The best Hacker News stories from Show from the past day
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Show HN: NixOS-DGX-Spark – Nix and NixOS on the DGX Spark
Try DGX Spark playbooks using Nix on DGX OS, or install NixOS on your DGX Spark for the full Nix experience. The repository provides USB images and a NixOS module with settings for DGX Spark systems.<p>This works on the NVIDIA DGX Spark itself and also on the Asus Ascent GX10.<p>See my 5 minute lightning talk from Planet Nix for an intro: <a href="https://youtu.be/AvK_gi_snJE?si=MPKv3iiuS9B5elIE" rel="nofollow">https://youtu.be/AvK_gi_snJE?si=MPKv3iiuS9B5elIE</a>
Show HN: Sprocket – The Best AI Agent for Hardware and Software Development
Hey HN,
I am 16y/o and have been working on Sprocket for a while. It's an open-source AI agent that beats every other agent out there at both hardware and software.<p>And here's the best part: Sprocket can (on its own) buy anything from any website when you tell it to do so. From hardware parts to SaaS subscriptions.<p>Sprocket retrieves best-in-class context from the web for everything it does. It is therefore incredibly reliable.
The agent harness's quality, performance, and UI rival that of Codex/Cursor/T3Code, and we are rapidly improving.
We will be releasing benchmarks on how Sprocket beats every other agent at both software and hardware soon.<p>In terms of hardware design, Sprocket can make beautiful schematics in react, create your BOM, and create detailed assembly instructions.<p>Hope you try it out!<p>Thanks,
Aarav<p>P.S. if the demo video doesn't load for you, come back after ~1.5hr and it should be there, I kinda had to submit this early. Sorry!
Show HN: Fuse – statically typed functional programming language
Hi HN! I've been working on the fuse programming language, it's a statically typed purely functional language with higher-kinder types and ad-hoc polymorphism. It compiles to the GRIN whole-program optimizer, producing LLVM-generated native code.<p>Fuse supports ADTs, Generics, Type Methods, Traits, Pattern matching etc. all in a functional style with no mutations.<p>I’ve been developing the language for 5 years, with code written in Scala. I’ve started coding the language from the base of System F that was implemented as part of the book: Types and Programming Languages (tapl). And then extending with concepts such as Bidirectional Type Checking with Higher-Rank Polymorphism.<p>I’ve mainly drawn inspiration from Rust, Haskell, Scala and Python (in terms of syntax). It all started because I wanted a language that has Rust-like concepts such as: ADT, Traits, Impl block syntax, etc. but have the pure functional semantics.<p>I'd would love feedback on the language design and its general usage.
Show HN: Bor – Open-source policy management for Linux desktops
Hi HN! I've been working on Bor, an open-source system for centralized Linux desktop management.<p>Bor consists of a lightweight Go agent and a central server. Policies are streamed to clients over mTLS/gRPC in real time—no polling—and currently support Firefox, Chrome, KDE, dconf, polkit and package management, with more coming.<p>Version 0.8 introduces several new policy types - Thunderbird, Microsoft Edge for Business and FirewallD zones, along with a number of improvements and fixes.<p>I'd love feedback on the architecture, policy model, and whether this is something you'd consider for managing Linux workstations.
Show HN: Kakehashi – Experimental userspace to run macOS binaries on Linux ARM
Show HN: I'm a 15 Year Old Wannabe Engineer, This Is a Cycloidal Gearbox I Built
Show HN: The Goal is simple, there should be an actual free editor
Hey HN, I'm Saai, one of the creators of Sylix. I made this open-minded version of Cursor where you can get all of the core features of Cursor but in a fully customizable IDE (Ctrl+K, @docs, parallel agents). We love Cursor so much, but there are so many other features we're building, including all things like multi-edit, parallel swaps, agent indexing (but not the traditional one), parallel LSP, or maybe... we might give agents a better understanding of the codebase via multi-semantic memory instead, alongside in-search grep for your system files or workspace. Sylix will be open source once it's stable, but it's a fully customizable tool we've been wanting!<p>Sorry for the delay; well, it's almost a year now. Well, I know developers were waiting for this.<p>The hard part: we're building Sylix not as a traditional fork of VS Code but as a mixer of all things; Sylix is built on top of Monaco Editor along with the Monaco Editor API, backed natively in Rust. The VS Code repo helps a lot, along with its great documentation about the src/workbench files extension, but it's great as we got into it pretty deep. Since we leveraged the monaco-vscode-api, it was easy for us to embed it nicely into our React code. So it was a pretty decent thing for adding a new feature alongside a new UI. For Sylix, all the core systems behind all things built in Rust are done; building just a little polish over the UI is a task since we are not UI designers,s though. Now two things left: a polished UI and the marketplace for Sylix, since we already figured out how we canroute then extension core; just the UI left. One thing we're excited about is how we make things work out after trying over and over a VS Code fork, Void fork, and VS Code 1.58; after trying all those things, it finally works. It's like this: maybe the 6th or 7th version of Sylix works for us.<p>The other benefit is that Sylix is going to be open source once it has a stable version, so we don't need to hide our prompts from what we built. We let you use Cursor's core features and functions right on your machine along with any of your existing subscriptions (like Codex, Claude Code, Kimi K3, DeepSeek) while we are working on it so that you can also use OpenCode Go as a provider. Sylix supports over 120+ models via your own providers; any model you want this lets you completely control your own data, and on-prem, a hosted model.<p>There is a lot to talk about: how we build, and full disclosure, we have passed most of the early phase and currently have around 43 developers using it with their own subscription... thank you to them; we have come so far through their feedback. But we're super excited to cover the gap alongside Cursor.<p>Let us know if there is anything you want to see Cursor-style in an actual Free Editor. Or feel free to shoot us a message.
Show HN: I built a cross-browser extension that controls fingerprinting surfaces
Hello Hacker News! I’m Tomasz, creator of Privacy Thing, a browser extension for Firefox and Chromium-based browsers. I’ve just released its Preview version.<p>Privacy Thing aims to reduce browser fingerprinting—the tracking of users without cookies.<p>It began as an internal project: a simple location simulator. Over time, I expanded it to cover more fingerprinting surfaces. It now has 13 protection categories affecting 50+ browser APIs and methods: Geolocation, time and locale settings, Canvas, WebGL, Audio, Navigator, Screen, Client Hints, Battery, WebRTC, Dedicated Workers, Service Workers, and Shared Workers. The list is still growing.<p>The extension is fully configurable. Users can create regional profiles and assign them to domain rules, with separate protection settings for each domain. Or they can skip domain rules and rely on the global configuration—I’m not here to decide what works best for them :-)<p>Privacy Thing uses Manifest V3, with all its pros and cons. Chrome and Firefox appear to offer similar extension APIs, but differ fundamentally at the level where Privacy Thing operates. This matters because its scripts must load as early as possible to be effective.<p>Its X-Ray module communicates with scripts running in the page context to show which APIs a site uses and how often it queries them. An aggregate count appears on the extension’s toolbar badge by default.<p>Each release includes processed, compact datasets covering Chrome build numbers, supported language codes, language-to-country mappings, popular screen resolutions, and hardware configurations. This keeps the extension independent of external services and there is no good reason to build extra infrastructure for it.<p>There are two exceptions. The regional preset wizard uses OpenStreetMap’s Nominatim geocoding service, but only after the user consents to sending the query. Maps are displayed using OpenFreeMap.<p>Presets can also be created manually. Users who know the coordinates can enter them directly without contacting any 3rd-party service.<p>The extension does not transmit telemetry or usage data. This makes development harder, but it is fundamental to its identity: user data belongs to the user. Privacy Thing configuration can be exported, edited and imported.<p>The Preview is currently distributed under a proprietary license. This is not ideal; I ultimately intend to release the source under an open-source license, most likely the AGPL.<p>More about the development process:
<a href="https://tomaszjanusz.dev/en/projects/privacy-thing/" rel="nofollow">https://tomaszjanusz.dev/en/projects/privacy-thing/</a><p>Download:<p>- Mozilla Addons:
<a href="https://addons.mozilla.org/en-US/firefox/addon/privacy-thing/" rel="nofollow">https://addons.mozilla.org/en-US/firefox/addon/privacy-thing...</a><p>- Chrome Web Store:
<a href="https://chromewebstore.google.com/detail/privacy-thing-preview/aklkmohdkhakelpdigmbpkfepebgceji" rel="nofollow">https://chromewebstore.google.com/detail/privacy-thing-previ...</a><p>The extension is STILL under review in the Microsoft Edge Add-ons store -_-<p>Thank you for your suggestions and feedback. Please remember that this is still a preview: some things may not work, may be slower, or may not behave as intended. I sincerely hope such issues will be few and far between.<p>P.S. Yes, Privacy Thing fully supports Firefox Containers. I like the concept and believe extensions should support containers whenever possible. Privacy Thing will support them elsewhere too, including Brave, if Brave Software makes its container API public.
Show HN: How to build and self-host a code review agent
Hey HN,<p>I've had a side-project that I've slowly ticked away at over the last year called Tilde. Tilde is a harness SDK platform - I've tried to take the best things of OpenClaw, Hermes & other harnesses and decompose them and make them available as cloud API building blocks.<p>You can use Tilde to create AI agents for your use case, fast and self-host the agent's yourself.<p>The documentation (and attached blog post) leave a lot to be desired in terms of technical documentation but hopefully the attached git repo does a good job of showcasing the API.<p><a href="https://github.com/trytilde/examples" rel="nofollow">https://github.com/trytilde/examples</a>
Show HN: I worked on a new browser for 2 years, today it passed Acid 3
Show HN: I worked on a new browser for 2 years, today it passed Acid 3
Show HN: Slope remade in HTML5 to load instantly on any browser, any device
A whole free daily game served in under 100kb with no ads, lags or logins. The URL will serve a new track every day, forever. And I've added setting sliders so players have full control over their experience.<p>Would love to know your thoughts guys. This was just me working with Claude Opus 5.<p>Cheers,
Nathan
Show HN: Slope remade in HTML5 to load instantly on any browser, any device
A whole free daily game served in under 100kb with no ads, lags or logins. The URL will serve a new track every day, forever. And I've added setting sliders so players have full control over their experience.<p>Would love to know your thoughts guys. This was just me working with Claude Opus 5.<p>Cheers,
Nathan
Show HN: BitBang – Reach machines behind NAT from a browser, no account
Show HN: BitBang – Reach machines behind NAT from a browser, no account
Show HN: What should the GUI for AI agents look like?
Hi HN! We’re Akilan and Miguel, the creators of MarbleOS.<p>The inspiration for Marble comes from the GUI work at Xerox PARC, the 1984 Macintosh, and later NeXTSTEP, which became the foundation for Mac OS X.
Before GUIs, interacting with a computer was limited to strange terminal commands:<p>C:\> DIR<p>C:\> COPY FILE.TXT A:<p>You had to remember the command, syntax, paths, and parameters.<p>The GUI made those capabilities visible. Instead of remembering commands, you could point at files, drag them, click buttons, and select actions from menus.
It didn't necessarily make entirely new things possible; it just made existing capabilities much easier to understand and use. We feel like AI is still somewhere around this command-line stage.<p>Even though the strict syntax has been replaced with natural language, the interaction can still be quite stiff and depend on heavily recall. Tools like Claude Cowork still look surprisingly terminal-like: /skill-name [param1] [param2]. The parameters are written in natural language, but the user still needs to know the capabilities that exist, and how to invoke it. Command-line flags and arguments have just been replaced with tools, skills, and context.<p>ChatGPT works very well for asking questions, but we aren't convinced that it's the final interface for delegating work across multiple agents. A blank text box and a list of chat threads feels limiting. An agent's capabilities are mostly invisible. With Marble, we're exploring an interface that treats AI more like a workspace than another chat app.
Each delegated task becomes a card. Multiple jobs can sit next to each other and run at once. Files, tools, and finished artifacts are visible at once. Before a task runs, Marble also shows which tools it expects to use. The basic idea is that the user should not have to hold the entire structure of the task in their head. And the result should be something directly usable, like a spreadsheet, PowerPoint, or other file, rather than something buried in a transcript.<p>Marble is our attempt at exploring interaction models beyond the chat box. The product is mainly for people who already use ChatGPT or Claude, but haven’t really adopted agent workflows yet. We’ve found that when the tools and possible actions are made more visible, people start delegating work they would not have thought to do through normal chat.<p>The site includes a downloadable beta if you want to try it. Does Marble feel like a genuinely novel interface?
Show HN: What should the GUI for AI agents look like?
Hi HN! We’re Akilan and Miguel, the creators of MarbleOS.<p>The inspiration for Marble comes from the GUI work at Xerox PARC, the 1984 Macintosh, and later NeXTSTEP, which became the foundation for Mac OS X.
Before GUIs, interacting with a computer was limited to strange terminal commands:<p>C:\> DIR<p>C:\> COPY FILE.TXT A:<p>You had to remember the command, syntax, paths, and parameters.<p>The GUI made those capabilities visible. Instead of remembering commands, you could point at files, drag them, click buttons, and select actions from menus.
It didn't necessarily make entirely new things possible; it just made existing capabilities much easier to understand and use. We feel like AI is still somewhere around this command-line stage.<p>Even though the strict syntax has been replaced with natural language, the interaction can still be quite stiff and depend on heavily recall. Tools like Claude Cowork still look surprisingly terminal-like: /skill-name [param1] [param2]. The parameters are written in natural language, but the user still needs to know the capabilities that exist, and how to invoke it. Command-line flags and arguments have just been replaced with tools, skills, and context.<p>ChatGPT works very well for asking questions, but we aren't convinced that it's the final interface for delegating work across multiple agents. A blank text box and a list of chat threads feels limiting. An agent's capabilities are mostly invisible. With Marble, we're exploring an interface that treats AI more like a workspace than another chat app.
Each delegated task becomes a card. Multiple jobs can sit next to each other and run at once. Files, tools, and finished artifacts are visible at once. Before a task runs, Marble also shows which tools it expects to use. The basic idea is that the user should not have to hold the entire structure of the task in their head. And the result should be something directly usable, like a spreadsheet, PowerPoint, or other file, rather than something buried in a transcript.<p>Marble is our attempt at exploring interaction models beyond the chat box. The product is mainly for people who already use ChatGPT or Claude, but haven’t really adopted agent workflows yet. We’ve found that when the tools and possible actions are made more visible, people start delegating work they would not have thought to do through normal chat.<p>The site includes a downloadable beta if you want to try it. Does Marble feel like a genuinely novel interface?
Show HN: What should the GUI for AI agents look like?
Hi HN! We’re Akilan and Miguel, the creators of MarbleOS.<p>The inspiration for Marble comes from the GUI work at Xerox PARC, the 1984 Macintosh, and later NeXTSTEP, which became the foundation for Mac OS X.
Before GUIs, interacting with a computer was limited to strange terminal commands:<p>C:\> DIR<p>C:\> COPY FILE.TXT A:<p>You had to remember the command, syntax, paths, and parameters.<p>The GUI made those capabilities visible. Instead of remembering commands, you could point at files, drag them, click buttons, and select actions from menus.
It didn't necessarily make entirely new things possible; it just made existing capabilities much easier to understand and use. We feel like AI is still somewhere around this command-line stage.<p>Even though the strict syntax has been replaced with natural language, the interaction can still be quite stiff and depend on heavily recall. Tools like Claude Cowork still look surprisingly terminal-like: /skill-name [param1] [param2]. The parameters are written in natural language, but the user still needs to know the capabilities that exist, and how to invoke it. Command-line flags and arguments have just been replaced with tools, skills, and context.<p>ChatGPT works very well for asking questions, but we aren't convinced that it's the final interface for delegating work across multiple agents. A blank text box and a list of chat threads feels limiting. An agent's capabilities are mostly invisible. With Marble, we're exploring an interface that treats AI more like a workspace than another chat app.
Each delegated task becomes a card. Multiple jobs can sit next to each other and run at once. Files, tools, and finished artifacts are visible at once. Before a task runs, Marble also shows which tools it expects to use. The basic idea is that the user should not have to hold the entire structure of the task in their head. And the result should be something directly usable, like a spreadsheet, PowerPoint, or other file, rather than something buried in a transcript.<p>Marble is our attempt at exploring interaction models beyond the chat box. The product is mainly for people who already use ChatGPT or Claude, but haven’t really adopted agent workflows yet. We’ve found that when the tools and possible actions are made more visible, people start delegating work they would not have thought to do through normal chat.<p>The site includes a downloadable beta if you want to try it. Does Marble feel like a genuinely novel interface?
Show HN: Gander, an Android file viewer that asks for no permissions
Hi HN,<p>I built an Android file viewer that opens PDF, Word, Excel, PowerPoint, images, video, audio, Markdown and code, and asks for no permissions at all.<p>I have always been uneasy about opening files people send me. On Android you either install a 400 MB office suite and sign in or use a small free viewer that wants storage access and ends up uploading your file to a server to render it. Also the hassle of having to download different apps for different file formats was really annoying.<p>Gander holds no permissions, not even INTERNET so the OS itself guarantees the file cannot leave the phone.<p>PDFs use Pdfium, media uses Media3, and Office formats are rendered by bundled JS libraries in a WebView and so no request goes to any server.<p>It is a viewer only. Complex PowerPoint decks come out approximately right, spreadsheet charts are not drawn, and old binary .doc and .ppt are unsupported. I'll work on it as issues come up :P<p>It is 14 MB, MIT licensed and uploaded on Github releases.<p>Do try it! I would love some feedback especially on files that render badly or need new support.
Show HN: Gander, an Android file viewer that asks for no permissions
Hi HN,<p>I built an Android file viewer that opens PDF, Word, Excel, PowerPoint, images, video, audio, Markdown and code, and asks for no permissions at all.<p>I have always been uneasy about opening files people send me. On Android you either install a 400 MB office suite and sign in or use a small free viewer that wants storage access and ends up uploading your file to a server to render it. Also the hassle of having to download different apps for different file formats was really annoying.<p>Gander holds no permissions, not even INTERNET so the OS itself guarantees the file cannot leave the phone.<p>PDFs use Pdfium, media uses Media3, and Office formats are rendered by bundled JS libraries in a WebView and so no request goes to any server.<p>It is a viewer only. Complex PowerPoint decks come out approximately right, spreadsheet charts are not drawn, and old binary .doc and .ppt are unsupported. I'll work on it as issues come up :P<p>It is 14 MB, MIT licensed and uploaded on Github releases.<p>Do try it! I would love some feedback especially on files that render badly or need new support.