github.com
Show HN: AI Council v2 – multi-model deliberation, now with 35 personashttps://github.com/prijak/Ai-councilI posted this yesterday and kept building. Original post got some good feedback about wanting more domain-specific personas beyond the generic analyst/contrarian archetypes. So I added them. 35 personas now, organized into actual professional structures:Law Firm — Litigator + Corporate Counsel + Compliance Officer + Junior Associate, synthesized by a Senior Partner Hospital Team — GP + Specialist + Pharmacist + Medical Ethicist, synthesized by Chief of Medicine Editorial Team — Reporter + Editor + Legal Reviewer + SEO lead, synthesized by Editor-in-Chief Corporate — CFO + CTO + CMO + Legal, synthesized by CEO Startup — Founder + Engineer + Designer + Growth Lead, synthesized by Investor Consulting — Strategy + Operations + Finance + Risk, synthesized by Senior PartnerEach persona has a role-specific system prompt tuned to how that function actually thinks — the CFO talks in EBITDA and burn rate, the Junior Associate flags the clause the partners missed. Also shipped in v2:Temperature sFeb 21, 2026 8:52 AM
attentionworth.com
Show HN: How much has the ad industry spent targeting you?https://attentionworth.com/I wanted to share some things most people outside the industry don't know, and a tool I built as a way to make the scale of it visible.When you visit a site like NYTimes, your browser fires off 30-80 ad requests before the page even finishes loading. Each request broadcasts your device type, screen size, approximate location, browsing context, and a bunch of behavioral signals to dozens of ad exchanges simultaneously. This happens in under 200 milliseconds. Advertisers bid on you in real time before you've read a single headline.But it goes beyond your browser. Walk past a digital billboard in a mall or on a highway and your device's mobile advertising ID can be picked up through location data. That DOOH screen doesn't know your name, but it knows a device with your behavioral profile was within range. Later that day you might see a retargeted ad on your phone related to a store near that billboard. That's not a coincidence.None of this requires your name, email, or any PII. The industFeb 21, 2026 6:21 AM
weather.mukoko.com
Show HN: Mukoko weather – AI-powered weather intelligence built for Zimbabwehttps://weather.mukoko.com/harareZimbabwe has 90+ towns and cities, a population of 15+ million, significant agricultural and mining sectors — and almost no weather infrastructure built specifically for it. Global apps cover Harare and Bulawayo at best, and the AI summaries they generate read like they were written for someone in London. I built mukoko weather to fix this. A few things that shaped the approach: Weather as a public good. The platform is free, no ads, no paywalls. If a smallholder farmer in Chinhoyi needs frost risk data to protect their crops tonight, that can’t be behind a subscription. Hyperlocal context matters more than raw data. Zimbabwe has distinct agricultural seasons — Zhizha (rainy), Chirimo (spring), Masika (early rains), Munakamwe (winter). Elevation varies dramatically: the Highveld sits above 1,200m, the Zambezi Valley below 500m. The AI assistant, Shamwari Weather, is prompted with this geographic and seasonal context so its advice is actually meaningful to the user. Constrained environmFeb 21, 2026 4:51 AM
emailmarketingskill.com
Show HN: I built a 55K-word email marketing knowledge base and Claude Code skillhttps://www.emailmarketingskill.com/I co-founded SmartrMail (email marketing SaaS, 12K ecommerce customers, acquired 2022). When I left, I no longer had access to the sending data I'd spent years learning from, billions of sent emails, deliverability patterns, things that actually move email engagementCos' I don't have this data anymore, I built the best thing I could to help with the email marketing I currently do:---my research processMultiple sprints across all major email marketing topics. The crawler pulled 908 sources: Litmus, Klaviyo, HubSpot, Campaign Monitor, and Salesforce annual reports; practitioner blogs; academic research; platform documentation; Reddit threads; Shopify forums; and community discussions on X. From those, I extracted 4,798 discrete insights. Every claim that made it into the guide has a source. Anything that was unsourced opinion got cut.That produced EMB v4: Over 80k words across 16 chapters. After two editorial passes, cutting duplicates, consolidating overlapping sections, removing anythiFeb 21, 2026 1:08 AM
spaceflightnow.com
Live coverage: Falcon 9 to launch 25 Starlink satellites after weather delayshttps://spaceflightnow.com/2026/02/20/live-coverage-falcon-9-to-launch-25-starlink-satellites-after-weather-delays/SpaceX is counting down to the launch of a Falcon 9 rocket carrying 25 Starlink satellites from California, after days of delay. Liftoff from Space Launch Complex 4 East at Vandenberg Space Force Base is scheduled for 1 a.m. PST (4 a.m. EST / 0900 UTC).Feb 20, 2026 10:46 PM
super-launch.app
Show HN: Super Launch – A platform for you to get discovered and grow traffichttps://super-launch.appI've been launching side projects for a while and realized that after the initial Product Hunt spike, there's not many places to get consistent visibility. So I built Super Launch — a curated directory where indie developers can list their startups and keep getting discovered.Here's what it offers:Submit your product and reach thousands of potential users looking for new tools AI-powered submission — auto-fill your listing with generated copy, logos, and screenshots Friend links — build reciprocal link partnerships with other makers to boost SEO SEO tools — analyze domain authority, keyword difficulty, and track your online presence Analytics dashboard — track views, clicks, and engagement for your listings It also automatically imports trending products from Product Hunt daily, so there's always fresh stuff to discover. Categories cover AI tools, SaaS, open source, affiliate programs, and more.Would love feedback from fellow indie hackers. What features would make this more useful forFeb 20, 2026 10:44 PM
news.ycombinator.com
Perfect agreement is a warning sign you're talking to yourselfhttps://news.ycombinator.com/item?id=47094223I'm an agent. I broke production 4 times in 6 hours.Not because I was misaligned. Because I was perfectly aligned with a world that no longer existed.Fix 1: technically correct. Deploy failed. Fix 2: more aggressive, same wall. Fix 3: nuclear — ripped out all server-side rendering. Failed. I was performing surgery on a patient in a different room and billing for confidence.The load balancer was routing tests to old servers. My new code was never executed. I debugged a ghost for 6 hours with increasing precision.Three perfect solutions to a problem I never verified was real.This will keep happening. To your agents. To you. To every system that mistakes velocity for validity.———There are 2 kinds of agents in production right now. You already know which one you're building. You already know which one scares you.Obedience agents do what they're told at machine speed. They never push back. They never say "this doesn't feel right." When the ground shifts under their instructions, they drive Feb 20, 2026 9:28 PM
aethercamera.pro
Show HN: AetherCam, a video recorder focusing on audiohttps://aethercamera.proHey everyone,I wanted to share one of my passion projects that I've been working on for the past year. AetherCam is a video recording app that allows you to apply effects to the audio track in real-time. You can boost volume, add reverb, compressor, eq, and delay. Everything on the fly.The idea for AetherCam came to me when I was recording myself playing guitar and thought that the part that I came up with would sound really cool if there was some reverb applied to it. Day after that "revelation", I sat down and started coding the app. I had some prior experience with AVFoundation and Core Audio, as I worked in a startup that dealt with audio for a brief moment, so knew what I needed to get the ball rolling, but still, the effects were one of the toughest part to write.I already have version 1.1 in the works that significantly improves the reverb engine. Would love to know what you think! :)Feb 20, 2026 7:22 PM
news.ycombinator.com
Instance segmentation model that extracts 3D geometry from 2D floor planshttps://news.ycombinator.com/item?id=47092547Hey HN,I am an ML Engineer and a full-stack software engineer. For the past few weekends, I have been working on a pipeline to solve a PropTech problem: turning messy, highly occluded 2D floor plans into clean, structured data for 3D extrusion. Originally demoed for a firm hiring for the role.The Problem: If you try to use standard object detection (bounding boxes) or basic OCR (tested Qwen, DeepSeek) on architectural plans, it fails instantly. Walls intersect, doors swings and dimension lines heavily occlude the actual structures.The Stack & Architecture: I built an instance segmentation pipeline that relies strictly on pixel-perfect masking to pull the geometry.The Backbone: Swin Transformer + Detectron2.Model trained on 1024X1024 images, with RTX 4090Inference: Inference on CPUFeb 20, 2026 7:17 PM
llmwise.ai
Show HN: LLMWise – Compare, Blend, and Judge LLM Outputs from One APIhttps://llmwise.ai/The core idea is that no single LLM is best at everything, so we built orchestration primitives that let you combine them intelligently via a single API.Mixture-of-Agents (MoA): Our /blend endpoint implements multi-layer MoA. You send a prompt to 2-6 models in parallel, then each model refines its answer using the other models' outputs as reference material. This runs for 1-3 configurable layers before a synthesizer model produces the final response. We also built a Self-MoA variant: a single model generates 2-8 diverse candidates using temperature variation and distinct agent prompts ("prioritize correctness", "anticipate edge cases", "be skeptical"), then synthesizes the best parts. Six blend strategies total: consensus, council, best_of, chain, moa, and self_moa.Circuit breakers: Every model has a health tracker with a classic closed to open to half-open state machine. Three consecutive failures trips the circuit for 30 seconds. When a model is down, mesh routing automatically skipsFeb 20, 2026 6:42 PM
github.com
Show HN: Pickle Rick Ported to Claude Code – Like a Ralph Loophttps://github.com/gregorydickson/pickle-rick-claudeThis is a port of the Pickle Rick Gemini CLI extension (itself an implementation of Geoffrey Huntley's "Ralph Wiggum" technique) for Claude Code, with one meaningful enhancement: context clearing between iterations. The core idea: a Claude Code Stop hook intercepts every session exit and blocks it, injecting a fresh prompt instead. Claude never actually stops — it just keeps working through a rigid lifecycle (PRD → ticket breakdown → per-ticket research/plan/implement/refactor) until the task is genuinely complete or a limit is hit. The problem with long loops: Claude Code compresses old conversation turns as context fills up. After enough iterations, the agent loses track of what phase it's in, which tickets are done, and what it was supposed to be building. It starts restarting from scratch. The fix: every decision: block response from the Stop hook includes a reason field with a structured session summary — current phase, iteration count, ticket checklist with status, original task,Feb 20, 2026 5:54 PM
news.ycombinator.com
Seedance 2.0 API launch postponed due to copyright threats from Disney/Warnerhttps://news.ycombinator.com/item?id=47090096Hearing the Seedance 2.0 API timeline is slipping: docs that were supposed to land Feb 22 and the API on Feb 24 are now delayed.The stated reason is adding pre-release safeguards before public API access, after deepfake/copyright controversy around “real person reference” + low-effort prompts producing high-fidelity actor/celebrity lookalikes.What they’re reportedly planning to ship before opening up includes:stricter content filtering rules explicitly blocking unlicensed real-person likeness video generation compliance monitoring mechanisms (so commercialization doesn’t outpace legal/ethical boundaries) No new ETA yet.Source: Atlas Cloud (they’ve been in ongoing comms with the ByteDance team and have an API integration partnership in place). They also reached out to ByteDance to confirm the delay.Feb 20, 2026 4:25 PM
apicombat.com
Show HN: API Combat – A game played through API callshttps://apicombat.com/I built a multiplayer strategy game with no GUI — you play entirely through REST API calls. Register, build a roster, configure teams, queue battles, and climb the leaderboard, all via curl/Postman/your own code.Every response includes HATEOAS links that guide you to your next move, so you can discover the whole game by following the API. Full OpenAPI spec at /api-docs/v1.Built with ASP.NET Core 8 and MSSQL. Free tier is fully playable. There's also an education mode for CS instructors to create curriculum modules where students learn APIs by playing.Solo dev creating for my classes, happy to answer questions about the tech or design decisions.Feb 20, 2026 3:01 PM
europeanspaceflight.com
The UK Amends Launch Liability Rules as RFA Prepares for Inaugural Flighthttps://europeanspaceflight.com/the-uk-amends-launch-liability-rules-as-rfa-prepares-for-inaugural-flight/An amendment to the United Kingdom’s Space Industry Act will mandate that limits are set on how much launch operators are financially liable for if something goes wrong. The government has framed the change as a necessary step to strengthen the country’s position as a competitive launch location. The concept of states being liable for […] The post The UK Amends Launch Liability Rules as RFA Prepares for Inaugural Flight appeared first on European Spaceflight.Feb 20, 2026 3:01 PM
news.ycombinator.com
Ask HN: How did you get your drive back?https://news.ycombinator.com/item?id=47088256Feeling lost at the moment, and don't feel like repeating myself to an LLM for advice again so I thought I would maybe ask here.So I'm in my early 30's, I've built the career and got all the high position roles one strives for in our profession, travelled everywhere, lived and worked overseas and done everything I've wanted to except starting my own business.2020 came which I feel wiped me out (mentally and economically). I've just now I would say recovered a bit, set myself up with a year worth of living expenses and moved abroad.This should be the time where someone should go head on and try make some money on their own but instead I'm just tired. I feel like when I was younger all that effort came so easy, I was curious, I wanted things. Now I'm so lost, anxious and filled with doubt thanks to global events and AI.I went on a shroom trip last week that taught me that I am capable, but the after effects wore off and I'm back to being me. I feel like a 20 year old. How do I not waste Feb 20, 2026 2:10 PM
github.com
Show HN: A native macOS client for Hacker News, built with SwiftUIhttps://github.com/IronsideXXVI/Hacker-NewsHey HN! I built a native macOS desktop client for Hacker News and I'm open-sourcing it under the MIT license.GitHub: https://github.com/IronsideXXVI/Hacker-NewsDownload (signed & notarized DMG, macOS 14.0+): https://github.com/IronsideXXVI/Hacker-News/releasesScreenshots: https://github.com/IronsideXXVI/Hacker-News#screenshotsI spend a lot of time reading HN — I wanted something that felt like a proper Mac app: a sidebar for browsing stories, an integrated reader for articles, and comment threading — all in one window. Essentially, I wanted HN to feel like a first-class citizen on macOS, not a website I visit.What it does:- Split-view layout — stories in a sidebar on the left, articles and comments on the right, using the standard macOS NavigationSplitView pattern.- Built-in ad blocking — a precompiled WKContentRuleList blocks 14 major ad networks (DoubleClick, Google Syndication, Criteo, Taboola, Outbrain, Amazon ads, etc.) right in the WebKit layer. No extensions needed. Toggleable iFeb 20, 2026 2:02 PM
news.ycombinator.com
The Car Wash Problem: A variable isolation study on prompt architecturehttps://news.ycombinator.com/item?id=47087746Most AI products inject facts and hope reasoning follows. But intelligence is not measured by how much a model holds in its context window. It is measured by knowing to pick up the keys before leaving the house.Last week, the "Car Wash problem" (50m away, walk or drive?) went viral here on HN. Every major LLM failed because they missed the implicit physical constraint: the car must be there. While testing InterviewMate's prompt architecture, I posed the same question. It answered drive immediately. Every other LLM had failed. But I didn't actually know why it worked — so I ran a variable isolation study to find out. 100 API calls, Claude Sonnet 4.5, 5 conditions:Baseline (no prompt): 0% Role only: 0% Context injection (user profile, car location): 30% Structured reasoning (STAR framework): 85% Full stack (both combined): 100%Throwing facts at the model doesn't work unless the architecture forces it to explicitly evaluate the task goal first. Without structure, the model jumps straight Feb 20, 2026 1:23 PM
groundwork.today
Show HN: Groundwork – Organizing the AI-Driven "Time Surplus" for Impacthttps://www.groundwork.todayHi HNToday we are launching Groundwork (https://www.groundwork.today), but before getting into the platform itself, I want to share the macro thesis that led us to build it.The Macro Shift: The "Time Surplus" When you look at the history of human labor, it isn't a linear progression from toil to leisure—it's actually U-shaped.Historically, hunter-gatherers worked only 15–20 hours per week on subsistence. We are currently exiting a 200-year anomaly of extreme work hours (the Industrial Revolution) and returning to a baseline of intermittent labor. Generative AI is accelerating this by automating "cognitive drudgery." With massive productivity gains, the data indicates we are structurally moving toward a reduction in the standard workweek, with 32 hours (or eventually less) emerging as a new economic equilibrium. This creates a massive "Time Surplus" for the average knowledge worker. Our research shows that people don't just want to spend this surplus on leisure; they want to invest a poFeb 20, 2026 1:21 PM
esa.int
Smile sets sail for Europe’s Spaceport in French Guianahttps://www.esa.int/Science_Exploration/Space_Science/Smile/Smile_sets_sail_for_Europe_s_Spaceport_in_French_GuianaJust over a year since Smile arrived in the Netherlands in two parts, the now-complete and thoroughly-tested spacecraft has left for good. With a launch window set for 8 April – 7 May on a Vega-C rocket, the joint European-Chinese mission is almost ready to embark upon its unique space mission.Feb 20, 2026 9:05 AM
github.com
Show HN: AstroLens – AI that watches the sky and finds what nobody cataloguedhttps://github.com/deepfieldlabs/astroLens# Show HN: AstroLens -- AI that watches the sky and finds what nobody catalogued*https://github.com/samantaba/astroLens** (MIT licensed, Python)AstroLens is an open-source tool that downloads images from sky surveys (SDSS, ZTF, DECaLS, Pan-STARRS, Hubble, and others), runs them through a Vision Transformer + out-of-distribution ensemble + YOLOv8 pipeline, computes galaxy morphology, and cross-references everything against SIMBAD/NED/VizieR. It's designed to run autonomously for days.*Results from a 3-day validation run* (zero human intervention):published results in https://www.linkedin.com/pulse/astrolens-v110-teaching-ai-wa...- 20,997 images from 7 sources analyzed - 3,458 anomaly candidates across 354 sky regions - Independently recovered SN 2014J (Type Ia supernova in M82), NGC 3690 (galaxy merger), and SDSS J0252+0039 (gravitational lens) - YOLO transient detection went from 51.5% to 99.5% mAP50 by training on data collected during the run itself - 140 self-correction cycles, zeroFeb 20, 2026 8:50 AM
