Show HN: Twitter Viewer – View & Download Tweets and Media Without an Account https://bit.ly/457dQsl

Show HN: Twitter Viewer – View & Download Tweets and Media Without an Account https://bit.ly/457dRfT August 6, 2025 at 04:57AM

Show HN: Virtual Ontologies with Claude Code https://bit.ly/4liFR55

Show HN: Virtual Ontologies with Claude Code https://bit.ly/3UgikGH August 6, 2025 at 02:20AM

Show HN: I built a browser extension to add comment threads on any website https://bit.ly/46OQUPT

Show HN: I built a browser extension to add comment threads on any website https://bit.ly/3J0n1Ch August 6, 2025 at 02:45AM

Show HN: Supanotice – Branded newspage and in-app widget to show product updates https://bit.ly/4fp0hYt

Show HN: Supanotice – Branded newspage and in-app widget to show product updates https://bit.ly/4olmxXk August 5, 2025 at 11:06PM

Show HN: Read the RFCs That Built the Internet https://bit.ly/4m13NLl

Show HN: Read the RFCs That Built the Internet Hi HN! I was using AI tools to research some of the RFCs people recommend you read and I thought why not build a tool that allows you to progressively do this and provides python examples, with dockerfiles to demonstrate some of the more complicated networking paradigms. It's not fully done yet, but I thought I'd show it off to get some feedback. https://bit.ly/453Jyqn https://bit.ly/4oqluFS August 5, 2025 at 03:49AM

Show HN: Using DSPy to enrich a dataset of the Nobel laureate network https://bit.ly/40OzoY5

Show HN: Using DSPy to enrich a dataset of the Nobel laureate network I've been working a fair bit with DSPy lately, and I did some work in combining the benefits of vector search and LLMs (via a DSPy pipeline) to disambiguate records with a high degree of accuracy to help enrich a dataset. The blog post shows how this approach scales well, is very cost-effective and super concise - all it takes is < 100 lines of DSPy code and it all runs async. The code to reproduce is in this repo if anyone's interested (all tools are 100% free and open source, and the methodology will work with open weight LLMs too). https://github.com/kuzudb/dspy-kuzu-demo https://blog.kuzudb.com/post/graph-data-enrichment-using-dspy/ August 5, 2025 at 02:09AM

Show HN: I built the fastest VIN decoder https://bit.ly/46I4TH0

Show HN: I built the fastest VIN decoder Decodes any VIN in ~20ms with zero network calls. I compressed the entire NHTSA vehicle database into a 21MB SQLite file that runs completely offline. No API keys, no rate limits, no servers. Just download once and decode forever. Works in browsers, Node.js, Cloudflare Workers - anywhere SQLite runs. Would love any feedback and to answer any questions about the implementation. https://bit.ly/3IYhnR3 August 5, 2025 at 12:42AM

Show HN: I've been building an ERP for manufacturing for the last 3 years https://bit.ly/3HjnnTQ

Show HN: I've been building an ERP for manufacturing for the last 3 years https://bit.ly/46I17gO August 4, 2025 at 11:24PM

Show HN: GPT helped me rebuild a .NET app in 30 mins what took 3 weeks in MFC https://bit.ly/46Gudx4

Show HN: GPT helped me rebuild a .NET app in 30 mins what took 3 weeks in MFC I've never used .NET, know nothing about .NET or vb, or anything outside vc++ & MFC. Recently I gave GPT a try, guiding it step by step, and asking it to help me rebuild a tool I originally wrote in MFC. To my surprise, it worked: a full Excel-to-PDF automation app, done in 30 minutes; including a small algorithm I thought would be too tricky for AI to handle. I didn't understand even a single line of the code, I just kept asking, copying, and running. It felt amazing… but also terrifying.If AI can do this now, what happens 5 years from now? Here's a 5-min video I made showing the full process with real code running (no cuts, just sped up): https://youtu.be/-mf_yOhOCfs Not selling anything. Just sharing what shocked me. August 4, 2025 at 03:10AM

Show HN: Schematra – Sinatra-inspired minimal web framework for Chicken Scheme https://bit.ly/4le3cVk

Show HN: Schematra – Sinatra-inspired minimal web framework for Chicken Scheme I started this project a couple of weeks ago because I was stuck on my side project and needed some motivation. For a very long time I wanted to get back to do something useful in lisp/scheme, did a quick research and settled on CHICKEN mostly because it's relatively well maintained, fast enough, it's extremely easy to build/install and very easy to write interop to pretty much any library. Most of the projects that I've written on the side have been using some combination of Sinatra + Sequel + Postgres/Redis/Something else + HTMX. I love the simplicity of Sinatra's API so I decided to focus on trying to have a similar experience but in scheme, trying to make it ergonomic for a scheme dev (that part might not be there yet since I'm not an experienced scheme dev). The most fun part was the dev cycle: Emacs + NREPL + Aider (as a code reviewer & rubber ducky. For codegen it's mostly annoying but works great for documentation & refactoring). I hope to add full SSE & WebSocket support some time this week. Anyway, hopefully this is interesting to some of you and might be a source of fun :) https://bit.ly/4m1RfU1 August 1, 2025 at 09:56PM

Show HN: QuantumFlow Toolkit – An open-source framework hybrid quantum workflows https://bit.ly/45il37s

Show HN: QuantumFlow Toolkit – An open-source framework hybrid quantum workflows Hey everyone, I'm excited to share a new project I've been working on: QuantumFlow Toolkit. This project is an open-source framework designed to help developers build and deploy hybrid quantum-classical applications. It's a bit like an orchestrator for your quantum and classical code, allowing you to seamlessly integrate tasks from different frameworks like PyTorch, Cirq, Qiskit, and PennyLane into a single workflow. https://bit.ly/3IRWtmH August 4, 2025 at 02:33AM

Show HN: Andre – A privacy-first, location-aware assistant that helps you https://bit.ly/3Jhueh9

Show HN: Andre – A privacy-first, location-aware assistant that helps you Hi HN, I've been working on a different kind of life assistant — one that helps in the real world, not just with voice commands or smart speakers. Andre is a privacy-focused, location-aware assistant that does things like: Remind you to take care of errands only when you're near a place to do them Alert you about major events like flight cancellations, gridlocked traffic, or wildfires — and suggest nearby hotels or rentals Adapt to your real routine, without tracking you or selling your data It's early-stage, but I'm sharing it now to get feedback, connect with others building human-first tech, and possibly find collaborators. The site at https://bit.ly/4l6J1sj is still under construction, but it's live. This project is dedicated to the person who gave me the courage to build again — even from a hospital bed. A small tribute, but a real one. Thanks for reading, Bill https://bit.ly/4l6J1sj August 4, 2025 at 12:06AM

Show HN: My Bytecode Optimizer Beats Copilot by 2X https://bit.ly/4foj9XN

Show HN: My Bytecode Optimizer Beats Copilot by 2X https://bit.ly/3J3bGRL July 31, 2025 at 06:15PM

Show HN: Structured Cooperation – A new way of building distributed apps & POC https://bit.ly/4l82MzO

Show HN: Structured Cooperation – A new way of building distributed apps & POC Hey HN, I wanted to share something I've been working on for the past couple of months, which may be interesting to developers interacting with distributed architectures (e.g., microservices). I'm a backend developer, and in my 9-5 job last year, we started building a distributed app - by that, I mean two or more services communicating via some sort of messaging system, like Kafka. This was my first foray into distributed systems. Having been exposed to structured concurrency by Nathan J. Smith's beautiful article on the subject ( https://bit.ly/3HgjXkQ... ), I started noticing the similarities between the challenges of this message-based communication, and that of concurrent programming, and GOTO-based programming before that - actions at a distance, non-trivial tracing of failures, synchronization issues, etc. I started suspecting that if the symptoms were similar, maybe the root cause, and therefore the solution, could be as well. This led me to design something I'm calling "structured cooperation", which is basically what you get when you apply the principles of structured concurrency to distributed systems. It's something like a "protocol", in the sense that it's basically a set of rules, and not tied to any particular language or framework. As it turns out, obeying those rules has some pretty powerful consequences, including: - Pretty much eliminates race conditions caused by eventual consistency - Allows you to recover something resembling distributed exceptions - stack traces and the equivalent of stack unwinding, but across service boundaries - Makes it much easier to reason about the system as a whole I put together three articles that explain: 1) what structured cooperation is ( https://bit.ly/3H7bUXA... ), 2) one way you could implement it ( https://bit.ly/4ol0osb... ), and 3) why it works ( https://bit.ly/44Z2BSD ). I also put together a heavily documented POC implementation in Kotlin, called Scoop (linked in the title). I guess you could call it an orchestration library, similar to e.g. Temporal ( https://bit.ly/40Qy0Ep ), although I want to stress that it's just a POC, and not meant for production use. I was hoping to bounce this idea off the community and see what people think. If it turns out to be a useful way of doing things, I'd try and drive the implementation of something similar in existing libraries (e.g. the aforementioned Temporal, Axon ( https://bit.ly/4laX4NE ), etc. - let me know if you know of others where this would make sense). As I mention in the articles, due to the heterogeneous nature of the technological landscape, I'm not sure it's a good idea to actually try to build a library, in the same way as it wouldn't make sense to do a "structured concurrency library", since there are many ways that "concurrency" is implemented. Rather, I tried to build something like a "reference implementation" that other people can use as a stepping stone to build their own implementations. Above and beyond that, I think that this has educational value as well, and I did my best to make everything as understandable as possible. Some things I think are interesting: - Implementation of distributed coroutines on top of Postgres - Has both reactive and blocking implementation, so can be used as a learning resource for people new to reactive - I documented various interesting issues that arise when you use Postgres as an MQ (see, in particular, https://bit.ly/40N53cv... and https://bit.ly/40N53cv... ) Let me know what you think. https://bit.ly/41k3qmz August 3, 2025 at 03:37PM

Show HN: Visualize your dev project with an AI roadmap tool https://bit.ly/3UaZCAo

Show HN: Visualize your dev project with an AI roadmap tool https://bit.ly/47a6Lsb August 3, 2025 at 12:11PM

Show HN: Voltpeek – A Vim inspired oscilloscope software https://bit.ly/41gC2Gc

Show HN: Voltpeek – A Vim inspired oscilloscope software This is software for my headless, PC based oscilloscope, which is controlled entirely via commands similar to the Vim text editor. I built this because I liked the idea of headless oscilloscopes; I always have my laptop around when I’m working on electronics anyway, and it’s very convenient to save images of captured waveforms. However, I found the software for off the shelf models to be annoying and cumbersome to work with. In my experience, this holds true both when opening the software and connecting to an attached oscilloscope, and when adjusting the scope settings using menus and buttons. I have also built my own oscilloscope hardware for use with Voltpeek. The specs are nothing to write home about (7.5MHz BW, 62.5MS/s), but they should be adequate for some basic debugging and measurement tasks. https://bit.ly/46EcDtJ August 3, 2025 at 01:29AM

Show HN: I made a mobile game you can only play on the toilet https://bit.ly/40NOLQv

Show HN: I made a mobile game you can only play on the toilet https://bit.ly/40Ji32L August 2, 2025 at 10:33AM

Show HN: A Toy Sound Generator https://bit.ly/4la5ogu

Show HN: A Toy Sound Generator https://bit.ly/4fgS6NU August 2, 2025 at 05:17AM

Show HN: Agentic AI Frameworks on AWS (LangGraph,Strands,CrewAI,Arize,Mem0) https://bit.ly/3U5KTGV

Show HN: Agentic AI Frameworks on AWS (LangGraph,Strands,CrewAI,Arize,Mem0) We’ve published a set of open-source reference implementations on how to build production-grade Agentic AI applications on AWS. What’s in the repo: • Agentic RAG, memory, and planning workflows with LangGraph & CrewAI • Strands-based flows with observability using OTEL & Arize • Evaluation with LLM-as-judge and cost/performance regressions • Built with Bedrock, S3, Step Functions, and more GitHub: https://bit.ly/3U9PzM0... Would love your thoughts — feedback, issues, and stars welcome! https://bit.ly/3HdtIQK August 2, 2025 at 01:20AM

Show HN: Windows XP in the browser, with file system, Word, media, flash https://bit.ly/456DcoI

Show HN: Windows XP in the browser, with file system, Word, media, flash https://bit.ly/4mo90wj August 2, 2025 at 02:11AM