Blog — page 38 of 38
Firecracker vs Docker: which one runs untrusted code?
They're not competitors — Docker builds images, Firecracker runs VMs. But for the one question that matters (can it run untrusted code?), the answer differs sharply.
How to run untrusted (and AI-generated) code safely
Your agent just wrote a shell command. Before you run it: here's what can go wrong, which isolation actually holds, and a pattern for executing arbitrary code without betting your infrastructure.
Secure code execution for AI agents: isolation, ephemerality, and network control
Your agent doesn't just talk — it runs code. Here's the boundary that makes that safe: hardware isolation, a fresh disposable environment per task, and locked-down network and secrets.
Snapshots and Forks: Copy-on-Write for Running Machines
A snapshot freezes a running microVM's RAM and device state to disk; a fork clones that frozen machine with copy-on-write so you can branch a live environment — and your agent's mid-task state — in around 400ms.
How to Give Your AI Agent a Sandbox (With Code)
Wire a microVM sandbox as a run_code tool so your LLM agent can run model-written code safely — the loop, the tool schema, and cleanup, with runnable Python.
PandaStack vs E2B: Choosing an AI Sandbox Provider
A fair, technical breakdown of PandaStack and E2B across the dimensions that actually matter when you're choosing a Firecracker sandbox provider.
PandaStack vs Modal: which for AI code execution?
Modal runs serverless functions you own; PandaStack runs untrusted agent code in per-task Firecracker microVMs. An honest, fact-based comparison.
PandaStack vs Daytona for AI Sandboxes
Daytona is a dev-environment platform; PandaStack is a Firecracker microVM platform with managed Postgres and git app hosting. An honest, factual comparison.
Build a Code Interpreter with a Python Sandbox
Build a ChatGPT-style code interpreter that runs untrusted Python in its own microVM — capture stdout, read back plots, persist state across cells.
How to run Firecracker on a Mac (Apple Silicon)
Firecracker is Linux/KVM-only, so it can't run natively on macOS. The fix: a lightweight Linux VM with Apple's nested virtualization. Here are the exact, working steps.