🛠️ All DevTools

[Other] Show HN: woomarks, transfer your Pocket links to this app or self-host it Pocket is shutting down and I really, really liked it. So I built woomarks, an app that let&#x27;s you save links with a similar UI. It&#x27;s very minimal, but it&#x27;s doing everything I liked from Pocket and you can bulk import your links and use the app or self-host.<p>- Public app that you can test: <a href="https:&#x2F;&#x2F;woomarks.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;woomarks.com&#x2F;</a><p>- My self-hosted version, where you can see my saves: <a href="https:&#x2F;&#x2F;roberto.fyi&#x2F;bookmarks&#x2F;" rel="nofollow">https:&#x2F;&#x2F;roberto.fyi&#x2F;bookmarks&#x2F;</a><p>- Repository if you want to self-host: <a href="https:&#x2F;&#x2F;github.com&#x2F;earlyriser&#x2F;woomarks" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;earlyriser&#x2F;woomarks</a><p>Export links from Pocket here: <a href="https:&#x2F;&#x2F;getpocket.com&#x2F;export" rel="nofollow">https:&#x2F;&#x2F;getpocket.com&#x2F;export</a> the last day will be on October 20025.<p>Features: - Add&#x2F;Delete links - Search - Tags - Bookmarklet (useful for a 2-click-save) - Data reads from: csv file in server (these links are public) local storage in browser (these links are visible just for the user) - Local storage saving. - Import to local storage from csv file - Export to csv from local storage. - Export to csv from csv file (useful when links are &quot;deleted&quot; using the app and just hidden using a local storage blacklist). - Export to csv from both places. - No external libraries. - Vanilla css code. - Vanilla js code.

[Other] Show HN: We built an open-source alternative to expensive pair programming apps My friend and I grew frustrated with the high cost of existing pair programming tools, and of course of grainy screens when we used Huddle or similar tools.<p>We believe core developer collaboration shouldn&#x27;t be locked behind an expensive subscription.<p>So for the past year we spent our nights and weekend building Hopp, an open-source alternative.<p>We would love your feedback and we are here to answer any and all questions.

[Package Manager] Show HN: Simple modenized .NET NuGet server reached RC A simple .NET NuGet server implementation built on Node.js that provides essential NuGet v3 API endpoints.<p>Key Features:<p>* Easy setup, run NuGet server in 10 seconds! * NuGet V3 API compatibility: Support for modern NuGet client operations * No need database management: Store package file and nuspecs into filesystem directly, feel free any database managements * Package publish: Flexible client to upload .nupkg files via HTTP POST using cURL and others * Basic authentication: Setup authentication for publish and general access when you want it * Reverse proxy support: Configurable trusted reverse proxy handling for proper URL resolution * Modern Web UI with enhanced features. * Package importer: Included package importer from existing NuGet server * Docker image available

[Other] Build features. We handle docs. Auto-synced with your code. AutoDocs creates user documentation from your product. You'll feel like you have a dedicated employee writing user docs every time you update your code. Just connect GitHub, review user docs and keep building product to update the docs.

[Other] Show HN: Spotilyrics – See synchronized Spotify lyrics inside VS Code

[DevOps] Show HN: Pitaya – Orchestrate AI coding agents like Claude Code Pitaya is a local, open-source orchestrator for AI coding agents (Claude Code, Codex CLI). It runs many agents in parallel, isolates each in Docker with its own git branch, supports pluggable Python strategies, and persists state so runs are resumable. Quickstart + short demo are in the README.

[Other] Replacing a cache service with a database

[Other] Nyxstone: An LLVM-based (Dis)assembly Framework

[CLI Tool] Show HN: My first Go project, a useless animated bunny sign for your terminal Hi HN, I wanted to share my very first (insignificant) project written in Go: a little CLI tool that displays messages with an animated bunny holding a sign.<p>I wanted to learn Go and needed a small, fun project to get my hands dirty with the language and the process of building and distributing a CLI. I&#x27;ve built a similar tool in JavaScript before so I thought porting it would be a great learning exercise.<p>This was a dive into Go&#x27;s basics for me, from package structure and CLI flag parsing to building binaries for different platforms (never did that on my JS projects).<p>I&#x27;m starting to understand why Go is so praised: it&#x27;s standard library is huge compared with other languages. One thing that really impressed me was the idea (at some point of this journey) to develop a functionality by myself (where in the javascript original project I choose to use an external library), here with the opportunities that std lib was giving me I thought &quot;why don&#x27;t try to create the function by miself?&quot; and it worked! In the Js version I used the nodejs &quot;log-update&quot;, here I write a dedicated pkg.<p>I know it&#x27;s a bit silly, but I could see it being used to add some fun to build scripts or idk highlight important log messages, or just make a colleague smile. It&#x27;s easy to install if you have Go set up:<p><pre><code> go install github.com&#x2F;fsgreco&#x2F;go-bunny-sign&#x2F;cmd&#x2F;bunnysign@latest </code></pre> Since I&#x27;m new to Go, I would genuinely appreciate any feedback on the code, project structure, or Go best practices. The README also lists my planned next steps, like adding tests and setting up CI better.<p>Thanks for taking a look!

[Other] This is the Rust course used by the Android team at Google. It provides you the material to quickly teach Rust.

[Other] Just use `git` to manage your dotfiles

[API/SDK] Build tool-calling agents in 4 lines of code Open-source SDK which allows you to build custom agents which with any tool or native endpoint, with only 4 lines of code. UTCP has collectively +1k GitHub stars, +5k downloads, and is trusted by engineers at AWS, Microsoft, NVIDIA, etc...

[Database] Database ERD Designer LinkDB is a visual database design tool for creating and managing ER diagrams. Import/export SQL for MySQL, PostgreSQL, and SQL Server, collaborate in real time, track version history, and export production-ready scripts all in one place.

[Other] Free online developer tools open source. GitOpenTools is a free open-source collection of 45+ developer tools in one place. Format JSON, test regex, convert Base64, generate passwords & more.

[Other] Create professional README files effortlessly in one click Generate a README for your project. Create professional and eye-catching README files in seconds. Perfect for developers, startups, and open-source projects. One-click simplicity to showcase your work like never before.

[Other] Think. Plan. Go. ProjectMyThoughts.com is an AI-powered productivity tool designed to transform raw notes and ideas into structured project plans.

[Other] Unix time converter tool Transform Unix time to human-readable datetime formats, batch convert multiple timestamps, and access timezone conversions. Perfect for developers who need to convert Unix timestamp to datetime quickly and accurately.

[IDE/Editor] Visual react component editor with in built AI analysis Build, Edit, and Analyze React Components Visually with AI-Powered Insights.

[Other] Show HN: Q.js – Smaller than React/Vue, yet more powerful (40KB gzipped) Q.js is a lightweight JS framework that I recently distilled from our in-house Qbix platform that I’ve been building since 2011. It powers many of our social apps, which have all the features of Facebook, LinkedIn, X, etc.<p>We’re not a big company like Google or Meta, so we never released it publicly. Now I’d like to, and thought it would be a good idea to post it on HN and gather some feedback.<p>Q.minimal.js was designed to be dropped into any website. It lazy-loads all your components only as they are needed and appear on the screen. The minimal file is meant as a starting point for developers, and if you later want more features from the Qbix platform, you can simply swap it out for the larger Q.js file instead.<p>Here are some advantages of Q.minimal.js compared to React, Angular, Vue, or whatever you might be using now:<p>40KB gzipped, smaller than React (without ReactDOM), smaller than Vue runtime, far smaller than Angular<p>No build step, just drop it in; works with plain .html &lt;template&gt; files or with JS&#x2F;Handlebars templates<p>Components &amp; tools, like React components or Vue directives, but attachable as behaviors to any DOM element<p>Faster rendering with requestAnimationFrame and .rendering(), no giant virtual DOM reconciliation<p>Built-in power: batching, caching, lazyloading, routing, slot-based page activation, all included in core<p>Universal dev model: designers can use pure HTML, developers can use JS, both work interchangeably<p>Incremental: drop it into an existing site without rewriting or compiling anything<p>If you have a free hour, give it a try! Play around with it, and let me know what you think. It&#x27;s 100% free and open source under MIT license and I&#x27;m looking to polish up any rough edges before letting developers know about it.

[CLI Tool] Show HN: Captan – Open-Source Cap Table Management CLI I built Captan (<a href="https:&#x2F;&#x2F;github.com&#x2F;acossta&#x2F;captan" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;acossta&#x2F;captan</a>), a tiny open-source CLI tool for managing startup cap tables.<p>Instead of juggling spreadsheets or paying for expensive SaaS cap table solutions, Captan stores everything in a simple JSON file that you can version-control in Git.<p>It supports:<p>- Stakeholders (founders, employees, investors)<p>- Security classes (Common, Preferred, Option Pool)<p>- Share issuances<p>- Option grants with vesting schedules (monthly, cliff)<p>- SAFEs (record + simulate conversion at a priced round)<p>- Cap table math (Outstanding vs Fully Diluted)<p>- CSV&#x2F;JSON exports<p>- Audit log (&quot;the ship’s log&quot;)<p>Overall a JSON in git will offer better auditability and version control than most commercial solutions out there.<p>Modeling different scenarios is super easy, just create a git branch and model whatever you need.<p>Quick taste:<p>---------------------------------------<p>npm install -g captan<p>$captan init --name &quot;Acme, Inc.&quot; --pool-pct 20<p>$captan enlist stakeholder --name &quot;Alice Founder&quot;<p>$captan issue --security sc_common --holder sh_alice --qty 5000000<p>$captan chart<p>Example output:<p>Captan — Cap Table (as of today)<p>Name Outstanding %<p>Alice Founder 5000000 100.00%<p>Totals<p>Issued equity: 5000000<p>Vested options: 0<p>Outstanding total: 5000000<p>Fully diluted total: 7000000<p>---------------------------------------<p>Why I built it: early-stage founders (myself included) often don’t need Carta or Pulley yet — just a clean, hackable way to track ownership. I wanted something transparent, developer-friendly, and Git-native.<p>Repo: <a href="https:&#x2F;&#x2F;github.com&#x2F;acossta&#x2F;captan" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;acossta&#x2F;captan</a><p>npm: <a href="https:&#x2F;&#x2F;www.npmjs.com&#x2F;package&#x2F;captan" rel="nofollow">https:&#x2F;&#x2F;www.npmjs.com&#x2F;package&#x2F;captan</a><p>I’d love feedback on what features would make this more useful to you?<p>Thanks!