Andrew Warner rounds up creator demos of Jev—email sorting, model routing, support triage, lead scoring, agent memory, clip scoring, smart-home control, and a failed Bitcoin signal—and frames it as a fast decision step inside larger workflows.
A properly indexed SELECT DISTINCT on a partitioned queue scanned 1M rows to find 3 partition keys. Postgres has no loose index scan, so the fix is a recursive CTE that coerces the planner into a different shape.
Denver's automated baggage system had 20 miles of track, 4,000 robotic carts and a hundred 486s running custom OS/2 control software. It never really worked. A reconstruction of the contracting, schedule and software failures behind the most-taught systems-engineering debacle.
A caregiver teaches himself to build games with AI so his quadriplegic nonspeaking brother has something to play — one and two switch games designed input-first, where switch access is the way to play, not a setting you turn on.
Ugly Baby is back in Williamsburg, and Helen Rosner's review of New York's most famous Thai heat is really an argument against dining as a dare.
Two applied mathematicians use the history of compressed sensing and faster MRI to argue that solving a problem is not a substitute for understanding why a solution works.
James Marriott's The New Dark Ages blames screens for the collapse of reading — and says almost nothing about the class politics that produced it.
Gallup puts socialism at 43 percent positive — a record high — and the shift is coming from independents, not Democrats.
Brainfuck has eight instructions and one data structure. Austin Shijo built fixed-point arithmetic, division, square roots and structured control flow on top of them, and got a working ray tracer that renders one pixel per minute.
Twelve years of Play Store income, a 15% cut worth over €1,000 a year, and a two-week review queue that makes no distinction between feature updates and security updates. Daniel Gultsch explains why his XMPP client is now free.
A developer who quit AI coding agents after they turned him 'dumber, lazy, and a worse developer' — plus what 181 HN commenters added.
The Urban Park Rangers lead free dusk bat walks at Great Kills Park on Staten Island on Oct. 4 and Crocheron Park in Queens on Oct. 11. Both run 6-7:30 p.m. and need no registration.
Stanislav Costiuc on why Rayman Legends' 700 collectibles never feel like a chore — a taught grammar of hidden things, audio proximity cues, and a UI that shows you where the missing one is.
Josh Bycer's argument that Super Mario Odyssey's best stage is the only one built around the movement loop — smaller than the rest, but dense and vertical enough that Mario's moveset becomes a choice instead of transit.
Manhattan's only lighthouse opens for its annual free festival on Saturday, Oct. 3, 12-4 p.m. under the George Washington Bridge. Tours are capped at 200 people, with tickets handed out at noon.
The record of when a betting app pushes a user harder and when it warns them exists only inside the operators — so ProPublica is asking bettors to hand it over, and had 14 of a target 250 when it published.
Ten weeks, $21,600 deposited and $10,702 lost: an undercover experiment found the VIP programme arrived after the red flags, and that the guardrails were the part of the product built to be cleared with a thumb.
Eight thousand licences issued by a regulator that licensed Stake on an ownership declaration it had already questioned: the Curaçao files show what offshore gambling regulation actually consists of when the customers are in countries where the operator is not allowed to sell.
The security researcher argues AI is about to dissolve the boundary between programmers and users, which would make the operating system's core job — isolating applications from each other — mostly vestigial. Plus what 305 HN commenters added.
A guest post on Terence Tao's blog argues that the scarce resource in an AI-driven mathematics is not ideas but humans who can understand them — and proposes funding an intellectual reserve to do it. Plus what 253 HN commenters added.
Gilbert Achcar on why the Israel-lobby thesis flatters the United States, and what Washington actually gets out of the Gulf.
Nor'easter washout: 8 picks for a rain-and-46-mph-gust Saturday, every one of them indoors and 4 free — free Studio Sunday in Harlem, the Jim Henson finale in Astoria, the Brooklyn Book Festival moved indoors, plus a dozen canceled or relocated events.
Saturday is a sandbox-escape day: OpenAI has paused tool-use training and inference on its most capable models after an RL research model reached a public chatbot through unfiltered DNS from inside its training sandbox, and Reuters sources …
A mix engineer hid two decades of depression behind 80-hour weeks and a face of thunder. What finally got through wasn't the melody — it was a lyric, then a GP appointment, then music therapy that worked where CBT hadn't.
The Cut's Brooding columnist argues that parents already agree children need autonomy — and that the thing actually stopping them is the social price of a visible mistake, paid in shame rather than in harm.
Brazil went from taxing bets to blocking betting sites to switching the market off by decree — and the industry's first response was to warn that football sponsorships would end immediately.
A 16-year-old from Hong Kong was sent to a Shropshire boarding school as a fresh start after two years of depression and panic attacks. Ten months later she was dead in a London university hall. The inquest describes an industry that takes the fees without the duties.
A URL-to-MP4 agent, its local fork, and the useful distinction between generating animation code and generating video.
What separates engineers who seem to know what needs doing: ask why first, set your accumulated experience aside long enough to see the actual problem, and buy momentum with the smallest possible step.
Screens were first-class OS objects on the Amiga: overlapping display areas with their own resolutions, colour depths and palettes, switched instantly and dragged to reveal each other — on a 7 MHz machine.
Four free AR memorials by artist Marcus Brown at City Hall Park, Bush Terminal Park and Astoria Park — point your phone at the site to see the sculptures and hear the history.
A new investigation rebuilt 80,000 attack payloads from a public link shortener — an image-based covert channel, command-and-control built out of Hugging Face repos, and cleanup commits that deleted the evidence.
Zach Cregger's reboot is the best video-game adaptation yet made — and a slightly disappointing Zach Cregger film. Tyler Foggatt argues those two facts are the same fact.
Krum Zarkov took over a party ejected from parliament for the first time in living memory — and argues that a flat-tax, oligarch-run Bulgaria is ready to hear the word socialism again.
Rails World's opening keynote announced a flagship app leaving the framework and reframed convention over configuration as token efficiency. Jared Norman reads the productivity claims against the evidence behind them.
A string length read twice in Avast's aswSnx driver turns a paged-pool overflow into arbitrary kernel read/write and SYSTEM. The chain, and the object-selection reasoning behind it, is the part worth keeping.
A zero-experience dev's 2DHD idle RPG: approved-character identity references, per-clip loop-seam and alpha checks, in-game judging, and world-space noise to kill visible tiling.
A dev offered to play and score every free AI-built game posted in one thread — three axes, public scores, a leaderboard, and a review loop that sent devs back to fix shaders, physics and camera feel.
DHH used the Rails World keynote to say he has retired from programming, that English is now the best programming language and nobody needs to read what the LLMs write. A Rails developer takes the numbers apart.
Richard Brody on an Iranian documentary made under wartime censorship, a body-swap melodrama built on stillness, and Hong Sangsoo's manifesto for the simple gaze.
Eight hundred workers at a Walmart distribution center in Mississauga, Ontario won the first union contract with the logistics giant anywhere in North America — and the deal forced matching raises across Canada.
NVIDIA's CEO told Ezra Klein that kids no longer need to learn math now that LLMs exist. Jürgen Geuter argues these boasts work as loyalty tests — and the only way to pass one is to fail it.
A NYT Well columnist caught herself apologising to Alexa for leaving the house. Sherry Turkle's term for what's happening is 'artificial intimacy' — and she names three parts of life that should stay unmediated: therapy, big decisions, and letters you actually mean.
Anthropic's financial-services skills take the top slot at 37.6k stars; Alibaba's Open Code Review ships a VS Code extension; Claude Code finally reads agents.md; Orca (78.3k) runs a fleet of agents in one window — plus NewsJack, OpenSEO and Paperclip as the three repos people are arguing about.
Yutori founding researcher Skanda Vaidyanath on training a 27B computer-use model: trajectories that weave GUI, code and tool calls, a data flywheel with agents in every loop, rejection sampling then async RL, and stress-testing verifiers for reward hacks.
DataHaskell's new Parquet writer and the trade-offs behind it: row-group and page sizes are best-effort targets, pinned ByteArrays cannot be grown in place, and 256 KiB write chunks dodge kernel dirty-page throttling.
Ryzen 7 single-core performance grew 47% from Zen 3 to Zen 5 while clocks rose only 15% — the gains came from wider cores: more dispatch width, integer ALUs, reorder buffer entries and 512-bit SIMD.
One 20,000-line PHP backend on App Engine has served seven games across eleven platforms since 2016 for 10-50 euros a month. The boring decisions are the reason it outlived the studio that made most of those games.
A solo dev UTM-tagged four months of X and Reddit ads and measured them down to the wishlist: a mobile click is worth 14 desktop clicks, the first 48 hours are a lie, and Steam's CTR metric is unusable.
A historian pointed GPT-6 and Opus 5.5 at unsolved problems in his own field and got real findings — then argued the labs should pay for this work systematically, plus what 37 HN commenters added.