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FTX whistleblower Caroline Ellison set for early release next month 3 by jxmorris12 | 0 comments on Hacker News.

I canceled my book deal 83 by azhenley | 39 comments on Hacker News.

HTTP Strict Transport Security (HSTS) 4 by arunc | 2 comments on Hacker News.

Show HN: Per-instance TSP Solver with No Pre-training (1.66% gap on d1291) 9 by jivaprime | 1 comments OP here. Most Deep Learning approaches for TSP rely on pre-training with large-scale datasets. I wanted to see if a solver could learn "on the fly" for a specific instance without any priors from other problems. I built a solver using PPO that learns from scratch per instance. It achieved a 1.66% gap on TSPLIB d1291 in about 5.6 hours on a single A100. The Core Idea: My hypothesis was that while optimal solutions are mostly composed of 'minimum edges' (nearest neighbors), the actual difficulty comes from a small number of 'exception edges' outside of that local scope. Instead of pre-training, I designed an inductive bias based on the topological/geometric structure of these exception edges. The agent receives guides on which edges are likely promising based on micro/macro structures, and PPO fills in the gaps through trial and error. It is interesting to see...

Show HN: Evidex – AI Clinical Search (RAG over PubMed/OpenAlex and Soap Notes) 1 by amber_raza | 0 comments Hi HN, I’m a solo dev building a clinical search engine to help my wife (a resident physician) and her colleagues. The Problem: Current tools (UpToDate/OpenEvidence) are expensive, slow, or increasingly heavy with pharma ads. The Solution: I built Evidex to be a clean, privacy-first alternative. Search Demo (GIF): https://imgur.com/a/zoUvINt Technical Architecture (Search-Based RAG): Instead of using a traditional pre-indexed vector database (like Pinecone) which can serve stale data, I implemented a Real-time RAG pattern: Orchestrator: A Node.js backend performs "Smart Routing" (regex/keyword analysis) on the query to decide which external APIs to hit (PubMed, Europe PMC, OpenAlex, or ClinicalTrials.gov). Retrieval: It executes parallel fetches to these APIs at runtime to grab the top ~15 abstracts. Local Data: Clinical guidelines are stored locally in SQLite and retr...

Ask HN: Best Podcasts of 2025? 29 by adriancooney | 22 comments The Rest is Politics, Leading, Philosophize This and Stratechery (paid) are the podcasts that stood out the most in 2025. Curious what other HNers listen to. on Hacker News. The Rest is Politics, Leading, Philosophize This and Stratechery (paid) are the podcasts that stood out the most in 2025. Curious what other HNers listen to.

How we lost communication to entertainment 11 by 8organicbits | 3 comments on Hacker News.

Nvidia's $20B Antitrust Loophole (Not an Acquisition) 44 by ossa-ma | 15 comments on Hacker News.

Show HN: Witr – Explain why a process is running on your Linux system 37 by pranshuparmar | 7 comments Hi HN, I built a small Linux CLI tool called witr (Why Is This Running?). The idea came from a situation most of us have hit: you log into a machine, see a process or port running, and immediately wonder why it exists, who started it, and what is keeping it alive right now. witr traces a process, service, or port back to its origin and responsibility chain and explains it in a way that’s quick to read, especially when you’re debugging under pressure. This is v0.1.0. It’s intentionally small and focused. Feedback, criticism, and edge cases are very welcome. Repo: https://github.com/pranshuparmar/witr on Hacker News. Hi HN, I built a small Linux CLI tool called witr (Why Is This Running?). The idea came from a situation most of us have hit: you log into a machine, see a process or port running, and immediately wonder why it exists, who started it, and what is keeping it alive right n...

Rob Pike got spammed with an AI slop "act of kindness" 73 by nabla9 | 17 comments on Hacker News.

URL Pattern API 13 by thunderbong | 5 comments on Hacker News.

Show HN: Lamp Carousel – DIY kinetic sculpture powered by lamp heat 8 by Evidlo | 0 comments I wanted to share this fun craft activity for the holidays that I've been doing with my family over the last few years. I came up with these while cutting up some cans trying to make an aluminum version of paper spinners. There are a variety of shapes that work, but generally bigger+lighter spinners are better. Also incandescent bulbs are the best, but LEDs work too. They remind me of candle carousels I would see at my grandparents' house during Christmas. Let me know what you think! on Hacker News. I wanted to share this fun craft activity for the holidays that I've been doing with my family over the last few years. I came up with these while cutting up some cans trying to make an aluminum version of paper spinners. There are a variety of shapes that work, but generally bigger+lighter spinners are better. Also incandescent bulbs are the best, but LEDs work too. They remind me of...

The lightest notes app implementation in 111 loc 2 by birdculture | 0 comments on Hacker News.

Lua 5.5.0 71 by km | 11 comments on Hacker News.

An initial analysis of the discovered Unix V4 tape 18 by DSpinellis | 0 comments on Hacker News.

Hybrid Aerial Underwater Drone – Bachelor Project [video] 8 by nhma | 1 comments https://www.energy.aau.dk/aau-drone-can-both-fly-and-dive-un... on Hacker News. https://ift.tt/ypTqhlP...

The Illustrated Transformer 15 by auraham | 2 comments on Hacker News.

Get an AI code review in 10 seconds 13 by oldmanrahul | 7 comments on Hacker News.

Why do people leave comments on OpenBenches? 15 by sedboyz | 0 comments on Hacker News.

Show HN: Linggen – A local-first memory layer for your AI (Cursor, Zed, Claude) 7 by linggen | 3 comments Hi HN, Working with multiple projects, I got tired of re-explaining our complex multi-node system to LLMs. Documentation helped, but plain text is hard to search without indexing and doesn't work across projects. I built Linggen to solve this. My Workflow: I use the Linggen VS Code extension to "init my day." It calls the Linggen MCP to load memory instantly. Linggen indexes all my docs like it’s remembering them—it is awesome. One click loads the full architectural context, removing the "cold start" problem. The Tech: Local-First: Rust + LanceDB. Code and embeddings stay on your machine. No accounts required. Team Memory: Index knowledge so teammates' LLMs get context automatically. Visual Map: See file dependencies and refactor "blast radius." MCP-Native: Supports Cursor, Zed, and Claude Desktop. Linggen saves me hours. I’d love to hear how ...

Ask HN: What are your predictions for 2026? 24 by mfrw | 21 comments What are your predictions for this coming year? on Hacker News. What are your predictions for this coming year?

Show HN: Paper2Any – Open tool to generate editable PPTs from research papers 7 by Mey0320 | 0 comments Hi HN, We are the OpenDCAI group from Peking University. We built Paper2Any, an open-source tool designed to automate the "Paper to Slides" workflow based on our DataFlow-Agent framework. The Problem: Writing papers is hard, but creating professional architecture diagrams and slides (PPTs) is often more tedious. Most AI tools just generate static images (PNGs) that are impossible to tweak for final publication. The Solution: Paper2Any takes a PDF, text, or sketch as input, understands the research logic, and generates fully editable PPTX (PowerPoint) files and SVGs. We prioritize flexibility and fidelity—allowing you to specify page ranges, switch visual styles, and preserve original assets. How it works: 1. Multimodal Reading: Extracts text and visual elements from the paper. You can now specify page ranges (e.g., Method section only) to focus the context and reduce token...

AI capability isn't humanness 7 by mdahardy | 2 comments on Hacker News.

The World Happiness Report is beset with methodological problems 22 by thatoneengineer | 11 comments on Hacker News.

We architected an edge caching layer to eliminate cold starts 4 by skeptrune | 0 comments on Hacker News.

Ask HN: What Are You Working On? (December 2025) 15 by david927 | 22 comments What are you working on? Any new ideas that you're thinking about? on Hacker News. What are you working on? Any new ideas that you're thinking about?

Hacking Google Chrome Source Code: Make Puppeteer work over Redis PubSub 8 by deadf00d | 2 comments on Hacker News.

Show HN: I audited 500 K8s pods. Java wastes ~48% RAM, Go ~18% 14 by wozzio | 11 comments on Hacker News.

Secondary school maths showing that AI systems don't think 31 by zdw | 89 comments on Hacker News.

Nuclear energy key to decarbonising Europe, says EESC 28 by mpweiher | 5 comments on Hacker News.

Show HN: An endless scrolling word search game 3 by marcusdev | 0 comments I built a procedurally generated word-search game where the puzzle never ends - as you scroll, the grid expands infinitely and new words appear. It’s designed to be quick to pick up, satisfying to play, and a little addictive. The core game works without an account using the pre-defined games, but signing up allows you to generate games using any topic you can think of. I’d love feedback on gameplay, performance, and whether the endless format feels engaging over time. If you try it, I’d really appreciate any bug reports or suggestions. Thanks in advance! on Hacker News. I built a procedurally generated word-search game where the puzzle never ends - as you scroll, the grid expands infinitely and new words appear. It’s designed to be quick to pick up, satisfying to play, and a little addictive. The core game works without an account using the pre-defined games, but signing up allows you to generate games using...

Show HN: Automated license plate reader coverage in the USA 9 by sodality2 | 3 comments Built this over the last few days, based on a Rust codebase that parses the latest ALPR reports from OpenStreetMaps, calculates navigation statistics from every tagged residential building to nearby amenities, and tests each route for intersection with those ALPR cameras (Flock being the most widespread). These have gotten more controversial in recent months, due to their indiscriminate large scale data collection, with 404 Media publishing many original pieces ( https://www.404media.co/tag/flock/ ) about their adoption and (ab)use across the country. I wanted to use open source datasets to track the rapid expansion, especially per-county, as this data can be crucial for 'deflock' movements to petition counties and city governments to ban and remove them. In some counties, the tracking becomes so widespread that most people can't go anywhere without being photographed. This includes pos...

How private equity is changing housing 54 by harambae | 112 comments on Hacker News.

IBM Z17 Time Synchronization Resiliency Enhancements 6 by rbanffy | 1 comments on Hacker News.

We collected 10k hours of neuro-language data in our basement 26 by nee1r | 28 comments on Hacker News.

Nested Learning: A new ML paradigm for continual learning 9 by themgt | 0 comments on Hacker News.

CATL Expects Oceanic Electric Ships in 3 Years 8 by thelastgallon | 1 comments on Hacker News.

Ireland's Inability to Defend Itself 10 by arthurz | 0 comments on Hacker News.

OMSCS Open Courseware 2 by kerim-ca | 0 comments on Hacker News.

SpaceX in Talks for Share Sale That Would Boost Valuation to $800B 27 by bko | 31 comments on Hacker News.

Gemini 3 Pro: the frontier of vision AI 63 by xnx | 18 comments on Hacker News.

Who Hooked Up a Laptop to a 1930s Dance Hall Machine? 18 by ChrisbyMe | 3 comments on Hacker News.

Hammersmith Bridge – Where did 25,000 vehicles go? 13 by tobr | 4 comments on Hacker News.

PyTogether: Collaborative lightweight real-time Python IDE for teachers/learners 9 by indigodaddy | 0 comments on Hacker News.

Valve reveals it’s the architect behind a push to bring Windows games to Arm 29 by evolve2k | 164 comments https://archive.is/AKhTr on Hacker News. https://ift.tt/hsqm7w3

OpenAI declares 'code red' as Google catches up in AI race 112 by goplayoutside | 118 comments on Hacker News.

Ghostty compiled to WASM with xterm.js API compatibility 29 by kylecarbs | 3 comments on Hacker News.