🛠️ All DevTools

[Other] Zutty: Zero-cost Unicode Teletype, high-end terminal for low-end systems

[Other] A collection of (mostly) technical things every software developer should know about

[Other] ⚡️ Express inspired web framework written in Go

[API/SDK] Gin is a high-performance HTTP web framework written in Go. It provides a Martini-like API but with significantly better performance—up to 40 times faster—thanks to httprouter. Gin is designed for building REST APIs, web applications, and microservices.

[Other] Targetting specific characters with CSS rules

[CLI Tool] Show HN: Devbox – Containers for clean dev environments I&#x27;ve been frustrated with dependency hell and clutter on my VPS from dev, so I built Devbox: a lightweight, open-source CLI tool that spins up isolated development environments using Docker. Each project runs in its own container, but your code stays in simple flat folders on the host machine—no messing with volumes or sync issues. Environments are disposable, so you can nuke and recreate them without losing your work. Key features:<p>- Instant setup: `devbox init my-project` and you&#x27;re in a fresh env with `devbox shell`.<p>- Configurable via JSON: Define packages, services, and more in a `devbox.json` file. Share it in your repo for reproducible setups—teammates just run `devbox up`.<p>- Docker-in-Docker by default: Build and run containers inside your env without extra config.<p>- Host-friendly: Edit code directly on your machine; the container handles the runtime.<p>- Templates for quick starts: Built-ins for Python, Node.js, Go, web dev, etc.<p>- Advanced options: Port mapping, env vars, resource limits, and even mounting your dotfiles.<p>It&#x27;s FOSS (MIT license), Linux-focused (Debian&#x2F;Ubuntu, or WSL2 on Windows), and super easy to install: `curl -fsSL <a href="https:&#x2F;&#x2F;devbox.ar0.eu&#x2F;install.sh" rel="nofollow">https:&#x2F;&#x2F;devbox.ar0.eu&#x2F;install.sh</a> | bash`.<p>Check out the launch page and docs at <a href="https:&#x2F;&#x2F;devbox.ar0.eu" rel="nofollow">https:&#x2F;&#x2F;devbox.ar0.eu</a>, or the repo at <a href="https:&#x2F;&#x2F;github.com&#x2F;itzCozi&#x2F;devbox" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;itzCozi&#x2F;devbox</a>. I&#x27;d love some feedback, stars, or contributions to help grow this into a solid community tool!

[Monitoring/Observability] Show HN: Kekkai – a simple, fast file integrity monitoring tool in Go I built a tool called *Kekkai* for file integrity monitoring in production environments. It records file hashes during deployment and later verifies them to detect unauthorized modifications (e.g. from OS command injection or tampering).<p>Why it matters:<p>* Many web apps (PHP, Ruby, Python, etc.) on AWS EC2 need a lightweight way to confirm their code hasn’t been changed. * Traditional approaches that rely on metadata often create false positives. * Kekkai checks only file content, so it reliably detects real changes. * I’ve deployed it to an EC2 PHP application in production, and it’s working smoothly so far.<p>Key points:<p>* *Content-only hashing* (ignores timestamps&#x2F;metadata) * *Symlink protection* (detects swaps&#x2F;changes) * *Secure S3 storage* (deploy servers write-only, app servers read-only) * *Single Go binary* with minimal dependencies<p>Would love feedback from others running apps on EC2 or managing file integrity in production.

[Other] Show HN: Open-source AI data generator (now hosted) Hey HN! A few months ago we shared our AI dataset generator as an open source repo, and the response was incredible (<a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=44388093">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=44388093</a>). We got requests from folks who wanted to use it without the hosting overhead, so we created both options: a hosted version (<a href="https:&#x2F;&#x2F;www.metabase.com&#x2F;ai-data-generator" rel="nofollow">https:&#x2F;&#x2F;www.metabase.com&#x2F;ai-data-generator</a> for instant use and the source code fully open (<a href="https:&#x2F;&#x2F;github.com&#x2F;metabase&#x2F;dataset-generator" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;metabase&#x2F;dataset-generator</a>) for anyone who wants to self-host or contribute.<p>Looking forward to seeing how you use it and what you build on top of it!<p>Bonus: The repo now supports multi-provider LLM integration with LiteLLM, thanks to a great contribution from their team.

[Other] Ultra efficient vector extension for SQLite

[Other] Show HN: SSH-hypervisor – like SSH, but each user gets their own microVM This is a project I made over the weekend. What if when you SSH&#x27;d into a machine, instead of giving you a user login, it would provision a new microVM just for you?<p>It&#x27;s like a little SimCity for VMs.<p>This turned out to be a lot of fun, and I&#x27;ve wanted to make my own custom SSH server for a while now, with its fancy progress bars and color animations. The hardest part was definitely debugging VM setup, boot, and networking though! Compiling the Linux kernel with all the right configs was difficult. For a while I had issues with silent hangs on boot due to lack of available system entropy, on Linux &lt;4.19. Anyway, I wrote a bit about my struggles. :D<p>I managed to bundle everything (vmlinux 6.1, firecracker, SSH server, iptables&#x2F;bridge&#x2F;masquerade) into a single, statically-linked binary for x86_64&#x2F;aarch64. It takes the kernel rootfs as a command-line argument.

[Other] Show HN: WindowSill Hey everyone! I&#x27;m excited to unveil WindowSill, a universal command bar for Windows 10 and 11 that brings AI-powered text assistance and a suite of productivity tools directly to wherever you&#x27;re working.<p>Why WindowSill? Inspired by the MacBook Touch Bar, StreamDeck, and Apple Intelligence, I wanted a tool that gives context-aware actions without interrupting my workflow. WindowSill is my take on that idea for Windows.<p>What it can do<p>AI text assistant Select any text in any app to summarize, rewrite, translate, or fix grammar instantly. No copy&#x2F;paste needed. No switching apps needed.<p>Short-Term Reminders Set reminders that can pop up as full-screen notifications, so you can&#x27;t miss them. Perfect for ADHD brains, multitaskers, or anyone who needs a firm nudge to stay on track of things.<p>Clipboard history Access your recent copies without switching apps.<p>URL &amp; text utilities Select any URL in any app to shorten it or generate a QR Code.<p>Media &amp; Meetings controls Manage playback, mute&#x2F;unmute from Microsoft Teams, even when the app is in the background or minimized.<p>Personalization Save custom prompts, dock the &quot;sill&quot; to the top, bottom, left, right, or change its size to reflect your style and needs.<p>All from a single, universal command bar that stays out of your way — no friction, no app switching.<p>Bonus: the app is extensible! It comes with an SDK allowing any app to integrate with WindowSill.<p>Who is it for? Mainly Windows power users, but also anyone looking to boost their productivity with AI-powered text assistance and quick access to useful tools.<p>Try it today for free! Visit <a href="https:&#x2F;&#x2F;getwindowsill.app" rel="nofollow">https:&#x2F;&#x2F;getwindowsill.app</a> Product Hunt launch: <a href="https:&#x2F;&#x2F;www.producthunt.com&#x2F;products&#x2F;windowsill-2" rel="nofollow">https:&#x2F;&#x2F;www.producthunt.com&#x2F;products&#x2F;windowsill-2</a><p>I&#x27;d love your feedback: what features would make WindowSill most useful for you? Or what would you like to see next?

[Other] Zig feels more practical than Rust for real-world CLI tools

[Other] A refined agentic model for developers DeepSeek-V3.1-Terminus is the latest update to the DeepSeek-V3.1 model. This "Terminus" version focuses on stability and refinement, fixing issues like language mixing and improving agent capabilities, while retaining the core strengths of the V3.1 series.

[Other] Webhook infra for high-velocity dev teams Webhooks are critical — but they’re not your core product. Let Vartiq handle the reliability layer behind them. Scale confidently with built-in retries, queue handling, SLAs and observability.

[Other] AI agents that build full-stack internal tools for you. Build production-ready full-stack applications with AI agents that turn text into apps - UI, queries, workflows, and more. Secure, scalable, and flexible: AI when it works, no-code when you want, low-code when you need. 36k stars on GiHub.

[Other] Cursor/Lovable for n8n to generate workflows in seconds Vibe n8n is an AI assistant that generates, improves, and debugs complete n8n automations directly inside your editor. Works with n8n.io, n8n.cloud, and self-hosted.

[API/SDK] Automated reports without coding Generate pixel-perfect PDF reports from structured data using reusable templates. Design once, reuse forever. Simple API, multi-locale, audit-friendly output. Built for finance, insurance, and SaaS teams that outgrew Crystal and Excel.

[Other] Vector map tiles (pbf) Ultra-low cost vector map tiles for developers. $10 = 1,000,000 PBF tiles. Start with 250k free after sign-up. Prepaid auto-buy via Stripe, safety limits. MapLibre quickstart. Cloudflare CDN.

[Other] Push and it’s live. as simple as that. Nexting is the affordable way to deploy your Next.js projects — just /month for 1TB bandwidth, PostgreSQL database, and 5GB storage. Simple, fast, and built for indie developers.

[Other] Design click‑to‑reply menus, automate responses Build deterministic chatbot menus for Website, WhatsApp, Messager and Telegram for Chatwoot. Design click-to-reply flows, automate responses, and hand off to agents.