Terrarium: Open-Source Sandbox for Agentic Environments with Time Machine Rewind

Running multiple AI agents in production often leads to security headaches and configuration drift. One developer built Terrarium, an open-source sandbox that provides isolated environments for agents with a safety net: a time machine that lets you rewind container state when things go wrong.

Key Features

• Isolated "worlds" — agents operate in separate containers with security hardening out of the box.
• Reverse-proxy management — easy routing between worlds and external services via a built-in GUI.
• Time machine — if an agent corrupts state, simply rewind the container to a previous snapshot.
• Runs on any VPS or cloud with an attached disk — no special infrastructure required.

Quick Start

Clone the repo and launch:

git clone https://github.com/terion-name/terrarium
cd terrarium
make run

Then access the management GUI at http://localhost:8080 to create worlds, configure routing, and set snapshot schedules.

Who It's For

Developers running multiple agentic workflows who need per-agent isolation, audit trails, and the ability to roll back from catastrophic agent decisions without rebuilding infrastructure.