Hi Product Hunt! 👋 I'm the maker of Amida-san, and I'm excited to share it with you today! ## 🎯 The Problem Ever tried to do a fair lottery or team assignment in a Zoom call? Traditional random generators feel like a black box - you click a button, trust the algorithm, and hope for the best. There's no transparency, no participation, and honestly... no fun. ## 💡 The Solution Amida-san brings back the **participatory spirit** of the classic Asian lottery method (known as Ghost Leg, 사다리타기, or 鬼腳圖). Instead of trusting a hidden algorithm: 1. Everyone draws random lines together 2. Full visibility into the process 3. Results are mathematically fair (1:1 correspondence) 4. Way more engaging for virtual events ## 🛠️ Tech Stack (Production-Grade Architecture) **Frontend:** - React 19 + TypeScript with Layered Architecture - Three.js + React Three Fiber for 3D visualization - Redux Toolkit for state management - Material-UI for responsive design - Deployed on Cloudflare Pages **Backend:** - Go with Clean Architecture + Domain-Driven Design - GCP serverless functions for auto-scaling - Firebase Authentication **DevOps & Infrastructure:** - Terraform for Infrastructure as Code - CI/CD pipelines for automated deployment - Version-controlled infrastructure - Global CDN with Cloudflare Pages - Supports 4 languages, 299 participants, real-time collaboration **Why this stack?** As a DevOps engineer working with Kubernetes, Terraform, and cloud infrastructure daily, I designed Amida-san with production-grade practices from day one. Clean Architecture, Domain-Driven Design, and Infrastructure as Code aren't just for enterprise—they make indie projects easier to maintain, scale, and iterate on. No technical debt. No "we'll fix it later." Just good engineering. ## 🎁 Pricing Philosophy The core functionality is **100% free** - because fair decision-making should be accessible to everyone. We offer a premium 3D visualization option (¥1,490 / ~$10) for those who want to make their events extra special. ## 🙏 I'd Love Your Feedback! I'm particularly curious about: - What use cases resonate with you? - Would you use this for your team/community? - What features would make this a must-have tool? Try it out and let me know what you think! 🚀 🔗 https://amida-san.com

Amida-san -Interactive Ghost Leg Lottery

Fair, transparent, and fun team decision-making tool.

Fair, transparent, and fun team decision-making tool.