Real-time Chat App

A community platform wanted private messaging its users could actually trust. The goal: real-time delivery with end-to-end encryption, presence that feels alive, and graceful recovery when connections drop.

• ▣End-to-end encryption with client-held keys
• ▣Presence and typing indicators at scale
• ▣Offline message queue with conflict-free sync
• ▣Reconnect storms handled without message loss