Show HN: Project Chimera – Hybrid AI Agent Combining LLM, Symbolic, and Causal https://bit.ly/46cSbxV

Show HN: Project Chimera – Hybrid AI Agent Combining LLM, Symbolic, and Causal Over the past few months, I’ve been building Project Chimera — a prototype AI agent that integrates three reasoning paradigms into a single decision-making system: - Neuro (LLM) for creative strategy generation - Symbolic for enforcing business rules and safety constraints - Causal for predicting the long-term impact of actions I tested this hybrid agent in a 52-week realistic e-commerce simulation with dynamics such as price elasticity, brand trust, ad ROI, and competitor effects. Key results: - Outperformed LLM-only and LLM+Symbolic baselines - Avoided catastrophic losses by simulating long-term causal impact - Achieved nearly 2× profit improvement through periodic causal retraining Resources: - Live demo: https://bit.ly/41Krpfd - GitHub: https://bit.ly/41Krq2L I’d appreciate feedback from the HN community — especially on methodology, experiment design, and potential real-world applications beyond e-commerce. https://bit.ly/41Krq2L September 9, 2025 at 09:38PM

Show HN: Ion, a Rust/Tokio powered JavaScript runtime for embedders https://bit.ly/3JTrJ5c

Show HN: Ion, a Rust/Tokio powered JavaScript runtime for embedders https://bit.ly/46u1JpE September 7, 2025 at 12:21PM

Show HN: Vizza – Interactive, Beautiful Simulations https://bit.ly/4maSsrt

Show HN: Vizza – Interactive, Beautiful Simulations I recently released a new version of my hobby project Vizza. It's a free desktop app of various beautiful visualizations. I've been working on it for several months now and I wanted to share it with y'all. https://bit.ly/45WkTED September 9, 2025 at 02:20AM

Show HN: Attempt – A CLI for retrying fallible commands https://bit.ly/3JRFp0x

Show HN: Attempt – A CLI for retrying fallible commands Hi HN, Here's a tool I wrote for retrying fallible commands. Nothing groundbreaking here, this is a tool that's been made many times (and several have been submitted to Show HN). Though this one does have a more comprehensive feature set than most. I hope one or two people will find it useful. I wrote `attempt` for two reasons: - To have a more featureful alternative to `wait-for-it.sh` for use in Docker Compose. Specifically to apply migration scripts to a database that may not be up yet. I wanted to be able to inspect the error messages from my migration tool & retry on connection errors. - To test a hypothesis I had that a good way to make a CLI was to copy the API of a good library (in this case, `tenacity`). I want to write a blog post at some point to discuss this at length, but the tl;dr is that I believe it was a success. Here are some usage examples: https://bit.ly/46uBpvG There may not be much to discuss for such a small tool, but I am open to all feedback and am happy to answer any questions. Cheers, Max https://bit.ly/4ptrjTs September 9, 2025 at 02:37AM

Show HN: Shadcn-native shadcn UI for React Native https://bit.ly/4pdJGLX

Show HN: Shadcn-native shadcn UI for React Native After trying to find a ui Library which works which works well with Expo and react native web. I decided to create my own. Cross platform: iOS, Andriod, and the web with Windows and macOS support on the way. Our components are accessible on Native and the web. To achieve web accesibility we use react-aria This is what differentiates us even beyond shadcn/ui! Our components include extra variants so you can adjust error, loading, borderRadius, and style without writing any extra tailwind. Storybook: We have included a storybook to let you play with all the variants. Tested: We write unit tests for all the components to ensure they are working as expected. Customizable: You own the code and the implementation. You can customize anything you want. Get a live demo with storybook here https://bit.ly/46tB78g... https://bit.ly/4pdgl4b September 8, 2025 at 05:58PM

Show HN: 500+ Cyber Security Interview Questions Quiz https://bit.ly/41IQh70

Show HN: 500+ Cyber Security Interview Questions Quiz I put together a cybersecurity quiz covering most major topics. It works as both a learning tool and an easy way to test your knowledge. Some areas have lighter coverage due to cybersecurity's broad scope. Let me know if you find questions that need better answers. Enjoy! https://bit.ly/46bou0i September 8, 2025 at 02:16AM

Show HN: GoSocket – A Simple WebSocket Framework for Go https://bit.ly/42lq9zc

Show HN: GoSocket – A Simple WebSocket Framework for Go Hi HN, I built GoSocket, a small library that helps you set up WebSocket servers in Go with almost no boilerplate. It lets you start a server in a few lines of code, handle connections, broadcast to rooms or clients, and add middleware. JSON is supported now, Protobuf and MessagePack are planned. Example: ws := gosocket.NewServer() ws.WithPort(8080). WithPath("/ws"). OnMessage(func(c gosocket.Client, m gosocket.Message, ctx *gosocket.HandlerContext) error { c.Send(m.RawData) // echo return nil }) log.Fatal(ws.Start()) Repo: https://bit.ly/3VADyj9 It’s still pre-1.0, so I’d love feedback, testing, and contributions. https://bit.ly/3VADyj9 September 8, 2025 at 02:00AM

Show HN: Simple markdown resume; fancy rendered HTML/PDF https://bit.ly/3Ib19DX

Show HN: Simple markdown resume; fancy rendered HTML/PDF - Plain-text markdown is easy to update and human/machine-readable - Clever CSS styling and animated logo[1] make the HTML version stand out - PDF version: simply generate by printing this page from the browser (optimized for printing) - See how it was done: https://bit.ly/3Ib7EGT... [1]: https://bit.ly/3VErmxO https://bit.ly/3V5GSCH September 7, 2025 at 07:43PM

I'm Making a Beautiful, Aesthetic and Open-Source Platform for Learning Japanese https://bit.ly/4n9WXUx

I'm Making a Beautiful, Aesthetic and Open-Source Platform for Learning Japanese https://bit.ly/42gnKpx September 6, 2025 at 10:19PM

Show HN: Send kind and aspirational words to a stranger who needs it https://bit.ly/4p9bAbJ

Show HN: Send kind and aspirational words to a stranger who needs it It is simply a reason to be kind to one another, for kindness may be the only medicine for the world’s pain. https://bit.ly/3JQsM5V September 7, 2025 at 12:32AM

Show HN: Inception: Automatic Rust Trait Implementation by Induction https://bit.ly/4m5UqZP

Show HN: Inception: Automatic Rust Trait Implementation by Induction Hi HN, I thought this would be a good place to share a little puzzle I've been working on. Inception is a Rust library that helps you share behaviors in Rust using structural induction. Practically, this means that instead of having a derive macro for each behavior, a single derive can be used to enable any number of behaviors. It doesn't do this using runtime reflection, but rather type-level programming - so there is monomorphization across the substructures, and (at least in theory) no greater overhead than with macro expansion. While there are a lot of things missing still and the current implementation is very suboptimal, I'd say it proves the general concept for common structures. Examples of Clone/Eq/Hash/etc replicas implemented in this way are provided. The code is not idiomatic, which is my biggest reservation about continuing this work. It was fun to prove, but is not so fun to _improve_, as it feels a bit like swimming upstream. In any case I hope some of you find it interesting! https://bit.ly/4gaLgda September 6, 2025 at 05:01AM

Show HN: CompareGPT – Spotting Hallucinations by Comparing Multiple LLMs https://bit.ly/46giyDw

Show HN: CompareGPT – Spotting Hallucinations by Comparing Multiple LLMs Hi HN I’m Tina. One frustration I keep running into with LLMs is hallucinations: answers that sound confident but are fabricated. Fake citations, wrong numbers, even entire “system reports.” So I’ve been building CompareGPT, which tries to make AI outputs more trustworthy by: Putting multiple LLMs side by side for the same query Making it easy to see consistency (or lack of it) Helping catch hallucinations before they waste time or cause harm link here： https://bit.ly/3I8Br2Y . We’ve opened a waitlist and would love feedback, especially from folks working with LLMs in research, finance, or law. Thanks! September 6, 2025 at 12:26AM

Show HN: Scrape Congressional Stock Trading https://bit.ly/47pPJGR

Show HN: Scrape Congressional Stock Trading Scrape the most recent congressional stock trading. https://bit.ly/47nC82K September 5, 2025 at 07:48AM

Show HN: A credibility-based social platform (no Likes) to fight misinformation https://bit.ly/4lYibDa

Show HN: A credibility-based social platform (no Likes) to fight misinformation Most people now get their news from social feeds — but those feeds reward popularity, not accuracy. Misinformation spreads fast, and even well-intentioned users often can’t tell what’s reliable. I’ve been working on a different approach: a social/news platform where every post carries a credibility score. Instead of likes or shares, users assess posts by linking to supporting or refuting sources. Credibility then updates across posts, users, and domains in real time. A few things that might interest HN: - Anonymous/pseudonymous accounts (no personal brands driving popularity). - Credibility > virality: feeds are sorted by time & trustworthiness, not engagement. - URL and domain-level scoring: credibility of sources builds over time. - Four feeds: Front Page, Bullpen, Cred Desk, and Subscriptions (you can filter by credibility percentile). It’s in public beta here: https://bit.ly/3K61sjX Curious what HN thinks: - How might this system be gamed or abused? - What are your thoughts on pseudonymous usernames? - What would make it more useful for people who actually want reliable news? https://bit.ly/3K61sjX September 5, 2025 at 03:32AM

Show HN: Invocly – Convert PDF, DOCX, and TXT files into lifelike speech https://bit.ly/4n753NH

Show HN: Invocly – Convert PDF, DOCX, and TXT files into lifelike speech I’ve been building Invocly over the past few weeks — a tool that transforms entire documents into natural-sounding audio. Instead of copy-pasting text, you can just upload or share a document and listen to it on the go. Features Upload documents and convert them directly into audio Clone your own voice with short samples for a personalized experience Clean and simple interface — minimal setup required Fast iteration — we’re shipping improvements quickly based on user feedback I’d love to hear feedback from the HN community, especially on what formats or integrations would be most useful. Try it here: https://bit.ly/4pdRzkG https://bit.ly/3JNyeqb September 5, 2025 at 12:34AM

Show HN: Skada – Automate any workflow with a single prompt https://bit.ly/3HUjzZI

Show HN: Skada – Automate any workflow with a single prompt https://bit.ly/3UW5ttI September 4, 2025 at 09:22AM

Show HN: A roguelike game that runs inside Notepad++ https://bit.ly/4lWVHCo

Show HN: A roguelike game that runs inside Notepad++ https://bit.ly/465yTe8 September 1, 2025 at 01:51AM

Show HN: Chat with Claude Code on iMessage with Instaline https://bit.ly/468Yz9G

Show HN: Chat with Claude Code on iMessage with Instaline We've been wanting to give agents a phone number for sms / WhatsApp chats for very long, and today we finally built it. Dm me if you want to test it out -- we are still working on the infra / backend to generate more numbers. And if you have experiences building telecommunication infra or happen to be wanting the same thing I'd love a chat. Appreciated! https://twitter.com/xdotli/status/1963447281228628278 September 4, 2025 at 04:46AM

Show HN: TwoTickets – meet through events, not swipes https://bit.ly/4neBut5

Show HN: TwoTickets – meet through events, not swipes The idea for TwoTickets started when my wife and I had two tickets to Hamilton, and she couldn’t make it at the last minute. I realized how awkward it is to want to go to a concert, game, or show but not have someone to share it with — and how current apps either constrain you to your circle or to endless swiping. On TwoTickets, you Twoot an event in order to connect with others around that shared plan. The flow is simple: Twoot → Match → Chat → Decide → Go. You don’t see profiles or matches until you Twoot events, so plans come first and profiles second. The aim is to make meeting new people more natural: the event itself is the ice-breaker, not a random line in a bio. We’re in soft launch now and would love feedback from HN — does this “event-first” approach resonate with you, and where do you see the pitfalls? Paul Graham once said that all dating apps are really just matching apps. I wonder: how close is this to a solution to that assertion — although TwoTickets is broader than dating. *Links:* - Website: https://bit.ly/3I2UR9s - iOS App: https://apple.co/4p6OCSE... September 3, 2025 at 11:41PM

Show HN: Tail Lens – Visually edit tailwind css dev tool https://bit.ly/4p6cmX1

Show HN: Tail Lens – Visually edit tailwind css dev tool This tool lets you live-edit Tailwind CSS classes directly in the browser. Inspect, navigate the DOM, get real-time class suggestions, tweak, preview, copy - all without switching to your code editor. Supports both v3 and v4 versions of Tailwind CSS. Try it live here - https://bit.ly/4l5f4JF September 3, 2025 at 06:40AM