What an unprocessed photo looks like

https://maurycyz.com/misc/raw_photo/hist1.png
The user processed a Christmas tree photo from raw sensor data, applying demosaicing and non-linear curve correction to improve color and brightness. However, the process introduced some issues, such as a green cast, which were resolved with proper white-balance and scaling.

Calendar

https://www.neatnik.net/calendar/card.jpg
A simple printable calendar with the full year on a single page

Growing up in “404 Not Found”: China's nuclear city in the Gobi Desert

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The author grew up in a secret Chinese nuclear city called 404 in the Gobi Desert, built by elite scientists and laborers in 1958. The city was a utopian bubble with its own department stores, cinemas, and zoo, but its dark side included radioactive materials and isolation.

Replacing JavaScript with Just HTML

https://www.htmhell.dev/adventcalendar/2025/27/accordion-expanding-content.gif
JavaScript is being replaced by native HTML and CSS methods for simpler tasks to reduce user download and improve performance. HTML elements like details and input with datalist can replace JavaScript accordions and dropdowns.

Last Year on My Mac: Look Back in Disbelief

https://eclecticlight.co/wp-content/uploads/2025/12/understain4.jpg?w=1024
The author is disappointed with macOS Tahoe's Liquid Glass interface changes, citing issues with rounded corners, inconsistent design, and excessive transparency. The new design makes it harder to distinguish controls, icons, and content, leading to visual clutter and accessibility problems.

Fathers’ choices may be packaged and passed down in sperm RNA

https://www.quantamagazine.org/wp-content/uploads/2025/12/Epigenetic-Sperm-cr-Weerasekera-Lede.webp
Researchers have found that sperm cells carry more than just DNA, including molecules that convey information about a father's fitness, such as diet and stress levels, to his offspring. These non-DNA transfers may influence genomic activity and exert control over the embryo's development and the adult it will become.

Learn computer graphics from scratch and for free

https://www.scratchapixel.com/home-images/blog-card.png
This section provides reference material on computer graphics and image processing. It covers topics like image file formats and color management.

Building a macOS app to know when my Mac is thermal throttling

https://stanislas.blog/2025/12/macos-thermal-throttling-app/mac-throttle_hu_fa2e75ce3cb92b4b.png
The user built a menu bar app called MacThrottle to monitor thermal throttling on their Apple Silicon MacBook Air, using a combination of powermetrics and Darwin notifications to track the thermal state. The app displays a thermometer icon and a graph showing thermal history, and can alert the user when the state changes, helping them identify when their Mac is overheating.

Stepping down as Mockito maintainer after ten years

https://opengraph.githubassets.com/9686c3c6bc3f1b78ea4e4f6db586546209adf10451ccd8d414dbede62eb369c4/mockito/mockito/issues/3777
The current Mockito maintainer is stepping down after 10 years, citing a decade milestone as a good time to pass on maintainership due to personal and project-related reasons. The maintainer will ensure a smooth transition and is hopeful that others will take on the challenge to improve Mockito for the open source community.

CEOs are hugely expensive. Why not automate them? (2021)

https://dl6pgk4f88hky.cloudfront.net/2021/06/gettyimages-838665582-scaled.jpg
Executive pay is rising, with some CEOs earning 2,605 times the median income of their employees. Companies may need to ask higher-paid staff to make sacrifices or consider automating top-level jobs.

Software engineers should be a little bit cynical

The author argues that being a cynic is necessary for software engineers to think clearly about how organizations work and avoid idealistic views that are overly simplistic. They believe that engineers should engage in the political process to make positive changes in large tech companies.

Unity's Mono problem: Why your C# code runs slower than it should

https://marekfiser.com/blog/mono-vs-dot-net-in-unity/img/MonoVsDotNet-thn-w1200-h600.551.jpg
Unity's Mono runtime is slow compared to modern .NET, with a 2-3x performance gap in some benchmarks. Modern .NET's JIT compiler optimizes code better, hoisting invariant work and scalarizing tiny value types, resulting in faster execution.

MongoBleed Explained Simply

https://substackcdn.com/image/fetch/$s_!USk9!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8c4b36c-c9bb-4fa1-b454-8a489b1433ab_1170x706.png
A recently uncovered MongoDB vulnerability, CVE-2025-14847, allows attackers to read uninitialized heap memory. It affects all MongoDB versions since 2017 and can be exploited with no authentication needed.

PySDR: A Guide to SDR and DSP Using Python

https://pysdr.org/_images/fft_logo_wide.gif
Software-defined radio (SDR) refers to using software to process RF signals traditionally done by hardware. An SDR is a device that receives RF signals and sends digitized samples to a computer for processing or recording.

As AI gobbles up chips, prices for devices may rise

https://media.npr.org/assets/img/2021/09/07/jwr-pic_sq-328878fd008a849dd85d5979088334103fccc7e8.jpg?s=100&c=85&f=jpeg
A shortage of RAM chips due to high demand from AI data centers is causing prices to rise. Manufacturers are paying 50% more for RAM chips this quarter and expect prices to rise another 40% in the coming quarter.

Hungry Fat Cells Could Someday Starve Cancer

https://www.ucsf.edu/sites/default/files/styles/article_feature_banner__image/public/2025-02/fat-organoid-banner.jpg
Researchers at UC San Francisco used CRISPR to turn white fat cells into "beige" fat cells that consume calories to fight cancer. The approach, funded by NIH, uses engineered fat cells to deprive tumors of nutrients, showing promise in treating various types of cancer.

AI Slop Report: The Global Rise of Low-Quality AI Videos

https://www.kapwing.com/blog/content/images/2024/08/IMG_8982-1.jpg
AI-generated content, known as AI slop, is flooding YouTube with low-quality videos, making it hard for talented creators to get seen. Top trending AI slop channels have millions of subscribers and views, with some earning millions of dollars per year.

Functional programming and reliability: ADTs, safety, critical infrastructure

https://github-production-user-asset-6210df.s3.amazonaws.com/10719452/490148024-7ae9252f-d4eb-47ba-9f4d-626de8a42b5b.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAVCODYLSA53PQK4ZA%2F20251228%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20251228T011418Z&X-Amz-Expires=300&X-Amz-Signature=be29f97fd134dde6b2ba8fcf5192bb9c21da90510ee15b8981a19c625ffb86da&X-Amz-SignedHeaders=host
Functional programming and Algebraic Data Types help prevent bugs by modeling domain rules in types, making invalid states unrepresentable and reducing production incidents. By using pure functions, immutability, and smart constructors, reliability is designed into the system, making it safer and more predictable.

No, it's not a battleship

https://www.navalgazing.net/attach/DefiantSpecs.jpg?v=1766498855.jpg
The Trump Administration's proposed "battleship" is actually a large missile cruiser with a confusing design, lacking armor and with guns as secondary weapons. It's driven by Trump's desire for visually appealing ships and lacks justification for its size.

Researchers discover molecular difference in autistic brains

https://ysm-res.cloudinary.com/image/upload/c_limit,f_auto,h_630,q_auto,w_1200/v1/yms/prod/57bd75f5-dd42-4a47-a99f-35c660e446a0
Now, we’ve found something that is meaningful, measurable, and different in the autistic brain. While many neurodivergent people aren’t hindered by autism and may not need or want medication, novel treatments could help those on the spectrum that experience symptoms that affect their quality of life.

C++ says “We have try... finally at home”

https://devblogs.microsoft.com/oldnewthing/wp-content/uploads/sites/38/2019/02/ShowCover.jpg
Control structures for executing code when control leaves a block exist in Java, C#, Python, and JavaScript but not C++. C++ uses destructors for this purpose but has varying behavior when exceptions occur.

62 years in the making: NYC's newest water tunnel nears the finish line

https://s7d2.scene7.com/is/image/TWCNews/_Roger_PKG_Water_Tunnel?wid=1250&hei=703&$wide-bg$
New York City is building a massive water tunnel, Tunnel No. 3, to ensure clean water supply for generations. The project, started in 1970, is expected to be completed by 2032 and will allow for long-term repairs to the city's aging water infrastructure.

Dolphin Progress Report: Release 2512

https://dolphin-emu.org/m/user/blog/hybridxfb/stitching-RS2_thumb.jpg
Dolphin's latest release includes new features such as frame presentation options, a new local mode Broadband Adapter, and improved latency reduction. The update also includes patches for various games to improve emulation performance and fix issues caused by uncapped frame rates.

Dialtone – AOL 3.0 Server

https://dialtone.live/MACOS.jpg
A fan-built server recreates AOL's 1990s P3 protocol for a retro internet experience. The Dialtone server, powered by Grok AI, allows users to chat and explore the early internet without dial-up or downloads.

Spherical Cow

https://img.gs/czjpqfbdkz/full/https://raw.githubusercontent.com/Libbum/spherical-cow/master/examples/objects/cow_output.jpg?raw=true
A dairy farm sought help from academia to boost milk production, and a team of professors used the advancing fronts algorithm to find a solution. The algorithm was initially developed for sphere packing in space habitats and has real-world applications in cutting tool design and inflatable space habitats.

Remembering Lou Gerstner

https://filecache.mediaroom.com/mr5mr_ibmnewsroom/178581/gerstner%20%28500x500%29.JPG
IBM Chairman and CEO Arvind Krishna announced the passing of former Chairman and CEO Lou Gerstner. Gerstner led IBM from 1993 to 2002, transforming the company through client-focused leadership and innovation.

Why I Disappeared – My week with minimal internet in a remote island chain

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The author spent a week in the Galapagos Islands without internet and realized that most news is noise, created for clicks rather than substance. They plan to create a new website focused on unique, meaningful stories, free from the pressures of social media and clickbait journalism.

Global Memory Shortage Crisis: Market Analysis

https://www.idc.com/wp-content/uploads/2025/12/image.png
A global semiconductor memory chip shortage is causing DRAM prices to surge due to high demand from AI data centers. This shortage may lead to a 2.9-5.2% contraction in the global smartphone market and a 4.9-8.9% decline in the PC market in 2026.

2 in 3 Americans think AI will cause major harm to humans in the next 20 years [pdf] (2024)

The survey asked about artificial intelligence, including control over AI use, AI job impact, AI trust, and designer consideration.

Tell HN: Google ignores English searches and forces localized results

Google Search is prioritizing localized results in native language despite English settings. User location and account language override explicit query language, causing translation and limited English results.

Loss of moist broadleaf forest in Africa has turned a carbon sink into source

https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41598-025-27462-3/MediaObjects/41598_2025_27462_Fig1_HTML.png
Africa's forests have transitioned from a carbon sink to a source between 2010 and 2017 due to increased biomass losses. Deforestation in tropical moist broadleaf forests is the primary driver of biomass loss, with gains in savanna biomass partially offsetting these losses.

Delete LinkedIn – you'll have zero fucking regrets (2021)

https://img-cdn.tnwcdn.com/image?fit=684%2C248&url=https%3A%2F%2Fs3.eu-west-1.amazonaws.com%2Ftnw.events%2Fhardfork-2018%2Fuploads%2Fvisuals%2FConference-Nebula.png&signature=1bb74f9f4b26d485f2fe5f2b8add03f8
The author is rejecting LinkedIn due to its inauthentic and sales-driven nature, preferring platforms that foster genuine connections and meaningful interactions. They value quality over quantity, prioritizing engagement with a small group of people who care over superficial networking with thousands on LinkedIn.

How to complain (2024)

Avoid using jargon and absolute statements in writing, instead use descriptions and relative comparisons to make arguments more accessible. A complaint should have a good reason for existing and be written in a non-acerbic tone with empathy.

Show HN: Pion SCTP with RACK is 70% faster with 30% less latency

RACK improves SCTP's throughput by 71% per CPU second and reduces latency by 25% in various test profiles. RACK's time-based loss detection and Tail Loss Probes reduce spurious retransmissions and improve SCTP's efficiency, making it suitable for real-time applications like online multiplayer games and cloud gaming.

Designing Predictable LLM-Verifier Systems for Formal Method Guarantee

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
Researchers developed a formal framework for integrating Formal Verification tools with Large Language Models, providing provable guarantees for termination in multi-stage verification pipelines. The framework offers predictable resource planning and performance budgeting for safety-critical software.

Slaughtering Competition Problems with Quantifier Elimination (2021)

https://grossack.site/assets/images/default_og.png
The author wants to discuss using quantifier elimination to solve inequalities on MSE, but feels it's not suitable for the platform.

Deathbed Advice/Regret

The author dislikes deathbed regrets turned into advice, finding them cheap and unhelpful. They value advice from people who acted on their experiences, not just regrets.

Keep the Robots Out of the Gym

https://danielmiessler.com/images/keep-robots-out-gym-v35.webp
User recommends using AI for manual labor tasks where output is key, not skill-building like gym exercises. They're building a system with AI to maintain cognitive skills by having AI assist and tutor them.

Ubuntu 26.04 LTS – The Roadmap

Ubuntu 26.04 LTS focuses on stability, refinement, and user experience with key themes including GNOME 50 integration, Wayland improvements, and secure fingerprint authentication. The release also brings centralized software management, improved accessibility features, and enhanced enterprise capabilities.

Hacker News Made of Primes

new | past | posts | mersenne | germain | fermat | palindrome | pk | 2 | 4 | 6 | 8 | 10 | 12 | e≤k² | e<√p | submit Pure Math | Deterministic | API | Security | Legal | Apply to ζ | Contact

The Prison of Financial Mediocrity

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Ask HN: Best Podcasts of 2025?

User discusses favorite podcasts including The Rest is Politics, The Rest is History, and Lex Fridman. They also mention movie-related podcasts and Ed Zitron's BetterOffline as a top choice.

Ask HN: Anti-AI Open Source License?

You want to prevent your open source code from being used to train AI, but no license can legally enforce this due to fair use laws. You could consider a custom license or explicit terms, but it may not be enforceable in all jurisdictions.

Rust errors without dependencies

https://vincents.dev/home.png
The user discusses the complexities of error handling in Rust, citing the need for composability and a universal way to handle errors, and proposes using the standard library to achieve this. They also discuss the importance of context and location data in error messages, and suggest that the Rust community create documents to improve error understanding for new users.

Scientists discover beer bottle in the Mariana Trench (2024)

Dr Dawn Wright was stunned to find the 'irrevocable' damage humans have done to the planet after deep sea discovery.

'PromptQuest' is the worst game of 2025 (trying to make chatbots work)

https://regmedia.co.uk/2023/07/25/shutterstock_dungeon.jpg
The author is hesitant to revisit Zork due to frustration with modern AI chatbots that require obscure syntax and produce inconsistent results. Working with these chatbots feels like playing a frustrating text adventure game called PromptQuest.

Claude Code creator says Claude wrote all his code for the last month

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Fast CVVDP implementation in C

https://repository-images.githubusercontent.com/1108017335/d4d7411b-4902-48bc-a919-713c28a97223
A fast C implementation of CVVDP metric uses 91% less RAM and is 18% faster in wall clock time. It's ~15x more efficient in user time and lacks multithreading support.

Manus AI 100M USD ARR

https://files.manuscdn.com/assets/dashboard/materials/2025/12/17/07bf570e687bbfc6ae5baaf20b4ce3efc1b3334d52120ba25ba1a20f28d4564d.webp
Manus has reached $100M ARR in 8 months, the fastest startup to achieve this milestone, with a total revenue run rate of over $125M. The company is hiring across teams in Singapore, Tokyo, San Francisco, and soon Paris, to build the future of AI.

Shut Up About the Water

https://substackcdn.com/image/fetch/$s_!AJIg!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd744ceb7-ab20-4532-8363-16b5dc5f130d_2456x1252.png
The author is angry at tech experts criticizing AI for environmental harm while being part of companies that profit from ruining society. They argue that these experts' intentions are questionable due to their involvement in companies that dehumanize people.

Show HN: Viral Potential Predictor

https://hn-ph.vercel.app/white.png
A statistical analysis tool that evaluates launch titles against 4M+ historical Hacker News & Product Hunt posts to predict viral potential.

Ask HN: By what percentage has AI changed your output as a software engineer?

User's productivity as a software engineer has increased by about 2x due to AI coding tools, with 10-15% of the improvement attributed to improved dev environments. However, unfamiliar domains and tech stacks can lead to decreased productivity and increased risk due to potential AI-generated mistakes.

Show HN: Phantas – A browser-based binaural strobe engine (Web Audio API)

OPTICAL DRIVING: Set brightness to 100%. Close eyes. Position screen to fill your entire visual field with light.

Nvidia deal a big win for Groq employees and investors

https://images.axios.com/FSI2SR6oeMIu69qKsTqBTwsed1w=/1920x1080/smart/2025/01/07/185953-1736276393554.jpg?w=3840
Groq shareholders will receive payouts tied to a $20 billion deal with Nvidia, with most paid upfront. Remaining Groq employees will receive vested shares and a package for ongoing economic participation.

tc-ematch(8) extended matches for use with "basic", "cgroup" or "flow" filters

https://man7.org/tlpi/cover/TLPI-front-cover-vsmall.png
The tc filter add command uses ematch syntax to match packet data with various conditions such as cmp, meta, nbyte, u32, ipset, and ipt. These conditions can be combined using and or operators to create complex match rules.

Travel agents took 10 years to collapse, developers are three years in

https://martinalderson.com/img/adoption-curves.png
The travel industry was severely impacted by the internet, with US travel agents falling 44% and retail locations dropping 62% by 2021. Software engineering may face a similar fate due to rapid LLM adoption.

Nvidia deal a big win for Groq employees

https://images.axios.com/FSI2SR6oeMIu69qKsTqBTwsed1w=/1920x1080/smart/2025/01/07/185953-1736276393554.jpg?w=3840
Groq shareholders will receive payouts tied to a $20 billion deal with Nvidia, with most paid upfront. Remaining Groq employees will receive vested shares and a package for ongoing economic participation.

The Internet Is a Net Negative

https://kennethreitz.org/static/images/social-card.jpg
The author reflects on the internet's impact, realizing it has commodified information and created a sophisticated system of psychological manipulation. The internet has consumed human attention, relationships, and capacity for deep thought, ultimately making the world worse.