Safe Cloud Code Execution with Snapshots (Python Pre-Installed, Zero Wait)

Deno Sandbox lets you spin up isolated cloud VMs programmatically. With the snapshots feature, you can pre-install an entire environment once and boot it without waiting for installs every time after. In this video I show you the snapshot workflow end to end: → Create a cloud volume and boot a sandbox → Install Python, and required packages and build tools → Snapshot the volume — your environment is now frozen and reusable → Boot fresh sandboxes from that snapshot instantly, with everything pre-installed As a demo we run a live interactive Mandelbrot fractal explorer. An HTTP server deployed entirely inside the sandbox, the code never touching the host machine. This is the foundation for safe execution of AI-generated code, user-submitted scripts, or any workload you want fully isolated and reproducible. Chapters: 0:00 – Introduction 0:50 – Initialize a basic Deno project 1:40 – Setting up a Snapshot 3:25 – Booting from a Snapshot Resources: 📂 Code: https://docs.deno.com/examples/snapshot_python_tutorial 🚀 Deno Deploy: https://console.deno.com 📦 Deno Sandbox SDK: https://jsr.io/@deno/sandbox