🛠️ All DevTools

[IDE/Editor] Show HN: Browser Based IDE for Love2D

[Other] Self-referencing Page Tables for the x86-Architecture

[Other] Worry Less, Contribute More ossium - Your foundation for discovering & managing the best open source projects in seconds. Free OSS discovery platform for developers. Browse GitHub repositories & trending projects.

[Other] Python Quick Tools – 20+ Easy Automation Scripts Save time daily with these simple, ready-to-run Python scripts! Perfect for beginners or anyone tired of repetitive tasks. What's inside (20+ scripts): • File & folder automation (rename, organize, find duplicates, backup) • Data & CSV helpers (clean files, count words) • Useful utilities (QR codes, passwords, image resizing) • Fun & quick tools (games, calculators, converters)

[DevOps] Build Docker homelabs the right way — no magic, no lock-in SANCTUM is a homelab generator that produces clean, production-ready Docker Compose setups. Choose the services you want, detect conflicts automatically, and get a setup you fully own and understand. No opinionated stacks, no hidden magic, no lock-in. Start free with up to 3 services, or subscribe for unlimited services and continuous updates. Built for developers, homelabbers, and anyone who wants Docker done right.

[Other] Launch Brawser Extension This AI-powered extension generates YouTube chapters with timestamps in one click. It scans your video, creates clear, search-optimized chapter titles, and lets you copy them directly into the description. It works even without subtitles and helps improve navigation, watch time, and search visibility for long videos.

[Other] Show HN: Vibium – Browser automation for AI and humans, by Selenium's creator i started the selenium project 21 years ago. vibium is what i'd build if i started over today with ai agents in mind. go binary under the hood (handles browser, bidi, mcp) but devs never see it. just npm install vibium. python/java coming. for claude code: claude mcp add vibium -- npx -y vibium v1 ships today. ama.

[Other] Show HN: I built an open-source Linux-capable single-board computer with DDR3 I&#x27;ve made an ARM based single-board computer that runs Android and Linux, and has the same size as the Raspberry Pi 3!<p>Why? I was bored during my 2-week high-school vacation and wanted to improve my skills, while adding a bit to the open-source community :P<p>These were the specs I ended up with: - H3 SoC - Quad-Core Cortex-A7 ARM CPU @ 1.3GHz - Mali400 MP2 GPU @ 600MHz - 512MiB of DDR3 RAM (Can be upgraded to 1GiB) - WiFi, Bluetooth &amp; Ethernet PHY - HDMI display port - 1080p resolution - 5x USB Slots: 2x USB-A, 1x USB-C Host, 1x USB-C Host &amp; OTG, 1x USB-C PD for power (Negotiating up to 25W. No power socket, yay!) - 32 GB of eMMC 5.1 storage (Optional) - 3.5mm audio jack - SD Card slot - Lots of GPIO<p>I&#x27;ve picked the H3 CPU mainly for its low cost yet powerful capabilities, and it&#x27;s pretty well supported by the Linux kernel. Plus, I couldn&#x27;t find any open-source designs with this chip, so I decided to contribute a bit and fill the gap.<p>A 4-layer PCB was used for its lower price and to make the project more challenging, but if these boards are to be mass-produced, I&#x27;d bump it up to 6 and use a solid ground plane as the bottom layer&#x27;s reference plane. The DDR3 and CPU fanout was truly a challenge in a 4-layer board.<p>The PCB was designed in KiCAD and open-source on the Github repo with all the custom symbols and footprints (<a href="https:&#x2F;&#x2F;github.com&#x2F;cheyao&#x2F;icepi-sbc" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;cheyao&#x2F;icepi-sbc</a>). You can also check it out online with kicanvas: <a href="https:&#x2F;&#x2F;kicanvas.org&#x2F;?github=https%3A%2F%2Fgithub.com%2Fcheyao%2Ficepi-sbc%2Ftree%2Fmain%2Fhardware" rel="nofollow">https:&#x2F;&#x2F;kicanvas.org&#x2F;?github=https%3A%2F%2Fgithub.com%2Fchey...</a><p>At large quantities, the price can probably reach less than 20$! (exc. taxes, tariffs and other costs)<p>It has been a wild journey, even making me learn how to use crypto as I needed to pay someone to download some &quot;confidential&quot; files from a baidu drive...<p>Read about more details on Github! Everything is open-source under the Solderpad license, aka do what you want: sell it, build it, modify it! :-)

[Database] Distributed reliable key-value store for the most critical data of a distributed system

[Other] Developer tools for Next.js Free online tools for developers and IT professionals. Access a wide range of handy tools including converters, generators, validators, and analyzers with excellent user experience.

[Other] Show HN: Cosmofy – bundle your Python code for Linux/Windows/MacOS Bundle up a pure python project into a single Cosmopolitan Python file that runs on Linux&#x2F;Mac&#x2F;Windows with no changes.

[DevOps] Show HN: Superset – Terminal to run 10 parallel coding agents Hey HN, we’re Avi, Kiet, and Satya. We’re building Superset, an open-source terminal made for managing a bunch of coding agents (Claude Code, Codex, etc) in parallel.<p>- Superset makes it easy to spin up git worktrees and automatically setup your environment<p>- Agents and terminal tabs are isolated to worktrees, preventing conflicts<p>- Built-in hooks [0] to notify when your coding agents are done&#x2F;needs attention,<p>- A diff viewer to review the changes and make PRs quickly<p>We’re three engineers who’ve built and maintained large codebases, and kept wanting to work on as many features in parallel as possible. Git worktrees [1] have been a useful solution for this task but they’re annoying to spin up and manage. We started superset as a tool that uses the best practices we’ve discovered running parallel agents.<p>Here is a demo video:<p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=pHJhKFX2S-4" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=pHJhKFX2S-4</a><p>We all use Superset to build Superset, and it more than doubles our productivity (you’ll be able to tell from the autoupdates). We have many friends using it over their IDE of choice or replacing their terminals with Superset, and it seems to stick because they can keep using whatever CLI agent or tool they want while Superset just augments their existing set of tools.<p>Superset is written predominantly in Typescript and based on Electron, xterm.js, and node-pty. We chose xterm+node-pty because it&#x27;s a proven way to run real PTYs in a desktop app (used by VSCode and Hyper), and Electron lets us ship fast. Next, we’re exploring features like running worktrees in cloud VMs to offload local resources, context sharing between agents, and a top-level orchestration agent for managing many worktrees or projects at once.<p>We’ve learned a lot building this: making a good terminal is more complex than you’d think, and terminal and git defaults aren’t universal (svn vs git, weird shell setups, complex monorepos, etc.).<p>Building a product for yourself is way faster and quite fun. It&#x27;s early days, but we’d love you to try Superset across all your CLI tools and environments, we welcome your feedback! :)<p>[0] <a href="https:&#x2F;&#x2F;code.claude.com&#x2F;docs&#x2F;en&#x2F;hooks" rel="nofollow">https:&#x2F;&#x2F;code.claude.com&#x2F;docs&#x2F;en&#x2F;hooks</a><p>[1] <a href="https:&#x2F;&#x2F;git-scm.com&#x2F;docs&#x2F;git-worktree" rel="nofollow">https:&#x2F;&#x2F;git-scm.com&#x2F;docs&#x2F;git-worktree</a>

[API/SDK] Show HN: Kapso – WhatsApp for developers Hey HN, I&#x27;m Andres. I&#x27;ve been building Kapso as a solo founder, and just crossed 4,000 developers, all organic.<p>WhatsApp has 3B+ users and 98% open rates. You&#x27;d expect developers to be building tons of stuff on it, especially when the US is the fastest-growing market in WhatsApp usage.<p>But it’s not happening… And I&#x27;d bet it&#x27;s because the DX is painful.<p>Every team needs to build the same features again and again. Meta fires webhooks for everything. There&#x27;s valuable data in there for debugging, but no way to make sense of it without building your own tooling.<p>That’s why I built Kapso. What you get:<p>- Working WhatsApp API + inbox in 2 minutes, not days - Full observability: every webhook parsed, every message tracked, actual debugging tools - Multi-tenant platform: generate a setup link, customer connects their Meta account, done - Workflow builder for deterministic automations and AI Agents - WhatsApp Flows: build mini apps inside WhatsApp using AI + serverless functions - Docs that work for humans and LLMs<p>We&#x27;re up to 95% cheaper than Twilio, with a generous free tier (2,000 messages per month).<p>We also open source several tools: a TypeScript client for the WhatsApp Cloud API, a reference WhatsApp Inbox implementation, and a voice AI agent for WhatsApp.<p>GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;gokapso&#x2F;" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;gokapso&#x2F;</a><p>Happy to answer questions!<p><a href="https:&#x2F;&#x2F;kapso.ai&#x2F;" rel="nofollow">https:&#x2F;&#x2F;kapso.ai&#x2F;</a>

[Other] Show HN: Openinary – Self-hosted image processing like Cloudinary Hi HN!<p>I built Openinary because Cloudinary and Uploadcare lock your images and charge per request.<p>Openinary lets you self-host a full image pipeline: transform, optimize, and cache images on your infra; S3, Cloudflare R2, or any S3-compatible storage.<p>It’s the only self-hosted Cloudinary-like tool handling both transformations and delivery with a simple URL API (&#x2F;t&#x2F;w_800,h_800,f_avif&#x2F;sample.jpg).<p>Built with Node.js, Docker-ready.<p>GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;openinary&#x2F;openinary" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;openinary&#x2F;openinary</a><p>Feedback welcome; especially from Cloudinary users wanting the same UX but on their own infra!

[Other] Show HN: Mysti – Claude, Codex, and Gemini debate your code, then synthesize Hey HN! I&#x27;m Baha, creator of Mysti.<p>The problem: I pay for Claude Pro, ChatGPT Plus, and Gemini but only one could help at a time. On tricky architecture decisions, I wanted a second opinion.<p>The solution: Mysti lets you pick any two AI agents (Claude Code, Codex, Gemini) to collaborate. They each analyze your request, debate approaches, then synthesize the best solution.<p>Your prompt → Agent 1 analyzes → Agent 2 analyzes → Discussion → Synthesized solution<p>Why this matters: each model has different training and blind spots. Two perspectives catch edge cases one would miss. It&#x27;s like pair programming with two senior devs who actually discuss before answering.<p>What you get: * Use your existing subscriptions (no new accounts, just your CLI tools) * 16 personas (Architect, Debugger, Security Expert, etc) * Full permission control from read-only to autonomous * Unified context when switching agents<p>Tech: TypeScript, VS Code Extension API, shells out to claude-code&#x2F;codex-cli&#x2F;gemini-cli<p>License: BSL 1.1, free for personal and educational use, converts to MIT in 2030 (would love input on this, does it make sense to just go MIT?)<p>GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;DeepMyst&#x2F;Mysti" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;DeepMyst&#x2F;Mysti</a><p>Would love feedback on the brainstorm mode. Is multi-agent collaboration actually useful or am I just solving my own niche problem?

[Other] Carnap – A formal logic framework for Haskell

[Monitoring/Observability] Background job monitoring & instant alerts Monitor cron jobs, queues, and serverless workers with simple HTTP pings. Get instant alerts when they fail or go missing.

[Other] Run powerful PDF, Image, and Dev tools offline. 100% Privacy The all-in-one privacy-focused digital toolkit for developers and professionals. Run PDF tools, converters, and calculators offline in your browser. No server uploads.

[CLI Tool] Run AI agents like Claude Code, Codex, Opencode on mobile Vibe Pocket is a cloud based platform for running AI agents like Claude Code, Codex, opencode, on mobile or web. Connect GitHub, pick an agent, and start building from any device. More than 15 CLI agents are supported including Claude Code, Codex, Gemini CLI, OpenCode, Droid, AMP Cli, Crush, Aider... You can also connect to the terminal and run your apps or any command you want just like on a computer terminal easily. You can also access your running web apps directly within Vibe Pocket.

[Other] Tc – Theodore Calvin's language-agnostic testing framework