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Show HN: Llama 3.1 70B on a single RTX 3090 via NVMe-to-GPU bypassing the CPU

Hi everyone, I'm kinda involved in some retrogaming and with some experiments I ran into the following question: "It would be possible to run transformer models bypassing the cpu/ram, connecting the gpu to the nvme?"<p>This is the result of that question itself and some weekend vibecoding (it has the linked library repository in the readme as well), it seems to work, even on consumer gpus, it should work better on professional ones tho

Show HN: A small, simple music theory library in C99

Show HN: A small, simple music theory library in C99

Show HN: Mines.fyi – all the mines in the US in a leaflet visualization

I downloaded the MSHA's (Mine Safety and Health Administration) public datasets and create a visualization of all the mines in the US complete with the operators and details on each site.

Show HN: Mines.fyi – all the mines in the US in a leaflet visualization

I downloaded the MSHA's (Mine Safety and Health Administration) public datasets and create a visualization of all the mines in the US complete with the operators and details on each site.

Show HN: Mines.fyi – all the mines in the US in a leaflet visualization

I downloaded the MSHA's (Mine Safety and Health Administration) public datasets and create a visualization of all the mines in the US complete with the operators and details on each site.

Show HN: A native macOS client for Hacker News, built with SwiftUI

Hey HN! I built a native macOS desktop client for Hacker News and I'm open-sourcing it under the MIT license.<p>GitHub: <a href="https://github.com/IronsideXXVI/Hacker-News" rel="nofollow">https://github.com/IronsideXXVI/Hacker-News</a><p>Download (signed & notarized DMG, macOS 14.0+): <a href="https://github.com/IronsideXXVI/Hacker-News/releases" rel="nofollow">https://github.com/IronsideXXVI/Hacker-News/releases</a><p>Screenshots: <a href="https://github.com/IronsideXXVI/Hacker-News#screenshots" rel="nofollow">https://github.com/IronsideXXVI/Hacker-News#screenshots</a><p>I spend a lot of time reading HN — I wanted something that felt like a proper Mac app: a sidebar for browsing stories, an integrated reader for articles, and comment threading — all in one window. Essentially, I wanted HN to feel like a first-class citizen on macOS, not a website I visit.<p>What it does:<p>- Split-view layout — stories in a sidebar on the left, articles and comments on the right, using the standard macOS NavigationSplitView pattern.<p>- Built-in ad blocking — a precompiled WKContentRuleList blocks 14 major ad networks (DoubleClick, Google Syndication, Criteo, Taboola, Outbrain, Amazon ads, etc.) right in the WebKit layer. No extensions needed. Toggleable in settings.<p>- Pop-up blocking — kills window.open() calls. Also toggleable.<p>- HN account login — full authentication flow (login, account creation, password reset). Session is stored in the macOS Keychain, and cookies are injected into the WebView so you can upvote, comment, and submit stories while staying logged in.<p>- Bookmarks — save stories locally for offline access. Persisted with Codable serialization, searchable and filterable independently.<p>- Search and filtering — powered by the Algolia HN API. Filter by content type (All, Ask, Show, Jobs, Comments), date range (Today, Past Week, Past Month, All Time), and sort by hot or recent.<p>- Scroll progress indicator — a small orange bar at the top tracks your reading progress via JavaScript-to-native messaging.<p>- Auto-updates via Sparkle with EdDSA-signed updates served from GitHub Pages.<p>- Dark mode — respects system appearance with CSS and meta tag injection.<p>Tech details for the curious:<p>The whole app is ~2,050 lines of Swift across 16 files. It uses the modern @Observable macro (not the old ObservableObject/Published pattern), structured concurrency with async/await and withThrowingTaskGroup for concurrent batch fetching, and SwiftUI throughout — no UIKit/AppKit bridges except for the WKWebView wrapper via NSViewRepresentable.<p>Two APIs power the data: the official HN Firebase API for individual item/user fetches, and the Algolia Search API for feeds, filtering, and search. The Algolia API is surprisingly powerful for this — it lets you do date-range filtering, pagination, and full-text search that the Firebase API doesn't support.<p>CI/CD:<p>The release pipeline is a single GitHub Actions workflow (467 lines) that handles the full macOS distribution story: build and archive, code sign with Developer ID, notarize with Apple (with a 5-retry staple loop for ticket propagation delays), create a custom DMG with AppleScript-driven icon positioning, sign and notarize the DMG, generate an EdDSA Sparkle signature, create a GitHub Release, and deploy an updated appcast.xml to GitHub Pages.<p>Getting macOS code signing and notarization working in CI was honestly the hardest part of this project. If anyone is distributing a macOS app outside the App Store via GitHub Actions, I'm happy to answer questions — the workflow is fully open source.<p>The entire project is MIT licensed. PRs and issues welcome: <a href="https://github.com/IronsideXXVI/Hacker-News" rel="nofollow">https://github.com/IronsideXXVI/Hacker-News</a><p>I'd love feedback — especially on features you'd want to see. Some ideas I'm considering: keyboard-driven navigation (j/k to move between stories), a reader mode that strips articles down to text, and notification support for replies to your comments.

Show HN: A native macOS client for Hacker News, built with SwiftUI

Hey HN! I built a native macOS desktop client for Hacker News and I'm open-sourcing it under the MIT license.<p>GitHub: <a href="https://github.com/IronsideXXVI/Hacker-News" rel="nofollow">https://github.com/IronsideXXVI/Hacker-News</a><p>Download (signed & notarized DMG, macOS 14.0+): <a href="https://github.com/IronsideXXVI/Hacker-News/releases" rel="nofollow">https://github.com/IronsideXXVI/Hacker-News/releases</a><p>Screenshots: <a href="https://github.com/IronsideXXVI/Hacker-News#screenshots" rel="nofollow">https://github.com/IronsideXXVI/Hacker-News#screenshots</a><p>I spend a lot of time reading HN — I wanted something that felt like a proper Mac app: a sidebar for browsing stories, an integrated reader for articles, and comment threading — all in one window. Essentially, I wanted HN to feel like a first-class citizen on macOS, not a website I visit.<p>What it does:<p>- Split-view layout — stories in a sidebar on the left, articles and comments on the right, using the standard macOS NavigationSplitView pattern.<p>- Built-in ad blocking — a precompiled WKContentRuleList blocks 14 major ad networks (DoubleClick, Google Syndication, Criteo, Taboola, Outbrain, Amazon ads, etc.) right in the WebKit layer. No extensions needed. Toggleable in settings.<p>- Pop-up blocking — kills window.open() calls. Also toggleable.<p>- HN account login — full authentication flow (login, account creation, password reset). Session is stored in the macOS Keychain, and cookies are injected into the WebView so you can upvote, comment, and submit stories while staying logged in.<p>- Bookmarks — save stories locally for offline access. Persisted with Codable serialization, searchable and filterable independently.<p>- Search and filtering — powered by the Algolia HN API. Filter by content type (All, Ask, Show, Jobs, Comments), date range (Today, Past Week, Past Month, All Time), and sort by hot or recent.<p>- Scroll progress indicator — a small orange bar at the top tracks your reading progress via JavaScript-to-native messaging.<p>- Auto-updates via Sparkle with EdDSA-signed updates served from GitHub Pages.<p>- Dark mode — respects system appearance with CSS and meta tag injection.<p>Tech details for the curious:<p>The whole app is ~2,050 lines of Swift across 16 files. It uses the modern @Observable macro (not the old ObservableObject/Published pattern), structured concurrency with async/await and withThrowingTaskGroup for concurrent batch fetching, and SwiftUI throughout — no UIKit/AppKit bridges except for the WKWebView wrapper via NSViewRepresentable.<p>Two APIs power the data: the official HN Firebase API for individual item/user fetches, and the Algolia Search API for feeds, filtering, and search. The Algolia API is surprisingly powerful for this — it lets you do date-range filtering, pagination, and full-text search that the Firebase API doesn't support.<p>CI/CD:<p>The release pipeline is a single GitHub Actions workflow (467 lines) that handles the full macOS distribution story: build and archive, code sign with Developer ID, notarize with Apple (with a 5-retry staple loop for ticket propagation delays), create a custom DMG with AppleScript-driven icon positioning, sign and notarize the DMG, generate an EdDSA Sparkle signature, create a GitHub Release, and deploy an updated appcast.xml to GitHub Pages.<p>Getting macOS code signing and notarization working in CI was honestly the hardest part of this project. If anyone is distributing a macOS app outside the App Store via GitHub Actions, I'm happy to answer questions — the workflow is fully open source.<p>The entire project is MIT licensed. PRs and issues welcome: <a href="https://github.com/IronsideXXVI/Hacker-News" rel="nofollow">https://github.com/IronsideXXVI/Hacker-News</a><p>I'd love feedback — especially on features you'd want to see. Some ideas I'm considering: keyboard-driven navigation (j/k to move between stories), a reader mode that strips articles down to text, and notification support for replies to your comments.

Show HN: A native macOS client for Hacker News, built with SwiftUI

Hey HN! I built a native macOS desktop client for Hacker News and I'm open-sourcing it under the MIT license.<p>GitHub: <a href="https://github.com/IronsideXXVI/Hacker-News" rel="nofollow">https://github.com/IronsideXXVI/Hacker-News</a><p>Download (signed & notarized DMG, macOS 14.0+): <a href="https://github.com/IronsideXXVI/Hacker-News/releases" rel="nofollow">https://github.com/IronsideXXVI/Hacker-News/releases</a><p>Screenshots: <a href="https://github.com/IronsideXXVI/Hacker-News#screenshots" rel="nofollow">https://github.com/IronsideXXVI/Hacker-News#screenshots</a><p>I spend a lot of time reading HN — I wanted something that felt like a proper Mac app: a sidebar for browsing stories, an integrated reader for articles, and comment threading — all in one window. Essentially, I wanted HN to feel like a first-class citizen on macOS, not a website I visit.<p>What it does:<p>- Split-view layout — stories in a sidebar on the left, articles and comments on the right, using the standard macOS NavigationSplitView pattern.<p>- Built-in ad blocking — a precompiled WKContentRuleList blocks 14 major ad networks (DoubleClick, Google Syndication, Criteo, Taboola, Outbrain, Amazon ads, etc.) right in the WebKit layer. No extensions needed. Toggleable in settings.<p>- Pop-up blocking — kills window.open() calls. Also toggleable.<p>- HN account login — full authentication flow (login, account creation, password reset). Session is stored in the macOS Keychain, and cookies are injected into the WebView so you can upvote, comment, and submit stories while staying logged in.<p>- Bookmarks — save stories locally for offline access. Persisted with Codable serialization, searchable and filterable independently.<p>- Search and filtering — powered by the Algolia HN API. Filter by content type (All, Ask, Show, Jobs, Comments), date range (Today, Past Week, Past Month, All Time), and sort by hot or recent.<p>- Scroll progress indicator — a small orange bar at the top tracks your reading progress via JavaScript-to-native messaging.<p>- Auto-updates via Sparkle with EdDSA-signed updates served from GitHub Pages.<p>- Dark mode — respects system appearance with CSS and meta tag injection.<p>Tech details for the curious:<p>The whole app is ~2,050 lines of Swift across 16 files. It uses the modern @Observable macro (not the old ObservableObject/Published pattern), structured concurrency with async/await and withThrowingTaskGroup for concurrent batch fetching, and SwiftUI throughout — no UIKit/AppKit bridges except for the WKWebView wrapper via NSViewRepresentable.<p>Two APIs power the data: the official HN Firebase API for individual item/user fetches, and the Algolia Search API for feeds, filtering, and search. The Algolia API is surprisingly powerful for this — it lets you do date-range filtering, pagination, and full-text search that the Firebase API doesn't support.<p>CI/CD:<p>The release pipeline is a single GitHub Actions workflow (467 lines) that handles the full macOS distribution story: build and archive, code sign with Developer ID, notarize with Apple (with a 5-retry staple loop for ticket propagation delays), create a custom DMG with AppleScript-driven icon positioning, sign and notarize the DMG, generate an EdDSA Sparkle signature, create a GitHub Release, and deploy an updated appcast.xml to GitHub Pages.<p>Getting macOS code signing and notarization working in CI was honestly the hardest part of this project. If anyone is distributing a macOS app outside the App Store via GitHub Actions, I'm happy to answer questions — the workflow is fully open source.<p>The entire project is MIT licensed. PRs and issues welcome: <a href="https://github.com/IronsideXXVI/Hacker-News" rel="nofollow">https://github.com/IronsideXXVI/Hacker-News</a><p>I'd love feedback — especially on features you'd want to see. Some ideas I'm considering: keyboard-driven navigation (j/k to move between stories), a reader mode that strips articles down to text, and notification support for replies to your comments.

Show HN: A Lisp where each function call runs a Docker container

Show HN: A Lisp where each function call runs a Docker container

Show HN: Mini-Diarium - An encrypted, local, cross-platform journaling app

Show HN: Mini-Diarium - An encrypted, local, cross-platform journaling app

Show HN: Ghostty-based terminal with vertical tabs and notifications

I run a lot of Claude Code and Codex sessions in parallel. I was using Ghostty with a bunch of split panes, and relying on native macOS notifications to know when an agent needed me. But Claude Code's notification body is always just "Claude is waiting for your input" with no context, and with enough tabs open, I couldn't even read the titles anymore.<p>I tried a few coding orchestrators but most of them were Electron/Tauri apps and the performance bugged me. I also just prefer the terminal since GUI orchestrators lock you into their workflow. So I built cmux as a native macOS app in Swift/AppKit. It uses libghostty for terminal rendering and reads your existing Ghostty config for themes, fonts, colors, and more.<p>The main additions are the sidebar and notification system. The sidebar has vertical tabs that show git branch, working directory, listening ports, and the latest notification text for each workspace. The notification system picks up terminal sequences (OSC 9/99/777) and has a CLI (cmux notify) you can wire into agent hooks for Claude Code, OpenCode, etc. When an agent is waiting, its pane gets a blue ring and the tab lights up in the sidebar, so I can tell which one needs me across splits and tabs. Cmd+Shift+U jumps to the most recent unread.<p>The in-app browser has a scriptable API ported from agent-browser [1]. Agents can snapshot the accessibility tree, get element refs, click, fill forms, evaluate JS, and read console logs. You can split a browser pane next to your terminal and have Claude Code interact with your dev server directly.<p>Everything is scriptable through the CLI and socket API – create workspaces/tabs, split panes, send keystrokes, open URLs in the browser.<p>Demo video: <a href="https://www.youtube.com/watch?v=i-WxO5YUTOs" rel="nofollow">https://www.youtube.com/watch?v=i-WxO5YUTOs</a><p>Repo (AGPL): <a href="https://github.com/manaflow-ai/cmux" rel="nofollow">https://github.com/manaflow-ai/cmux</a><p>[1] <a href="https://github.com/vercel-labs/agent-browser" rel="nofollow">https://github.com/vercel-labs/agent-browser</a>

Show HN: Ghostty-based terminal with vertical tabs and notifications

I run a lot of Claude Code and Codex sessions in parallel. I was using Ghostty with a bunch of split panes, and relying on native macOS notifications to know when an agent needed me. But Claude Code's notification body is always just "Claude is waiting for your input" with no context, and with enough tabs open, I couldn't even read the titles anymore.<p>I tried a few coding orchestrators but most of them were Electron/Tauri apps and the performance bugged me. I also just prefer the terminal since GUI orchestrators lock you into their workflow. So I built cmux as a native macOS app in Swift/AppKit. It uses libghostty for terminal rendering and reads your existing Ghostty config for themes, fonts, colors, and more.<p>The main additions are the sidebar and notification system. The sidebar has vertical tabs that show git branch, working directory, listening ports, and the latest notification text for each workspace. The notification system picks up terminal sequences (OSC 9/99/777) and has a CLI (cmux notify) you can wire into agent hooks for Claude Code, OpenCode, etc. When an agent is waiting, its pane gets a blue ring and the tab lights up in the sidebar, so I can tell which one needs me across splits and tabs. Cmd+Shift+U jumps to the most recent unread.<p>The in-app browser has a scriptable API ported from agent-browser [1]. Agents can snapshot the accessibility tree, get element refs, click, fill forms, evaluate JS, and read console logs. You can split a browser pane next to your terminal and have Claude Code interact with your dev server directly.<p>Everything is scriptable through the CLI and socket API – create workspaces/tabs, split panes, send keystrokes, open URLs in the browser.<p>Demo video: <a href="https://www.youtube.com/watch?v=i-WxO5YUTOs" rel="nofollow">https://www.youtube.com/watch?v=i-WxO5YUTOs</a><p>Repo (AGPL): <a href="https://github.com/manaflow-ai/cmux" rel="nofollow">https://github.com/manaflow-ai/cmux</a><p>[1] <a href="https://github.com/vercel-labs/agent-browser" rel="nofollow">https://github.com/vercel-labs/agent-browser</a>

Show HN: Ghostty-based terminal with vertical tabs and notifications

I run a lot of Claude Code and Codex sessions in parallel. I was using Ghostty with a bunch of split panes, and relying on native macOS notifications to know when an agent needed me. But Claude Code's notification body is always just "Claude is waiting for your input" with no context, and with enough tabs open, I couldn't even read the titles anymore.<p>I tried a few coding orchestrators but most of them were Electron/Tauri apps and the performance bugged me. I also just prefer the terminal since GUI orchestrators lock you into their workflow. So I built cmux as a native macOS app in Swift/AppKit. It uses libghostty for terminal rendering and reads your existing Ghostty config for themes, fonts, colors, and more.<p>The main additions are the sidebar and notification system. The sidebar has vertical tabs that show git branch, working directory, listening ports, and the latest notification text for each workspace. The notification system picks up terminal sequences (OSC 9/99/777) and has a CLI (cmux notify) you can wire into agent hooks for Claude Code, OpenCode, etc. When an agent is waiting, its pane gets a blue ring and the tab lights up in the sidebar, so I can tell which one needs me across splits and tabs. Cmd+Shift+U jumps to the most recent unread.<p>The in-app browser has a scriptable API ported from agent-browser [1]. Agents can snapshot the accessibility tree, get element refs, click, fill forms, evaluate JS, and read console logs. You can split a browser pane next to your terminal and have Claude Code interact with your dev server directly.<p>Everything is scriptable through the CLI and socket API – create workspaces/tabs, split panes, send keystrokes, open URLs in the browser.<p>Demo video: <a href="https://www.youtube.com/watch?v=i-WxO5YUTOs" rel="nofollow">https://www.youtube.com/watch?v=i-WxO5YUTOs</a><p>Repo (AGPL): <a href="https://github.com/manaflow-ai/cmux" rel="nofollow">https://github.com/manaflow-ai/cmux</a><p>[1] <a href="https://github.com/vercel-labs/agent-browser" rel="nofollow">https://github.com/vercel-labs/agent-browser</a>

Show HN: Ghostty-based terminal with vertical tabs and notifications

I run a lot of Claude Code and Codex sessions in parallel. I was using Ghostty with a bunch of split panes, and relying on native macOS notifications to know when an agent needed me. But Claude Code's notification body is always just "Claude is waiting for your input" with no context, and with enough tabs open, I couldn't even read the titles anymore.<p>I tried a few coding orchestrators but most of them were Electron/Tauri apps and the performance bugged me. I also just prefer the terminal since GUI orchestrators lock you into their workflow. So I built cmux as a native macOS app in Swift/AppKit. It uses libghostty for terminal rendering and reads your existing Ghostty config for themes, fonts, colors, and more.<p>The main additions are the sidebar and notification system. The sidebar has vertical tabs that show git branch, working directory, listening ports, and the latest notification text for each workspace. The notification system picks up terminal sequences (OSC 9/99/777) and has a CLI (cmux notify) you can wire into agent hooks for Claude Code, OpenCode, etc. When an agent is waiting, its pane gets a blue ring and the tab lights up in the sidebar, so I can tell which one needs me across splits and tabs. Cmd+Shift+U jumps to the most recent unread.<p>The in-app browser has a scriptable API ported from agent-browser [1]. Agents can snapshot the accessibility tree, get element refs, click, fill forms, evaluate JS, and read console logs. You can split a browser pane next to your terminal and have Claude Code interact with your dev server directly.<p>Everything is scriptable through the CLI and socket API – create workspaces/tabs, split panes, send keystrokes, open URLs in the browser.<p>Demo video: <a href="https://www.youtube.com/watch?v=i-WxO5YUTOs" rel="nofollow">https://www.youtube.com/watch?v=i-WxO5YUTOs</a><p>Repo (AGPL): <a href="https://github.com/manaflow-ai/cmux" rel="nofollow">https://github.com/manaflow-ai/cmux</a><p>[1] <a href="https://github.com/vercel-labs/agent-browser" rel="nofollow">https://github.com/vercel-labs/agent-browser</a>

Show HN: A physically-based GPU ray tracer written in Julia

We ported pbrt-v4 to Julia and built it into a Makie backend. Any Makie plot can now be rendered with physically-based path tracing.<p>Julia compiles user-defined physics directly into GPU kernels, so anyone can extend the ray tracer with new materials and media - a black hole with gravitational lensing is ~200 lines of Julia.<p>Runs on AMD, NVIDIA, and CPU via KernelAbstractions.jl, with Metal coming soon.<p>Demo scenes: github.com/SimonDanisch/RayDemo

Show HN: A physically-based GPU ray tracer written in Julia

We ported pbrt-v4 to Julia and built it into a Makie backend. Any Makie plot can now be rendered with physically-based path tracing.<p>Julia compiles user-defined physics directly into GPU kernels, so anyone can extend the ray tracer with new materials and media - a black hole with gravitational lensing is ~200 lines of Julia.<p>Runs on AMD, NVIDIA, and CPU via KernelAbstractions.jl, with Metal coming soon.<p>Demo scenes: github.com/SimonDanisch/RayDemo

Show HN: A physically-based GPU ray tracer written in Julia

We ported pbrt-v4 to Julia and built it into a Makie backend. Any Makie plot can now be rendered with physically-based path tracing.<p>Julia compiles user-defined physics directly into GPU kernels, so anyone can extend the ray tracer with new materials and media - a black hole with gravitational lensing is ~200 lines of Julia.<p>Runs on AMD, NVIDIA, and CPU via KernelAbstractions.jl, with Metal coming soon.<p>Demo scenes: github.com/SimonDanisch/RayDemo