Show HN: I asked Gemini2.5 pro to create a "bro version" of a stoic book https://ift.tt/5SLWeIc

Show HN: I asked Gemini2.5 pro to create a "bro version" of a stoic book https://ift.tt/J76gK5S April 15, 2025 at 11:06PM

Show HN: ActorCore – Stateful serverless framework that runs anywhere https://ift.tt/s3QuqwD

Show HN: ActorCore – Stateful serverless framework that runs anywhere TL;DR: ActorCore is a stateful serverless framework that can be deployed to Rivet, Cloudflare, Bun, Node.js and more. It's the easiest way to build stateful, AI agent, collaborative, or local-first applications. Hey HN! A few months ago we launched Rivet Actors ( https://ift.tt/dQ2YUpP ) as an open-source alternative to Cloudflare Durable Objects. Shortly after launching, we realized our goal is not to win over existing Durable Objects developers, but rather to grow the stateful serverless ecosystem. For context – "stateful serverless" is effectively the actor model with persistent state attached. Think Lambda functions with local storage & runs indefinitely. It's a a technology that’s gaining traction to ship faster, achieve higher performance, and outscale Postgres. The most widely used implementation is Cloudflare Durable Objects. In the process of talking to developers, we kept hearing three common concerns: - Vendor lock-in: Developers are hesitant to adopt a new programming model if there's no clear off-ramp. While it's straightforward to migrate a Postgres database, stateful serverless platforms like Rivet Actors or Durable Objects can feel locked-in due to lack of viable alternatives. - Ecosystem: Choosing a well-known database like Postgres comes with a mature ecosystem. Adopting a new model means rebuilding tooling and patterns from scratch. - Conceptual gap: Many developers have spent their entire careers designing systems with intentionally separated state and compute. A model that merges the two can feel backwards at first. After hearing these concerns again and again, we came to the conclusion that the best solution was to build a framework that works with as many platforms as possible to reduce lock-in (concern #1) and grow a shared ecosystem of tools (concern #2). It turns out, we already had a battle-tested framework built on top of Rivet Actors that we’ve been using for years. (It has a long, funky history beyond Rivet in gaming I won't get into here.) Thus, we split out the framework in to a new repo, added support for four platforms (easier said than done), and called it ActorCore. It gives developers multiple platforms to choose from when adopting stateful serverless and creates a foundation for a broader, cross-platform ecosystem. However, this still leaves concern #3: the conceptual gap. While this isn't something we can solve with a framework, I personally spend ~40% of my time working on docs, content, and examples to help resolve this. ActorCore is also panning out to be community-driven as hoped, which enables more people to try and share their experience with stateful serverless. Give ActorCore a try, read the roadmap, and let us know where we can improve documentation. If you're hesitant about trying stateful serverless, I'd love to learn more in the comments. Consider giving us a star on GitHub: https://ift.tt/GpWVUu7 https://ift.tt/CwRDHy4 April 14, 2025 at 08:27PM

Show HN: I made a math puzzle game. Hope you like it https://ift.tt/adxIq3F

Show HN: I made a math puzzle game. Hope you like it I've been playing with this for quite some time and I think it's finally ready for public consumption. All feedback welcome. https://ift.tt/w5kRahT April 11, 2025 at 11:56PM

Show HN: Cigarette – a Safari extension that hides ads on X, Reddit, & LinkedIn https://ift.tt/n8KVT47

Show HN: Cigarette – a Safari extension that hides ads on X, Reddit, & LinkedIn https://ift.tt/wGV1yri April 14, 2025 at 12:14AM

Show HN: Crystal, the most accurate U.S. gov't data search tool https://ift.tt/OKzpnHe

Show HN: Crystal, the most accurate U.S. gov't data search tool Hi everyone! We're relaunching Crystal, which lets you search and analyze 300k+ government datasets using plain English. For example, prompting "Air quality since 2020 in NYC" will find the most relevant datasets for you. We find it's way better than any search tool out there today, like data.gov. We're hoping anyone who uses public data as a resource, like researchers, consultants, journalists, etc. will find it helpful. Crystal is straightforward - it's in alpha, so there's only a few queries per person, and the app itself is in its infancy. We're invested in making this better for people, and we'd love feedback + beta signups - you can provide either via https://ift.tt/35pbhZz or down below! If you'd like to partner with us more closely or have other thoughts, please email us at cedric@crystal.info or ari@crystal.info https://ift.tt/PQtY7v9 April 13, 2025 at 11:53PM

Show HN: AI quiz generator from any topic or book in seconds https://ift.tt/JvyjDw2

Show HN: AI quiz generator from any topic or book in seconds https://www.wiyomi.com April 10, 2025 at 10:57AM

Show HN: Downr – An All-in-One Social Media Downloader for 50 Platforms https://ift.tt/bId7TEz

Show HN: Downr – An All-in-One Social Media Downloader for 50 Platforms https://downr.org April 12, 2025 at 04:36PM

Show HN: OctAPI – Visualize API Routes Directly in VS Code https://ift.tt/KmhbkHp

Show HN: OctAPI – Visualize API Routes Directly in VS Code Started noticing issues while working with friends that I thought only I was encountering: spending too long manually adding routes to postman, getting lost looking for a single route in the sea of files and thought Hey, I can fix that (I think?) So OctAPI is a VSCode extension that automatically detects and displays API routes from a local project (currently supports Express.js, NestJS, Next.js, Koa, Flask, and FastAPI), it filters and groups them, generates a Postman export JSON file, and adds to favs. It doesn't run your code and it all stays in your machine A friend literally screamed when they were live testing it for me lol It's open source ( https://ift.tt/LJnNIAD ) and here's its landing page ( https://ift.tt/G6ObNMy ) I'm hoping to add custom tags, more frameworks support and even AI features. https://ift.tt/oeHEUMF April 13, 2025 at 01:48AM

Show HN: memEx, a personal knowledge base inspired by zettlekasten and org-mode https://ift.tt/nxC1lPv

Show HN: memEx, a personal knowledge base inspired by zettlekasten and org-mode https://ift.tt/szfmOtg April 13, 2025 at 12:32AM

Show HN: Pg_CRDT – CRDTs in Postgres Using Automerge https://ift.tt/CerG4JI

Show HN: Pg_CRDT – CRDTs in Postgres Using Automerge https://ift.tt/iE0TKG3 April 11, 2025 at 10:23PM

Atari Missile Command Game Built Using AI Gemini 2.5 Pro https://ift.tt/HS2a4cA

Atari Missile Command Game Built Using AI Gemini 2.5 Pro https://ift.tt/fp9W40M April 7, 2025 at 11:48AM

Show HN: Lunon – Instant model switching across LLMs https://ift.tt/867is5M

Show HN: Lunon – Instant model switching across LLMs Hey HN! We built Lunon to make LLM development way less of a headache. Ever wanted to see how different models handle the same prompt without all the setup hassle? That's what we fixed. Our API lets you compare Claude, GPT, Mistral and others in real-time with just a few lines of code. No more complex infrastructure or managing multiple API connections - we handle all that boring stuff behind the scenes. Plus, you can cut costs by intelligently routing requests to the right model for each task. Use the powerful (expensive) models only when you really need them. If you're building with LLMs and tired of the integration headaches, would love to hear feedback! https://lunon.com/ April 11, 2025 at 11:46PM

Show HN: I built a tool to manage and compare credit card rewards https://ift.tt/GhxUPTX

Show HN: I built a tool to manage and compare credit card rewards This is a free tool that helps you manage and visualize your credit card rewards across different categories. You can input the cards in your wallet and see how they complement each other, spot gaps in your setup, and also see the best card to use for a given merchant. I’m also a founder at OneCard, where we’re building a smart card that’ll eventually handle all of this automatically, routing each purchase to the best card in real-time. Would love feedback from the HN community! https://ift.tt/GaX07MN April 11, 2025 at 02:54AM

Show HN: Calculate confidence score for OpenAI JSON output https://ift.tt/8qmcKjE

Show HN: Calculate confidence score for OpenAI JSON output https://ift.tt/xKG3dZu April 10, 2025 at 08:46PM

Show HN: I built an app that reduces podcast preparation effort by 95% + https://ift.tt/VFYWxjM

Show HN: I built an app that reduces podcast preparation effort by 95% + https://ift.tt/mHaKzht April 10, 2025 at 11:22PM

Show HN: Obelisk – a WASM-based deterministic workflow engine https://ift.tt/L4heV5C

Show HN: Obelisk – a WASM-based deterministic workflow engine A lightweight engine for durable execution / deterministic workflows I built with Rust, wasmtime and the WASM Component Model. Its main use is running reliable, long-running workflows that can automatically resume after failures. Looking for feedback on the approach and potential use cases! https://obeli.sk/ April 10, 2025 at 12:54AM

Show HN: Repo Roast – a real-time feed of the funniest comments on GitHub https://ift.tt/jTJsgWR

Show HN: Repo Roast – a real-time feed of the funniest comments on GitHub Hey HN - I'm Mason, and I'm excited to share a fun side project I've been working on recently: Repo Roast. For me, Github often feels like a serious (and sometimes soulless) place. I built this website to showcase the human, silly side of developers. Repo Roast is built on top of LLM-powered GitHub analytics tooling we’re developing internally at Merit Systems [0]. One of the historically cited weak points for LLMs has been their sense of humor. I found that with the right prompt, at scale, they mostly can _identify_ humor pretty well. We experimented with a couple of different models to tune the cost/effectiveness and eventually landed on a strategy where we have gpt-4o-mini do a very light filter pass to reduce the number of calls to GPT-4o to do the actual humor scoring. Interestingly, our first prompt attempts ended up surfacing wayyy more aggressively NSFW content, which is funny that this happens despite all the censoring that OpenAI is doing. So far we have processed the last 90 days of historical comments and continuously process new ones every hour. We theoretically can run this against a wider historical window given there is sufficient interest to justify the costs! Repo Roast is in no way intended to make you a better or more productive dev. You can use it as a leaderboard or hiring tool (if you’re looking for personality), or just a way to distract yourself! If you've had any funny Github interactions, I'd love if you shared them below. Cheers! --Mason [0] https://ift.tt/gbWsXQu https://ift.tt/yMjqRnN April 10, 2025 at 12:40AM

Show HN: Aqua Voice 2 – Fast Voice Input for Mac and Windows https://ift.tt/kSFuZUa

Show HN: Aqua Voice 2 – Fast Voice Input for Mac and Windows Hey HN - It’s Finn and Jack from Aqua Voice ( https://withaqua.com ). Aqua is fast AI dictation for your desktop and our attempt to make voice a first-class input method. Video: https://ift.tt/o3IHVuG Try it here: https://ift.tt/X6mExOb Finn is uber dyslexic and has been using dictation software since sixth grade. For over a decade, he’s been chasing a dream that never quite worked — using your voice instead of a keyboard. Our last post ( https://ift.tt/DOWXZNP ) about this seemed to resonate with the community - though it turned out that version of Aqua was a better demo than product. But it gave us (and others) a lot of good ideas about what should come next. Since then, we’ve remade Aqua from scratch for speed and usability. It now lives on your desktop, and it lets you talk into any text field -- Cursor, Gmail, Slack, even your terminal. It starts up in under 50ms, inserts text in about a second (sometimes as fast as 450ms), and has state-of-the-art accuracy. It does a lot more, but that’s the core. We’d love your feedback — and if you’ve got ideas for what voice should do next, let’s hear them! https://withaqua.com April 9, 2025 at 10:01PM

Show HN: I built a tool that deconstructs websites to reveal their tech stack https://ift.tt/E0S5bsu

Show HN: I built a tool that deconstructs websites to reveal their tech stack Hi HN, I built https://unbuilt.app to solve a problem I frequently faced as a developer: identifying the technology stack behind websites, especially those using newer frameworks and tools. While existing solutions rely on pre-saved data or signature databases, Unbuilt performs a fresh analysis by actually loading and examining the website code in real-time. This means it can detect cutting-edge technologies that often get missed by other analyzers. Technical details: - Uses Playwright to visit sites and analyze their resources - Queue-based architecture for handling concurrent requests - Optimized patterns for detecting modern frameworks (Next.js, Vite, React Compiler, etc.) - Dual-layer caching system for both performance and result sharing The tool is completely open-source and free to use. There are no premium tiers or usage limits. I built it because I believe developers deserve better tools for understanding the web ecosystem. I'd appreciate any feedback, particularly on detection accuracy and the types of technologies you'd like to see added. If you're interested in contributing, all pattern detection logic is designed to be easily extensible. Link to repo: https://ift.tt/wo0x69Z https://unbuilt.app/ April 9, 2025 at 10:57PM

Show HN: My mom was unimpressed with my blog. What do you think? https://ift.tt/j5WQ16k

Show HN: My mom was unimpressed with my blog. What do you think? I recently launched my personal tech blog and proudly showed it to my mom. Her response? "It's... fine." Now I need your brutally honest feedback! Blog URL: https://simonaking.com Github: https://ift.tt/bhscdoP PS: Every visitor gets my mom one step closer to understanding what I actually do for a living! https://simonaking.com/ April 9, 2025 at 11:30AM