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Show HN: Scrape (auto-discover APIs or HTML) & Monitor changes on any site

Show HN: Reimplementing PyTorch from scratch (MLP, CNN) to learn the internals

Show HN: Tenuo – Capability-Based Authorization (Macaroons for AI Agents)

Show HN: Real-world speedrun timer that auto-ticks via vision on smart glasses

Show HN: Research tool that turns one question into a branching discovery tree

Show HN: A one word check to detect misalignment in meetings

Show HN: Claude.md is doing too much

Show HN: Muninn – A universal local-first memory layer for AI agents

Show HN: OpenSymbolicAI – Agents with typed variables, not just context stuffing

Show HN: Latchkey – inject credentials into agents' curl calls

Show HN: SendRec – Open-source, EU-hosted alternative to Loom

Show HN: OpenSem – AI-native configuration system for Claude Code

Show HN: Hyperliquid Ruby SDK

Show HN: I built a baby Palantir to track everything from markets to planes

Show HN: Threds.dev – Git-style branching/merging for LLM research chats

Show HN: Product Hunt for Roblox

Show HN: OpsBrief – Stop wasting 30 minutes per incident gathering context

Show HN: Openground – open-source, on-device documentation indexing for agents

Show HN: A Claude Code session viewer that actually shows useful info

Show HN: Civie. Anonymous daily civic questions.