refrax.website
Show HN: Refrax – my Arc Browser replacement I made from scratchhttps://refrax.website/Open the same tab in two browser windows. In Chrome or Safari, you get two unconnected pages. In Arc, one window shows a placeholder. In Zen, it silently creates a duplicate.In Refrax, the browser I built, both windows show the same page updating live. The same web page, in as many windows as you want.This shouldn't be possible. WebKit's WKWebView can exist in exactly one view hierarchy at a time. With macOS 26, Apple added a SwiftUI API separating WebView from WebPage, so you can end up with multiple views referencing the same page. But if you try it, your app crashes. WebKit source code has a precondition with this comment: "We can't have multiple owning pages regardless, but we'll want to decide if it's an error, if we can handle it gracefully, and how deterministic it might even be..."So here's how I did it.CAPortalLayer is an undocumented private class that's been in macOS since 10.12. It mirrors a layer's composited output by referencing the same GPU memory, not copying it. EveryMar 22, 2026 10:52 PM
bing.com
How declined loan analysis can turn more mortgage “no’s” into closingshttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d3ce3b2cd4bc190369bbbb29db4ab&url=https%3A%2F%2Fwww.housingwire.com%2Farticles%2Fhow-declined-loan-analysis-can-turn-more-mortgage-nos-into-closings%2F&c=5919399375026896861&mkt=en-usEvery mortgage lender knows that declined loans represent marketing spend, staff time and operational resources that never convert into funded loans or revenue. Those losses add up quickly in a margin ...Mar 22, 2026 8:36 PM
bing.com
Eric Dailey Jr. leads UCLA to greatness with his energy and his voicehttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d68759b33426fb8119cb465734446&url=https%3A%2F%2Fsports.yahoo.com%2Farticles%2Feric-dailey-jr-leads-ucla-233644013.html&c=13809859755229091951&mkt=en-usLOS ANGELES - Eric Dailey Jr. was UCLA’s hero Friday night against UCF in Round One of the NCAA Tournament, leading the Bruins with 20 points, 12 of which came in the first half as he provided a spark ...Mar 22, 2026 4:36 PM
news.ycombinator.com
Ask HN:35,0 CS background, built real apps with AI, need suggestionhttps://news.ycombinator.com/item?id=47476842I'm 35, married, and have spent 11 years as a central government employee doing work that anybody can do. I'm not bitter about this. It's just the reality of the role, and it's exactly why I'm writing this post. My situation outside of work: a genuinely supportive wife, and about 2-3 hours a day I can carve out for learning and building something meaningful. What I've already done — and why it surprised even me Here's the part that feels almost fraudulent to admit: I have already built and deployed real software. Using AI assistance, I built several PWAs and one hybrid mobile app. They're not toy projects — they're actively being used by my wife and her clinic staff in their day-to-day business operations, right now, live. I did this with zero programming knowledge. I can't write a single line of code. I think the term is "vibe coding," and I'm probably the most unqualified vibe coder alive. But the apps I made work. This experience cracked something open for me. If I could do "that" wMar 22, 2026 12:31 PM
news.ycombinator.com
Ask HN: AI productivity gains – do you fire devs or build better products?https://news.ycombinator.com/item?id=47475859i was rolling my eyes at the hype, but reading about this is totally different from experiencing it. if you have any old repos out there - try it, you might actually be amazed.i'm not sure i buy the long-term "*90% productivity*" claims for complex, legacy enterprise systems, but for the boilerplate, libraries, build-tools, and refactoring? the gain is gigantic. all the time-consuming, nerve-wrecking stuff is mostly taken care of.you start off checking every diff like a hawk, expecting it to break things, but honestly, soon you see it's not necessary most of the time. you just keep your IDE open and feed the "analyze code" output back into it. in java, telling it to "add checkstyle, run mvn verify and repair" works well enough that you can actually go grab a coffee instead of fighting linter warnings.the theory is that what remains is just the logic and ideas. we'll see how that holds up when the architecture gets genuinely tangled. but for now, letting it branch off, create boilerplatMar 22, 2026 9:37 AM
news.ycombinator.com
Skills are quietly becoming the unit of agent knowledgehttps://news.ycombinator.com/item?id=47475832In the last few months agent skills went from a niche Claude Code feature to something every major runtime supports. Anthropic has an official skills repo. OpenAI shipped skills in Codex with a built-in skill-creator. Karpathy talks about "everything is skill issue" and describes writing skills as curricula for agents [1]. The format is converging: a folder with a SKILL.md, optional scripts, optional reference files.What changed is that the models got good enough to follow written instructions reliably. A skill is just a tested workflow in markdown that the agent reads and follows instead of improvising. You can also bundle scripts that the agent runs during the workflow, which covers what most people use lightweight MCP servers for, except the agent can read the script source and extend it.Karpathy talks about an "economy of agents" and says we should stop writing HTML docs for humans and start writing markdown docs for agents [1]. Anthropic just shipped a skill-creator that benchmarkMar 22, 2026 9:32 AM
bing.com
The 20 best websites to discover unique giftshttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d3580975c48cab19f59298672c459&url=https%3A%2F%2Fwww.businessinsider.com%2Fguides%2Fgifts%2Funique-gift-websites&c=2668509361403496268&mkt=en-usYou're currently following this author! Want to unfollow? Unsubscribe via the link in your email. Finding highly personal, one-of-a-kind gifts that your giftee wouldn't expect can be a challenge.Mar 22, 2026 6:00 AM
clifton-topaz.vercel.app
Show HN: Clinical Trial Finder and Rankerhttps://clifton-topaz.vercel.app/hey all. just trying to get the word out about this app i made. It's called Clifton. it's helped me out a lot and so thinking it could help others too. let me know what you think and if you know anyone who might find it useful, please share!it's free and open source (https://github.com/notwopr/clifton)my mom has alzheimers and vascular dementia and i used to keep this incredibly complicated spreadsheet just to keep track of what clinical trials i already reviewed and which ones would actually fit our needs. it was honestly such a pain to maintain and update every few weeks.i wanted a way to find trials where there was a low chance of a placebo, stuff that was actually nearby, and trials that didn't have super invasive diagnostic testing... reading through eligibility criteria on clinicaltrials.gov for hours just to find out a trial is a 4 hour drive away or has a 50% placebo rate is exhausting.so i decided to just build my own thing.hope it helps other people out there too.it's free, bMar 22, 2026 3:57 AM
nasaspaceflight.com
Progress MS-33 set to resume Russian flights to ISS from repaired padhttps://www.nasaspaceflight.com/2026/03/progress-ms33/Just under four months after Soyuz MS-28 launched from Site 31/6 at Baikonur Cosmodrome in… The post Progress MS-33 set to resume Russian flights to ISS from repaired pad appeared first on NASASpaceFlight.com.Mar 21, 2026 11:18 PM
news.ycombinator.com
I made this app 'Mind Influence Lab' for experimenting consciousness hypothesishttps://news.ycombinator.com/item?id=47472145I built an Android app for running structured mind-matter interaction experiments on your own device, modelled on the PEAR Lab methodology. I want to be upfront: the scientific consensus does not support the hypothesis this tests, and I am not claiming otherwise. But the effect size documented in prior literature (Cohen's h ≈ 0.002) is small enough that it cannot be tested in a few sessions, it requires sustained longitudinal data collection. No tool existed for this on a personal device, so I built one. What it does: generates binary sequences from either device CSPRNG (local entropy) or quantum RNG sourced from vacuum fluctuation measurements via Cisco Outshift's API, records six simultaneous environmental sensor channels (magnetometer, barometer, ambient sound, WiFi RSSI, Bluetooth variance), computes z-scores per session and per phase following PEAR's four-phase protocol structure, and stores everything in a local vault for longitudinal analysis. Three protocols test different hypoMar 21, 2026 10:22 PM
kmrjohnson55.github.io
Show HN: The Two by Two Truth Diagramhttps://kmrjohnson55.github.io/truth-diagram/I am diagnostic radiologist with over 40 years experience. In diagnostic testing, many terms are used to describe how well the test detects the disease or disorder. Examples are “sensitivity”, “specificity”, “predictive values”, “odds ratio”, “likelihood ratios” and numerous others. In the literature and medical presentations there is often not much consistency in their use; as a physician listening to or reading research, I was perpetually unclear on how these terms “fit together”. My solution was to invent the visual 2 by 2 diagram, or truth diagram, as a graphical alternative to the standard contingency table used in diagnostic testing (Johnson 1999). The concepts listed above, and many others, are represented graphically, and their inter-relationships can be clearly visualized. Instead of four numbers in a grid, a single rectangle on a coordinate system encodes all four cells of the 2×2 table through its position and shape. Each hemi-axis corresponds to one cell (see below). The veMar 21, 2026 10:03 PM
news.ycombinator.com
Are AI Agents like von Hammerstein's industrious and stupid?https://news.ycombinator.com/item?id=47466679"I divide my officers into four classes; the clever, the lazy, the industrious, and the stupid. Each officer possesses at least two of these qualities. Those who are clever and industrious are fitted for the highest staff appointments. Use can be made of those who are stupid and lazy. The man who is clever and lazy however is for the very highest command; he has the temperament and nerves to deal with all situations. But whoever is stupid and industrious is a menace and must be removed immediately!” ― Kurt von Hammerstein-EquordAt first i was thrilled at the incredible speed of my new coding partner. Chatting with the agent felt like talknig to a real person, which blinded me a bit and made me forget many rational rules of software development. A few refactorings and many learnings later i find resonance in HN where people critizize which at the beginning i was so enthusiastic about.I have this incredibly industrious partner, blazingly fast but mindless and oblivious. Am i the guy HammMar 21, 2026 1:07 PM
bing.com
Emerging Market edges Pavlovian at the Louisiana Derby to earn a likely spot in the Kentucky Derbyhttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d797ee9f042e8a0be1d3d40abaf33&url=https%3A%2F%2Fwww.sfgate.com%2Fsports%2Farticle%2Femerging-market-edges-pavlovian-at-the-louisiana-22089766.php&c=2932176950486239950&mkt=en-usNEW ORLEANS (AP) — Emerging Market galloped around the outside of four horses during the final three furlongs to win the $1 million Louisiana Derby by a head over Pavlovian on Saturday, earning the ...Mar 21, 2026 10:41 AM
news.ycombinator.com
Ask HN: Good minimal hardware to run LLMs and general NNshttps://news.ycombinator.com/item?id=47465676Premise: I have been mostly out of access to the news in the past six months.What is the current state of portable, minimal hardware (not assembled desktop boxes with extra cards) to run LLMs and contemporary NNs (Text-to-Image, Speech-to-Text etc.) in general at decent speed and with an eye to power efficiency?I have read about about boards with shared memory, SoC with NPUs, and about mini-pc from leading brands (that did not run standard Linux though). I do not know if any good solutions are on the market, or if we are still waiting for a leap from future contenders.Edit: not just "power efficiency", but the overall cost, the overall "dollar-per-token" value would be interesting.I am of course more interested in the experience of the community than in rumors.Mar 21, 2026 10:02 AM
bing.com
High school basketball scores: Columbus and St. John’s Vianney Regional win Throne titleshttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8daa7473754cda96025c71d7d4b9a5&url=https%3A%2F%2Fsports.yahoo.com%2Farticles%2Fcolumbus-st-john-vianney-regional-220541093.html&c=17768716390424276762&mkt=en-usA new boys and girls team is sitting on The Throne. St. John’s Vianney Regional Lancers (Holmdel, NJ) and the Columbus Explorers (Miami, FL) are champions of the national prep basketball tournament, ...Mar 21, 2026 3:07 AM
bing.com
How a shady tax preparer’s practices can lead to costly IRS troublehttp://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6a8d7b3420e34629a31ad770d0754eae&url=https%3A%2F%2Fwww.washingtonpost.com%2Fbusiness%2F2026%2F03%2F21%2Ftax-season-preparer-fraud-errors%2F&c=5280753192462740178&mkt=en-usWhen you hand over your taxes to a paid preparer, as over half of Americans do, you may assume they are qualified to understand the intricacies of tax law and get you the biggest refund that the law ...Mar 21, 2026 1:59 AM
science.nasa.gov
How Open NASA Data on Comet 3I/ATLAS Will Power Tomorrow’s Discoverieshttps://science.nasa.gov/open-science/interstellar-comet-3i-atlas-data/The interstellar comet 3I/ATLAS will soon leave our solar system, never to return, but the observations of the comet will live on in NASA’s public data archives. More than a dozen NASA science missions turned their instruments to observe the comet, which is only the third identified object to be visiting our solar system from […]Mar 20, 2026 7:06 PM
github.com
Show HN: Looseleaf – Python notebooks where each cell is a .py filehttps://github.com/BartlomiejLewandowski/looseleafI wanted a notebook that worked like my editor, not the other way around.Jupyter is great but the .ipynb format has always bothered me. It's JSON with embedded code — git diffs are a mess, linters don't see it, and you can't just open a cell in your editor and have things work. There are tools that help (jupytext, nbstripout) but they all work around the format rather than replacing it.Looseleaf takes a different approach: a notebook is just a directory of .py files. Each file is a cell. They run in alphabetical order, so you use numbered prefixes (01_load.py, 02_train.py). One long-running Python process holds the shared namespace across all of them, so variables from cell 1 are available in cell 2 — same model as Jupyter, different storage.When a cell runs, output is written to a .output sidecar file (JSON with stdout, stderr, images, timing). The browser frontend shows it, but so can anything else that can read a file.A few things I find useful about this: edit cells in any editor —Mar 20, 2026 5:26 PM
nasa.gov
NASA Exploration, Science Inspire “Project Hail Mary” Filmhttps://www.nasa.gov/general/nasa-exploration-science-inspire-project-hail-mary-film/Real-life space exploration and big-screen science fiction will converge on Friday. As NASA prepares to launch Artemis II, the first crewed mission under the agency’s Artemis program and another step toward sending the first astronauts – Americans – to Mars, the fictional film “Project Hail Mary” premiere will take audiences on a journey into deep […]Mar 20, 2026 5:22 PM
news.ycombinator.com
Launch HN: Sitefire (YC W26) – Automating actions to improve AI visibilityhttps://news.ycombinator.com/item?id=47457472Hi HN! We're Vincent and Jochen from sitefire (https://sitefire.ai). Our platform makes it easy for brands to improve their visibility in AI search.We’ve been working together for years and have backgrounds in RL/optimization at Stanford and software engineering. We came to this idea after speaking with marketing teams who were seeing declining traffic due to Google’s AI Overviews and didn’t know what to do.This space can feel esoteric. Many case studies, few actual studies. Constant battle against myths (e.g. you need a llms.txt vs. you don't need a llms.txt) and "GEO hacks". We try to be more data-driven. And we try to be more bold and build a system that not only monitors, but actually improves traffic from AI search.While Google performs a single search, AI search engines expand the user prompt into 3-10 fan-out queries. The sourced pages are ranked using a classified algorithm similar to Reciprocal Rank Fusion (RFF). Finally, the LLMs skim the pages and decide what snippets to citMar 20, 2026 5:05 PM
