Show HN: StartupList EU – A public directory of European startups https://ift.tt/BEr45xC

Show HN: StartupList EU – A public directory of European startups I’m from Europe, and when I spent a summer at Stanford, I saw how different the startup ecosystem is in the US. Everything there feels connected. In Europe, it’s scattered. Hard to discover early-stage startups unless you’re in the right city or network. So I built StartupList EU, a public directory where anyone can list or browse European startups. The goals is to contribute to the EU startup ecosystem more accessible and transparent for founders, investors and operators. What it does: - Founders can submit their startup for free - Each profile includes data like team size, category, funding, revenues, location, founders and more - You can search by country, industry, name, team size, country and business model - It works across the whole EU, not just big hubs like Berlin or Paris Right now there are 34 startups listed. More are coming in daily. I’m working on better filters, API access, and a weekly newsletter. Would love your feedback: - What data would be most useful to you? - What would make this genuinely helpful for founders, investors, or researchers? - If you are from US, what's your take about EU startup ecosystem? https://ift.tt/JeYyic3 July 15, 2025 at 01:54AM

Show HN: Assholes who care. Vetting gofundme campaigns in Uganda Africa https://ift.tt/iWznNDG

Show HN: Assholes who care. Vetting gofundme campaigns in Uganda Africa https://ift.tt/mgWPfMb July 14, 2025 at 11:31PM

Show HN: Clu3 – Team up with GPTs in a 2v2 game of codenames https://ift.tt/LCM5wk3

Show HN: Clu3 – Team up with GPTs in a 2v2 game of codenames We wanted to know how well LLMs can predict what you think and put them to the test in a game of codenmaes! Grab a friend and play in two teams, each consisting of one human and one LLM. Do you think LLMs can grok your clues? https://ift.tt/umajY3E July 13, 2025 at 08:31PM

Show HN: I made a JSFiddle-style playground to test and share prompts fast https://ift.tt/WDCSuMG

Show HN: I made a JSFiddle-style playground to test and share prompts fast I built this out of frustration as I lead the development of AI features at Yola.com. Prompt testing should be simple and straightforward. All I wanted was a simple way to test prompts with variables and jinja2 templates across different models, ideally somthing I could open during a call, run few tests, and share results with my team. But every tool I tried hit me with a clunky UI, required login and API keys, or forced a lengthy setup process. And that's not all. Then came the pricing. The last quote I got for one of the tools on the market was $6,000/year for a team of 16 people in a use-it-or-loose-it way. For a tool we use maybe 2–3 times per sprint. That’s just ridiculous! IMO, it should be something more like JSFiddle. A simple prompt playground that does not require you to signup, does not require API keys, and let's experiment instantly, i.e. you just enter a browser URL and start working. Like JSFiddle has. And mainly, something that costs me nothing if I'm or my team is not using it. Eventually I gave up looking for solution and decided to build it by myself. Here it is: https://langfa.st Help me find what's wrong or missing or does not work from you perspctive. P.S. I did not put any limits or restrictions yet, so test it wisely. Don't make me broke, please. https://langfa.st/ July 12, 2025 at 11:11PM

Show HN: I Built a Stick-On Wireless Lamp That Installs in 30 Seconds https://ift.tt/TFrNXyi

Show HN: I Built a Stick-On Wireless Lamp That Installs in 30 Seconds Hi HN! I recently built a simple, rechargeable wall lamp that doesn't require any tools, wires, or drilling. It sticks to surfaces using adhesive pads, rotates 360°, and charges via USB-C. The goal was to make lighting *super minimal, renter-friendly, and easy to install*. The idea came from personal frustration — I live in a rented apartment where I can’t drill holes, and I wanted a modern-looking light I could reposition easily. I know this isn’t a software product, but I figured some of you might appreciate the problem-solving side of it — designing minimal hardware that’s useful, elegant, and simple. Would love feedback on the product or the landing page: Happy to answer any questions about the design, battery, lighting specs, remote control logic, etc. Thanks! https://ift.tt/IvsNtCJ July 13, 2025 at 01:56AM

Show HN: An educational Local Qwen3 LLM Inference project written in Rust https://ift.tt/vXClfQe

Show HN: An educational Local Qwen3 LLM Inference project written in Rust https://ift.tt/hDdEPwv July 13, 2025 at 12:14AM

Show HN: I automated code security to help vibe coders from getting busted https://ift.tt/wm9L5U1

Show HN: I automated code security to help vibe coders from getting busted Hi HN! I’m the developer of Elara, a tool that automatically scans your code for security issues like misconfigurations, secrets, and risky packages, so you can focus on building without stressing about all this stuff. It’s designed to be simple and fast. I see so many people launching products online without even knowing what security risks they might have. If you’re a developer or into tech, you know how hard it is to keep systems safe. Yet shockingly it feels like nobody really cares. I want to help folks catch these issues early, before they get burned. Elara runs multiple security scanners simultaneously, aggregates the results into a single interface, and gives you an actionable to-do list to fix the problems. It’s super simple to try, just log in with GitHub and see for yourself. Would really appreciate your feedback! https://ift.tt/n8OVE5w July 12, 2025 at 09:50PM

Show HN: I built a toy music controller for my 5yo with a coding agent https://ift.tt/K8JSlkn

Show HN: I built a toy music controller for my 5yo with a coding agent The HN community may find the context of the prompts, organized by each turn in each session, the most useful. See the website/docs/prompts.md and session-X.md files. I also started exploring some workflows for the LLM to execute, organized in the website/docs/tasks/ folder. I found it pretty handy to have the LLM document our work as we went and simply embedded the static site into the executable, along with all the music and logic. The whole project took me about a day for the backend. The C++ controller itself took only a few turns. I enjoyed focusing on my son's experience and letting the agent handle the C++, Javascript, and Go code. I'm still getting started with coding agents, so please do share any tips or tricks to help me with similar projects. I'm most interested in how to work effectively with the agent, like what you see in dev-loop.sh https://ift.tt/xPtZdYQ July 8, 2025 at 08:02PM

Show HN: VibeKin – Gated Discord Tribes via Personality Matching https://ift.tt/UG2c1Sk

Show HN: VibeKin – Gated Discord Tribes via Personality Matching I built an app that matches users to exclusive Discord communities based on a 25-question personality quiz. Inspired by HEXACO but with a novel fuzzy-clustering twist, it creates a "harmony genome" to gate access, ensuring tight-knit tribes (e.g., wellness or creative niches). Think Reddit but curated via psych. Launched to test the idea—feedback on algo, niches, or scaling? https://tgc.fly.dev July 12, 2025 at 07:32AM

Show HN: Transition – AI Triathlon Coach https://ift.tt/aJn1rZ6

Show HN: Transition – AI Triathlon Coach Hey HN, I’m Alex, a triathlete, dad, and software engineer. I’ve been building Transition — an app for triathletes that creates adaptive training plans based on your goals, schedule, and workout data (Garmin, Strava, etc). Most plans are static, which never really worked for me as a parent and someone with an unpredictable schedule. Transition adjusts every week using your actual workouts and progress, so the plan changes when you miss a session, set a new PR, or need to shift your priorities. I built this because nothing else was flexible enough for my life, and I’m curious if others have the same problem. It’s in beta and free to try. I’d love feedback from the HN crowd — especially around the training logic, onboarding, or any ways to make it more useful for real athletes. Website: https://ift.tt/r1EgFfp https://ift.tt/r1EgFfp July 12, 2025 at 08:09AM

Show HN: An Improvisational Web Server https://ift.tt/xq3rCym

Show HN: An Improvisational Web Server With Gemini Flash so fast, I wondered what it would be like for an LLM to generate web pages and images on-demand as the URLs are requested. It's been a couple of weeks now since release and there are a ton of cool examples people have created at https://ginprov.com/ . I have about half of my Gemini credits left (it's not too costly) but if it runs out, it's very easy to self-host with your own Gemini key. Some examples: https://ift.tt/IoMDzF7 https://ift.tt/OdzCGFc https://ift.tt/612UygJ https://ift.tt/IcC1rFi https://ift.tt/MJqVGpj July 11, 2025 at 10:22PM

Show HN: Open source alternative to Perplexity Comet https://ift.tt/12EUG5V

Show HN: Open source alternative to Perplexity Comet Hey HN, we're a YC startup building an open-source, privacy-first alternative to Perplexity Comet. No invite system unlike bunch of others – you can download it today from our website or GitHub: https://ift.tt/hOxTZWy --- Why bother building an alternative? We believe browsers will become the new operating systems, where we offload much bunch of our work to AI agents. But these agents will have access to all your sensitive data – emails, docs, on top of your browser history. Open-source, privacy-first alternatives need to exist. We're not a search or ad company, so no weird incentives. Your data stays on your machine. You can use local LLMs with Ollama . We also support BYOK (bring your own keys), so no $200/month plans. Another big difference vs Perplexity Comet: our agent runs locally in your browser (not on their server). You can actually watch it click around and do stuff, which is pretty cool! Short demo here: https://bit.ly/browserOS-demo --- How we built? We patch Chromium's C++ source code with our changes, so we have the same security as Google Chrome. We also have an auto-updater for security patches and regular updates. Working with Chromium's 15M lines of C++ has been another fun adventure that I'm writing a blog post on. Cursor/VSCode breaks at this scale, so we're back to using grep to find stuff and make changes. Claude code works surprisingly well too. Building the binary takes ~3 hours on our M4 Max MacBook. --- Next? We're just 2 people with a lot of work ahead (Firefox started with 3 hackers, history rhymes!). But we strongly believe that a privacy-first browser with local LLM support is more important than ever – since agents will have access to so much sensitive data. Looking forward to any and all comments! https://ift.tt/peI5wWi July 10, 2025 at 11:03PM

Show HN: Activiews – A privacy-first fitness alternative for Apple users https://ift.tt/KHQbF0V

Show HN: Activiews – A privacy-first fitness alternative for Apple users Hi HN, I built Activiews as a fitness alternative for Apple users who want a simpler, more private, and more visual way to view their workouts, with a heavy focus on maps. The app reads from Apple Health and Watch data without requiring an account or sending anything to the cloud. I built it because I wanted a fitness app that: - Has no social network features - Does not store my data on their servers - Doesn't require an account or login - Stays lightweight and free of bloat - Is simple to use, with a focus on customizable workout visuals Core features: - Customizable workout maps and shareable cards - Flyover route animations - Calendar heatmap showing activity over time - Offline-first, data stays on device, no login/account needed - Dark/light themes, map styles, unit system, and accent color customizations - Reads data directly from Apple Watch - Localized in 13 languages - €0.99/month or €24.99 lifetime It’s built in Swift & SwiftUI using native APIs and focused on performance and privacy. I’d love your feedback, ideas, and comments. App Store: https://ift.tt/Do3kCap Website: https://activiews.xyz Thanks! http://activiews.xyz/ July 11, 2025 at 12:28AM

Show HN: MCP server for searching and downloading documents from Anna's Archive https://ift.tt/sirqbc0

Show HN: MCP server for searching and downloading documents from Anna's Archive I was looking around for an MCP server that could connect Anna's Archive to Claude Desktop, as I wanted to be able to search and download books directly through the interface. I couldn't find any public implementations, so ended up building one myself. What it does? - It searches Anna's Archive by keywords. - It downloads books from search results. - It works directly in Claude Desktop through MCP. Check out the repository's README for detailed installation and configuration instructions. The code is fully open source and builds run on GitHub Actions for transparency. I figured I'd share, since I couldn't be the only one wanting this functionality! https://ift.tt/KUpMNj0 July 10, 2025 at 02:36AM

Show HN: RecomPal – A no-code AI chatbot to increase Shopify sales https://ift.tt/l19ejJc

Show HN: RecomPal – A no-code AI chatbot to increase Shopify sales Hi HN! We’ve built RecomPal, a no-code AI chatbot designed specifically for Shopify stores. It helps merchants increase conversion rates and average order value by assisting shoppers in real-time—just like a human sales rep. Key features: Plug & play installation (2 minutes) Understands customer intent and recommends products No scripting or flow-building required Privacy-first: no data sharing with third parties We’ve seen up to 30% sales increase in early tests with small-to-medium stores. We’d love your feedback, feature suggestions, or ideas on how we can improve. Try it out: https://recompal.com Thanks! – Team RecomPal https://recompal.com July 9, 2025 at 10:41PM

Show HN: Stravu – Editable, multi-player AI notebooks with text, tables, diagram https://ift.tt/WKxIF8n

Show HN: Stravu – Editable, multi-player AI notebooks with text, tables, diagram Hi HN! I'm Karl one of the co-founders of Stravu. ( https://stravu.com ) Using AI for work 24x7, we realized that four things would make AI more useful for us and a lot of other power users and teams: Editable output: AI gives output that is half right and our only option was to either keep chatting laboriously or copy it to a Google Doc. We made Stravu so you can edit what the AI says in chat or in an attached notebook. Everything editable. Approve AI changes: When AI makes a change to some text, you can't tell what changes. We put Red/Green diffs that you can approve into Stravu. Unify text, tables, diagrams: We were jumping between tools to work with AI on text, tables, diagrams, etc.. Just because Microsoft did that 30 years ago, doesn't mean it makes sense now. We made Stravu so you can work with AI across text, tables, diagrams, (and 2x2s, formulas, more soon) and have them inform each other. Actual multi-player team collab with AI: We couldn't collaborate as a team in AI (even with the ChatGPT Teams plan). We wanted to be able to chat with AI together as a team or see the changes AI was making in the canvas/notebook together and edit together. So we made Stravu support multi-player collaboration in every aspect... chats, notebooks, text, tables, diagrams..etc. Some of the use cases of our current Beta customers include: scrum teams doing feature/customer/competitive research and feature definition, account teams building vertical/geo/account plans, consultants and investment teams working on market/company analysis. We are currently in beta and actively iterating based on user feedback. Please try it out at: https://stravu.com We highly value your feedback! July 9, 2025 at 07:47PM

Show HN: I rewrote an outdated React Native map clustering library https://ift.tt/oc5MqLD

Show HN: A Truth Table Generator Written in Common Lisp https://ift.tt/cBVymig

Show HN: A Truth Table Generator Written in Common Lisp https://ift.tt/7qPsgkf July 9, 2025 at 09:22AM

Show HN: Track the AI-generated code in your repo https://ift.tt/4CAvLW1

Show HN: Track the AI-generated code in your repo https://ift.tt/8pCZbeG July 8, 2025 at 10:37PM

Show HN: OpenAPI mocks that don't suck – realistic test data, quick setup https://ift.tt/SmVCGPZ

Show HN: OpenAPI mocks that don't suck – realistic test data, quick setup Hi HN! I'm Ankit, the founder of Beeceptor, a request mocking and intercepting tool. This time, I built something new to address a pain I’ve personally felt (and heard from dozens of QA, frontend, and platform teams): making OpenAPI specs actually useful during development. API contracts just sit around as docs often. What if you could 'activate' them, instantly have a realistic, hosted mock server-with contract validation, smart test data, and early usage? So I made _Mockaroo for OpenAPI_, but with brains. It spins up a hosted mock server from your spec in one click. It: - Generates sensible context-aware, test data using FakerJS (e.g., age returns realistic numbers, not 10000) - Validates incoming requests against your contract definition and returns detailed, actionable error messages. - Supports JSON, binary, CRUD style API responses. - Gives a HOSTed API server URL, that's ready in a few seconds. - Helps frontend teams start testing before the backend is ready - Gives QAs a place to play, verify and run performance tests. - Enables the best developer experience, requiring no account setup and a working mock API server for experiments, and API cost savings. No local setup, no writing custom mock rules, no fuss. Just activate your OpenAPI spec, and your API starts “working” in seconds. Besides, Beeceptor shows live request logs, where responses can be overridden. Quick demo: https://www.youtube.com/watch?v=2vUD_B3aw5I --- Would love your thoughts, feedback, or use cases I haven’t thought of yet. Happy to share more technical details if there's interest. Thanks for reading! https://ift.tt/QxlqYdj July 9, 2025 at 01:00AM