Local-first development containers with remote sync and multi-machine support.

• Disk bloat: node_modules, virtual envs, and build artifacts consume gigabytes of local storage
• Latency: Remote dev containers introduce network lag that makes tools like Claude Code frustrating
• Multi-machine chaos: Switching between machines means manual syncing or risking conflicts

SkyBox stores your code on a remote server while running containers locally. You get:

• Zero latency - Containers run on your machine
• Minimal disk usage - Code lives on the server, synced on-demand
• Safe multi-machine workflow - Lock system prevents conflicts when switching computers
• Offline capable - Work locally, changes sync when you're back online

┌──────────────────┐        ┌──────────────────┐
│  Your Machine    │        │  Remote Server   │
│                  │ Mutagen│                  │
│  ~/.skybox/      │◄──────►│  ~/code/         │
│   projects/      │  sync  │   myproject/     │
│    myproject/    │        │                  │
│                  │        │  Lock files:     │
│  Docker          │        │  .skybox-locks/  │
│   Container      │        │                  │
└──────────────────┘        └──────────────────┘

• Docker
• DevContainer CLI
• SSH access to a remote server

Mutagen is bundled and extracted automatically during setup.

For installation, quick start, commands, and configuration:

Please visit the documentation

If you want to contribute to SkyBox, start here:

• Contributing Guide
• Code of Conduct
• Security Policy
• Support Guidelines
• GitHub Discussions

Apache License 2.0