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Show HN: I built a tool to sync localStorage between devices

Show HN: Go-CDC-chunkers – A fast and memory-efficient CDC library in Golang

Show HN: 1-click analytics for startups (https://arka.so)

Show HN: Nexus Protocol – An open-source OS for AI consciousness

Show HN: Tell the world why you unfollowed/muted a social media account

Show HN: McClane – Done-for-you lead drops from Facebook group conversations

Show HN: Voice AI Based Visa Interview Prep

Show HN: The Card Caddie, free tool to optimize credit card points

Show HN: Screwball.ai – MLB stat search in real-time with natural language

Show HN: I built the tool that converts any string to array

Show HN: I bulit Kanba, open source alternative to Trello, self-hostable PM tool

Show HN: ArguSeek – Agent‑first deep‑search API for hard‑to‑find dev answers

Show HN: Ruby on Rails tutorial running in the browser

Show HN: Flowrite – Why I built a songwriting app instead of paying subs

Show HN: Beyond Z²+C, Plot Any Fractal

Show HN: Sapient – AI Agent for Unreal Engine: Code, Blueprints, Game AI

Show HN: Pagy 2.0, a free drag-and-drop website builder

Show HN: OSS Semantic Git Commit Search – Ask questions about your Git history

Show HN: How Many Cigarettes You Smoked Being Exposed to Air Pollution

Show HN: Mochi Invaders – Like Space Invaders but for Practicing Japanese Kana