The best Hacker News stories from Show from the past day
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Show HN: Simulating 20M Particles in JavaScript
Had some fun with shared array buffers over many months of free time.<p>Skip to the end to play around with the final app.<p>Open to ideas on how to simulate more whilst staying in js land.
Show HN: Simulating 20M Particles in JavaScript
Had some fun with shared array buffers over many months of free time.<p>Skip to the end to play around with the final app.<p>Open to ideas on how to simulate more whilst staying in js land.
Show HN: Simulating 20M Particles in JavaScript
Had some fun with shared array buffers over many months of free time.<p>Skip to the end to play around with the final app.<p>Open to ideas on how to simulate more whilst staying in js land.
Show HN: I made an open-source minimal blogging platform
Show HN: Hi.Events – Open-Source Event Management and Ticketing Platform
Show HN: I made an open source Mailchimp RSS-to-Email alternative
Hi all! Excited to share rss2newsletter after completing dev work for the initial release.<p>The idea for this project came out of necessity, as I wanted to share my articles via email newsletter. I was looking for a super minimal, lightweight, and open source solution, and when none existed, I decided to create one.<p>For any sizable number of email recipients, a popular platform like Mailchimp will easily cost you hundreds or even thousands per month in per-contact fees. rss2newsletter, on the other hand, allows you to use Amazon SES, so you can reach your audience at pennies on the dollar.<p>Beyond these factors, I also wanted something that could run on an internet-connected potato it's so easy on your system and fully automated so you can set it and forget it.<p>So, I created (and put under a free software license):<p><a href="https://github.com/ElliotKillick/rss2newsletter">https://github.com/ElliotKillick/rss2newsletter</a><p>rss2newsletter (integrating with Listmonk and Amazon SES for ultra-low-cost emails) is a drop-in solution that requires almost no setup besides connecting with SES and styling your emails. It's also competitive at what it does with proprietary self-hosted solutions like Sendy, which requires your system/VPS to have some rather beefy specs to run well.<p>Let me know if there are any other features you would like to see. I hope you can find my project helpful to you!
Show HN: I made an open source Mailchimp RSS-to-Email alternative
Hi all! Excited to share rss2newsletter after completing dev work for the initial release.<p>The idea for this project came out of necessity, as I wanted to share my articles via email newsletter. I was looking for a super minimal, lightweight, and open source solution, and when none existed, I decided to create one.<p>For any sizable number of email recipients, a popular platform like Mailchimp will easily cost you hundreds or even thousands per month in per-contact fees. rss2newsletter, on the other hand, allows you to use Amazon SES, so you can reach your audience at pennies on the dollar.<p>Beyond these factors, I also wanted something that could run on an internet-connected potato it's so easy on your system and fully automated so you can set it and forget it.<p>So, I created (and put under a free software license):<p><a href="https://github.com/ElliotKillick/rss2newsletter">https://github.com/ElliotKillick/rss2newsletter</a><p>rss2newsletter (integrating with Listmonk and Amazon SES for ultra-low-cost emails) is a drop-in solution that requires almost no setup besides connecting with SES and styling your emails. It's also competitive at what it does with proprietary self-hosted solutions like Sendy, which requires your system/VPS to have some rather beefy specs to run well.<p>Let me know if there are any other features you would like to see. I hope you can find my project helpful to you!
Show HN: A free minimalist daily habit tracker
Hello.<p>I was looking for a simple and clean habit tracker. I went through a few apps but felt they were missing something. I also had some time on my hands, so decided to make my own and share it in case anyone else likes it.<p>Some of the supported features:<p>Streaks based, track and beat your longest streaks<p>Fully useable offline<p>Freezes (similar to Duolingo's streak freezes)<p>Visual map for tracking consistency<p>Pause the app when you need a break or will be away<p>For anyone curious about the tech stack:
- React for frontend
- Dexie cloud for storage and syncing
- Vercel for hosting<p>Link: [<a href="https://rdht.vercel.app/" rel="nofollow">https://rdht.vercel.app/</a>]
Show HN: A free minimalist daily habit tracker
Hello.<p>I was looking for a simple and clean habit tracker. I went through a few apps but felt they were missing something. I also had some time on my hands, so decided to make my own and share it in case anyone else likes it.<p>Some of the supported features:<p>Streaks based, track and beat your longest streaks<p>Fully useable offline<p>Freezes (similar to Duolingo's streak freezes)<p>Visual map for tracking consistency<p>Pause the app when you need a break or will be away<p>For anyone curious about the tech stack:
- React for frontend
- Dexie cloud for storage and syncing
- Vercel for hosting<p>Link: [<a href="https://rdht.vercel.app/" rel="nofollow">https://rdht.vercel.app/</a>]
Show HN: Execute JavaScript in a WebAssembly QuickJS sandbox
This TypeScript package allows you to safely execute JavaScript code within a WebAssembly sandbox using the QuickJS engine. Perfect for isolating and running untrusted code securely, it leverages the lightweight and fast QuickJS engine compiled to WebAssembly, providing a robust environment for code execution.<p>Features<p>- *Security*: Run untrusted JavaScript code in a safe, isolated environment.<p>- *File System*: Can mount a virtual file system<p>- *Custom Node Modules*: Custom node modules are mountable<p>- *Fetch Client*: Can provide a fetch client to make http(s) calls<p>- *Test-Runner*: Includes a test runner and chai based `expect`<p>- *Performance*: Benefit from the lightweight and efficient QuickJS engine.<p>- *Versatility*: Easily integrate with existing TypeScript projects.<p>- *Simplicity*: User-friendly API for executing and managing JavaScript code in the sandbox.
Show HN: Execute JavaScript in a WebAssembly QuickJS sandbox
This TypeScript package allows you to safely execute JavaScript code within a WebAssembly sandbox using the QuickJS engine. Perfect for isolating and running untrusted code securely, it leverages the lightweight and fast QuickJS engine compiled to WebAssembly, providing a robust environment for code execution.<p>Features<p>- *Security*: Run untrusted JavaScript code in a safe, isolated environment.<p>- *File System*: Can mount a virtual file system<p>- *Custom Node Modules*: Custom node modules are mountable<p>- *Fetch Client*: Can provide a fetch client to make http(s) calls<p>- *Test-Runner*: Includes a test runner and chai based `expect`<p>- *Performance*: Benefit from the lightweight and efficient QuickJS engine.<p>- *Versatility*: Easily integrate with existing TypeScript projects.<p>- *Simplicity*: User-friendly API for executing and managing JavaScript code in the sandbox.
Show HN: BeaconDB – An Alternative to Mozilla Location Services
Show HN: BeaconDB – An Alternative to Mozilla Location Services
Show HN: A modern Jupyter client for macOS
I love Jupyter – it's how I learned to code back when I was working as a scientist. But I was always frustrated that there wasn't a simple and elegant app that I could use with my Mac. I made do by wrapping JupyterLab in a chrome app, and then more recently switching to VS Code to make use of Copilot. I've always craved a more focused and lighter-weight experience when working in a notebook. That's why I created Satyrn.<p>It starts up really fast (faster time-to-execution than VS Code or JupyterLab), you can launch notebooks right from the Finder, and the design is super minimalist. It's got an OpenAI integration (use your own API key) for multi-cell generation with your notebook as context (I'll add other LLMs soon). And many more useful features like a virtual environment management UI, Black code formatting, and easy image/table copy buttons.<p>Full disclosure: it's built with Electron. I originally wrote it in Swift but couldn't get the editor experience to where I wanted it. Now it supports autocomplete, multi-cursor editing, and moving the cursor between cells just like you'd expect from JupyterLab or VS Code.<p>Satyrn sits on top of the jupyter-server, so it works with all your existing python kernels, Jupyter configuration, and ipynb files. It only works with local files at the moment, but I'm planning to extend it to support remote servers as well.<p>I'm an indie developer, and I will try to monetize at some point, but it's free while in alpha. If you're interested, please try it out!<p>I'd love your feedback in the comments, or you can contact me at jack-at-satyrn-dot-app.
Show HN: A modern Jupyter client for macOS
I love Jupyter – it's how I learned to code back when I was working as a scientist. But I was always frustrated that there wasn't a simple and elegant app that I could use with my Mac. I made do by wrapping JupyterLab in a chrome app, and then more recently switching to VS Code to make use of Copilot. I've always craved a more focused and lighter-weight experience when working in a notebook. That's why I created Satyrn.<p>It starts up really fast (faster time-to-execution than VS Code or JupyterLab), you can launch notebooks right from the Finder, and the design is super minimalist. It's got an OpenAI integration (use your own API key) for multi-cell generation with your notebook as context (I'll add other LLMs soon). And many more useful features like a virtual environment management UI, Black code formatting, and easy image/table copy buttons.<p>Full disclosure: it's built with Electron. I originally wrote it in Swift but couldn't get the editor experience to where I wanted it. Now it supports autocomplete, multi-cursor editing, and moving the cursor between cells just like you'd expect from JupyterLab or VS Code.<p>Satyrn sits on top of the jupyter-server, so it works with all your existing python kernels, Jupyter configuration, and ipynb files. It only works with local files at the moment, but I'm planning to extend it to support remote servers as well.<p>I'm an indie developer, and I will try to monetize at some point, but it's free while in alpha. If you're interested, please try it out!<p>I'd love your feedback in the comments, or you can contact me at jack-at-satyrn-dot-app.
Show HN: A modern Jupyter client for macOS
I love Jupyter – it's how I learned to code back when I was working as a scientist. But I was always frustrated that there wasn't a simple and elegant app that I could use with my Mac. I made do by wrapping JupyterLab in a chrome app, and then more recently switching to VS Code to make use of Copilot. I've always craved a more focused and lighter-weight experience when working in a notebook. That's why I created Satyrn.<p>It starts up really fast (faster time-to-execution than VS Code or JupyterLab), you can launch notebooks right from the Finder, and the design is super minimalist. It's got an OpenAI integration (use your own API key) for multi-cell generation with your notebook as context (I'll add other LLMs soon). And many more useful features like a virtual environment management UI, Black code formatting, and easy image/table copy buttons.<p>Full disclosure: it's built with Electron. I originally wrote it in Swift but couldn't get the editor experience to where I wanted it. Now it supports autocomplete, multi-cursor editing, and moving the cursor between cells just like you'd expect from JupyterLab or VS Code.<p>Satyrn sits on top of the jupyter-server, so it works with all your existing python kernels, Jupyter configuration, and ipynb files. It only works with local files at the moment, but I'm planning to extend it to support remote servers as well.<p>I'm an indie developer, and I will try to monetize at some point, but it's free while in alpha. If you're interested, please try it out!<p>I'd love your feedback in the comments, or you can contact me at jack-at-satyrn-dot-app.
Show HN: YTHunt, App for recommending/discovering interesting videos
I built this since posting YT videos are discouraged here.. very basic no bells & whistles.<p>Thanks
Show HN: A JavaScript UI library for imperative JSX
I've been building a web UI library for a side project of mine. I thought it might be useful to others, so I'm releasing it as open source.<p>To put it simply, I realized that most of my pain points with React come from its declarative model ui=f(state). So I'm trying something that I'm calling "imperative JSX." Instead of treating JSX as the source of truth for your UI, it essentially becomes a query interface for DOM manipulation.<p>I first had the idea for it a few months ago, and only began writing it in earnest last week, so it's extremely early and nowhere near production-ready. Still, I'd appreciate feedback on it (positive and negative)!<p>The side project I'm working on is called Matry, so the library is currently called @matry/dom. I'm slowly building up a list of examples of it in action at this repo: <a href="https://github.com/matry/dom-recipes">https://github.com/matry/dom-recipes</a><p>Cheers!
Show HN: Bash Dungeon – An educational dungeon crawler in the shell
This is still WIP, but if anyone is interested, we could develop it much faster and perhaps even with cooler features like TUI graphics etc ...<p>Right now it is all in plain ol bash
Show HN: Bash Dungeon – An educational dungeon crawler in the shell
This is still WIP, but if anyone is interested, we could develop it much faster and perhaps even with cooler features like TUI graphics etc ...<p>Right now it is all in plain ol bash