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pricearb.com• Jan 9, 2026• 1 min read

Show HN: PriceArb – find short-term mispricings in prediction markets (NFL)I built PriceArb based on noticing how emotional live prediction markets (Kalshi/Polymarket) can get and reprice during NFL games. PriceArb compares the current game state (score, time left, possession) and team records against similar historical games to highlight spots where prices under or overpriced vs. hundreds of historical comparisons. It’s meant for short-term trading (fade extremes, exit quickly), not as a buy-and-hold 'outcome predictor' — I’ve seen plenty of cases where a trade idea works even though the final outcome didn’t. NFL only for now; two contracts from all sport categories will be free forever.

news.ycombinator.com• Dec 20, 2025• 1 min read

The offline geocoder we wantedWhat is this?This is an offline reverse geocoder written in Python. Given a latitude–longitude pair, it returns the correct administrative region such as country, state, or district without calling any external APIs. This avoids API costs, rate limits, and network dependency.Why build another reverse geocoder?Most offline reverse geocoders rely on nearest-neighbor lookups. While fast, this approach often fails near borders because the closest location is not always the correct administrative region. This project focuses on correctness over proximity by verifying which boundary a coordinate actually falls inside.How does it work?A KD-Tree is used to quickly shortlist nearby administrative boundaries. For those candidates, the system performs polygon containment checks to confirm the true region. It supports both single-process execution for small workloads and multiprocessing for large batch processing.PerformanceThe system processes 10,000 coordinates in under 2 seconds, with an averag

bing.com• Dec 5, 2025• 1 min read

Says Justice Department must examine deal.Democrat Senator Elizabeth Warren has called on the Justice Department to examine Netflix's $82.7 billion buyout of Warner Bros., and branded the deal as "like an anti-monopoly nightmare." The ...

news.google.com• Nov 4, 2025• 1 min read

Walmart is finally putting limits on how many Pokémon cards you can buyWalmart is finally putting limits on how many Pokémon cards you can buy Polygon.com

bing.com• Oct 14, 2025• 1 min read

Scientists Are Literally Growing MetalOne of the most well-known and intricately detailed types of 3D-printing, “vat photopolymerization,” uses light to form structures from photo-sensitive resin. A new study has found a way to leverage ...

bing.com• Oct 8, 2025• 1 min read

4 reasons why you might want to roll back to a previous Windows updateAaron's been covering tech and games for over a decade, with tenure at publications such as The Daily Dot, Dot Esports, Polygon (Heroes Never Die), GameCrate, and Newegg Insider from 2014-2020. Then, ...

bing.com• Aug 18, 2025• 1 min read

I love that 'He Is Coming' doesn't waste my timeThis article is part of Run, Die, Repeat, Polygon's week-long series exploring roguelikes. I loved the first Hades game because of the characters and story. When Hades 2 was finally out, all I wanted ...

terraintap.com• Aug 2, 2025• 1 min read

Show HN: Fast Elevation API with memory mapped tilesI recently wrote and launched a high-performance Elevation API, built from the ground up, in C. I was highly inspired by the handmade community and I was intrigued by the idea of handling fairly large datasets and optimizing caching and smart prefetching, and to cream out maximum performance in terms of latency and handling large loads.The whole thing is built from scratch. I wanted to roll my own high performance server that could handle a lot, mostly for the technical challenge but also because it brings down hosting costs.At the core is a hand made TCP server where a single thread handles all I/O via epoll, distributing the events to a pool of worker threads. The server is fully non-blocking and edge-triggered, with a minimal syscall footprint during steady-state operation.Worker threads handle request parsing and perform either direct elevation lookups for single- or multi-points, or compute sample points along polyline paths.The elevation data is stored as memory mapped geotiff ra

westoncb.github.io• Jun 12, 2025• 1 min read

Show HN: Laser-Tracer, programmable virtual volumetric vector displayThis was an idea I had 7yrs ago that I recently decided to go ahead and build since by working with LLMs (mostly o3 and Gemini 2.5 pro) it seemed doable in reasonable time.The original motivation was partly aesthetic, but mostly that this was the ideal "language" for me to express arbitrary 3d forms through. I wanted something with zero boilerplate that would be a natural fit for algorithmic expression. For me, writing programs that say how to move a "pen" around in 3d space was more intuitive than e.g. writing pixel shaders.The format is inspired by Logo/Turtle, and somewhat mimics how a 3d printer works in that Laser-Tracer programs are G-Code like: the fundamental operation is depositing points; from there we get 'traces' specified by either relative (pen.traceBy(x,y,z)) or absolute destinations (pen.traceTo(x,y,z)). And built on top of traces are 'macros' for doing things like drawing text or sweeping polygons.When deposits are made by the 'pen,' it emits additively blended particl

bing.com• Jun 10, 2025• 1 min read

The 13 Best Outdoor Lounge Chairs You Can BuyThrow out those shitty lawn chairs and build your dream patio. If you have the money or taste in design, you can do better Poly fabric can get busted if you don’t care for it You don’t have to break ...

github.com• Jun 4, 2025• 1 min read

Show HN: Decksh – a DSL for presentations and data visualizationsdecksh is a domain-specific language for presentations, information displays, and data visualizations. I built decksh as a way to have complete control over my presentations, and to have a portable, documented, long-lasting format for information.decksh generates the deck[1] markup language which uses a percentage-based coordinate system, and may be rendered as PDF, SVG, or PNG. decksh is written in the Go programming language, and may be called as a library. The decksh object reference[2] describes the language.decksh works with text in many orientations (left, centered, end, rotated) as well as text and code blocks, images (GIF, PNG, JPG), graphics (lines, curve, arc, circle, rectangle, square, ellipse, polygon, polylines), along with composite objects (lists, arrows, braces, brackets). Charts and graphs are also included: (bar, line, scatter, donut, dot, lego, proportional maps, fan, bowtie, slope, and radial charts).decksh supports variables, color naming, (SVG names, rgb, hex rgb,

bing.com• May 20, 2025• 1 min read

Lisa Dazzles in Diamonds & Couture for Bvlgari’s High Jewelry Event in SicilyLast night, the Roman jeweler Bvlgari headed to Taormina, Sicily, to unveil its Polychroma high jewelry collection. Among the guests making their way to the historic destination was Bvlgari global ...

bing.com• May 8, 2025• 1 min read

How is Carbon Fiber Made?Carbon fibers consist of thin filaments (5–10 micrometers in diameter) made of long chains of carbon atoms arranged in a polycrystalline structure. These fibers contain 92–100 wt% anisotropic carbon ...

bing.com• Apr 17, 2025• 1 min read

Rashid Johnson Finds His Promised Land at the GuggenheimThe artist’s first major museum survey fills Frank Lloyd Wright’s spiral with a rich mix of media, a view of the polymathic flux of a 25-year career, and a sense of healing. By Holland Cotter See more ...

fundhog.xyz• Apr 13, 2025• 1 min read

Show HN: Fundhog – A Ko-Fi Alternative for Accepting Crypto DonationsI’m thrilled to share Fundhog, a platform I built to let creators, developers, and nonprofits accept cryptocurrency donations directly. It’s like Ko-fi, but for Web3, supporting Ethereum, Polygon, and other EVM-compatible chains—with no middleman. Every transaction happens straight between the donor and creator.Why FundHog?Fiat platforms charge steep fees and limit access. Fundhog uses blockchain for direct, low-fee, transparent donations. Here’s the scoop: Button Builder: I added a simple tool so creators can design their own donation buttons. Pick size (small/medium/large), border radius, and colors to match your site, then grab the embed code.No Middleman: Funds go directly from donor to creator. I don’t handle your crypto—Fundhog just connects wallets.Easy Embedding: The ~1KB embed.js script adds your button to any site (HTML, React, etc.) in minutes.Multi-Chain: Donors pay via MetaMask or similar on Ethereum, Polygon, and more. Chain detection ensures a smooth flow.Secure: A light