Show HN: JUring – Java bindings for io_uring file I/O https://bit.ly/4hdkAbi

Show HN: JUring – Java bindings for io_uring file I/O Hi HN! For the past few weeks, I've been working on bringing io_uring to Java. It started as an experiment, but slowly it became more than just that, and now trying to turn it into a proper library. After hearing talks about virtual threads and io_urings performance I wanted to build something that was faster than Java provides out of the box. I ended up creating two APIs: - A direct one that closely mirrors io_uring's behavior - A blocking one built with Virtual Threads in mind for remote files. This is the link to the project if you are interested https://bit.ly/3WiBf57 It's still far from done, but it's running! Would love to hear your thoughts if you've worked on or used something similar. Also very curious to hear what you like and don't like about the project! https://bit.ly/3WiBf57 January 13, 2025 at 11:06AM

Show HN: WhatsApp Bulk Messager Chrome Extension https://bit.ly/3Wig43f

Show HN: WhatsApp Bulk Messager Chrome Extension Whatsapp Web Bulk Messager Chrome Extension Upload Contact CSV (12 digit number without +) Draft the message Hit send The new way of Outbound WhatsApp marketing. Messages - Free Attachments - Lifetime for $20. Will be updated in next Version https://bit.ly/4gSf9yB January 13, 2025 at 08:08AM

Show HN: Bash-my-AWS adds `bmai

Show HN: Doom (1993) in a PDF https://bit.ly/4jeo1jO

Show HN: Doom (1993) in a PDF I made a Doom source port that runs within a PDF file. I was inspired by the recent HN post about Tetris in a PDF ( https://bit.ly/3C5N8V9 ) and I wondered if I could get Doom to run using a similar method. It turns out that old versions of Emscripten can compile C to asm.js code that will happily run inside the limited JS runtime of the PDF engine. I used the doomgeneric ( https://bit.ly/42u9iLN ) fork of the original Doom source, as that made writing the IO fairly easy. All I had to do was implement a framebuffer and keyboard inputs. Unlike previous interactive PDF demos, the output for DoomPDF is achieved by creating a text field for each row of pixels in the screen, then setting their contents to various ASCII characters. This gives me a 6 color monochrome display, that can be updated reasonably quickly (80ms per frame). The source code is available at: https://bit.ly/3WhAol4 Note that this PDF can only run in Chromium-based browsers that use the PDFium engine. https://bit.ly/4h9z4sE January 13, 2025 at 01:50AM

Show HN: Willpayforthis.com – Gathering posts about what people will pay for https://bit.ly/4hd45Mc

Show HN: Willpayforthis.com – Gathering posts about what people will pay for When people have a pain point they'd like solved, I find that many of them resort to posting a Tweet about it. I made these posts easy to find. https://bit.ly/3VSDI6c January 12, 2025 at 06:56AM

Show HN: Weekly to-do list with automatic task rollover https://bit.ly/3DQGL8N

Show HN: Weekly to-do list with automatic task rollover https://bit.ly/4jr4gWr January 12, 2025 at 06:09AM

Show HN: Dribbble for code https://bit.ly/3DRdTgE

Show HN: Dribbble for code https://bit.ly/4j9ofbV January 12, 2025 at 03:52AM

Show HN: I started sharing 2 New Validated SaaS ideas every week https://bit.ly/426Fog7

Show HN: I started sharing 2 New Validated SaaS ideas every week I'm tired of seeing founders building stuff for months and years that nobody would ever pay for. They just don't see it, like most other founders learn to do. Business validation = making money, and nothing else really. If you really wanna make money this year, I can help you do it. https://bit.ly/4g1G3Da January 11, 2025 at 11:37AM

Show HN: Portify – A No-Code Portfolio Builder for Developers and Creators https://bit.ly/428z3kk

Show HN: Portify – A No-Code Portfolio Builder for Developers and Creators I’m excited to share Portify, a no-code portfolio builder designed for creators, developers, and professionals to showcase their work effortlessly. As a developer, I know how time-consuming building and tweaking personal portfolios can be, especially when existing tools lack flexibility. Portify simplifies this process with sleek, customizable templates tailored for developers, designers, and freelancers. You can personalize your portfolio with beautiful themes and fonts, track profile views with built-in analytics, and publish it in minutes. Whether you’re looking to land gigs, apply for jobs, or showcase side projects, Portify ensures your work stands out. I’d love for you to check it out and share your feedback—good, bad, or brutal. Cheers, A fellow builder. https://bit.ly/3WalEVm January 11, 2025 at 06:49AM

Show HN: My Literate System Configuration https://bit.ly/409SNBI

Show HN: My Literate System Configuration This is version 3 of my tinkering with an immutable configuration for my computers. This time around I used emacs' org + nixos to settle on this. The README is the single source of truth for my computer. It is then "tangled" into nix source files, which can then be used by nixos to build my system. This allows me to keep a living document as my system configuration, especially reminding me (hopefully) of certain decisions. https://bit.ly/3PvE13b January 11, 2025 at 02:14AM

Show HN: A self hostable forum like news.Y Combinator.com https://bit.ly/3WcQsVn

Show HN: A self hostable forum like news.Y Combinator.com https://bit.ly/3C54qBO January 11, 2025 at 12:07AM

Show HN: Map showing which notable people were born in your backyard https://bit.ly/40s8G7J

Show HN: Map showing which notable people were born in your backyard https://bit.ly/40rKaDG January 10, 2025 at 12:59PM

Show HN: Bin - AI business intelligence analyst that turns data into dashboards https://bit.ly/4abrTOd

Show HN: Bin - AI business intelligence analyst that turns data into dashboards Bin is an AI business intelligence analyst that turns data into dashboards. Our goal is to make creating dashboards simpler to do than no-code alternatives like PowerBI and Tableau while preserving the powerful customization abilities of raw SQL and Python. Here’s a quick demo: https://www.youtube.com/watch?v=Fsh8M3hIjDA . Customers from our previous product wanted custom dashboards but didn’t want to spend on technical staff to build them. They wanted customizability of the dashboard yet simplicity of the building experience. So, we studied the approaches of Devin, Claude Artifacts, and v0 and wanted a version that was purpose built for making dashboards and admin pages to solve this problem. This way anyone could spin up highly custom dashboards fast without knowing PowerBI, Tableau, Python, or SQL. The interface is similar to Cursor, where you attach database context and then prompt Bin on a side chat to make visual components (charts, cards, graphs). You can then click to add these components onto your panel. On the backend, Bin spins up the components in React code and data queries in Python + SQL code in one go. We’ve wired up Bin with tool calls so that it can make the query given the schema and table context of your selected database, execute the query, and then make the component with the query key passed into our useQuery function. We make all of this code for the component and query viewable and editable on the platform. Once components are added, you can then drag and drop, resize, and reorganize them on the panel layout. The dashboard will self-update over time as more data enters your database (the queries are re-executed with every refresh). After finalizing, you can deploy the dashboard or embed it onto your other internal tools. You can try Bin today on a test database for free at https://bit.ly/4aeli5z . Please do let us know what you think – we’re open to feedback and suggestions as we continue to improve Bin. https://bit.ly/4aeli5z January 6, 2025 at 05:50PM

Show HN: TLabWebViewVR – Open Source 3D Web Browser Project https://bit.ly/4g0f7Uk

Show HN: TLabWebViewVR – Open Source 3D Web Browser Project https://bit.ly/40aEU67 January 10, 2025 at 03:50AM

Show HN: Never let friends forget who is the winner https://bit.ly/4jcWVJG

Show HN: Never let friends forget who is the winner Hi HN, I made a simple little app to keep track of game rankings with friends. It uses the Elo system (like in chess) to adjust scores after each game. Works for board games, chess, padel, tennis, or anything that’s competitive. It’s free — give it a try https://bit.ly/4gK4PIU January 10, 2025 at 01:47AM

Show HN: LA Wildfire Satellite Analysis https://bit.ly/4h9k7Xq

Show HN: LA Wildfire Satellite Analysis https://bit.ly/4068Kc1 January 9, 2025 at 05:08AM

Show HN: macOS dock pissed me off and I extended it https://bit.ly/4h5hm9J

Show HN: macOS dock pissed me off and I extended it Hey HN! So the other day macOS dock system pissed me off, completely. I’m someone who runs 2 or 3 monitors daily: one for coding, one for chat apps, and one for design tools. But macOS only gives you a single Dock, which either stays on your main screen or auto-swaps wherever your mouse is. Complete hell. I just wanted an easy way to keep a “chat dock” on my side monitor, a “development dock” on my center monitor, and maybe another “utilities dock” somewhere else—without messing with some complex, heavy, bloated dock replacement. So I made one. And got feedback from my friends that it's good, and I should publish it. https://bit.ly/4gL9aeT January 8, 2025 at 09:56PM

Show HN: Stagehand – an open source browser automation framework powered by AI https://bit.ly/4fOJpsW

Show HN: Stagehand – an open source browser automation framework powered by AI Hi HN! I’m Anirudh — longtime lurker, first time poster, and I couldn’t be more excited to show you Stagehand. Stagehand is a TypeScript project that extends Playwright with three simple AI methods — act, extract, and observe. We’d love for you to try it out using the command below: npx create-browser-app --example quickstart Here’s a sample workflow: const stagehand = new Stagehand(); await stagehand.init(); // Stagehand overrides the Playwright Page and Context classes const { page, context } = stagehand await page.goto("instadash.com") // Regular Playwright // Take action on the page await page.act({ action: "click on taqueria cazadores" }) // Extract relevant data from the page const { price } = await page.extract({ instruction: "extract the price of the super burrito", schema: z.object({ price: z.number() }) }) We built Stagehand because we loved building browser automations using Playwright and Selenium, but we grew frustrated at how cumbersome it is to just get started and write simple browser automations. These frameworks, while incredibly powerful, are built for QA testing and are thus notoriously prone to fail if there are minor changes in the UI or underlying DOM structure. The goal of Stagehand is twofold: 1. Make browser automations easier to write 2. Make browser automations more resilient to DOM changes. We were super energized by what we’ve been seeing with vision-based computer use agents. We think with a browser, you can provide even richer data by leveraging the information in the DOM + a11y tree in addition to what’s rendered on the page. However, we didn’t want to go so far as to build an agent, since we wanted fine-grained control over each step that an agent can take. Therefore, the happy medium we built was to extend the existing powerful functionalities of Playwright with simple and extensible AI APIs that return the decision-making power back to the developer at each step. Check out our docs: https://bit.ly/4gLU2xY We’d love for you to join and give us feedback on Slack as well: https://bit.ly/4fW4DVD https://bit.ly/4hqoPjZ January 8, 2025 at 05:41PM

Show HN: HN client that saves time https://bit.ly/40rkaIR

Show HN: HN client that saves time This site curates the most popular posts daily, providing concise summaries of their key discussions. https://bit.ly/4j06WKp January 8, 2025 at 08:29AM

Show HN: DeepFace – A lightweight deep face recognition library for Python https://bit.ly/3DNMBYA

Show HN: DeepFace – A lightweight deep face recognition library for Python DeepFace is a leading open-source library for facial recognition and facial attribute analysis, and the de facto standard in Python. It wraps multiple state-of-the-art models that have reached — and even surpassed — human-level accuracy in recognizing faces. By the numbers (as of early 2025): 15,000+ stars on GitHub; ~4 million installations via pip; 800+ citations in academic papers Whether you're building a cutting-edge AI project or simply exploring facial recognition, DeepFace makes advanced capabilities accessible with just a few lines of code. https://bit.ly/3WbBM8O January 3, 2025 at 01:03PM