🛠️ All DevTools

[Testing] Instant compliant test data for engineering teams Test data bottlenecks kill velocity. Teams wait days for data refreshes or secretly use production. GoMask delivers instant, compliant test data through schema-aware masking and AI synthesis. Minutes, not days. Compliance built-in, not bolted on.

[IDE/Editor] AI code editor for PyTorch development on GPU workspaces The new AI Code Editor brings AI directly into Lightning Studios and Notebooks. Developers can tap into PyTorch-focused “experts” for training, inference, or RL tasks to build, debug, optimize, and deploy code faster inside a single cloud-native environment.

[Other] One workspace where AI, code, and teams work together AI workspace for teams and devs. It connects your code, tools, and teammates in one place — so you can build, refactor, and ship together without context-switching.

[Other] Assign, steer, and track copilot coding agent tasks GitHub Mission Control is a unified command center that follows you wherever you work. It’s not a single destination; it’s a consistent interface across GitHub, VS Code, mobile, and the CLI that lets you direct, monitor, and manage every AI-driven task. With mission control, you can choose from a fleet of agents, assign them work in parallel, and track their progress from any device.

[Other] Build full-stack apps with AI from Database first Zoer is an AI-powered platform that builds full-stack apps in minutes — complete with auto-generated database, authentication, responsive UI, and backend logic. Just describe your idea, and let AI handle the coding, structuring, and integration.

[Other] Your Glucose Levels. Right in Your IDE. Visual Code Extensions to display CGM blood glucose readings in your Visual Studio Code status bar.

[Other] Fill forms instantly with fake data Save hours of testing time. Instantly fill web forms with realistic fake data — powered by Faker.js. A free browser extension for developers and QA professionals.

[Other] Free multilingual resume builder in 64 languages Create professional resumes in 64 languages. No registration required, AI-powered text enhancement, and instant PDF download. Build your perfect CV in minutes.

[Other] A modern, customizable GanttChart component. An open-source Gantt chart component built with Vue 3 and TypeScript. Easily add timeline visualization, task scheduling, and drag-and-drop interaction to your project management apps. 🎬 Live Demo now available! Try it here 👉https://nelson820125.github.io/jordium-gantt-vue3

[Other] Discover and share skills to supercharge Claude AI" Get Claude Skills is the first marketplace for Claude AI skills - modular packages that extend Claude's capabilities with specialized workflows and tools. Browse skills for: 🎨 AI image prompting (Midjourney, Flux, Stable Diffusion) 🛠️ Development & code workflows 📊 Productivity & automation 🎯 Domain-specific expertise and many more Download expert-crafted skills with one click. Share your own skills and earn revenue. Think of it as the "App Store" for Claude AI capabilities.

[Other] Show HN: Front End Fuzzy and Substring and Prefix Search Hey everyone, I have updated my fuzzy search library for the frontend. It now supports substring and prefix search, on top of fuzzy matching. It&#x27;s fast, accurate, multilingual and has zero dependencies.<p>GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;m31coding&#x2F;fuzzy-search" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;m31coding&#x2F;fuzzy-search</a> Live demo: <a href="https:&#x2F;&#x2F;www.m31coding.com&#x2F;fuzzy-search-demo.html" rel="nofollow">https:&#x2F;&#x2F;www.m31coding.com&#x2F;fuzzy-search-demo.html</a><p>I would love to hear your feedback and any suggestions you may have for improving the library.<p>Happy coding!

[Other] Show HN: HortusFox – FOSS system for houseplants with enterprise-scale features HortusFox is a free and open-source management, tracking and journaling system for indoor and outdoor plants. It&#x27;s 100% FOSS software under the MIT license, but still has grown to a scale that can be considered enterprise-scale.<p>That was possible because of the great community that evolved around this leafy project, that kept me motivated as well as supported me in a very kind and lovely way.<p>After a few months of no new version release, a few days ago I&#x27;ve published v5.3 of HortusFox, which provides some cool changes to help empower your plant parenting. You can see a very detailed changelog in the 5.3 release page on GitHub. Overall 25 issues have been resolved, where some of them were actually quite big.<p>If you&#x27;re new to HortusFox: the system offers you a large number of features to support your plant parenting (or gardening) journey with plant details, locations, photos, default and custom plant attributes, inventory system, tasks system, calendar, history (to keep a memory of your leafy friends), collaborative group chat and a few opt-in features such as weather forecast or plant identification (via photo). It also offers an extensive REST API, backup feature and themes (if you want your workspace a little more personal).<p>I have to say, for me it&#x27;s the perfect blend of two things: The passion for software development as well as the fondness for nature. I&#x27;m really grateful for that.<p>Thanks for reading and have a wonderful and leafy day.

[Other] Database backups, dump files and restic

[Database] SwirlDB: Modular-first, CRDT-based embedded database

[Other] Show HN: Butter – A Behavior Cache for LLMs Hi HN! I&#x27;m Erik. We built Butter, an LLM proxy that makes agent systems deterministic by caching and replaying responses, so automations behave consistently across runs.<p>- It’s a chat completions compatible endpoint, making it easy to drop into existing agents with a custom base_url<p>- The cache is template-aware, meaning lookups can treat dynamic content (names, addresses, etc.) as variables<p>You can see it in action in this demo where it memorizes tic-tac-toe games: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=PWbyeZwPjuY" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=PWbyeZwPjuY</a><p>Why we built this: before Butter, we were Pig.dev (YC W25), where we built computer-use agents to automate legacy Windows applications. The goal was to replace RPA. But in practice, these agents were slow, expensive, and unpredictable - a major downgrade from deterministic RPA, and unacceptable in the worlds of healthcare, lending, and government. We realized users don&#x27;t want to replace RPA with AI, they just want AI to handle the edge cases.<p>We set out to build a system for &quot;muscle memory&quot; for AI automations (general purpose, not just computer-use), where agent trajectories get baked into reusable code. You may recall our first iteration of this in May, a library called Muscle Mem: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=43988381">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=43988381</a><p>Today we&#x27;re relaunching it as a chat completions proxy. It emulates scripted automations by storing observed message histories in a tree structure, where each fork in the tree represents some conditional branch in the workflow&#x27;s &quot;code&quot;. We replay behaviors by walking the agent down the tree, falling back to AI to add new branches if the next step is not yet known.<p>The proxy is live and free to use while we work through making the template-aware engine more flexible and accurate. Please try it out and share how it went, where it breaks, and if it’s helpful.

[Other] Show HN: Tamagotchi P1 for FPGAs After being thrust headfirst into FPGA development thanks to the Analogue Pocket, my first from scratch creation was a gate level implementation of the original Tamagotchi toy.<p>The core, running on both the Analogue Pocket and MiSTer platforms, lets users re-experience the very first Tamagotchi from 1996 with accurate emulation, but modern features. The core has savestates (which is much harder to do in hardware vs software emulation), high turbo speeds (1,800x was the max clock speed I&#x27;ve reached so far), and more.<p>Learning more about hardware and FPGAs is something I&#x27;ve wanted to do for many years, and I highly recommend it for any programmer-brained person. It&#x27;s a very slightly different way of thinking that has vast consequences on how you look at simple problems.

[API/SDK] Show HN: OpenAI Apps Handbook I went swimming in the ocean of OpenAI&#x27;s Apps SDK… and came back with a handbook!<p>Over the past few weeks, I’ve been diving deep into the ChatGPT App SDK: exploring its APIs, tools, and hidden gems. Along the way, I built, broke, fixed, and reimagined a bunch of little experiments.<p>P.S: Indeed OAIs official docs is the source of truth, this is just a rough notebook<p>Maybe, I can create a CLI tool to scaffold app?

[Other] Show HN: Apache Fory Rust – 10-20x faster serialization than JSON/Protobuf Serialization framework with some interesting numbers: 10-20x faster on nested objects than json&#x2F;protobuf.<p><pre><code> Technical approach: compile-time codegen (no reflection), compact binary protocol with meta-packing, little-endian layout optimized for modern CPUs. Unique features that other fast serializers don&#x27;t have: - Cross-language without IDL files (Rust ↔ Python&#x2F;Java&#x2F;Go) - Trait object serialization (Box&lt;dyn Trait&gt;) - Automatic circular reference handling - Schema evolution without coordination Happy to discuss design trade-offs. Benchmarks: https:&#x2F;&#x2F;fory.apache.org&#x2F;docs&#x2F;benchmarks&#x2F;rust</code></pre>

[Package Manager] Show HN: CoordConversions NPM Module for Map Coordinate Conversions I have been working on a project that has multiple repos, all of which have to convert between multiple map coordinate types, so I made an NPM module that allows you to parse and convert between Decimal Degrees, Degrees-Minutes, and Degrees-Minutes-Seconds coordinate types. Niche? Yes. Useful? Also yes (I hope)!

[Other] Show HN: I made semantic search engine for engineering blogs and conferences