🛠️ All DevTools

Ghostty – Terminal Emulator

A set of ready to use Agent Skills for research, science, engineering, analysis, finance and writing.

Show HN: Vertex.js – A 1kloc SPA Framework Vertex is a 1kloc SPA framework containing everything you need from React, Ractive-Load and jQuery while still being jQuery-compatible.<p>vertex.js is a single, self-contained file with no build step and no dependencies.<p>Also exhibits the curious quality of being faster than over a decade of engineering at Facebook in some cases: <a href="https:&#x2F;&#x2F;files.catbox.moe&#x2F;sqei0d.png" rel="nofollow">https:&#x2F;&#x2F;files.catbox.moe&#x2F;sqei0d.png</a>

Show HN: Rust compiler in PHP emitting x86-64 executables

Show HN: Terminal-Style Portfolio on the Internet Posted about this last year, since then learned a lot, changed a lot and can still say it&#x27;s the best Terminal-Style Portfolio Website on The Internet

Show HN: Effective Git As many of us shift from being software engineers to software managers, tracking changes the right way is growing more important.<p>It’s time to truly understand and master Git.

Decision trees – the unreasonable power of nested decision rules

Show HN: Built a tool that turns your GitHub commits into build-in-public posts I kept failing at building in public for the same reason every time: not fear of judgment, just the blank page after a long day of shipping.<p>Something always happened. But converting &quot;refactored auth flow&quot; or &quot;fixed that edge case that&#x27;s been annoying me for a week&quot; into something worth posting felt like a second job on top of the actual job. So I&#x27;d skip it. Then skip it again. Then stop entirely.<p>The approach: connect your GitHub, it pulls recent commits and repo activity, and generates draft posts for multiple platforms in your tone — raw founder voice, not content creator polish. The idea is you&#x27;re always starting from something real you actually did, not staring at a blank box trying to manufacture insight.<p>A few decisions I made consciously:<p>Didn&#x27;t want to build another scheduler. Hypefury&#x2F;Typefully solve distribution. This solves the upstream problem: knowing what to say in the first place.<p>Kept the output editable and minimal — 2-3 options per session, short, easy to tweak. Not trying to automate your voice, just unblock it. Free tier to start. Wanted real usage before charging anyone.<p>Still early. Roadmap includes better tone calibration, tighter commit parsing, and more platform targets. But I&#x27;ve been using it daily myself which is the real test. Would love feedback, especially from anyone who&#x27;s tried and failed at BIP consistency before.

WiFi DensePose turns commodity WiFi signals into real-time human pose estimation, vital sign monitoring, and presence detection — all without a single pixel of video.

Show HN: React-Kino – Cinematic scroll storytelling for React (1KB core) I built react-kino because I wanted Apple-style scroll experiences in React without pulling in GSAP (33KB for ScrollTrigger alone).<p>The core scroll engine is under 1KB gzipped. It uses CSS position: sticky with a spacer div for pinning — same technique as ScrollTrigger but with zero dependencies.<p>12 declarative components: Scene, Reveal, Parallax, Counter, TextReveal, CompareSlider, VideoScroll, HorizontalScroll, Progress, Marquee, StickyHeader.<p>SSR-safe, respects prefers-reduced-motion, works with Next.js App Router.<p>Demo: <a href="https:&#x2F;&#x2F;react-kino.dev" rel="nofollow">https:&#x2F;&#x2F;react-kino.dev</a> GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;btahir&#x2F;react-kino" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;btahir&#x2F;react-kino</a> npm: npm install react-kino

Mount Mayhem at Netflix: Scaling Containers on Modern CPUs

We Built a Video Rendering Engine by Lying to the Browser About What Time It Is

Show HN: Userscript to Display Age/Karma of HN Users Small script to display account age&#x2F;karma next to all usernames, so you have that info available to you without clicking through to someone&#x27;s profile. Opus 4.6 written, it&#x27;s a mess but it works :) Using with Tampermonkey on Firefox.

Show HN: Computer Agents – Agents that work while you sleep Hey HN, Most AI “agents” I’ve tried are basically chatbots with amnesia — they forget everything the moment you close the tab and can’t do anything unless you’re sitting there watching them. I wanted real AI coworkers that just… work. So I built Computer Agents (aiOS). Every agent you create gets its own isolated computer in the cloud — complete with persistent memory, a real file system, code execution environment (with automatic dependency management), and the ability to run scheduled or webhook-triggered tasks 24&#x2F;7. You give it a goal (“research this market and email me a report every Monday”, “generate floor plans from client briefs”, “handle incoming support emails”, “run my weekly data analysis”), walk away, and come back to finished results in your inbox, Telegram, or dashboard. Key highlights: • Persistent workspaces — context and files survive forever (no more “remember what we talked about last week?”) • Native iOS app (iPhone + iPad) + native Mac app + web dashboard • Python + TypeScript SDKs (pip install computer-agents, npm install computer-agents) • Multi-agent orchestration (sequential, parallel, map-reduce, conditional flows) • Built-in skills: deep web research with citations, web search, image generation, full code interpreter • Integrations: Email, Telegram, GitHub, Google Drive, OneDrive, Notion, webhooks, etc. • Runs in secure isolated cloud containers (you own your data) It’s live at <a href="https:&#x2F;&#x2F;computer-agents.com" rel="nofollow">https:&#x2F;&#x2F;computer-agents.com</a> Free tier gives you 150 compute tokens (~15–23 decent-sized tasks) so you can try it right now. Pro starts at $19&#x2F;mo when you want more. This is very much still a young indie project (I’m the solo founder), but it’s already helping real teams automate support, research, content, and coding workflows. Would love your honest feedback — especially: • What persistent&#x2F;long-running agent pain points have you hit with other tools? • Interesting use cases you’d want to try? • Thoughts on the architecture (sandboxing, persistence model, orchestration) Happy to answer any questions! Thanks, Jan Luca (indie maker behind Computer Agents) P.S. If you’re into computer-use agents, we also have a comparison page: <a href="https:&#x2F;&#x2F;computer-agents.com&#x2F;compare&#x2F;computer-use-agents" rel="nofollow">https:&#x2F;&#x2F;computer-agents.com&#x2F;compare&#x2F;computer-use-agents</a>

The Science of Detecting LLM-Generated Text (2024)

An agentic skills framework & software development methodology that works.

Sub2API-CRS2 一站式开源中转服务，让 Claude、Openai 、Gemini、Antigravity订阅统一接入，支持拼车共享，更高效分摊成本，原生工具无缝使用。

💖🧸 Self hosted, you-owned Grok Companion, a container of souls of waifu, cyber livings to bring them into our worlds, wishing to achieve Neuro-sama's altitude. Capable of realtime voice chat, Minecraft, Factorio playing. Web / macOS / Windows supported.

Show HN: Xmloxide – an agent-made Rust replacement for libxml2 Recently several AI labs have published experiments where they tried to get AI coding agents to complete large software projects.<p>- Cursor attempted to make a browser from scratch: <a href="https:&#x2F;&#x2F;cursor.com&#x2F;blog&#x2F;scaling-agents" rel="nofollow">https:&#x2F;&#x2F;cursor.com&#x2F;blog&#x2F;scaling-agents</a><p>- Anthropic attempted to make a C Compiler: <a href="https:&#x2F;&#x2F;www.anthropic.com&#x2F;engineering&#x2F;building-c-compiler" rel="nofollow">https:&#x2F;&#x2F;www.anthropic.com&#x2F;engineering&#x2F;building-c-compiler</a><p>I have been wondering if there are software packages that can be easily reproduced by taking the available test suites and tasking agents to work on projects until the existing test suites pass.<p>After playing with this concept by having Claude Code reproduce redis and sqlite, I began looking for software packages where an agent-made reproduction might actually be useful.<p>I found libxml2, a widely used, open-source C language library designed for parsing, creating, and manipulating XML and HTML documents. Three months ago it became unmaintained with the update, &quot;This project is unmaintained and has [known security issues](<a href="https:&#x2F;&#x2F;gitlab.gnome.org&#x2F;GNOME&#x2F;libxml2&#x2F;-&#x2F;issues&#x2F;346" rel="nofollow">https:&#x2F;&#x2F;gitlab.gnome.org&#x2F;GNOME&#x2F;libxml2&#x2F;-&#x2F;issues&#x2F;346</a>). It is foolish to use this software to process untrusted data.&quot;.<p>With a few days of work, I was able to create xmloxide, a memory safe rust replacement for libxml2 which passes the compatibility suite as well as the W3C XML Conformance Test Suite. Performance is similar on most parsing operations and better on serialization. It comes with a C API so that it can be a replacement for existing uses of libxml2.<p>- crates.io: <a href="https:&#x2F;&#x2F;crates.io&#x2F;crates&#x2F;xmloxide" rel="nofollow">https:&#x2F;&#x2F;crates.io&#x2F;crates&#x2F;xmloxide</a><p>- GitHub release: <a href="https:&#x2F;&#x2F;github.com&#x2F;jonwiggins&#x2F;xmloxide&#x2F;releases&#x2F;tag&#x2F;v0.1.0" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;jonwiggins&#x2F;xmloxide&#x2F;releases&#x2F;tag&#x2F;v0.1.0</a><p>While I don&#x27;t expect people to cut over to this new and unproven package, I do think there is something interesting to think about here in how coding agents like Claude Code can quickly iterate given a test suite. It&#x27;s possible the legacy code problem that COBOL and other systems present will go away as rewrites become easier. The problem of ongoing maintenance to fix CVEs and update to later package versions becomes a larger percentage of software package management work.

Show HN: I built a tool to translate and declutter articles for my immigrant mom Hello HN,<p>I built DuLink to solve a personal problem: my primary language is English, but my mother’s primary language is Mandarin Chinese. I often find articles on health or current events that I want to share with her, but the friction of copy&#x2F;pasting and Google Translate meant she rarely read them.<p>What it does:<p>DuLink takes an article URL, extracts the core content to strip out clutter, and then generates a static, translated reading view. It preserves the semantic HTML structure (headers, lists) but removes the original site&#x27;s JS and ad tracking.<p>The &quot;Why&quot;:<p>Existing tools either translate the entire messy page (including nav menus&#x2F;footers) or require the recipient to install an extension. I wanted something truly simple. A &quot;fire and forget&quot; link that removed every obstacle. No setup, no extra tools, just open and understand. I also added audio playback because reading dense text on a phone can be tiring, especially for aging eyes. Sometimes listening is simply easier.<p>I built this for a personal use case, but I&#x27;m sharing it here for anyone who wants to share something meaningful across languages. If it helps you bridge that gap, I&#x27;d love to hear about it.<p>Any feedback is welcome.<p><a href="https:&#x2F;&#x2F;dulink.click&#x2F;" rel="nofollow">https:&#x2F;&#x2F;dulink.click&#x2F;</a>