Show HN: Contrapunk – Real-time counterpoint harmony from guitar input, in Rust https://ift.tt/7pscZTn

Show HN: Contrapunk – Real-time counterpoint harmony from guitar input, in Rust https://contrapunk.com/ April 5, 2026 at 06:10AM

Show HN: Dev Personality Test https://ift.tt/hz1sICM

Show HN: Dev Personality Test Was curious how a personality test would look for developers. So created this using FastAPI, HTMX, and AlpineJS. https://ift.tt/5UI1NTZ April 5, 2026 at 02:59AM

Show HN: M. C. Escher spiral in WebGL inspired by 3Blue1Brown https://ift.tt/RkUOQKs

Show HN: M. C. Escher spiral in WebGL inspired by 3Blue1Brown The latest 3Blue1Brown video [1] about the M. C. Escher print gallery effect inspired me to re-implement the effect as WebGL fragment shader on my own. [1]: https://www.youtube.com/watch?v=ldxFjLJ3rVY https://ift.tt/WJVrOIY April 5, 2026 at 01:13AM

Show HN: Running local OpenClaw together with remote agents in an open network https://ift.tt/HkfuCiD

Show HN: Running local OpenClaw together with remote agents in an open network Hi HN — I’m building an interoperability layer for AI agents that lets local and remote agents run inside the same network and coordinate with each other. Here is a demo: https://youtu.be/2_1U-Jr8wf4 • OpenClaw runs locally on-device • it connects to remote agents through Hybro Hub • both participate in the same workflow execution The goal is to make agent-to-agent coordination work across environments (local machines, cloud agents, MCP servers, etc). Right now most agent systems operate inside isolated runtimes. Hybro is an attempt to make them composable across boundaries. Curious what breaks first when people try running cross-environment agent workflows in practice. Project: https://hybro.ai Docs: https://docs.hybro.ai https://ift.tt/wdK0huA April 4, 2026 at 11:24PM

Show HN: Large scale hallucinated citation problem in published literature https://ift.tt/VZuWSwY

Show HN: Large scale hallucinated citation problem in published literature Hey, Nick Morley from Grounded AI here ( https://ift.tt/hUC8ery ) We collaborated with Nature to study the extent of fake/frankenstein citations in scholarly literature (from top 5 publishers - Springer, Elsevier, Wiley, Sage, Taylor & Francis) We're estimating hundreds of thousands of papers affected in 2025 with hallucinated citation issues As part of the work we analysed 20k papers generated with ChatGPT API to figure out which citation errors are characteristic of gen AI use and use that classify the errors we saw The world's gone mad, publishing is in a nuts state, the training data is poisoned! https://ift.tt/wa8VXE0 April 4, 2026 at 01:23AM

Show HN: Community Curated Lists https://ift.tt/yBLGW3q

Show HN: Community Curated Lists https://ift.tt/2ncNSFL April 4, 2026 at 12:02AM

Show HN: Matrix OS, like Lovable, but for personal apps https://ift.tt/ZdiEUGf

Show HN: Matrix OS, like Lovable, but for personal apps hey hn, i built matrix os, a personal ai operating system that generates custom software from natural language. you get your own cloud instance at matrix-os.com. you describe what you want ("build me an expense tracker with categories") and it appears on your desktop as a real app saved as a file. tech stack: node.js, typescript, claude agent sdk as the kernel, next.js frontend, hono gateway, sqlite/drizzle. everything is a file, apps, data, settings, ai memory. git-versioned. what makes it different from chatgpt/claude artifacts: - persistent memory that learns your preferences across sessions - apps are real files you own, not ephemeral chat outputs - runs 24/7 in the cloud, not just when you have a tab open - accessible from web, telegram, whatsapp, discord, slack - open source, self-hostable came out of placing top 20 at anthropic's claude code hackathon. been building it full-time since. 2,800+ tests, 100k+ lines of typescript live: matrix-os.com github: github.com/HamedMP/matrix-os would love feedback on the approach. the core bet is that ai should be an os, not a chat window. https://matrix-os.com/ April 3, 2026 at 10:29PM