🛠️ All DevTools

[Other] This repository is a mirror ofhttps://git.openwrt.org/openwrt/openwrt.gitIt is for reference only and is not active for check-ins. We will continue to accept Pull Requests here. They will be merged via staging trees then into openwrt.git.

[Other] Using Claude Code to modernize a 25-year-old kernel driver

[Other] Taking Buildkite from a side project to a global company

[Other] Pico CSS – Minimal CSS Framework for Semantic HTML

[CLI Tool] Show HN: Psq – CLI for Postgres Monitoring

[CLI Tool] Show HN: GitType – A typing game that uses your own Git repo as practice text I built a small Rust CLI game called GitType.<p>It’s a typing practice tool that takes <i>your own Git repository</i> and turns the code inside into typing material. Instead of random words, you type through real functions, comments, and code you’ve written — making practice feel closer to real-world programming.<p>Features: - Works directly in the terminal (no GUI required) - Pulls text from any local Git repo - Tracks WPM and accuracy - Keeps a history of your past runs (so you can see progress over time) - Fun ranking titles based on your score<p>Source and install instructions: <a href="https:&#x2F;&#x2F;github.com&#x2F;unhappychoice&#x2F;gittype" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;unhappychoice&#x2F;gittype</a><p>Would love feedback from fellow devs — especially around the scoring system and ideas for new modes. :)

[Testing] Show HN: Vizzly – Visual testing platform with built-in review workflows Hey HN! I’m Robert. I worked on [Percy’s SDKs&#x2F;support from 2018–2022.](<a href="https:&#x2F;&#x2F;github.com&#x2F;percy&#x2F;cli&#x2F;graphs&#x2F;contributors" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;percy&#x2F;cli&#x2F;graphs&#x2F;contributors</a>) If you ever reached out to support or opened an issue, I probably helped you. Hopefully it was positive :) After a few years away, visual testing still felt stuck, so I&#x27;m building Vizzly.<p>The problem: Design handoffs kinda suck. Designers make beautiful specs, devs implement them, then everyone realizes the details got lost somewhere. Current visual testing tools catch broken CSS but miss the real issue - making sure what ships actually matches what was designed, functionally (like really in the browser&#x2F;OS&#x2F;etc).<p>What it is<p>- Visual testing + review where you send actual screenshots (not DOM re-renders). Can be _any_ image to review (PDFS!)<p>- Collaboration built-in: reviewer assignment, approvals, @mentions, screenshot-level threads.<p>- Baselines: automatic (Git-aware), manual (not Git-based), or hybrid.<p>- Team-based pricing; generous free plan for OSS; on-prem available.<p>What’s different<p>- Capture-first: use the pixels your app produced (no “but it doesn’t look like that on my machine&#x2F;CI”).<p>- Local TDD + CI parity: run locally with instant feedback; same flow in CI.<p>- Custom properties to filter&#x2F;slice reviews (component, viewport, theme, etc).<p>Try it quickly (Playwright example)<p>```<p>npm i -D @vizzly-testing&#x2F;cli<p>export VIZZLY_TOKEN=your-token<p># in your tests:<p>import { vizzlyScreenshot } from &#x27;@vizzly-testing&#x2F;cli&#x27;;<p>let img = await page.screenshot({ fullPage: true });<p>await vizzlyScreenshot(&#x27;homepage-layout&#x27;, img);<p>```<p>I would love feedback on everything! Rough edges you hit using the product&#x2F;sdk, baseline expectations across branches, what you need for design&#x2F;dev review to feel “done”, etc. Features like root cause analysis, an MCP, and more collab features are coming. But it&#x27;s just me building :p<p>I&#x27;m a big fan of OSS, so the OSS plan is pretty generous (10 seats + 10 review seats (20 total), unlimited public projects, 75GB, 6 concurrent builds). If it&#x27;s not generous enough for teams, I&#x27;m willing to up it!<p>This is my first time launching anything like this, I&#x27;m super keen on getting feedback and working any support or suggestions folks have. If anyone knew me from my support at Percy, I _really_ enjoy those conversations and opportunities to ship a fix or feature at the end of a chat. If Vizzly isn&#x27;t it for your team, I wanna know why and what I can do to help you.<p>Backstory + screenshots from my intro blog post: <a href="https:&#x2F;&#x2F;robertdelu.ca&#x2F;2025&#x2F;09&#x2F;07&#x2F;vizzly-introduction" rel="nofollow">https:&#x2F;&#x2F;robertdelu.ca&#x2F;2025&#x2F;09&#x2F;07&#x2F;vizzly-introduction</a>

[Other] Show HN: Bottlefire – Build single-executable microVMs from Docker images

[Monitoring/Observability] Lightweight server monitoring hub with historical data, docker stats, and alerts.

[Other] Open Source AI coding assistant for planning, building, and fixing code. We frequently merge features from open-source projects like Roo Code and Cline, while building our own vision. Follow us: kilocode.ai/social

[Other] Show HN: Semantic grep for Claude Code (RUST) (local embeddings)

[Other] Show HN: An Open Source XR(AR/VR) Operating System We&#x27;re two college students building an XR(AR&#x2F;VR) native Operating System with a custom kernel. We&#x27;re also Open Source so feel free to check our GitHub Repository- <a href="https:&#x2F;&#x2F;github.com&#x2F;manaskamal&#x2F;XenevaOS" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;manaskamal&#x2F;XenevaOS</a> .<p>The journey hasn&#x27;t exactly been easy, we&#x27;ve been criticized by a lot saying that whatever we&#x27;re doing is impractical and that we&#x27;re too ambitious. Regardless, we&#x27;ve been committed to reach our goal.<p>Here to answer all questions and doubts. Answering one question beforehand because we know someone is going to ask it -<p>Q: Why use your own kernel&#x2F; Why don&#x27;t you use Linux&#x2F; Why are you trying to reinvent the wheel?<p>A: Using our own kernel helps us get rid of the baggage of legacy codes, bring the most optimal performance on our target hardware (XR&#x2F;AR&#x2F;VR) and achieve more efficiency than what we would&#x27;ve achieved on an existing kernel.<p>We&#x27;re not trying to reinvent the wheel, but just building Formula One racing tyres for it.

[Other] Show HN: I'm a dermatologist and I vibe coded a skin cancer learning app Coded using Gemini Pro 2.5 (free version) in about 2-3 hours.<p>Single file including all html&#x2F;js&#x2F;css, Vanilla JS, no backend, scores persisted with localStorage.<p>Deployed using ubuntu&#x2F;apache2&#x2F;python&#x2F;flask on a £5 Digital Ocean server (but could have been hosted on a static hosting provider as it&#x27;s just a single page with no backend).<p>Images &#x2F; metadata stored in an AWS S3 bucket.

[Other] Things you can do with a debugger but not with print debugging

[Other] A collection of reusable Next.js/React components. Namer UI is a collection of reusable Next.js/React components made to empower developers to quickly build beautiful UIs. Spend less time designing UI from the ground up and more time building the features that matter to your users.

[Other] Stop accidentally closing your most important Tabs for Edge DefendTab is the smart guard for your tabs. It prevents you from accidentally closing important pages, protecting your work and sanity. It's an essential tool for students, developers, and anyone who wants to ensure their crucial tabs are safe.

[Other] Instant UI blocks for React & Next.js developers. Rapid-UI helps you build beautiful React/Next.js apps faster. Instantly generate high-quality Tailwind CSS components or copy production-ready code directly from our growing block library.

[Other] Get more google reviews with smart qr code automation ReviewBoost helps local businesses generate more Google reviews using smart QR code funnels, auto-generated reviews, and intelligent filtering. Get more 5-star reviews in 30 days.

[API/SDK] Debug test & optimize your code instantly – all in one API🚀 Test, debug & optimize code instantly – all in one simple API for sideprojects and small dev tasks. 🚀

[API/SDK] Show HN: CrabCamera – Cross-platform camera plugin for Tauri desktop apps After building several Tauri desktop apps, I kept hitting the same wall: there&#x27;s no reliable way to access cameras across Windows, macOS, and Linux. Every project meant reinventing camera integration, dealing with platform-specific APIs, and debugging permission issues.<p><pre><code> So I built CrabCamera – a Tauri plugin that handles all the camera complexity for you. What it does: - One API, three platforms: Same Rust code works on Windows (DirectShow), macOS (AVFoundation), and Linux (V4L2) - Permission handling: Automatically requests camera permissions on each platform - Format conversion: Takes care of the messy bits between platform formats and what your app needs - Error handling: Proper Rust error types instead of mysterious crashes - Hot-plugging: Detects when cameras are connected&#x2F;disconnected The problem it solves: Before CrabCamera, adding camera support to a Tauri app meant: 1. Writing separate native code for each platform 2. Managing three different permission systems 3. Handling format conversions manually 4. Debugging platform-specific edge cases 5. Maintaining it all as OS APIs change Now it&#x27;s just: use crabcamera::Camera; let camera = Camera::new()?; let frame = camera.capture_frame().await?; Why I built it: I was working on a plant monitoring app (botanica) that needed reliable camera access for time-lapse photography. Existing solutions were either abandoned, platform-specific, or required complex native bindings. The Tauri ecosystem is growing fast, but camera support was this obvious gap. Every desktop app eventually needs camera access – video calls, document scanning, AR features, security monitoring. Technical highlights: - Uses nokhwa for the heavy lifting but wraps it in Tauri-friendly APIs - Proper async&#x2F;await support throughout - Memory-efficient streaming for video capture - Built-in image processing pipeline - Extensible plugin architecture What&#x27;s next: - WebRTC integration for video calls - Built-in barcode&#x2F;QR code scanning - Face detection hooks - Performance optimizations for 4K streams The crate is MIT licensed and available on crates.io. I&#x27;d love feedback from other Tauri developers who&#x27;ve wrestled with camera integration. Links: - Crates.io: https:&#x2F;&#x2F;crates.io&#x2F;crates&#x2F;crabcamera - GitHub: https:&#x2F;&#x2F;github.com&#x2F;Michael-A-Kuykendall&#x2F;crabcamera - Documentation: https:&#x2F;&#x2F;docs.rs&#x2F;crabcamera</code></pre>