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[CLI Tool] Aqua: A CLI message tool for AI agents

[Other] Show HN: A portfolio that re-architects its React DOM based on LLM intent Hi HN,<p>Added a raw 45-second demo showing the DOM re-architecture in real-time: <a href="https:&#x2F;&#x2F;streamable.com&#x2F;vw133i" rel="nofollow">https:&#x2F;&#x2F;streamable.com&#x2F;vw133i</a><p>I got tired of the &quot;Context Problem&quot; with static portfolios—Recruiters want a resume, Founders want a pitch deck, and Engineers want to see architecture.<p>Instead of building three sites, I hooked up my React frontend to Llama-3 (via Groq for &lt;100ms latency). It analyzes natural language intent from the search bar and physically re-architects the Component Tree to prioritize the most relevant modules using Framer Motion.<p>The hardest part was stabilizing the Cumulative Layout Shift (CLS) during the DOM mutation, but decoupling the layout state from the content state solved it.<p>The Challenge: There is a global CSS override hidden in the search bar. If you guess the 1999 movie reference, it triggers a 1-bit terminal mode.<p>Happy to answer any questions on the Groq implementation or the layout engine!

[Other] NanoClaw moved from Apple Containers to Docker

[DevOps] Show HN: Local-First Linux MicroVMs for macOS Shuru is a lightweight sandbox that spins up Linux VMs on macOS using Apple&#x27;s Virtualization.framework. Boots in about a second on Apple Silicon, and everything is ephemeral by default. There&#x27;s a checkpoint system for when you do want to persist state, and sandboxes run without network access unless you explicitly allow it. Single Rust binary, no dependencies. Built it for sandboxing AI agent code execution, but it works well for anything where you need a disposable Linux environment.

[Other] Fresh File Explorer – VS Code extension for navigating recent work

[Other] Git's Magic Files

[Other] Show HN: TLA+ Workbench skill for coding agents (compat. with Vercel skills CLI)

[Other] Show HN: Llama 3.1 70B on a single RTX 3090 via NVMe-to-GPU bypassing the CPU Hi everyone, I&#x27;m kinda involved in some retrogaming and with some experiments I ran into the following question: &quot;It would be possible to run transformer models bypassing the cpu&#x2F;ram, connecting the gpu to the nvme?&quot;<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

[Other] Show HN: Script Snap – Extract code from videos Hi HN, I&#x27;m lmw-lab, the builder behind Script Snap.<p>The Backstory: I built this out of pure frustration. A while ago, I was trying to figure out a specific configuration for a project, and the only good resource I could find was a 25-minute YouTube video. I had to scrub through endless &quot;smash the like button&quot; intros and sponsor reads just to find a single 5-line JSON payload.<p>I realized I didn&#x27;t want an &quot;AI summary&quot; of the video; I just wanted the raw code hidden inside it.<p>What&#x27;s different: There are dozens of &quot;YouTube to Text&quot; summarizers out there. Script Snap is different because it is explicitly designed as a technical extraction engine.<p>It doesn&#x27;t give you bullet points about how the YouTuber feels. It scans the transcript and on-screen visuals to extract specifically:<p>Code snippets<p>Terminal commands<p>API payloads (JSON&#x2F;YAML)<p>Security warnings (like flagging sketchy npm installs)<p>It strips out the &quot;vibe&quot; and outputs raw, formatted Markdown that you can copy straight into your IDE.<p>Full disclosure on the launch: Our payment processor (Stripe) flagged us on day one (banks seem to hate AI tools), so I&#x27;ve pivoted to a manual &quot;Concierge Alpha&quot; for onboarding. The extraction engine is fully operational, just doing things the hard way for now.<p>I&#x27;d love to hear your thoughts or harsh feedback on the extraction quality!

[Other] Show HN: Cellarium: A Playground for Cellular Automata Hey HN, just wanted to share a fun, vibe-coded Friday night experiment: a little playground for writing cellular automata in a subset of Rust, which is then compiled into WGSL.<p>Since it lets you dynamically change parameters while the simulation is running via a TUI, it&#x27;s easy to discover weird behaviors without remembering how you got there. If you press &quot;s&quot;, it will save the complete history to a JSON file (a timeline of the parameters that were changed at given ticks), so you can replay it and regenerate the discovery.<p>You can pan&#x2F;zoom, and while the main simulation window is in focus, the arrow keys can be used to update parameters (which are shown in the TUI).<p>Claude deserves all the credit and criticism for any technical elements of this project (beyond rough guidelines). I&#x27;ve just always wanted something like this, and it&#x27;s a lot of fun to play with. Who needs video games these days.

[Other] Don't create .gitkeep files, use .gitignore instead (2023)

[Other] Diode – Build, program, and simulate hardware

[Testing] Testing Super Mario Using a Behavior Model Autonomously

[Other] I found a useful Git one liner buried in leaked CIA developer docs

[Other] 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&#x27;m open-sourcing it under the MIT license.<p>GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News</a><p>Download (signed &amp; notarized DMG, macOS 14.0+): <a href="https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News&#x2F;releases" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News&#x2F;releases</a><p>Screenshots: <a href="https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News#screenshots" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;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&#x2F;Published pattern), structured concurrency with async&#x2F;await and withThrowingTaskGroup for concurrent batch fetching, and SwiftUI throughout — no UIKit&#x2F;AppKit bridges except for the WKWebView wrapper via NSViewRepresentable.<p>Two APIs power the data: the official HN Firebase API for individual item&#x2F;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&#x27;t support.<p>CI&#x2F;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&#x27;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:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;IronsideXXVI&#x2F;Hacker-News</a><p>I&#x27;d love feedback — especially on features you&#x27;d want to see. Some ideas I&#x27;m considering: keyboard-driven navigation (j&#x2F;k to move between stories), a reader mode that strips articles down to text, and notification support for replies to your comments.

[Other] Untapped Way to Learn a Codebase: Build a Visualizer

[Other] Web Components: The Framework-Free Renaissance

[API/SDK] Show HN: Fostrom, an IoT Cloud Platform built for developers Hey HN! Arjun and Sid here.<p>Fostrom is an IoT Cloud Platform designed for developers to make it really easy to get started and scale fleets. We have Device SDKs (in Python, JS, Elixir, more coming soon), Typed Schemas, Per-Device Mailboxes, Programmable Actions, 4 Global Regions for lower-latency connections, and much more.<p>We&#x27;ve built Fostrom to solve a real need we faced in our previous startup, building a fully automated indoor vertical farm. We spent more time figuring out IoT infrastructure than writing automation logic. Fostrom is the platform we wished existed back then.<p>Over the last few years we&#x27;ve experimented with a lot of interesting tech and architectures, and settled on an architecture that we believe is quite elegant. We wrote a Go&lt;-&gt;Elixir bridge to execute JS code in WASM for Actions, implemented a DuckDB library for Elixir, and wrote a Device Agent in Rust that our SDKs run in the background (<a href="https:&#x2F;&#x2F;github.com&#x2F;fostrom&#x2F;devicekit" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;fostrom&#x2F;devicekit</a>).<p>The most interesting realization we had was about the data architecture. For years, we tried using distributed databases and built complex layers on top of them, but all approaches had significant limitations specifically around consistency and querying. We want to provide operational correctness, rich insights, and reliability. Finally, we came to the conclusion that to achieve this we really need a SQL database for fleet data. So we built a DuckDB-based replicated multi-tenant data layer. We&#x27;re still improving it (hence the Technical Preview badge) but we&#x27;re quite proud of this decision. It simplifies the rest of the codebase, while keeping operational complexity in just a few places.<p>Our vision is to make a powerful IoT platform that enables you to build correct, secure, and reliable connected systems without dealing with any of the plumbing or infrastructure.<p>Next up, we&#x27;re gonna launch our CLI, add automatic device monitoring to our Device SDKs, and improve the debugging experience. We have some pretty cool ideas to make Fostrom and the experience of developing connected systems better. We&#x27;re also going to write more about our architecture and journey soon.<p>We also published our launch blog post which goes into more detail about our vision, what we&#x27;ve built, and our future plans: <a href="https:&#x2F;&#x2F;fostrom.io&#x2F;blog&#x2F;introducing-fostrom" rel="nofollow">https:&#x2F;&#x2F;fostrom.io&#x2F;blog&#x2F;introducing-fostrom</a><p>Would love for you to try out Fostrom and give us your feedback and thoughts.

[CLI Tool] 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&#x27;s notification body is always just &quot;Claude is waiting for your input&quot; with no context, and with enough tabs open, I couldn&#x27;t even read the titles anymore.<p>I tried a few coding orchestrators but most of them were Electron&#x2F;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&#x2F;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&#x2F;99&#x2F;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&#x2F;tabs, split panes, send keystrokes, open URLs in the browser.<p>Demo video: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=i-WxO5YUTOs" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=i-WxO5YUTOs</a><p>Repo (AGPL): <a href="https:&#x2F;&#x2F;github.com&#x2F;manaflow-ai&#x2F;cmux" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;manaflow-ai&#x2F;cmux</a><p>[1] <a href="https:&#x2F;&#x2F;github.com&#x2F;vercel-labs&#x2F;agent-browser" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;vercel-labs&#x2F;agent-browser</a>

[CLI Tool] A terminal weather app with ASCII animations driven by real-time weather data