CodeSandbox: Cloning Dev Environments in Under 2 Seconds
2025-04-11
CodeSandbox achieves the remarkable feat of cloning development environments in under two seconds using Firecracker microVMs and memory snapshots. The article details how they leverage Firecracker's speed for VM instantiation, and memory snapshotting combined with copy-on-write (CoW) to drastically reduce snapshot creation and cloning times. This innovation not only improves the CodeSandbox user experience but also offers new approaches for cloud IDEs and microservice deployments.