ake (6/hr)
[3] PetalBot point=7 web=1018 up=6.3MB (6%) <--- PetalBot
[4] Google point=1 web=625 up=6.2MB (6%) <--- Google
[5] ClaudeBot point=0 web=424 up=5.7MB (5%)
[6] Amazon point=0 web=148 up=5.1MB (5%)
[7] 195.178.110.x point=0 web=3 up=4.0MB (4%)
[8] 144.76.32.x point=0 web=69 up=3.7MB (3%)
[9] 216.244.66.x point=3 web=66 up=2.9MB (2%) <--- 216.244.66.x
[10] 217.114.158.x point=27 web=0 up=1.2MB (1%) <--- fox (1/hr)

TOTAL TRAFFIC: 98MB

Опубликовано: Thu, 25 Dec 2025 07:00:02 GMT
Канал: Все статьи подряд / DIY или Сделай сам / Хабр

Системы управления инженерными сетями, в отличие от самих инженерных систем, редко проектируют с расчетом на десятилетия эксплуатации. Проблема чаще связана не со сроком службы оборудования, а с невозможностью модернизации и отсутствием запасных частей.В статье разбираем кейс замены автоматики системы отопления в квартире с централизованным теплоснабжением. Исходная система проработала около 15 лет, после чего стала неремонтопригодной.Тем не менее выход существует. Покажем, как удалось обойти существующие ограничения и вернуть управляемость отопления в квартире, получив при этом удаленный доступ со смартфона и возможность дальнейшего развития логики управления. Читать далее]]>

https://habr.com/ru/companies/wirenboard/articles/980250/

Опубликовано: Thu, 25 Dec 2025 07:05:03 GMT
Канал: Все статьи подряд / DIY или Сделай сам / Хабр

MyLMTSМеня всегда привлекали несколько парадоксальные устройства из техники, которые, не содержат практически ни одной детали, но, в то же время, выполняют свою функцию — по сути своей, они представляют собой идеальное техническое устройство, так как в нём идея минимизации количества компонентов (и максимизации надёжности, соответственно), доведена до абсолюта. И сегодня мы рассмотрим ещё одно такое интересное устройство... ;-) Читать далее]]>

https://habr.com/ru/companies/beget/articles/978824/

With NASA's Mars Sample Return mission delayed into the 2030s, engineers are certifying the Perseverance rover to keep operating for many more years while it continues collecting and safeguarding Martian rock samples. Ars Technica reports: The good news is that the robot, about the size of a small SUV, is in excellent health, according to Steve Lee, Perseverance's deputy project manager at NASA's Jet Propulsion Laboratory (JPL). "Perseverance is approaching five years of exploration on Mars," Lee said in a press briefing Wednesday at the American Geophysical Union's annual fall meeting. "Perseverance is really in excellent shape. All the systems onboard are operational and performing very, very well. All the redundant systems onboard are available still, and the rover is capable of supporting this mission for many, many years to come."

The rover's operators at JPL are counting on sustaining Perseverance's good health. The rover's six wheels have carried it a distance of about 25 miles, or 40 kilometers, since landing inside the 28-mile-wide (45-kilometer) Jezero Crater in February 2021. That is double the original certification for the rover's mobility system and farther than any vehicle has traveled on the surface of another world. Now, engineers are asking Perseverance to perform well beyond expectations. An evaluation of the rover's health concluded it can operate until at least 2031. The rover uses a radioactive plutonium power source, so it's not in danger of running out of electricity or fuel any time soon. The Curiosity rover, which uses a similar design, has surpassed 13 years of operations on Mars.

There are two systems that are most likely to limit the rover's useful lifetime. One is the robotic arm, which is necessary to collect samples, and the other is the rover's six wheels and the drive train that powers them. "To make sure we can continue operations and continue driving for a long, long way, up to 100 kilometers (62 miles), we are doing some additional testing," Lee said. "We've successfully completed a rotary actuator life test that has now certified the rotary system to 100 kilometers for driving, and we have similar testing going on for the brakes. That is going well, and we should finish those early part of next year."

[ Read more of this story ]( https://science.slashdot.org/story/25/12/24/2116243/nasa-will-soon-find-out-if-the-perseverance-rover-can-really-persevere-on-mars?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Фонд свободного ПО объявил о получении двух неожиданных пожертвований, суммарным размером 900 тысяч долларов. Средства переданы анонимными доброжелателями с использованием криптовалюты Monero, разработанной для обеспечения полной анонимности и невозможности отследить платежи. Полученные пожертвования помогут укрепить независимость организации и будут потрачены на поддержку технической команды и инфраструктуры, а также расширение проводимых кампаний, образовательной деятельности, работы с лицензиями и инициатив по продвижению СПО.

https://www.opennet.ru/opennews/art.shtml?num=64493

После полугода разработки опубликован выпуск проекта XLibre 25.1.0, развивающего форк X.Org Server. Первый выпуск ветки XLibre XServer 25.1.0 позиционируется как имеющий качество бета-версии и предназначен для тестирования и выявления возможных недоработок. Следом планируют выпустить ещё две бета-версии, после чего в выпуске 25.1.3 объявить ветку стабильной.

https://www.opennet.ru/opennews/art.shtml?num=64492

Опубликовано: Thu, 25 Dec 2025 05:10:25 GMT
Канал: Все статьи подряд / Робототехника / Хабр

Ученые из университетов Пенсильвании и Мичигана создали самых маленьких в мире автономных и программируемых роботов. Размер около 200 микрометров — примерно вдвое больше ширины человеческого волоса.  Каждый робот способен воспринимать окружающую среду, «думать» и действовать независимо, без внешних указаний. Цель технологии – отслеживать состояние отдельных клеток в нашем организме, адресно доставлять лекарства или значительно улучшить разработку микроэлектроники. Читать далее]]>

https://habr.com/ru/articles/980312/

An anonymous reader quotes a report from the Financial Post: A Texas power developer is proposing to repurpose nuclear reactors from Navy warships to power the United States grid as the Trump administration pushes to secure massive amounts of energy for the artificial intelligence boom. HGP Intelligent Energy LLC filed an application to the Energy Department to redirect two retired reactors to a data center project proposed at Oak Ridge, Tennessee, according to a letter submitted to the agency's Office of Energy Dominance Financing. The project, filed for the White House's Genesis Mission, would produce about 450-520 megawatts of around-the-clock electricity, or enough to power roughly 360,000 homes. The proposal would rewire reactors from naval vessels, originally built by Westinghouse Electric Company and General Electric, at a fraction of the cost of new builds.

According to the report, The developer expects to seek a loan guarantee from the U.S. Department of Energy and raise roughly $1.8-$2.1 billion in private capital to prepare the reactors for civilian use, targeting initial completion by 2029. The approach is technically feasible but would break new ground by adapting military nuclear assets for the commercial grid. Bloomberg first reported the story.

[ Read more of this story ]( https://hardware.slashdot.org/story/25/12/24/1920243/nuclear-developer-proposes-using-navy-reactors-for-data-centers?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

"In the age of Spotify and AI slop, tapes remind us what we're missing when we stop taking risks," writes author Janus Rose in an article for 404 Media. Here's an excerpt: There are lots of advantages to the cassette lifestyle. Unlike vinyl records, tapes are compact and super-portable, and unlike streaming, you never have to worry about a giant company suddenly taking them away from you. They can be easily duplicated, shared, and made into mixtapes using equipment you find in a junk shop. When I was a kid, the first music I ever owned were tapes I recorded from MTV with a Kids' Fisher Price tape recorder. I had no money, so I would listen to those tapes for hours, relishing every word Kim Gordon exhaled on my bootlegged copy of Sonic Youth's "Bull in the Heather." Just like back then, my rediscovery of cassettes has led me to start listening more intentionally and deeply, devoting more and more time to each record without the compulsion to hit "skip." Most of the cassettes I bought in Tokyo had music I probably never would have found or spent time with otherwise.

Getting reacquainted with tapes made me realize how much has been lost in the streaming era. Over the past two decades, platforms like Spotify co-opted the model of peer-to-peer filesharing pioneered by Napster and BitTorrent into a fully captured ecosystem. But instead of sharing, this ecosystem was designed around screen addiction, surveillance, and instant gratification -- with corporate middlemen and big labels reaping all the profits. Streaming seeks to virtually eliminate what techies like to call "user friction," turning all creative works into a seamless and unlimited flow of data, pouring out of our devices like water from a digital faucet. Everything becomes "Content," flattened into aesthetic buckets and laser-targeted by "perfect fit" algorithms to feed our addictive impulses. Thus the act of listening to music is transformed from a practice of discovery and communication to a hyper-personalized mood board of machine-optimized "vibes."

What we now call "AI Slop" is just a novel and more cynically efficient vessel for this same process. Slop removes human beings as both author and subject, reducing us to raw impulses -- a digital lubricant for maximizing viral throughput. Whether we love or hate AI Slop is irrelevant, because human consumers are not its intended beneficiaries. In the minds of CEOs like OpenAI's Sam Altman, we're simply components in a machine built to maintain and accelerate information flows, in order to create value for an insatiably wealthy investor class. [...]

Tapes and other physical media aren't a magic miracle cure for late-stage capitalism. But they can help us slow down and remember what makes us human. Tapes make music-listening into an intentional practice that encourages us to spend time connecting with the art, instead of frantically vibe-surfing for something that suits our mood from moment-to-moment. They reject the idea that the point of discovering and listening to music is finding the optimal collection of stimuli to produce good brain chemicals. More importantly, physical media reminds us that nothing good is possible if we refuse to take risks. You might find the most mediocre indie band imaginable. Or you might discover something that changes you forever. Nothing will happen if you play it safe and outsource all of your experiences to a content machine designed to make rich people richer.

[ Read more of this story ]( https://news.slashdot.org/story/25/12/24/219224/why-i-quit-streaming-and-got-back-into-cassettes?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Apple will allow alternative iOS app stores and external payment systems in Brazil after settling an antitrust case with the country's competition authority, following a lawsuit brought by MercadoLibre back in 2022. Thurrott reports: Yesterday, Brazil's Conselho Administrativo de Defesa Economica (CADE) explained in its press release that it has approved a Term of Commitment to Cease (TCC) submitted by Apple. To settle the lawsuit, the iPhone maker has agreed to allow third-party iOS app stores in Brazil and to let developers use external payment systems. The company will also use neutral wording in the warning messages about third-party app stores and external payment systems that iOS users in Brazil will see.

As part of the settlement, Apple has 105 days to implement these changes to avoid a fine of up to $27.1 million. A separate report from Brazilian blog Tecnoblog revealed that Apple will still take a 5% "Core Technology Commission" fee on transactions going through alternative app stores. Additionally, the company will take a 15% cut on in-app purchases for App Store apps when developers redirect users to their own payment systems.

[ Read more of this story ]( https://apple.slashdot.org/story/25/12/24/2055236/apple-to-allow-alternative-app-stores-for-ios-users-in-brazil?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

An anonymous reader quotes a report from Wired: Two years ago, Lizmary Fernandez took a detour from studying to be an immigration attorney to join a free Apple course for making iPhone apps. The Apple Developer Academy in Detroit launched as part of the company's $200 million response to the Black Lives Matter protests and aims to expand opportunities for people of color in the country's poorest big city. But Fernandez found the program's cost-of-living stipend lacking -- "A lot of us got on food stamps," she says -- and the coursework insufficient for landing a coding job. "I didn't have the experience or portfolio," says the 25-year-old, who is now a flight attendant and preparing to apply to law school. "Coding is not something I got back to."

Since 2021, the academy has welcomed over 1,700 students, a racially diverse mix with varying levels of tech literacy and financial flexibility. About 600 students, including Fernandez, have completed its 10-month course of half-days at Michigan State University, which cosponsors the Apple-branded and Apple-focused program. WIRED reviewed contracts and budgets and spoke with officials and graduates for the first in-depth examination of the nearly $30 million invested in the academy over the past four years -- almost 30 percent of which came from Michigan taxpayers and the university's regular students. As tech giants begin pouring billions of dollars into AI-related job training courses across the country, the Apple academy offers lessons on the challenges of uplifting diverse communities.

[...] The program gives out iPhones and MacBooks and spends an estimated $20,000 per student, nearly twice as much as state and local governments budget for community colleges. [...] About 70 percent of students graduate, which [Sarah Gretter, the academy leader for Michigan State] describes as higher than typical for adult education. She says the goal is for them to take "a next step," whether a job or more courses. Roughly a third of participants are under 25, and virtually all of them pursue further schooling. [...] About 71 percent of graduates from the last two years went onto full-time jobs across a variety of industries, according to academy officials. Amy J. Ko, a University of Washington computer scientist who researches computing education, calls under 80 percent typical for the coding schools she has studied but notes that one of her department's own undergraduate programs has a 95 percent job placement rate.

[ Read more of this story ]( https://developers.slashdot.org/story/25/12/24/1957228/apples-app-course-runs-20000-a-student-is-it-really-worth-it?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Adult children across the United States are increasingly reporting that their aging parents have developed what looks remarkably like the smartphone addiction [non-paywalled source] typically associated with teenagers, a phenomenon The Atlantic's Charlie Warzel has dubbed "phone-based retirement." A 2019 Pew Research Center study found people 60 and older spend more than half their daily leisure time -- four hours and 16 minutes -- in front of screens. Nielsen reported this year that adults 65 and up watch YouTube on their TVs nearly twice as much as they did two years ago. 40% of adults aged 59 to 77 reported feeling anxious without device access in a 2,000-person survey.

Ipsit Vahia, chief of geriatric psychiatry at Mass General Brigham's McLean Hospital, cautioned against treating all older adults as a monolithic group. The COVID-19 pandemic drove significant tech adoption among seniors as Zoom became essential for family gatherings, church services, and telehealth. Some research suggests device use may be linked to better cognitive function for people over 50, and Vahia noted that technology use in older adults appears to protect them from isolation and loneliness -- the opposite of its effect on teenagers.

[ Read more of this story ]( https://tech.slashdot.org/story/25/12/24/1952241/the-phone-based-retirement-is-here?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

After Anna's Archive published a massive scrape containing 86 million songs and metadata from Spotify, the streaming giant responded by disabling the nefarious accounts responsible. A spokesperson for Spotify told Recorded Future News that it "has identified and disabled the nefarious user accounts that engaged in unlawful scraping."

"We've implemented new safeguards for these types of anti-copyright attacks and are actively monitoring for suspicious behavior," the spokesperson said. "Since day one, we have stood with the artist community against piracy, and we are actively working with our industry partners to protect creators and defend their rights." The Record reports: The spokesperson added that Anna's Archive did not contact them before publishing the files. They also said it did not consider the incident a "hack" of Spotify. The people behind the leaked database systematically violated Spotify's terms by stream-ripping some of the music from the platform over a period of months, a spokesperson said. They did this through user accounts set up by a third party and not by accessing Spotify's business systems, they added.

Anna's Archive published a blog post about the cache this weekend, writing that while it typically focuses its efforts on text, its mission to preserve humanity's knowledge and culture "doesn't distinguish among media types." "Sometimes an opportunity comes along outside of text. This is such a case. A while ago, we discovered a way to scrape Spotify at scale. We saw a role for us here to build a music archive primarily aimed at preservation," they said. "This Spotify scrape is our humble attempt to start such a 'preservation archive' for music. Of course Spotify doesn't have all the music in the world, but it's a great start."

[ Read more of this story ]( https://entertainment.slashdot.org/story/25/12/24/1939236/spotify-disables-accounts-after-open-source-group-scrapes-86-million-songs-from-platform?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.

Microsoft has denied any plans to rewrite Windows 11 using AI and Rust after a LinkedIn post from one of its top-level engineers sparked a wave of online backlash by claiming the company's goal was to "eliminate every line of C and C++ from Microsoft by 2030."

Galen Hunt, a principal software engineer responsible for several large-scale research projects at Microsoft, made the claim in what was originally a hiring post for his team. His original wording described a "North Star" of "1 engineer, 1 month, 1 million lines of code" and outlined a strategy to "combine AI and Algorithms to rewrite Microsoft's largest codebases." The repeated use of "our" in the post led many to interpret it as an official company direction rather than a personal research ambition.

Frank X. Shaw, Microsoft's head of communications, told Windows Latest that the company has no such plans. Hunt subsequently edited his LinkedIn post to clarify that "Windows is NOT being rewritten in Rust with AI" and that his team's work is a research project focused on building technology to enable language-to-language migration. He characterized the reaction as "speculative reading between the lines."

[ Read more of this story ]( https://tech.slashdot.org/story/25/12/24/1819240/microsoft-says-its-not-planning-to-use-ai-to-rewrite-windows-from-c-to-rust?utm_source=atom1.0moreanon&utm_medium=feed ) at Slashdot.