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Show HN: AI-powered web service combining FastAPI, Pydantic-AI, and MCP servers https://ift.tt/nomxbIP

Show HN: AI-powered web service combining FastAPI, Pydantic-AI, and MCP servers Hey all! I recently gave a workshop talk at PyCon Greece 2025 about building production-ready agent systems. To check the workshop, I put together a demo repo: (I will add the slides too soon in my blog: https://ift.tt/tU2PMlc ) https://ift.tt/fHXDQ3G... The idea was to show how multiple AI agents can collaborate using FastAPI + Pydantic-AI, with protocols like MCP (Model Context Protocol) and A2A (Agent-to-Agent) for safe communication and orchestration. Features: - Multiple agents running in containers - MCP servers (Brave search, GitHub, filesystem, etc.) as tools - A2A communication between services - Minimal UI for experimentation for Tech Trend - repo analysis I built this repo because most agent frameworks look great in isolated demos, but fall apart when you try to glue agents together into a real application. My goal was to help people experiment with these patterns and move closer to real-world us...
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Show HN: Building an open-source agentic terminal https://ift.tt/x5KXmsI

Show HN: Building an open-source agentic terminal https://ift.tt/NC6WatF September 15, 2025 at 11:17PM
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Show HN: Demochain, a toy blockchain network that runs on the browser https://ift.tt/GMVWKLP

Show HN: Demochain, a toy blockchain network that runs on the browser A WebRTC based toy blockchain network, hopefully useful for learning and demonstrations. https://ift.tt/zdth4E0 September 15, 2025 at 07:34PM
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Show HN: Update: Open-source private home security camera(end-to-end encryption) https://ift.tt/v7Abe50

Show HN: Update: Open-source private home security camera(end-to-end encryption) Several months ago, I posted in Show HN ( https://ift.tt/DG3pe4f ) about this project (previously named Privastead, now changed to Secluso). It's a privacy-preserving home security camera that uses OpenMLS for end-to-end encryption between the camera and the mobile app. The post received a good amount of attention and there were many good comments. Since then, my project cofounder and I have made major improvements to the project. The project previously would act as a hub for an IP camera, which was otherwise closed source. But now, our camera software can also run directly on a Raspberry Pi (even one as weak as a Raspberry Pi Zero 2W), resulting in a security camera with a fully open source software stack. In addition, our Raspberry Pi-based camera can perform AI to detect people/pets/vehicles and send notifications. Moreover, our released camera binary can be verified using reproducible builds and ou...
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Show HN: From selling AI to QA teams to building a smooth test-management app https://ift.tt/VNalRUp

Show HN: From selling AI to QA teams to building a smooth test-management app Hey HN, Bootstrapped founder here. I've got a bit of a story for you. We started desplega.ai to build a sophisticated AI platform that could automate E2E testing. We spent the last few months talking to dozens of QA leaders, and trying to learn what are their actual challenges. We've got one consistent feedback from large teams: their daily reality is a living hell of slow, clunky tools. We're talking about teams at major companies still managing tests on spreadsheets. Or they're stuck in a Jira instance so customized and slow you can “make a full pot of coffee” while a page loads (and that’s why they acquired arc! t3.gg said it first). On top of that, they're paying 2k/mo+!? for these tools that feel like they were designed in ‘05. Soon, it became obvious that our AI tool was way too advanced for them, and why it was much easier for younger startups to start using us. But we didn't wa...
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Show HN: I made pgdbtemplate to cut PostgreSQL test time by 1.5x using templates https://ift.tt/W3RXZtz

Show HN: I made pgdbtemplate to cut PostgreSQL test time by 1.5x using templates Tired of your Go tests being slowed down by repetitive PostgreSQL database setup? I built pgdbtemplate to solve exactly that. It uses PostgreSQL's native template databases to create fully migrated test databases in milliseconds instead of seconds. The problem: Traditional test setup runs all your migrations for every single test. With a complex schema, this wastes minutes in every test run. The solution: Create one "golden" template database. Every test gets its own isolated copy instantly via CREATE DATABASE ... TEMPLATE. Benchmarks don't lie: - 1.5x faster for complex schemas (5+ tables) - 37% time saved creating 200 databases - 17% less memory usage - Performance gains increase with schema complexity It's: - Thread-safe and built for t.Parallel() - Driver-agnostic: works with both pgx and pq - Integrates with testcontainers-go - MIT Licensed I'd love feedback from the HN commu...
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Show HN: TNX API – Natural Language Interaction with Databases, Now Open Source https://ift.tt/9jO8kPw

Show HN: TNX API – Natural Language Interaction with Databases, Now Open Source Hi HN, time for another round, I’m Lasse. For years I’ve been frustrated by classical ERP systems being closed, rigid and expensive to change (or just not changeable at all xd). Last year I already posted my first attempt ("PORT", an OSS ERP), but due to better and better AI models, this approach already seemed outdated. So we iterared and today I’m sharing TNX API, an now open-source execution layer that lets AI read and write your business data, on your own server, with guardrails and logs. We went from "full ERP" to an execution layer ("your database + AI" as a power employee). Everything runs on your own dedicated server, to support also legacy systems. Every AI action is logged and permissioned, admins and users have different rights. We leaned into tasks people actually do: generate PDFs (invoices/offers), bulk edits, charts, uploads -> extract -> write back and mad...
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