Show HN: Keep your PyTorch model in VRAM by hot swapping code https://bit.ly/3GuYVxX

Show HN: Keep your PyTorch model in VRAM by hot swapping code https://bit.ly/3Y7ANaO April 21, 2025 at 01:21AM

Show HN: LLM Shell Tools – AI-powered command line helpers(open source + local) https://bit.ly/4435FwW

Show HN: LLM Shell Tools – AI-powered command line helpers(open source + local) Hey HN, I ve been playing around with LLM integrations for the shell and I have a tiny set of shell tools that use LLMs to improve my CLI experience. I’ve been using it while building and it’s already proving usefu to me. Right now it includes: 1. Command Not Found Hook Catches “command not found” errors and asks an LLM to suggest what might have gone wrong (e.g. typos, missing tools, etc), works for bash and zsh 2. Git Commit LLM A wrapper for git commit that suggests clearer commit messages based on your staged changes. It’s helped me avoid a bunch of lazy messages like “fix stuff”. Prereqs: • OpenAI API key • Bash or Zsh • curl and jq Still minimal and hacky—but I’d love feedback or ideas. Especially curious if others would find this helpful or have feature suggestions. Repo: https://bit.ly/42P6Yyt https://bit.ly/42P6Yyt April 20, 2025 at 09:04AM

Show HN: Hyprnote – VSCode for Meeting Notes (Open-Source and Local-First) https://bit.ly/440Wjlt

Show HN: Hyprnote – VSCode for Meeting Notes (Open-Source and Local-First) Hi HN. This is Yujong from Hyprnote. Hyprnote is an open-source, local-first macOS app that you can use for meetings. - It uses Mic + System Audio for audio sources. - Whisper (small-en-q8) + Llama (3b-q8) for transcription + summarization. Some interesting bits: - Extension & plugin system that you can use to create widgets (inspired by VSCode). - Built with Libsql. Will enable DB sync across cloud/devices in the future. There are still some rough edges, but I thought it is worth sharing the concept and getting feedback. We have an interesting onboarding video. Please try it out! ```bash brew tap fastrepl/hyprnote && brew install hyprnote --cask ``` If you want to see how it looks first - https://www.youtube.com/watch?v=-apfueHQHBk https://bit.ly/4jfgS25 April 20, 2025 at 05:39AM

Show HN: EyesOff – Alerts you when someone peeps at your screen https://bit.ly/42pXkSY

Show HN: EyesOff – Alerts you when someone peeps at your screen Hey HN, this is Yusuf. I've built a privacy focused macOS app which makes use of a locally running neural network (YuNet), to notify you if other people are looking at your screen. YuNet runs fully on-device with no data leaving your computer. The app utilises a 230kb facial detection model, which takes images from your webcam and checks for any faces entering the viewing field of your webcam. If the number of faces exceeds the threshold an alert will be shown. Built with Python + PyQt, the YuNet code comes from OpenCV. Currently it's a macOS app only, however I will be widening access to windows devices soon. Link + Source code: https://bit.ly/4cLFD3O I'd love your feedback on the app, I look forward to reading your comments on thoughts and future directions you'd like to see! https://bit.ly/4cLFD3O April 19, 2025 at 08:44PM

Show HN: Make your bookmarks smarter with AI https://bit.ly/4ihLn6d

Show HN: Make your bookmarks smarter with AI https://apple.co/42c6CBP April 19, 2025 at 04:55AM

Show HN: New world record – verified Goldbach Conjecture up to 4*10^18+7*10^13 https://bit.ly/4jDGGVx

Show HN: New world record – verified Goldbach Conjecture up to 4*10^18+7*10^13 Achieved a new world record in verifying the Goldbach Conjecture using grid computing, by extending the verification up to 4 quadrillion (4×10¹⁸) + 70 trillion (7×10¹³). My grid computing system - Gridbach is a cloud-based distributed computing system accessible from any PC or smartphone. It requires no login or app installation. The high-performance WASM (WebAssembly) binary code is downloaded as browser content, enabling computation on the user’s browser. [Website] https://bit.ly/42ExN7c [Medium] https://bit.ly/4iqgCMu... https://bit.ly/4426ia2 April 19, 2025 at 07:11AM

Show HN: I made a game using mazes generated by ChatGPT https://bit.ly/3YGX5QX

Show HN: I made a game using mazes generated by ChatGPT https://bit.ly/3YEBQzb April 18, 2025 at 11:59PM

Show HN: I rebuilt my AI browser game using 100 pieces of feedback from HN https://bit.ly/4jDaMbx

Show HN: I rebuilt my AI browser game using 100 pieces of feedback from HN In February I posted a rough AI browser‑game prototype and asking game dev tips. Then I got about 100 comments that really helped. I went back, rewrote most of it, and here’s the current state: What’s new - Endless world with mountains, lakes, and altitude‑based snow - Living systems – trees grow, bears roam and charge if you trespass - View switch – press V for first‑ or third‑person on the fly - Guest mode – no login, just play - Type‑anything crafting – enter “wooden glider,” “big wall,” “steak,” etc with proper materials; AI invents the recipe and stats Still many things are raw and not-ready, but I want to keep sharing progress and gathering feedbacks. If you try it, I’d love to hear where it falls apart first and whether the core loop feels fun. Thanks for any feedback! https://bit.ly/4jIhD3Q April 18, 2025 at 09:16AM

Show HN: I built an AI-powered packaged food ingredients list vegetarian scanner https://bit.ly/42NPD94

Show HN: I built an AI-powered packaged food ingredients list vegetarian scanner Hey HN. I have been a vegetarian for the past ten years. At the grocery store, I often find myself manually scanning the ingredient lists on packaged foods, relying on my own knowledge and eyesight to identify non-vegetarian or unfamiliar ingredients that might affect my diet. That's why I built Veri.fy, a go-to vegetarian food scanner powered by Google Vision API and Gemini AI. It helps scan ingredient lists on packaged foods and classifies each ingredient as vegetarian or not. Have a quick look and let me know your thoughts. Reynard https://bit.ly/3RWcnNU April 18, 2025 at 08:06AM

Show HN: Happy Little Monoliths, First Edition https://bit.ly/3YCvvnM

Show HN: Happy Little Monoliths, First Edition https://bit.ly/4cCS3Ld April 18, 2025 at 05:44AM

Show HN: Stadium Crowd Scale Visualise Large Groups of People https://bit.ly/3Y7iPFn

Show HN: Stadium Crowd Scale Visualise Large Groups of People Visualize large numbers of people using 100,000-person capacity stadiums. Causal Vibe-coded WIP with Three.js looking for feedback :) https://bit.ly/4cEi5xE April 14, 2025 at 10:55AM

Show HN: Git-chain: A way to manage branch dependencies in Git https://bit.ly/42MAy7D

Show HN: Git-chain: A way to manage branch dependencies in Git https://bit.ly/4lFTyMS April 17, 2025 at 08:42AM

Show HN: Elfconv – Linux Apps to High-Performance WASM Binary Translator https://bit.ly/4jlYIMs

Show HN: Elfconv – Linux Apps to High-Performance WASM Binary Translator This post introduces elfconv, a binary translator that converts Linux applications into WebAssembly. repo: https://bit.ly/3EpuLf3 Recently, performance has improved dramatically. In our LINPACK benchmark, the Wasm generated from ELF/AArch64 by elfconv now runs at roughly 60–80% of the performance of the Wasm directly compiled from source code. This shows that elfconv can produce WebAssembly with practical, real‑world performance! Furthermore, compared to QEMU running in the browser, it achieves approximately 68× the performance. Benchmark test: https://bit.ly/4jEFCAQ QEMU in the browser: https://bit.ly/3Gp0Kwo Please give it a try, and feel free to submit any issues or pull requests! https://bit.ly/42OnLld April 17, 2025 at 07:48AM

Show HN: We made a VS Code extension to recreate a debugger experience from logs https://bit.ly/3YAroIV

Show HN: We made a VS Code extension to recreate a debugger experience from logs A month ago [1], we made an MCP server so Cursor can debug Node.js on its own. We emailed every person that starred our repository [2] and learnt that frontend devs really want to give Cursor access to browser logs, and that backend devs (our intended audience) do not use debuggers nearly as much as we thought. We interviewed friends across startups and discovered that they use logs to debug, because they can’t run services locally on their machine. The services (1) require too much disk, RAM, or CPUs to run locally, (2) have too many service dependencies (think microservices), or (3) are a faff to instantiate locally with a debugger. Instead, our friends instrument their services, deploy them to staging environments via Kubernetes, and then query the logs via data stores (think Grafana, Axiom.co, Google Cloud Logging, etc) or directly (think Kubernetes logs). We thought: "What if we could recreate a debugger-like experience from logs?". That would save them from browsing logs and trying to make sense of them outside the context of the code base. We looked into it and made a VS code extension that lets you (1) import logs, (2) go to the line of code associated with a log, and navigate up/down the probable call stack associated with a log. It's a prototype, but if you're interested in trying it out, we'd love some feedback! GitHub: github.com/hyperdrive-eng/traceback --- References: [1]: https://bit.ly/4iBtwZ1 [2]: 140 Github stars, 69 emails sent (the rest were bots), 19 responses received (= 28% response conversion), 4 meetings held (= 21% meeting conversion). https://bit.ly/3Y1eofj April 17, 2025 at 12:07AM

Show HN: Landing Lab – A growing collection of landing page templates https://bit.ly/3Y1U2Tj

Show HN: Landing Lab – A growing collection of landing page templates I've gathered the landing pages I've built over time and am adding new one every week. Each template comes with a complete lorem ipsum structure that you can easily customize for any type of business. Pricing is simple: $5 per template or $19 for 1-year access to all current and future templates. Built with Next.js and Tailwind CSS - clean, fast, and optimized for conversions. https://bit.ly/4lyNxBo April 16, 2025 at 01:33PM

Show HN: I Made Bagel Font https://bit.ly/4414OwV

Show HN: I Made Bagel Font Hey HN, I recently made 3d style Bagel web font (with some more styles) from scratch, and wanted to share the process in case anyone's interested in experimenting or giving feedback. You can play around by typing https://bit.ly/3Rni8nH [Backstory] I was experimenting with Stable Diffusion + ControlNet to generate icons. To my surprise, generating letters this way was actually better than using traditional 3D tools like Blender for this purpose. That led to the idea: what if I could turn into an actual real working font? I found a few tools, but most were either paid or lacked support. So I leaned on Cursor (been using it since launch) and spent a few hours hacking together a Python script using FontTools( https://bit.ly/3EAbkA6 , Opensource font generation python library). Eventually, I got a working .ttf file with an SBIX table (used by Apple’s color fonts)! [Technical details] 1) Create base glyphs Drew black letterforms by hand on iPad (or used open-licensed fonts for other experiments). 2) Add texture/style Used ComfyUI + Stable Diffusion + ControlNet to generate stylized images for each letter. Could also be done in Midjourney, Photoshop, etc. Key part is keeping image sizes consistent. 3) Generate font files Used FontTools (Python). Tried FontForge, BitFontMaker, even paid tools like Glyphs and Fontself — none worked well for image-based fonts. FontTools + SBIX table finally did the trick. [Constraints] SBIX fonts are still relatively heavy, and not all software supports them yet. Photoshop does, but Figma doesn’t (yet). I plan to submit a feature request to Figma once things are more polished. If anyone’s curious to try the font, happy to share it. Would love feedback, ideas, or just to know if this inspires you. I’ve been doing solo creative projects for a while — it can get tough, but knowing it sparks something for someone else helps a lot. Thanks for reading — and feel free to AMA if you're trying something similar! *Updates I'm using a Mac with the Chrome (Arc) browser. It might not work properly on other browsers or OS. If it doesn't work for you, reporting it would really help me improve it next time. Thanks!! https://bit.ly/3Rni8nH April 16, 2025 at 07:39AM

Show HN: Rocal – Full-stack WASM framework https://bit.ly/4luAnoS

Show HN: Rocal – Full-stack WASM framework https://bit.ly/3G5B2x4 April 16, 2025 at 02:13AM

Show HN: Particle - News, Organized https://bit.ly/4cFFVcq

Show HN: Particle - News, Organized Hello HN! Particle News product engineer here. Keeping up with the news is overwhelming in an age of information overload. Particle reimagines the experience by organizing articles into comprehensive "Stories," offering clear, concise summaries to quickly grasp what matters. Today, we reached the #1 spot in "Newspapers & Magazine" on the iOS App Store—and I thought I'd share a bit of our backstory. I've been connected to this team for a long time. About 20 years ago, I shared a house with our CTO and co-founder Marcel Molina. I helped him get started with programming. Since then, Marcel has had an extraordinary career—becoming a senior staff engineer at Twitter, where he helped build foundational features like Retweets, Notifications, and Lists, and later working at Tesla on manufacturing execution systems that scaled across Gigafactories. At Twitter, Marcel worked closely with our CEO and product visionary Sara Beykpour, who led initiatives like Twitter Blue, Twitter Video, and the experimental app twttr . Sara has a background in Software Engineering and Cognitive Science from the University of Waterloo and spent over a decade at Twitter in engineering and leadership roles. In late 2022, Sara and Marcel started prototyping a news app that could reduce the cognitive and emotional burden of staying informed—by using AI to help people understand more, faster. They were soon joined by a few other former Twitter colleagues who helped shape the early concept into a working iOS application. I joined about 15 months ago to contribute across the entire stack. Since then, I've helped design and build major iOS features, rewritten our public website on Cloudflare Workers, and implemented new functionality in our Go backend, which is driven by Google Cloud's Pub/Sub architecture. What Makes Particle News Different Particle helps you navigate the news effortlessly—leveraging AI to help you understand more, faster. Some highlights: • Personalized News – Your feed is tailored to your interests. You can follow specific people, places, and things so you never miss what matters to you. • Clear Summaries – Get a quick overview or dive deeper with detailed, structured context—summarized in natural language. • Perspective Tools – Features like "Opposite Sides" and our political spectrum chart let you explore stories through multiple lenses. • Interactive Q&A – Ask questions about any story and get concise answers with sources and citations. • Audio Summaries – Use the "Play" feature to listen to your feed, specific stories, or even select articles—great for hands-free or on-the-go moments. One of the things we're most proud of is how Particle supports publishers. We've partnered with outlets like Reuters, AFP, and Fortune to host some of their content via APIs. These partners get prominent placement, and their links are highlighted in gold to stand out. This model aims to drive traffic back to publishers and reward high-quality journalism, rather than just aggregating and commodifying it. Transparency is a core value: all sources are cited, generated answers are grounded in evidence, and we take real care to prevent AI hallucinations or misleading summaries. Despite negligible marketing spend, Particle has grown to the top of its category by focusing on engagement with early users and meaningful partnerships with the media ecosystem. Coming soon: weekday mini crosswords—a new feature designed by another longtime friend of ours from 20 years back who went on to work at Twitter, lead development on Firewatch, and release his own games independently. It's incredibly fun and rewarding to be building something meaningful with old and new friends. I feel lucky every day to work alongside some of the best product, design, and engineering minds on a project we hope will help people stay engaged with democracy without burning out. https://apple.co/43QlGWY April 15, 2025 at 10:26PM

Show HN: Real-time AI analysis of Trump's posts on financial markets within 30s https://bit.ly/43V3H1A

Show HN: Real-time AI analysis of Trump's posts on financial markets within 30s Hey HN, I built TrumpPosted to track the potential financial market impact of Donald Trump's social media posts in near real-time. It works by: Scraping his posts almost immediately. Sending the post content + metadata to an AI (Llama 3.3 70b via Groq) for analysis against specific financial subjects (stocks, bonds, crypto, or user-defined like 'Tesla stock'). The AI generates a headline, market sentiment score (0-100), summary, attitude analysis, and detailed commentary. Subscribers get email alerts within ~30 seconds containing this analysis tailored to their chosen subject. All analyses are viewable on the site and browseable via a dynamic archive. Built with Next.js, MongoDB, Groq API (Batch + Single), Apify, and Mailgun. It's purely an informational tool (NOT financial advice – see the disclaimer!) meant to highlight potential volatility triggers and provide AI-driven perspectives. Would love to hear your feedback! Thanks - Jay Qin URL: https://bit.ly/4jCiHWW https://bit.ly/4jCiHWW April 15, 2025 at 05:20AM

Show HN: SubZen, a free subscriptions tracking web app https://bit.ly/4j9GPjx

Show HN: SubZen, a free subscriptions tracking web app https://bit.ly/42MlR4s April 14, 2025 at 11:47PM