happy

Key points:

• Product name: Happy Coder (Happy), works with Claude Code.
• Main capabilities: run multiple Claude Code instances in parallel, seamless cross-device sessions, CLI-first, real-time voice-to-action, intelligent push notifications, end-to-end encryption, open-source (MIT).
• Three-part architecture: CLI program (happy) starts locally and encrypts sessions; Mobile App displays and controls on the phone; Relay Server forwards encrypted data but cannot read it.
• Installation and entrypoint: npm i -g happy-coder && happy; Web: https://app.happy.engineering/; GitHub: https://github.com/slopus/happy; Google Play and App Store clients available.
• Users and community: The page lists tweets and screenshots as testimonials and feedback, emphasizing an easy-to-contribute codebase and an active community.