Show HN: I built a platform for long-form media recs (books, articles, etc.) https://bit.ly/3KqMc1h

Show HN: I built a platform for long-form media recs (books, articles, etc.) Would love any feedback https://bit.ly/46aUTFy September 17, 2025 at 01:38AM

Show HN: Scientific Calculator for Android https://bit.ly/4nsqY1s

Show HN: Scientific Calculator for Android https://bit.ly/41RNPv6 September 17, 2025 at 12:46AM

Show HN: Open Line Protocol – a minimal wire for AI agents (MIT) https://bit.ly/3Vjkvdi

Show HN: Open Line Protocol – a minimal wire for AI agents (MIT) I built a tiny, typed wire for AI agents to exchange small graphs + telemetry instead of paragraphs. Ships: • Frozen v0.1 schema (backwards-compatible) • 5-number “shape” digest + holonomy gap (Δ_hol) • Guards to stop self-licking loops / silent deletions / order-debt spikes • Receipts: machine-verifiable JSON (schema-checked in CI) Repo: https://bit.ly/3K890mm Live hub: https://bit.ly/4nxvOu7 What feedback helps most: • Field naming in the wire • Guard thresholds • Which adapter you’d want first (WebSocket, store) MIT licensed. https://bit.ly/3K890mm September 16, 2025 at 03:01AM

Show HN: A tool to make a bootable USB installer out of macOS, or download it https://bit.ly/3Im6eJP

Show HN: A tool to make a bootable USB installer out of macOS, or download it I wanted to be able to get at Apple's content distribution network directly instead of guessing when stuff would be made available to me, and found it convenient to have a physical installer handy so I made this https://bit.ly/464tSUg September 16, 2025 at 01:47AM

Show HN: Labspace Directory – Biotech resource for lab space https://bit.ly/4n52gnX

Show HN: Labspace Directory – Biotech resource for lab space Hi HN, I’m Elijah with Labspace Directory ( https://bit.ly/3K2BUEA ), a new platform designed to help biotech companies find lab space. Our site brings together available lab space across the Bay Area, serving startups through established life science companies. The platform is built to streamline the search process—saving time by centralizing listings, providing key details on availability, and helping companies connect directly with opportunities that fit their needs. You can get started here: https://bit.ly/3K2BUEA We’re excited to share this with the broader Bay Area life science community and welcome any feedback as we continue to build and improve the platform. https://bit.ly/3K2BUEA September 15, 2025 at 11:52PM

Show HN: EpicPSA – Create PSA's for any message https://bit.ly/4n4r0Nj

Show HN: EpicPSA – Create PSA's for any message I created a SaaS that lets anyone create funny public service announcements for any situation or message. Chose from a predefined set of voices and there is an option to enhance your message using AI to make it sound better. Enjoy! https://bit.ly/3IntFCr September 15, 2025 at 02:19AM

Show HN: Worried about your pet? Health assessments with instant answers https://bit.ly/4mllkNI

Show HN: Worried about your pet? Health assessments with instant answers https://bit.ly/3ImRgmJ September 14, 2025 at 09:06PM

Show HN: PaperSync, making ArXiv papers collaborative https://bit.ly/4nvJiGL

Show HN: PaperSync, making ArXiv papers collaborative Demo: https://youtu.be/pnznDL9SZvI PaperSync was a project was made by two CS freshmen, Matthew Li (me!) and Michael Li, in 24 hours during HackCMU. At a high level, we built PaperSync to make reading research papers easier and more collaborative. Users can reference any part of the paper, ask anything they want, and have other users reply, all within the paper itself! If you are interested in our work, we would love to talk! Reach out to us at mqli@andrew.cmu.edu or mdli2@andrew.cmu.edu. https://bit.ly/4nAHhcK September 15, 2025 at 12:49AM

Show HN: GitHub repo with 180 tools for investing https://bit.ly/4nvhimO

Show HN: GitHub repo with 180 tools for investing https://bit.ly/4nuIv9e September 14, 2025 at 09:15AM

Show HN: UltraPlot. A Succinct Wrapper for Matplotlib https://bit.ly/4gm8pd3

Show HN: UltraPlot. A Succinct Wrapper for Matplotlib https://bit.ly/4gk2IMw September 10, 2025 at 08:14PM

Show HN: MemoryMe: An effort to beat Cognitive Decline https://bit.ly/4gpw2RN

Show HN: MemoryMe: An effort to beat Cognitive Decline Hi everyone! First time posting. I built this mini memory game in an attempt to beat lazy memory syndrome. because when was the last time you remembered what you did the day before purely based on memory (or without being prompted) ? Super simple fun game for giving our brains a quick workout and actually reminding it on how to remember. If you had those old Nokia phones from the early 90s, the game will seem insanely familiar to you https://bit.ly/47BT6KS September 13, 2025 at 08:35PM

Show HN: council - ai groupchat of ctos (no more asking ai to roleplay) https://bit.ly/4miYO7T

Show HN: council - ai groupchat of ctos (no more asking ai to roleplay) i made a council of advisors to help me code. as a self taught dev, ive been heavily reliant on ai for the past two years. found myself often prompting claude to take on different personalities, so i built a web app. it's great for the step before telling cursor what to do and reviewing prs once theyre ready. PLEASE DON"T NUKE MY APY KEY. ty https://bit.ly/4mlMvrD September 13, 2025 at 09:38PM

Show HN: YC Startup Map – A Map Visualization of the YC Startup Directory https://bit.ly/4617ivI

Show HN: YC Startup Map – A Map Visualization of the YC Startup Directory https://bit.ly/462Lvnl September 13, 2025 at 06:18AM

Show HN: Flo Is a Rust/Vulkan 3D Renderer for the Bevy Game Engine https://bit.ly/4meW37J

Show HN: Flo Is a Rust/Vulkan 3D Renderer for the Bevy Game Engine I’m using the excellent Bevy game engine for my colony sim/action game, but I do lots of real-time procedural generation/animation so the wgpu renderer is too slow. So I wrote my own Rust/Vulkan renderer and integrated it with Bevy. It’s ugly, buggy, and hard to use but multiple times faster. Full source code, with 9 benchmarks comparing performance with the default wgpu renderer: https://bit.ly/3Imcdya Video where I go over the examples and run them on the Steam Deck: https://www.youtube.com/watch?v=y1m30oOksmI https://bit.ly/3Imcdya September 13, 2025 at 02:33AM

Show HN: wcwidth-o1 – Find Unicode text cell width in no time for JavaScript/TS https://bit.ly/3KkXJ27

Show HN: wcwidth-o1 – Find Unicode text cell width in no time for JavaScript/TS I ported Markus Kuhn’s wcwidth to TypeScript and optimized it with bitset lookups for O(1) performance. It now covers the full Unicode 15.1 combining ranges. GitHub: https://bit.ly/3IkOJcJ NPM: https://bit.ly/4mczuAo Feedback welcome! https://bit.ly/3IkOJcJ September 13, 2025 at 03:53AM

Show HN: VibeDbg – Cconversational, LLM-Powered AI Assistant for WinDbg https://bit.ly/48kRFR8

Show HN: VibeDbg – Cconversational, LLM-Powered AI Assistant for WinDbg Transforms debugging with WinDbg into a conversational, LLM-assisted experience. Instead of memorizing cryptic commands, you can interact with the debugger using natural language: such as show me all the handles opened by this process, list enabled token privileges etc. It includes: A native WinDbg extension for command execution An AI-driven MCP server that bridges debugging tasks with powerful language models Integrated support for WinDbg features like breakpoints, memory views, and the dx visualization command Any improvement suggestions? https://bit.ly/3VNkKNK September 12, 2025 at 11:50PM

Show HN: Polaris Audit – Website Compliance Scanner with Fix Instructions https://bit.ly/4gkOrPR

Show HN: Polaris Audit – Website Compliance Scanner with Fix Instructions I built Polaris Audit to help small businesses fix website issues that were costing them customers. It scans your website for: - Security problems (HTTPS, SSL, headers) - GDPR compliance issues (cookies, privacy policy) - Accessibility problems (alt text, headings, keyboard navigation) The key difference: Instead of just telling you what's wrong, it gives you copy-paste code to fix it. Example: Missing page title Fix: Add to your Time: 2 minutes Tech: Django + React + PostgreSQL. Built because most compliance tools just point out problems without showing how to fix them. Try it: polarisaudit.com Currently free with detailed reports. Let me know if you want to try a paid account for free, and I'll help you set it up. What do you think? Would love feedback on the approach. September 12, 2025 at 02:19AM

Show HN: Specification-Driven Development for OpenAI Codex https://bit.ly/3VfR2kl

Show HN: Specification-Driven Development for OpenAI Codex https://bit.ly/4nMS9nZ September 12, 2025 at 01:07AM

Show HN: Newlang.app – Practice EN, ES, PT, FR, IT, DE https://bit.ly/4pgWYqP

Show HN: Newlang.app – Practice EN, ES, PT, FR, IT, DE Hi HN, I built newlang.app because I wanted a simple way to improve my spoken English. Most tools I found were either focused on grammar, full of distractions, or not free. So I created something minimal that I could use daily: Listen → Repeat → Read → Speak It started as a personal project, but since it worked for me, I decided to share it. Right now it supports English, Spanish, Portuguese, French, Italian, and German. A few notes: • It’s completely free. • I don’t collect user data. • The only thing required is a valid email to create an account. I’d really appreciate feedback from this community — especially on usability, language content, and how it could be improved for learners. Try it here: https://bit.ly/4mbTwLG https://bit.ly/46wsUQF September 11, 2025 at 02:02PM

Show HN: I built a minimal Forth-like stack interpreter library in C https://bit.ly/46xY8qE

Show HN: I built a minimal Forth-like stack interpreter library in C This weekend I created stacklib.h - a single-header library that brings Forth-style stack operations to C. It implements a basic interpreter with: - Stack operations (push/pop/dup/swap/over/drop) - Arithmetic (+, -, *, /) - Output (., emit, cr) - Stack inspection (.s, depth) Example usage: Stack s; stack_init(&s); dict_init(); exec(&s, "10 20 + ."); // Prints "30" exec(&s, "1 2 3 4 .s"); // Shows stack contents The library is self-contained, requires no dependencies, and handles basic error checking. It was inspired by wanting to understand how Forth works at a fundamental level while keeping the simplicity of C. I'm curious what other stack-based or concatenative programming enthusiasts think about this approach. Has anyone else built something similar? What features would you add to make it more useful? GitHub: https://bit.ly/3VKO1bQ September 11, 2025 at 01:15PM