TypingMind S3 Sync

Hey Product Hunt! 👋 I built TypingMind S3 Sync because I was worried about losing my AI conversations. TypingMind stores chats locally in the browser, which means they can vanish if you clear data or switch devices. 🔐 **Why I made this:** - I wanted full ownership of my chat data - Cloud sync options felt like giving up privacy - I needed something that "just works" across devices ⚡ **What it does:** - Auto-syncs your chats to YOUR S3 storage (Cloudflare R2, Tigris, AWS, etc.) - Everything is encrypted with AES-256-GCM before leaving your browser - Your encryption key never touches any server - Create named snapshots for easy backup/restore - Smart multi-tab coordination (no sync conflicts) 🛠️ **Tech stack:** - Cloudflare Workers compatible - PBKDF2 key derivation (250k iterations) - Works as a TypingMind extension 💡 **Recommended setup:** Cloudflare R2 gives you free egress and a generous free tier - perfect for this use case. It's 100% open source (MIT). Fork it, self-host it, improve it! Would love your feedback. What features would make this more useful for you? 🙏