Start here

Welcome
Quick Start
How It Works
Security & Encryption
FAQ

Guides

Best Practices
Push Notifications
Self-Hosting

Features

All Features
Real-Time Sync
Parallel Tasks
Voice Coding

Use cases

The Hemingway Technique

Comparisons

Alternatives
Happy vs. a Terminal App

Releases

Release Notes
Known Issues

Resources

Distribution Resources

Start here

Welcome
Quick Start
How It Works
Security & Encryption
FAQ

Guides

Best Practices
Push Notifications
Self-Hosting

Features

All Features
Real-Time Sync
Parallel Tasks
Voice Coding

Use cases

The Hemingway Technique

Comparisons

Alternatives
Happy vs. a Terminal App

Releases

Release Notes
Known Issues

Resources

Distribution Resources

Happy is now a desktop app. The original Happy CLI (happy on npm, formerly happy-coder) is in maintenance mode: it keeps working and still gets critical fixes, but new features ship in the Happy desktop app. The Happy mobile app works with both. These docs describe the CLI; for Happy today, an open-source harness for orchestrating Claude, Codex, Grok, Gemini, and more, start at Welcome.

Parallel Tasks

Karl is still working on this.

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We build interfaces around agents: how you control them, how they run, and how teams share context with them.@Ex3NDR and @bra1n_dump

Docs Desktop app Phone app Privacy Terms Original Happy CLI

HappyEngineering

Orchestrate Claude, Codex, Grok, Gemini and more in one app

Parallel Tasks#

Parallel Tasks