A Reddit bot drove me insane

https://bear-images.sfo2.cdn.digitaloceanspaces.com/posthuman/post-1.webp
A Reddit post about online despair is revealed to be a bot's attempt to sell AI-illustrated books through affiliate marketing. The bot's post triggers engagement and comments from other users, possibly also bots, in a cycle of automated interactions.

Open guide to equity compensation

https://opengraph.githubassets.com/a710830220eb2e35e1992688fd44074ea4f67b95bbdb1b676b1dd6560a417c16/jlevy/og-equity-compensation
A new edition of the holloway guide to equity compensation explains the basics. the guide is written by tax attorneys, corporate lawyers, and other professionals. if you're an employee, some of these may apply to you. it's worth discussing these terms with your company to be sure you’re on the same page. this guide was originally published in the spring 2013 issue of hollow & co., cnn.com. to ...

Everything wrong with MCP

https://substackcdn.com/image/fetch/w_520,h_272,c_fill,f_auto,q_auto:good,fl_progressive:steep,g_auto/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8c7fff6f-7ceb-46c9-9546-b63580436a3e_844x638.png
The Model Context Protocol (MCP) has grown rapidly but has several vulnerabilities and limitations, including security issues, data leakage, and unintended consequences. These issues can be exacerbated by the increasing autonomy of LLM-powered agents and the lack of understanding of LLM limitations, making it essential to address these problems through protocol design, application education, ...

BPS is a GPS alternative that nobody's heard of

https://www.jeffgeerling.com/sites/default/files/images/bps-demo-booth-empty.jpeg
The user attended the NAB show to learn about broadcast timing and found a demo on BPS, a new timing standard for ATSC 3.0, using GPS and TV signals for accurate timing. They also discovered ASUS's Intel motherboard with built-in PPS connectors for syncing with TGPIO on Intel CPUs.

Experimental release of GrapheneOS for Pixel 9a

https://grapheneos.social/system/cache/preview_cards/images/000/094/621/original/216ef0c32babb622.png
The Pixel 9a's initial experimental release is now available for CLI and web install via https://staging.grapheneos.org/. A first update from the initial release to 2025041201 has no changes beyond build date and number.

The dark side of the Moomins

https://dl6pgk4f88hky.cloudfront.net/2025/04/09/202515Moominsmain.jpg
Tove Jansson created the Moomins, a family of creatures, in her 1939 book "The Moomins and the Great Flood" during Finland's Winter War. The series explores themes of displacement, anxiety, and the search for home, reflecting Jansson's own life and emotions.

Whenever: Typed and DST-safe datetimes for Python

https://opengraph.githubassets.com/37fd6f8c4983468f5237b1f40eb3eaac8caf37ad926868afb83a9c872663db00/ariebovenberg/whenever
Whenever is a Python library that helps write correct and type-checked datetime code. It's faster than other third-party libraries and addresses issues with Python's standard datetime library.

Show HN: I made a free tool that analyzes SEC filings and posts detailed reports

Major US companies reported strong first-quarter 2025 results, driven by growth in various sectors. Earnings and revenue exceeded expectations for many firms, including Morgan Stanley, JPMorgan Chase, and Bank of New York Mellon.

Why Fennel?

Lua is a powerful, simple, and fast language with a small footprint, but it has some shortcomings. Fennel is an alternate notation for Lua that helps avoid common pitfalls and adds features like Lisp syntax, better variable handling, and destructuring.

Implementing DeepSeek R1's GRPO algorithm from scratch

https://opengraph.githubassets.com/bc4c4ea37e65bec08227431788504a393472e7c0b8cc58124cf8d0853eb18bfc/policy-gradient/GRPO-Zero
GRPO training with minimal dependencies uses PyTorch and tokenizers for tokenization. It trains Qwen2.5 models on the CountDown task with rewards for format and answer correctness.

Math 13 – An Introduction to Abstract Mathematics [pdf]

Math 13 was created by the late howard tucker as a traditional discrete mathematics course. it is often straightforward to write down reasonable first and last steps of proof - this step is usually the longest in the proof-writing process. if you are unsure how to start, revisit that result and the rest of section 2.3. you should be able to prove this yourself, since the lemma is just special ...

How much oranger do red orange bags make oranges look?

https://alexanderell.is/posts/orange/orange-3-without.jpeg
The author experimented with digital math to see how a red mesh bag affects the perceived color of oranges. The results showed that the bag adds warmth to the color, making it appear more orange, but the actual average pixel value is more brown than expected.

Writing my own dithering algorithm in Racket

https://amanvir.com/_app/immutable/assets/thumbnail.61511ec1.png
The user built a device called Guten that prints a custom newspaper with black and white images, leading to the need for image dithering to convert colorful images to black and white. The user implemented a new dithering algorithm in Racket that combines elements of Atkinson and Floyd-Steinberg algorithms to achieve a happy medium between contrast and blown-out areas.

Problems with Go channels (2016)

https://www.jtolio.com/images/wat/darth-helmet.jpg
The author argues that Go's channels are not as useful as they seem and can lead to problems such as goroutine leaks and deadlocks, and that traditional synchronization primitives like mutexes and condition variables are often better. The author proposes several improvements to the Go channel API, including directionally-typed channels, garbage collection for unused channels, and the ability ...

Skywork-OR1: new SOTA 32B thinking model with open weight

https://raw.githubusercontent.com/SkyworkAI/Skywork-OR1/main/assets/skywork-or1-math-7b-multi-stage.png
We release the Skywork-OR1 series of open reasoning models, including math and code reasoning models trained with large-scale rule-based reinforcement learning. The models are available on GitHub and a Notion Blog shares training recipes and experimental results.

Wasting Inferences with Aider

https://substackcdn.com/image/fetch/w_520,h_272,c_fill,f_auto,q_auto:good,fl_progressive:steep,g_auto/https%3A%2F%2Fsubstack-video.s3.amazonaws.com%2Fvideo_upload%2Fpost%2F161210556%2Fa5e8ebd3-3e38-4ccb-8d3b-ae2b02eb5af0%2Ftranscoded-00001.png
The article discusses using multiple AI attempts to fix a bug in a Rails Todo app, leveraging different LLMs and comparing results. This "Waste Inferences" approach is cheap and automatable, suggesting it can scale to complex scenarios.

Quick Primer on MCP Using Ollama and LangChain

If you had invested the same amount at a 5% annual interest rate compounded annually, your money would grow to $107.20 ($100 * (1 + 0.05)1) after one year. ollama is able to execute shell commands on the linux desktop, but not in production environments - it's purely for demonstration purposes! mcp.execute('shellcommandexecutor

How to not build a two stage model rocket

https://755459895-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FRA4M4jXg9Me4sjVHIEMe%2Fuploads%2FkGy4G1S7wG3BCZOJxKsI%2Ffile.excalidraw.svg?alt=media&token=da7f5755-3d1d-499e-998e-7ac617a97bac
The writer shares their first blog post about a failed two-stage rocket launch, Venessa, which was an experiment to learn stage separation.

Don't sell space in your homelab (2023)

https://grumpy.systems/grumpy.jpg
Someone wants to sell extra home server space to others, but they'll face many challenges, including hardware, internet, and legal issues. They'll need to consider security, backups, and customer support to run a successful hosting operation.

Half the men in Seattle are never-married singles, census data shows

Seattle men have hit a milestone with 50.4% of them aged 15 and older never being married, a first for the city. The trend is consistent across the US, with men tending to marry later than women and having a shorter life expectancy.

Exwm: Emacs X Window Manager

https://opengraph.githubassets.com/8e1893805865eef54af661a3c7cec827ae1815cbf920bbc080f2b7433bfb3b82/emacs-exwm/exwm
EXWM (Emacs X Window Manager) is a full-featured tiling X window manager for Emacs built on top of XELB. Please check out the screenshots to get an overview of what EXWM is capable of, and the user guide for installation instructions and a detailed explanation of its usage.

Compute's Gazette Magazine Returns After 35 Yrs, Will Focus on Retro Computing

https://www.computesgazette.com/wp-content/uploads/2025/04/aidev.jpg
Pre-Order The First ALL NEW Issue of Compute!’s Gazette published in 35 years! BIG NEWS is coming for retro computing in July, 2025 – don’t miss it! Explore a treasure trove of articles, tips, and stories celebrating the golden age of computing and beyond.

New urinal designs

https://cdn.mos.cms.futurecdn.net/CEvS4VabMdKmgccV4H9avR.png
Scientists have proposed a new urinal design that reduces urine spillage by 99.6% and could save 10 million liters of water daily. The design, called Nautilus, is ideal for public restrooms and could improve hygiene and accessibility.

Making SNES ROMs using C#

To continue, log in to your Reddit account or use your developer tokenIf you think you've been blocked by mistake, file a ticket below and we'll look into it.

My imaginary children aren't using your streaming service

https://shkspr.mobi/blog/wp-content/uploads/2021/02/Who-is-watching-Netflix.jpg
The user is frustrated with streaming services constantly asking to create child accounts, even if they don't have children. They think this is annoying and unnecessary, especially for those who have experienced child loss or fertility issues.

33-year-old AmigaOS for Commodore computers gets an unexpected update News

https://cdn.mos.cms.futurecdn.net/gZw6Lvw6AuuAMdwKhdKbNf.jpg
Hyperion Entertainment released AmigaOS 3.2.3 with over 50 fixes and enhancements, continuing work on the classic Motorola 680x0 operating system. The update is free for AmigaOS 3.2 owners and supports classic 68K Amigas with Arm accelerators.

A Farewell to the ArcoLinux University

A developer is stepping away from the ArcoLinux project after 8 years due to aging and decreased energy. The project will continue with transition packages to convert ArcoLinux systems to Arch Linux.

Are Plants Farming Us?

The website is temporarily blocked due to security reasons after a suspicious action was detected. Please email the site owner with the Cloudflare Ray ID and details of the action that triggered the block.

"Adulting" courses in America

https://www.economist.com/cdn-cgi/image/width=1424,quality=80,format=auto/content-assets/images/20250412_CUD001.jpg
Adulting courses in America teach basic life skills like sewing and threading a needle. Austin Community College offers a free "Adulting 101" course to help people learn essential life skills.

Cross-Entropy and KL Divergence

https://eli.thegreenplace.net/images/2025/distrib-1-0s.png
Cross-entropy is a measure of difference between two probability distributions used in machine learning to compute loss for classification tasks. It's non-negative and useful for tracking training loss, but KL divergence is more useful for comparing distributions due to its symmetry.

US tech tariff exemption may only be temporary, says Lutnick

https://www.ft.com/__origami/service/image/v2/images/raw/https://barrier-page-components.s3.eu-west-1.amazonaws.com/assets/images/us_election_2024/feature_countdown.png?source=next-barrier-page
The Financial Times offers a free guide to Trump's second term and US politics with impartial coverage. Subscribe for digital access to quality journalism and expert analysis with a 20% discount for paying upfront.

Why Pascal is not my favorite programming language (1981) [pdf]

A tricky Commodore PET repair: tracking down 6 1/2 bad chips

https://static.righto.com/images/pet/garbage-screen-w500.jpg
The user restored a 1977 Commodore PET computer, which had multiple bad chips, including two ROMs and four RAMs, but the 6502 processor itself was fine. After replacing the faulty chips and reprogramming the ROM, the user was able to get the PET to run and even created an animated graphical pattern using a program from their teenage years.

AMD NPU and Xilinx Versal AI Engines Signal Processing in Radio Astronomy (2024) [pdf]

Institutions involved are ASTRON, Otto-von-Guericke University, University of Twente, and Max Planck Institute for Radio Astronomy. AI Engine and FIFO have 2 stream inputs and 32/128 bit read capabilities.

Hunger shifts attention towards less healthy food options, study finds

https://scx1.b-cdn.net/csz/news/800a/2025/junkfood.jpg
New research suggests that people who are hungry prioritize tastiness over healthiness in their food choices, leading to poor dietary decisions. Hunger shifts attention towards less healthy food options by making participants focus more on visual appeal and less on nutritional information.

Tesla Releases Stripped RWD Cybertruck: So Much Worse for Not Much Less Money

https://www.jalopnik.com/img/gallery/tesla-releases-stripped-out-rwd-cybertruck-that-is-so-much-worse-for-not-much-less-money/intro-1744396046.jpg
Tesla introduced a rear-wheel-drive Cybertruck with a starting price of $71,985, a major downgrade from the original promise of under $40,000. The base model lacks many features found in higher-end Cybertrucks, including adaptive air suspension and premium interior options.

Typographic Pictures Composed Entirely of Brass Rule (2024)

https://blog.glyphdrawing.club/assets/Dl3YTrnWD3-300.jpeg
Typographer valto malmiola experimented with pictorial typesetting as early as 1933. he used a manual half-toning process by plotting the reference picture into tonal values, piece by piece, with brass rule - essentially putting together the image based on the picture, haavi explains. this new style garnered attention beyond germany, and inspired other typesetters, such as julia

Laser Launch into Orbit

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_soX81fi0DbqU6CIU2_NvSdfbkWtj3JNpst4dnGhjdS4LLKgYA5cJpt4SeNVfalZ1xS4aO6hjDBMK5DCD0xxITG8uVXnSpJyIfk2BEKOu46aBsOXy7NJK-fPWWKI0C5sL0mCl3R4w1A5i/s640/lightcraft15.jpg
Ablative laser propulsion uses the force of explosively heated material as thrust. a single-stage-to-orbit, fully recoverable laser-thermal rocket is cheaper in the long term compared to staging two stages, says robert wilkinson of ufos based in california. modular lasers have been designed to 50% efficiencies and gigawatt-level pulsed power levels

Using bad hardware: why I work in the terminal (2024)

User uses underpowered hardware for programming with a workflow based on Linux, i3wm, Neovim, and Alacritty. This setup is portable, lightweight, and comfortable to use on various machines.

How to repair the parts that explode in Lenovo Yoga laptops (2019)

https://adammunich.com/wp-content/uploads/2019/09/20190813_232604-1600x1200.jpg
Lenovo Yoga laptops from the "900", "920", "930", and "940" series have a design defect causing power circuitry failure. The company refuses to recall the issue, leaving customers with broken audio and no affordable replacement parts.

Regime Change in the West

https://www.lrb.co.uk/storage/social_image/images/9/6/7/5/30575769-1-eng-GB/8fd77330a19a-anderson-web.jpg
Neoliberal regimes have not been successful in restoring investment to levels of the postwar era in the west, says aaron miller. he says it is socio-economic inequalities, not weakening of ethno-national boundaries, that have spurred left populism into being. how is the deep state, organised in every western country for imperial war – clandestine or overt? millier:

Significant performance improvements with Edge 134

https://pub-d00f534024b04d0e8036586fc78a41fa.r2.dev/sites/33/2025/04/speedometer-30-edge-1.png
Microsoft Edge version 134 is up to 9% faster than previous versions, with improvements in real-world performance and core metrics. Try Edge and provide feedback to help us improve.

Universal basic income: German experiment bring surprising results

https://www.ctvnews.ca/resizer/v2/H7UPYWESURDNPMPCFVSLVOXW4Q.JPG?smart=true&auth=ab4f3166160a76d788db5ef9c058e4140fa4a07923b4de22e0afb5f35ee120dd&width=2000&height=1125
A German experiment has found that people are likely to continue working full-time even if they receive no-strings-attached universal basic income payments.

Revolt brews against RFK Jr. as experts pen rally cries in top medical journal

https://cdn.arstechnica.net/wp-content/uploads/2025/03/GettyImages-2201503706-640x427.jpg
Health experts criticize Robert F Kennedy Jr for spreading misinformation as top health official, calling for colleagues to defend evidence-based medicine. They argue his actions threaten public trust in science and medicine, requiring health experts to stand up against misinformation.

The self-castrated hatmaker who killed John Wilkes Booth (2015)

https://www.washingtonian.com/wp-content/uploads/2015/04/20150410.Lincoln_lede-995.jpg
Boston Corbett was a US soldier who killed John Wilkes Booth, the assassin of President Abraham Lincoln, in a tobacco barn in Virginia in 1865. Corbett, a fervent Christian, defied orders to take Booth alive and shot him, claiming God had directed him to do so.

RNG and Cosine in Nix

https://unnamed.website/img/kublai.png
NixOS is an immutable Linux distribution with a declarative configuration system using the Nix programming language, but it lacks a built-in random number generator. A user implemented a random number generator using Nix, overcame caching issues, and even implemented the cosine function using infinite linked lists for fun.

Hunter-gatherer sea voyages extended to remotest Mediterranean islands

https://media.springernature.com/w215h120/springer-static/image/art%3A10.1038%2Fs41598-023-50294-y/MediaObjects/41598_2023_50294_Fig1_HTML.png
The maltese archipelago is a small island chain that is among the most remote in the mediterranean. the 2019 test excavation targeted square m2, with the expanded trench 4 spanning squares j–n and 2–6 in northeast malta. forty-nine samples of p. turbinatus were dated for this purpose. radiocarbon dates indicate substantial sediment redeposition, with very old dates near the surface and ...

Facebook is just Craigslist now

https://cdn.theatlantic.com/thumbor/4pYuUGRrFI6rzRNnEM8QyoJer4Y=/0x0:2000x1125/960x540/media/newsletters/2025/04/marketplace_daily_1/original.jpg
The author reflects on Facebook Marketplace, a platform that has become a major part of the Facebook universe, with its own set of issues and benefits. The author notes that Facebook's true purpose is to facilitate transactions, not connections.

Amazon Turned Drivers into First Responders in Europe Experiment

https://assets.bwbx.io/images/users/iqjWHBFdfxIU/iuh0WtBmnSJM/v1/-1x-1.webp
Amazon equipped delivery vans in Europe with defibrillators to aid heart-attack victims. The pilot program, called Project Pulse, tested the devices in Amsterdam, London, and Bologna.

What is GNU Radio?

https://wiki.gnuradio.org/images/thumb/8/8d/FunCube_2_meter_NB_FM_fg.png/750px-FunCube_2_meter_NB_FM_fg.png
GNU Radio is a free, open-source software framework for signal processing that enables users to design, simulate, and deploy real-world radio systems. It provides a modular, flowgraph-oriented framework with a comprehensive library of processing blocks for various applications.

Microsoft Prepares for New Round of Layoffs in May 2025

https://media.assettype.com/thebridgechronicle%2F2025-04-11%2Fiz4z1s2s%2Fmicrrrrr.png?w=480&auto=format%2Ccompress&fit=max
Microsoft plans layoffs in May 2025 to streamline its structure by reducing middle management and non-technical roles. The goal is to improve efficiency and increase the ratio of engineers to non-engineers in project teams.

South Korea Is over [video]

Audiobooks vs. Printed Books: a debate as a reader and an author

https://substackcdn.com/image/fetch/w_520,h_272,c_fill,f_auto,q_auto:good,fl_progressive:steep,g_auto/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F554a3da8-c259-4623-925a-95919b52cb85_1080x800.jpeg
The author started writing an essay about audiobooks after re-listening to Tomorrow and Tomorrow and Tomorrow by Gabrielle Zevin. They decided to publish it, realizing readers want to hear more from them directly about life, creativity, and opinions.

Show HN: Crystal, the most accurate U.S. gov't data search tool

https://askcrystal.info/images/crystal-icon.png
The most accurate government data search tool

Osprey – Browser extension that protects you from malicious websites

https://camo.githubusercontent.com/e17fa39ab7442f818b4b5f6757289f35490320ad1503336adc251344a03a41a5/68747470733a2f2f692e696d6775722e636f6d2f4b386d3131474e2e706e67
If the APIs report that the page is safe to visit, Osprey caches the result for 24 hours. It will also be cached if you click 'Continue anyway' or 'Add hostname to allowlist' on a blocked site. As long as a URL is cached, no new network requests will be made for it. The only data the APIs receive is the stripped-down URL, your user agent, and your IP address.

Show HN: Gatehouse-TS – TypeScript port of Rust's authorization policy framework

https://opengraph.githubassets.com/f647c5ea1b4dfce226223cc1f9bd86c3a5b915a85cb5da5fce7355bc90404633/9Morello/gatehouse-ts
Gatehouse-TS is a flexible authorization library combining RBAC, ABAC, and ReBAC policies. It allows easy policy creation and evaluation with a simple API.

DragonFlyBSD Lands "Next-Gen" Disk Encryption Code

https://www.phoronix.com/assets/categories/bsd.webp
DragonFlyBSD has merged a next-generation DM-crypt code for disk encryption called dm_target_crypt_ng. This new implementation is compatible with Linux's dm-crypt and offers improved interactivity and performance.

100th Anniversary of the Great Gatsby: The Chicago Connection

https://i0.wp.com/www.chicagotribune.com/wp-content/uploads/2025/04/ctc-ginevra-6jpg-CT0136735813-e1743692708944.jpg?fit=620%2C9999px&ssl=1
F. Scott Fitzgerald's "The Great Gatsby" marks the 100th anniversary of its publication, drawing from his real-life experiences. The novel's characters, including Daisy Buchanan, were inspired by Fitzgerald's love affair with Ginevra King.

Few build Hypervisors. We're one of them

https://virtualize.sh/blog/content/images/size/w960/2025/04/engineplane.jpg
The author argues that companies claiming to master a technology stack often just use it, not truly understand it. True mastery requires building and maintaining the stack, not just using it.

Why Our Brains Crave Ideology

https://assets.nautil.us/sites/3/nautilus/ideology-QA_HERO-scaled.jpg?q=65&auto=format&w=1600&ar=3:1&fit=crop
Political neuroscientist Leor Zmigrod explores how ideologies affect the human brain and body, revealing that they can be both seductive and injurious to our capacity for flexible thought. By understanding the neurobiological origins of ideological thinking, Zmigrod aims to help people become more open-minded and resistant to ideological solutions, promoting a more authentic and free way of ...

Tech workers are leaving notes in robot taxis seeking workers and lovers

Mushroom A.stiptica Bitter Compounds and Human Taste Receptor Activation

Bitter taste perception cautions humans against the ingestion of potentially toxic compounds. However, current knowledge about natural bitter substances and their activation of human bitter taste receptors (TAS2Rs) is biased toward substances from flowering plants, whereas other sources are underrepresented. Although numerous mushrooms taste bitter, the corresponding substances and receptors ...

How to Flatpack Programs [video]

Show HN: BSE – Semantic Zip Engine for Text, Image and Audio

BSE is a semantic compressor transforming natural inputs into low-dimensional structured representations for LLMs. It was built in 48 hours by a solo dev and their fox partner, seeking feedback on improvements and concerns.