AI BriefingSelf-Hosted Development Sandbox with Preview URL Support (No Docker, Go, K8s)
Key point
sandboxed, an open-source development environment engine for building AI app builder products, has been released.
Details
sandboxed is an open-source backend engine that supports building AI app builder services like Lovable, Bolt, v0, and Replit. It can be run directly on your own server to provide independent cloud development environments.
Key features are as follows:
- Isolated sandbox creation: Creates independent Linux containers per user, separating file systems and memory to ensure security and isolation.
- AI coding agent execution: Writes code within the sandbox based on prompts. (Comes with OpenCode and Claude Code CLI built in by default)
- Live preview URL provision: Generates shareable links that provide instant access to development servers running inside the sandbox.
For resource efficiency, unused sandboxes switch to sleep mode to free up memory, and are activated immediately when a user accesses the link again. The architecture uses Go, Docker, Traefik, and SQLite, making it very lightweight and simple, and it can be easily operated with a single command without Kubernetes.
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