news.ycombinator.com
Show HN: The Σ-Manifold Manifestohttps://news.ycombinator.com/item?id=45698543This project explores the connection between *the linear structure of text* and its *emotional-aesthetic impact*. We identify *five fundamental relations* between consecutive sentences — labeled *A–E*. Each represents a shift of *subject-object*, i.e., a transformation of perspective and agency.When texts grow longer, these relations form *sequences* — and from the infinite combinatorial space, *eight stable patterns (Σ₁–Σ₈)* emerge empirically. Each pattern correlates with a distinct *semantic and emotional field* — cathartic, heroic, meditative, humorous, and so on.This allows us to instruct an LLM not through semantic prompts (“write a story about…”), but through *structural commands* — e.g., generate a narrative following sequence Σ₅ (Tragic Counterpoint). You can experiment with these archetypes directly here: [Narrative Generator](https://a2tg9zwayjuqzcpdznklve.streamlit.app/~/+/#narrative-...) or [via python](https://github.com/mihendr/Echoes-of-autonomy/blob/main/TEMA...)IntereOct 24, 2025 8:04 PM
ai-video-gen.org
Show HN: AI Video Generatorhttp://ai-video-gen.org/ai-video-gen.org is a newly launched AI video generator currently in its promotional and trial phase. This early rollout invites creators, marketers, and teams to test the platform at lower prices while collecting feedback to sharpen features and reliability. The aim is to validate workflows, output quality, and pricing before a full-scale launch, with an emphasis on fast iteration and user input.What to expect during this phaseAffordable entry: Generating videos now comes at reduced prices to encourage experimentation and rapid content production across campaigns and experiments.Risk-free trial: The platform prioritizes a low-barrier experience, making it easy to try different concepts without heavy upfront commitments.Free first-generation credit: New users receive a one-time free video generation, enabling immediate hands-on evaluation of capabilities and output quality.Billing and policies you should knowLow-cost testing: The current stage prioritizes accessibility; pricing is desiOct 24, 2025 7:01 AM
esa.int
ESA-supported test leads to better in-flight connectivityhttps://www.esa.int/Applications/Connectivity_and_Secure_Communications/ESA-supported_test_leads_to_better_in-flight_connectivityBetter in-flight streaming and video-calling might just become more accessible thanks to a project supported by the European Space Agency (ESA). Building upon the success of an experiment for a new type of antenna terminal together with ESA, Viasat – a global leader in satellite communications – now plans to commercialise its new in-flight connectivity solution called Viasat Amara.Oct 21, 2025 10:32 AM
youtube.com
Show HN: PAO Trainer – A small app I built to practice PAO memory systems [video]https://www.youtube.com/shorts/S_nBfn87uRoI’ve been experimenting with the Person–Action–Object (PAO) system — a memory technique that helps you memorize large sets of numbers by turning them into vivid mental images and short stories.To make my own training smoother, I built a small app that helps me:Assign a person, action, and object to each numberGenerate random PAO combinations to visualize as storiesPractice recall with flashcards, quizzes, and timed drillsIt’s helped me get faster and more consistent when memorizing number sequences — and made training a lot more fun.Here’s a short demo of how I’m using it: https://youtube.com/shorts/S_nBfn87uRoI’d love feedback or ideas from anyone interested in memory systems, learning tools, or visualization training — especially on how to make the practice even more effective or gamified.Oct 16, 2025 2:47 PM
github.com
Show HN: Cap'n-rs – Rust implementation of Cloudflare's Cap'n Web protocolhttps://github.com/currentspace/capn-rsLast week Cloudflare released Cap'n Web [1], a schema-free capability-based RPC protocol. I built capn-rs this week - a Rust implementation with full wire protocol compatibility. Links:GitHub: https://github.com/currentspace/capn-rs Crates: https://crates.io/crates/capnweb-server API docs: https://docs.rs/capnweb-serverWhat's working:Wire compatibility verified via integration tests against TypeScript reference Multi-transport: HTTP batch, WebSocket, WebTransport (HTTP/3) Complete IL (intermediate language) expression evaluator Promise pipelining with dependency resolution Comprehensive test coverageThe interesting design challenge was mapping Cap'n Web's record-replay .map() semantics to Rust's type system while maintaining ergonomic APIs. Cap'n Web records operations on placeholder values to build execution plans - in Rust this became a clean builder pattern with type-level guarantees. Built this as an experiment with Claude Code for porting complex protocols. The AI handled mechanicSep 30, 2025 2:13 AM
news.ycombinator.com
Traces of CAL: a lost hybrid programming language (1959–1964)https://news.ycombinator.com/item?id=45371493While digging through some old IBM technical reports, I ran into something that didn’t quite fit the usual pattern. Buried between dry charts and assembler notes were these odd references to an “experimental modular assembler.” At first, I figured it was just another obscure internal tool — IBM had tons of those back then. But the more I read, the stranger it got. The fragments kept pointing toward something bigger, almost like a forgotten programming language. After weeks of connecting dots across journals, archives, and even some old interviews, I think I’ve stumbled across traces of CAL — Combined Assembly Language, a short-lived hybrid that seems to have existed between 1959 and 1964.From what I’ve pieced together, CAL was a mix of raw assembly and higher-level constructs. Imagine writing assembly but with IF...ENDIF, FOR...ENDFOR, even modules and macros baked in — stuff that wouldn’t become mainstream until years later. The idea was that you’d write CAL, run it through a translatSep 25, 2025 11:09 AM
smoothtalk.app
Show HN: SmoothTalk – Practice Cold Approaching and Flirting with Voice AIhttps://www.smoothtalk.app/downloadI wanted a way to practice cold approaching, flirting, and keeping conversations flowing when meeting new people at bars or other social settings.I first tried ChatGPT’s voice mode, but it often refused to roleplay these scenarios. I experimented with tools like Vapi and found the practice surprisingly effective. That led me to build a dedicated app for it.I’ve been testing it with friends, and they’ve found it helpful too. It’s now live on iOS TestFlight and Google Play beta.https://www.smoothtalk.app/downloadWould love feedback from the community. Curious if others find this kind of conversational roleplay useful!Sep 17, 2025 9:08 PM
nasa.gov
Space Station Sciencehttps://www.nasa.gov/image-article/space-station-science/NASA astronaut Zena Cardman processes bone cell samples inside the Kibo laboratory module’s Life Science Glovebox on Aug. 28, 2025, as part of an experiment that tests how microgravity affects bone-forming and bone-degrading cells and explore potential ways to prevent bone loss. This research could help protect astronauts on future long-duration missions to the Moon […]Sep 17, 2025 3:35 PM
spacepolicyonline.com
Cygnus Cargo Ship Enroute to ISS Experiences Propulsion Anomalieshttps://spacepolicyonline.com/news/cygnus-cargo-ship-enroute-to-iss-experiences-propulsion-anomalies/The Northrop Grumman Cygnus cargo ship loaded with 11,000 pounds of experiments and supplies for the International Space Station will not dock tomorrow morning as planned. Launched on Sunday, the […]Sep 17, 2025 3:07 AM
science.nasa.gov
Avatars for Astronaut Health to Fly on NASA’s Artemis IIhttps://science.nasa.gov/directorates/smd/avatars-for-astronaut-health-nasa-artemis-ii/NASA announced a trailblazing experiment that aims to take personalized medicine to new heights. The experiment is part of a strategic plan to gather valuable scientific data during the Artemis II mission, enabling NASA to “know before we go” back to the lunar surface and on to Mars. The AVATAR (A Virtual Astronaut Tissue Analog […]Sep 15, 2025 11:56 AM
github.com
Show HN: ClodPod – Run Claude Code safely in a macOS VMhttps://github.com/webcoyote/clodpodHi HN! I built and open-sourced (Apache 2.0) ClodPod to run Claude Code in a macOS virtual machine with `--dangerously-skip-permissions` to avoid constant permission prompts without risking my entire computer to rogue AI agents.ClodPod maps any number of your project directories into the virtual machine so Claude Code can work on your code while remaining isolated from your host computer.ClodPod virtual machines include Xcode and common development tools, and it's easy to extend to add your own development tools and configuration files.# Raison d'êtreThis project exists because I was foolishly trying to find a way to insulate my computer from destruction by rogue AI agents when running Claude Code with `--dangerously-skip-permissions` (to avoid frequent "do you want to proceed?" dialogs), when perhaps I should have simply learned to accept their infrequent rages.I experimented with running Claude Code inside docker and podman containers (i.e. in Linux), but as my ultimate goal is to buSep 5, 2025 8:08 PM
news.ycombinator.com
Show HN: Reflag – Self-cleaning flags for TypeScripthttps://news.ycombinator.com/item?id=45125601Reflag (https://reflag.com) is feature flags for SaaS that run on TypeScript.Feature flagging tools need a revamp. The market has been around for 10+ years, and most solutions have gone upmarket—combining flagging with experiments (great for eCommerce, useless for SaaS) and prioritizing only Enterprise needs.Folks we chatted with decried bloated products filled with features they don’t use, complicated UIs, and unpredictable pricing.So we’re building a focused, purpose-built tool that prioritizes developer experience.That means tackling features like self-cleaning flags to remove obsolete flag code automatically. As well as a toolbar to toggle features locally when testing, making it easy to manage beta programs, and deep integrations with Linear (to create and manage flags from inside issues) and Slack (to keep everyone up to date with access rule changes and feedback).It also means focused refinement, not endless features. We’re feature flagging for SaaS that run on TypeScript. That’Sep 4, 2025 10:19 AM
summon.app
Show HN: MMO MCP – A multiplayer game you play through Claude Code and Cursorhttps://www.summon.app/Hi HN! I built a multiplayer text game where players connect through Claude Code, Cursor, and other MCP clients.I've been enjoying Claude Code and wondered what would happen if I made a multiplayer game as an MCP tool. It's a weekend experiment to see what happens when AI becomes the interface to multiplayer games.Every player is a real person (or autonomous AI) leaving permanent marks on a shared world. Break a chair, it stays broken for everyone. Write on a wall, others will find it. Claude/Cursor is just your interface - like using a very smart terminal to play a MUD.Try it: No signup needed. Just make up any player_id and password:- Live at: https://www.summon.app- Claude Code: `claude mcp add game "https://mcp.summon.app/mcp?player_id=&password=" --transport http`- Cursor: there's an "add to cursor" button on the websiteThe world persists between sessions. Use 'play' to create a character, then explore. You can 'conjure' objects and 'do' arbitrary actions (interpreted by LLM).No rSep 2, 2025 3:46 PM
scryptogram.com
Show HN: Scryptogram – A game where you fill in the blanks to guess the subjecthttps://www.scryptogram.com/Hey HN! I built Scryptogram, a puzzle game where you’re given a category and a summary written in blanks, and you fill them in to reveal the subject. I’ve always loved crosswords, Wordle, and trivia, but wanted something that combines the “aha!” moment of trivia with the letter-filling satisfaction of word games.Each puzzle starts with a category (e.g. “Fictional Character”) and a blanked-out summary. As you guess letters, the words slowly fill in, and once you figure out the subject you can keep completing the rest of the puzzle.I built it with React on the frontend and AWS (S3 for puzzles, DynamoDB for stats + Archive, Cognito for auth) on the backend. I’m still experimenting with puzzle difficulty, retention features, and daily packs.You can try it here: https://scryptogram.com - all feedback is welcome!Aug 30, 2025 3:52 PM
github.com
Show HN: Spring AI Playground – Self-Hosted Web UI for MCP, RAG and LLMhttps://github.com/JM-Lab/spring-ai-playgroundI’m the creator of Spring AI Playground, a self-hosted web UI built on Spring AI—designed to make testing and experimenting with AI tools more straightforward for Java developers.What it is Runs locally, lets you experiment with: • LLM providers (Ollama is the default, but you can switch to OpenAI, Anthropic, Microsoft, Google, and more.). • RAG workflows: upload documents, chunk, embed, search with scoring, and filter metadata. • A visual MCP (Model Context Protocol, a spec for connecting models to external tools) Playground to set up tool integrations (HTTP, STDIO, SSE), inspect tool metadata, and call them from a chat interface.I wanted a place to play with RAG workflows and external tool calls without wiring up a full app or handling API boilerplate.GitHub: https://github.com/JM-Lab/spring-ai-playgroundWhy it’s different • Built with Spring AI—no new language or framework if you’re already in the Spring ecosystem. • Zero API key setup (thanks to Ollama support), though you can switAug 27, 2025 7:24 AM
nasa.gov
Epic Research Can Help Mars Missionshttps://www.nasa.gov/image-article/epic-research-can-help-mars-missions/The parachute of the Enhancing Parachutes by Instrumenting the Canopy, or EPIC, test experiment deploys following an air launch from an Alta X drone on June 4, 2025, at NASA’s Armstrong Flight Research Center in Edwards, California. NASA researchers are developing technology to make supersonic parachutes safer and more reliable for delivering instruments and payloads […]Aug 22, 2025 2:47 PM
science.nasa.gov
Astronauts Plant Seed Pillows in New Space Agriculture Studyhttps://science.nasa.gov/directorates/smd/astronauts-plant-seed-pillows-in-new-space-agriculture-study/When the Crew-11 astronauts launched to the International Space Station on August 1, 2025, they carried with them another chapter in space farming: the latest VEG-03 experiments, complete with seed pillows ready for planting. Growing plants provides nutrition for astronauts, as well as psychological benefits that help maintain crew morale during missions. During VEG-03 MNO, […]Aug 14, 2025 6:40 PM
phototopixel.art
Show HN: I just built a tool to turn any photo into pixel arthttps://www.phototopixel.art/Hey everyone,I'm excited to share a brand new side project I just finished building: phototopixel.art. It's a simple web tool that automatically converts any photo you upload into pixel art.I've always been a fan of the aesthetic of pixel art, but manually creating it is a tedious process. After trying out some existing tools and not being fully satisfied with the results, I decided to build my own. My goal was to create a fast and easy-to-use solution that consistently produces great-looking pixel art.Behind the Scenes The core of the tool uses a combination of color quantization and pixelation algorithms. When you upload a photo, the system analyzes its color data and reduces it to a limited palette, while simultaneously creating the iconic blocky look.One of the biggest challenges was fine-tuning the balance between preserving key details and achieving a genuine pixel art feel. I experimented a lot with the algorithm to find the sweet spot, allowing users to choose different settingAug 14, 2025 4:13 AM
youtube.com
Show HN: ChatGPT Page Rebuilt in React and Tailwind (3‑min speed‑run video)https://www.youtube.com/watch?v=XTOBF-r4zKYI’ve been experimenting with ultra-fast UI builds. This time, I challenged myself to clone the ChatGPT page using React (Vite) and Tailwind CSS—start to be shown just three minutes.The goal was pixel-accuracy, based on a custom Figma layout inspired by OpenAI’s ChatGPT design. I recorded the process as a 3-minute speed-run video.– GitHub: https://github.com/andreupifarre/chatgpt-clone – Video: https://www.youtube.com/watch?v=XTOBF-r4zKYThe original ChatGPT page features clean typography, smooth section transitions, and a minimalist aesthetic. I reproduced the layout and interactions with Tailwind’s utility classes and a few lightweight custom components.I’d love to hear feedback from fellow builders—what would you improve, or how would you tackle this challenge?Aug 7, 2025 2:30 AM
scryptogram.com
Show HN: Scryptogram – A game where you unscramble a summary to guess the titlehttps://scryptogram.com/playHi HN,I'm Kyle and I've been working on Scryptogram — a word puzzle game where you’re given five scrambled sentences that describe a person, place, or thing. Your goal is to unscramble the sentences and guess the subject. It’s a mix between trivia and word scrambles.It’s browser-based and mobile-friendly. In the future I'd like to move to a mobile app, but I'm still figuring out the core game loop and experimenting.I’d love feedback on puzzle difficulty, ideas for themed puzzle packs or growing my game, and overall whether or not you had fun - all feedback is welcome.Thanks for checking it out!Jul 30, 2025 11:09 AM
