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[Other] Show HN: Verdent – AI coding agent that plans, tests, and ships Hi HN!<p>We just launched Verdent, an AI coding agent that actually plans before it codes, tests its own work, and delivers production-ready results without you having to clean up after it.<p>tl;dr Check out the website [1] and read the story [2]<p>- The problem: Current AI tools dump code and leave you to debug. You ask for &quot;build a login endpoint&quot; and get a passwordless JWT mess that doesn&#x27;t fit your project. We&#x27;ve talked to hundreds of engineers who are frustrated with having to micromanage AI output.<p>- What we built: Verdent works more like a senior engineer. It asks clarifying questions first, breaks down complex tasks, writes the code, then runs its own tests and fixes bugs until everything works. We call it the Plan → Code → Verify loop.<p>Two ways to use it: VS Code extension for staying close to the code, or Verdent Deck desktop app for handling bigger multi-component tasks in parallel.<p>- Background: I was Head of Algorithms at TikTok and spent 9 years as Chief Technical Architect at Baidu before this. Building those massive recommendation systems taught us that you need hundreds of specialized models working together, not just wrapping an LLM. We applied the same system engineering approach to AI coding.<p>- Try it: Available now, paid plans start at $19&#x2F;month. We&#x27;re a small team so no free tier, but we&#x27;d rather you experience what autonomous coding can actually do than get frustrated with a limited version.<p>- The bigger picture: We see AI coding as just the start of a larger shift where AI becomes the orchestrator across the entire software lifecycle, not just a typing assistant.<p>What do you think?<p>What tasks would you actually trust an AI agent to handle end-to-end?<p>[1] <a href="https:&#x2F;&#x2F;www.verdent.ai&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.verdent.ai&#x2F;</a> [2] <a href="https:&#x2F;&#x2F;thenewstack.io&#x2F;tiktoks-ex-algorithm-chief-launches-verdent-ai-coding-tool&#x2F;" rel="nofollow">https:&#x2F;&#x2F;thenewstack.io&#x2F;tiktoks-ex-algorithm-chief-launches-v...</a>

[Other] Amiga SPICE is a program for simulating electronic circuits

[Other] Python developers are embracing type hints

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

[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] Zoxide: A Better CD Command

[Other] X server implementation for SIXEL-featured terminals (2010-2014)

[Other] Fine-grained HTTP filtering for Claude Code

[Other] Pairing with Claude Code to rebuild my startup's website

[Other] Show HN: Zenode – an AI-powered electronic component search engine TL;DR - My cofounder Collin and I built an AI version of Digi-Key to help PCB designers find and use parts, except with a way bigger catalog, modern refinement tools, and an AI that can actually read the damn datasheets for you.<p>*The problem*<p>Modern circuit board design is filled with absurdly tedious tasks, where one small mistake can brick a project and cost thousands. The worst (in our opinion) is reading datasheets, which eats up to 25% of the first part of any project: 1. First, you slog through catalogs to find viable parts, using search tools that are still stuck in the dark ages. There are ~80M unique components in today’s supply chain, yet the tools we have to look through them are just digitized versions of the same paper catalogs our grandparents got in the mail.<p>2. During the design, you spend a ton of time flipping between different 10-100-page PDFs for every component in every subcircuit, hoping like hell you don’t miss some tiny spec in a footnote somewhere that kills your design.<p>3. And god help you when the requirements inevitably change and now you have to figure out what subsystems are affected!<p>*What we built*<p>Zenode is an AI-powered electronics search engine that actually helps engineers find and understand components. Our core features: 1. Largest and Deepest Part Catalog → We have merged dozens of existing part catalogs and documents from major distributors and manufacturers<p>2. Discovery Search → natural language queries to quickly find categories, set filters, and rank results<p>3. Modern Parametric Filters → rebuilt from scratch to move off the string values pervasive in industry and build numeric ranges that actually work.<p>4. Interactive Documents → AI constrained to a single part’s datasheet&#x2F;manuals. Ask a question, get the answer with a highlighted source for quick reference.<p>5. Deep Dive → search across dozens of parts simultaneously (“what’s the lowest-power accelerometer available?”) instead of slogging one by one.<p>*What we learned*<p>1. By far the hardest part of the last 2 years has been wrangling 3 TB of messy, inconsistent data into something usable. We had to teach the AI how to handle hand-drawn figures, normalize different unit variables and names that mean the same thing, and navigate conflicting information present between different datasheet versions of the same part. It’s been a nightmare<p>2. We originally built custom PDF parsers and AI extractors, which were best in class for ~3 months until generalized AI passed them. So we stopped reinventing wheels and doubled down on data quality instead.<p>3. The killer feature wasn’t the AI searching a single part, but what we heard repeatedly from users is that they want the AI to read across multiple parts, hence why we’ve launched deep dive!<p>*Where it’s strong*<p>- Speed: rips through a 1,000-page microcontroller datasheet in seconds.<p>- Breadth: 40M+ part sources unified into one catalog, and more than just datasheets, application notes, errata, etc.<p>- Comparisons: Deep Dive lets you ask across multiple parts, not just one at a time.<p>*Where it’s not*<p>- Pricing&#x2F;availability: currently outdated (for now we expect folks to check existing aggregators like Octopart).<p>- Accuracy: good enough to match my mediocre skills; not yet at Collin&#x27;s level, but we&#x27;re starting tuning and this will improve rapidly!<p>*Try it*<p>It’s live today (zenode.ai). Sign up for a free account and If you put “Hacker News” in during signup in the “where did you hear about us” field, we’ll give you 1,000 bonus credits (once we finish building that, so sometime this week ).<p>*Feedback we’d love*<p>1. Should Deep Dive results auto-become filters you can refine further?<p>2. Do you want the ability to mark preferred parts &#x2F; exclude others?<p>3. Is “Deep Dive on a BOM” (alt discovery + manufacturability checks on a list of known components from different categories) the killer feature?

[Other] Show HN: We built our own technology radar A technology radar helps you monitor and assess emerging trends systematically. Depending on the context a “trend” can be technical, business-related or social.<p>While such as a technology radar is traditionally reserved for big companies, we’ve found it’s just as valuable for us as a small startup, especially since AI is evolving rapidly (AI is one of our main technologies). The radar helps us track fringe-innovation (like the latest agentic framework form Github) and assess tech beyond the hype.<p>We built it with our platform (Researchly), but in the post I have also included an N8N workflow and data schema for a do-it-yourself version.<p>The front-end was inspired by: <a href="https:&#x2F;&#x2F;github.com&#x2F;zalando&#x2F;tech-radar" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;zalando&#x2F;tech-radar</a>

[Other] Show HN: Coding Agents swarming your codebase I built this because I was tired of creating pull requests in 20 repositories just to change a single line of workflow job version.<p>With Infra as AI, just mention the change. Agents work on all repos in parallel, read the docs, make a bunch of PRs and fill in the description.<p>You can see the demo of the actual dashboard in the landing.<p>Let me know your thoughts :) It means a lot to me!

[Other] Show HN: Software Freelancers Contract Template I started working as a freelancer [in Finland] a year ago and was surprised to learn that no decent contract template was available for direct assignments. There were some free contract templates available for intermediated assignments, but not for direct assignments. The &quot;golden standard&quot; of contract templates in Finland is an extremely heavy-handed and expensive template that costs ~500€ PER YEAR to use. Personally at the time I decided to just do a DIY contract for my first freelancing project.<p>Over time, as I got more engaged in the Finnish freelancing community, I realized that many people struggled with the same issue. After discussing this in our freelancing co-op Ohjelmistofriikit, we decided to invest both time and money into solving this problem. We decided right from the start that we were gonna open source everything and give it out for free.<p>We first developed a traditional document template in collaboration with a law firm. After that we developed a web generator that makes it easy to fill out the template. The user flow of the generator is designed to eliminate boilerplate-type work (such as hiding sections instead of showing &quot;skip this section if condition X does not apply to you&quot;) and also to reduce mistakes users might make when editing a traditional document template (such as copypasting something incorrectly).<p>Although the legalese is designed for the Finnish jurisdiction, the contract template can be useful as an example for similar work in other jurisdictions.<p>Go ahead and draft a contract right there in your browser!