Show HN: A "Course" as an MCP Server https://ift.tt/jkpzhAw

Show HN: A "Course" as an MCP Server We wanted to build a course for new Mastra devs to get started quickly. However, we knew videos would go out of date and be more difficult to maintain. We decided to launch our "course" as an MCP server. This way your coding agent actually teaches the course content to you and can help you write the code. We think this is a really interactive way to learn. Using an editor with MCP support (such as Cursor, Windsurf, or VSCode), your code agent will call the appropriate MCP tools which will return context for the agent. This context tries to instruct the agent that it should be teaching you the content, not just doing the work for you. The course is still pretty experimental and some models work better than others. Code is available in the Mastra Github repo in the mcp-docs-server package ( https://ift.tt/ERN0lqn... ) https://ift.tt/zejI8n4 June 11, 2025 at 02:06AM

Show HN: MidWord – A Word-Guessing Game https://ift.tt/jTi9dBN

Show HN: MidWord – A Word-Guessing Game https://midword.com/ June 11, 2025 at 12:12AM

Show HN: MuJS Running on TempleOS https://ift.tt/qRvPXwk

Show HN: MuJS Running on TempleOS https://ift.tt/wQ0YStg June 10, 2025 at 05:59AM

Show HN: An open-source rhythm dungeon crawler in 16 x 9 pixels https://ift.tt/k2BwUE7

Show HN: An open-source rhythm dungeon crawler in 16 x 9 pixels I just released my latest Godot project, a rhythm-based dungeon crawler a la Crypt of the Necrodancer. The entire game plays out in 16 x 9 pixels because of a dare from my game dev group. I've open-sourced (MIT) the code and project files. Of course, the music files I don't own aren't included in the Github project, but I'm releasing the game's hand-crafted pixel sprites under CC0. The Github page also talks about some of the tricks you need to make the rhythm part of the game play nice with the dungeon crawling part. https://ift.tt/8nH57up June 6, 2025 at 03:50PM

Show HN: RenderDay: A GPU-only render farm for Blender https://ift.tt/FMWwCg6

Show HN: RenderDay: A GPU-only render farm for Blender Hey HN! I recently had to render my first longer Blender animation, and I found myself pretty frustrated with the existing render farms out there. Everything I tried was either buggy, overly complicated (I really don’t want to pick from a huge list of hardware options), or just *really* expensive. So, I did what anyone would do.. I built my own solution: https://renderday.com - a GPU-only render farm for Blender that’s super fast and dead simple to use. You just: 1. Upload your `.blend` file 2. Pick your settings 3. Get a price, pay, and render - done No subscriptions, no upfront costs, no contracts - just pay as you go. I pull in daily GPU prices from multiple providers (with a tiny margin to keep the lights on), so the pricing is transparent and competitive. Under the hood it's running on NVIDIA L40S GPUs (48GB RAM), with access to over 1,000 GPUs globally. Currently supports: * Blender 4.3 and 4.4 (can add more if needed) * Cycles and EEVEE * Real-time progress tracking with live preview frames * Full file encryption, auto-deletion after 30 days, no access/sharing --- But more importantly: I'd really appreciate your feedback. This started as a personal itch, but I want to build something genuinely useful for the Blender community - especially indie creators and small studios who can't afford big monthly plans or don't want to deal with complicated setup. - What do you wish render farms did better? - What features are missing for you right now? - Would you use something like this - and if not, why not? Would love to hear your thoughts - good or bad - so I can keep improving it. Thanks for reading! Sascha https://renderday.com June 10, 2025 at 02:24AM

Show HN: I made a mobile app that turns your step count into a race https://ift.tt/Q7ORJhm

Show HN: I made a mobile app that turns your step count into a race I just launched my first-ever mobile app. It’s called STEPRACERS, a game where you compete with friends by tracking your steps. The idea came from someone close to me who completely changed their life by focusing on their health. Every night, they’d send me their step count - a small, daily ritual that became a powerful reminder of progress. So I turned it into a game. It’s fun. It’s simple. And it might just push you to hit your 10k steps a day. https://ift.tt/eA31jvC June 10, 2025 at 02:28AM

Show HN: Hexplain – Making medical papers accessible with AI https://ift.tt/ON46nhQ

Show HN: Hexplain – Making medical papers accessible with AI https://hexplain.ai/ June 9, 2025 at 02:40AM

Show HN: CurveFit Pro – Advanced nonlinear curve fitting in the browser https://ift.tt/kRIxuKe

Show HN: CurveFit Pro – Advanced nonlinear curve fitting in the browser We are pleased to announce a new version of our curve fitting web app with a whole new backend, front end, and all of the bells and whistles. If you see anything left out, or that could be improved, please let us know!! We'd love to hear any feedback from this amazing community. https://ift.tt/Jig0YD6 June 8, 2025 at 09:01PM

Show HN: Small tool to query XML data using XPath https://ift.tt/31KZFLx

Show HN: Small tool to query XML data using XPath https://ift.tt/6s0XJWy June 8, 2025 at 02:23AM

Show HN: AI that extracts brand identity from websites to generate ads https://ift.tt/Tm6LerB

Show HN: AI that extracts brand identity from websites to generate ads I built this because I kept procrastinating on creating ads for my projects. The technical challenge was interesting: how do you teach AI to extract "brand identity" from a website? Turns out websites are messy. Finding the actual logo vs random images, identifying brand colors vs generic link colors, understanding brand voice from homepage copy. The solution: Custom vision models + CSS parsing + GPT-4 for voice analysis. You paste a URL, it extracts brand elements, generates platform-specific ads. Not trying to "disrupt advertising" or anything dramatic. Just solving the specific problem of "I need a Facebook ad but Canva makes me want to cry." Built with Next.js, custom image processing pipeline, OpenAI API. The brand extraction accuracy is around 85% for well-structured sites, lower for sites that are... creative with their CSS. Happy to discuss the technical approach or share code snippets if anyone's curious about the brand extraction pipeline. https://board.ad https://www.board.ad June 8, 2025 at 10:45AM

Show HN: A free, fast, and modern vehicle diagnostics tool https://ift.tt/84TOiRA

Show HN: A free, fast, and modern vehicle diagnostics tool https://ift.tt/udDMmpr June 7, 2025 at 11:57PM

Show HN: Solomon's Agent - a CLI to simplify the web https://ift.tt/dHfP9ZI

Show HN: Solomon's Agent - a CLI to simplify the web https://ift.tt/3RnqKX1 June 6, 2025 at 10:54PM

Show HN: AI game animation sprite generator https://ift.tt/WQYnhAE

Show HN: AI game animation sprite generator I tried to build AI game animation generator last year ( https://ift.tt/VCIAUnG ), a lot of people were interested, but it failed, mainly because the technology was not good enough. 1 year passed, there were a lot of developments in video/image generation. I tried it again, I think it works super well now. Actually beyond my expectation. You can generate all kinds of game character animation sprites with only 1 image. 1, upload your image of your character 2, choose the action you want 3, generate! Support basic actions like Run, Jump, Punch and complicated ones like: Shoryuken, Spinning kick, etc. High quality sprite sheet will be directly generated to use in Unity and any game engine. If you are an indie game developer, you don't need to high an artist or animator to develop you game. For studios, it's 10x cost saving and 10x efficiency as no more creating animations for 100 NPCs 100 times. Please check it out, looking forward to your feedback! https://ift.tt/P5VeI38 June 7, 2025 at 01:00AM

Show HN: Lightweight Durable Workflows Built on Postgres https://ift.tt/yzbElje

Show HN: Lightweight Durable Workflows Built on Postgres Hi HN! This is Qian here with Peter (KraftyOne) and Jeremy (jedberg). We’re building DBOS, an open-source, lightweight durable workflows library that you can add to Python apps in just a few lines of code. It’s comparable to popular open-source workflow and queue libraries like Airflow and Celery, but more lightweight with a greater focus on reliability and automatically recovering from failures. Our goal in building DBOS is to make workflows lightweight and flexible so you can add them to your existing apps with minimal work. Everything you need to run durable workflows and queues is contained in this Python library. You don’t need to manage a separate workflow server: just install the library, connect it to a Postgres database (to store workflow/queue state) and you’re good to go. DBOS workflows make your program durable by checkpointing its state in Postgres. If your program ever fails, when it restarts all your workflows will automatically resume from the last completed step. You add durable workflows to your existing program by annotating ordinary functions as workflows and steps: from dbos import DBOS @DBOS.step() def step_one(): ... @DBOS.step() def step_two(): ... @DBOS.workflow() def workflow(): step_one() step_two() The workflow is just an ordinary Python function. You can call it any way you like–from a FastAPI handler, in response to events, wherever you’d normally call a function. We’ve just released DBOS Python 1.0. This enhances workflows with many powerful features we’ve been building over the last few months, including: - Durable queues. Postgres-backed queues with all the queuing features of BullMQ/Celery (concurrency limits, rate limits, timeouts, priority, deduplication, etc.). Plus, they integrate with durable workflows, so you can write a workflow that enqueues 1K tasks, waits for and processes their results, and automatically recovers from any interruption. - Programmatic workflow management. Your workflows are stored as rows in a Postgres table, so you have full programmatic control over them. Write scripts to query workflow executions, batch pause or resume workflows, or even restart failed workflows from a specific step. This makes it much easier to diagnose and recover from bugs and failures that affect thousands of workflows. - Full support for both sync and async Python–write your workflows and steps as code either synchronously or asynchronously, it all works out of the box. - Improved tooling, including dashboards, workflow graph visualization, workflow management via web UI, and more. We’d love to hear your feedback and hope you can try DBOS out! https://ift.tt/KHtu8Uj June 6, 2025 at 10:39PM

Show HN: MCP-Cloud – One-click hosting for MCP servers (50 templates) https://ift.tt/SotdEBx

Show HN: MCP-Cloud – One-click hosting for MCP servers (50 templates) https://mcp-cloud.ai/ June 6, 2025 at 01:47AM

Show HN: Create LLM graders and run evals in JavaScript with one file https://ift.tt/0knyjTt

Show HN: Create LLM graders and run evals in JavaScript with one file Hi HN! Run it: OPENROUTER_API_KEY="sk" npx bff-eval --demo We built a tool to help people take LLM outputs and easily grade them / eval them to know how good an assistant response is. We've built a number of LLM apps, and while we could ship decent tech demos, we were disappointed with how they'd perform over time. We worked with a few companies who had the same problem, and found out scientifically building prompts and evals is far from a solved problem... writing these things feels more like directing a play than coding. Inspired by Anthropic's constitutional ai concepts, and amazing software like DSPy, we're setting out to make fine tuning prompts, not models, the default approach to improving quality using actual metrics and structured debugging techniques. Our approach is pretty simple: you feed it a JSONL file with inputs and outputs, pick the models you want to test against (via OpenRouter), and then use an LLM-as-grader file in JS that figures out how well your outputs match the original queries. If you're starting from scratch, we've found TDD is a great approach to prompt creation... start by asking an LLM to generate synthetic data, then you be the first judge creating scores, then create a grader and continue to refine it till its scores match your ground truth scores. If you’re building LLM apps and care about reliability, I hope this will be useful! Would love any feedback. The team and I are lurking here all day and happy to chat. Or hit me up directly on Whatsapp: +1 (646) 670-1291 We have a lot bigger plans long-term, but we wanted to start with this simple (and hopefully useful!) tool. Run it: OPENROUTER_API_KEY="sk" npx bff-eval --demo https://ift.tt/QDwMlVI June 5, 2025 at 09:50PM

Show HN: Magix – Chrome extension to add any feature to any website https://ift.tt/pAgtoj9

Show HN: Magix – Chrome extension to add any feature to any website Hey guys! I'm Kishan, I built this chrome extension that lets you add any feature to any website I asked it to do these: a text transcription button(which used deepgram) to lovable using this extension. an auto scrolled for every 5 sec in medium. dark mode to stripe dashboard. Yea did quite a lot. But i wanna know how it works for others and if its truly useful by any chance. So guys feel free to use it. My last show hn post was a flop so decided to try it again after returning from bathroom, so yeah Thx :) and if u run out of credits just let me know, i'll get u sorted -> https://ift.tt/saML08t https://trymagix.com/ June 5, 2025 at 01:24AM

Show HN: Smart Palette – Reimagining AI Art https://ift.tt/HPtOhFQ

Show HN: Smart Palette – Reimagining AI Art Hi HN, I'm Nick. Over the last 6 months I’ve been building Smart Palette – a platform to help anyone create unique, wall-ready art without needing to be a prompt expert. I started this because I wanted to unleash creativity in anyone and help them bring their art ideas onto their wall through a simple, guided and inspiring process. Instead of figuring out the “right” words to use, you just select your interior design style, room, art style, theme, and color palette. You can simply describe what you want to see and add your desired colors — or let Smart Palette handle it for you. Smart Palette uses a streamlined UI that my backend then translates into optimized, detailed prompts. A lot of the work went into this "translation" layer to ensure optimal model selection, settings and generation techniques depending on the user’s creative context. It also has a full print-on-demand (UHD) integration including various cusotmization options and an art preview feature. This is an early version, and I'd be very grateful for any feedback you have on the concept, the UX, or any technical aspects. Happy to answer any questions! You can try it out with a free trial and generate your first artwork. Here’s a quick walkthrough: https://ift.tt/k1xzdOK?... https://ift.tt/kG1A2jo June 5, 2025 at 12:58AM

Show HN: Cloudflare Workers Compatible MCP Boilerplate with OAuth & PostgreSQL https://ift.tt/3wp5y7i

Show HN: Cloudflare Workers Compatible MCP Boilerplate with OAuth & PostgreSQL https://ift.tt/MgfTRd8 June 5, 2025 at 12:26AM

Show HN: I'm Building Ahrefs for AI Search Results https://ift.tt/nwHq6SK

Show HN: I'm Building Ahrefs for AI Search Results AI search results are quickly becoming more important than SEO, but as businesses, we have no visibility over it! That's why I'm building "Ahrefs for AI search results". Track keyword performance on AI tools like ChatGPT, Claude, Perplexity & more https://linrush.com/ June 3, 2025 at 11:55PM