Show HN: Clone, a small Rust VMM, forks VMs in under 20ms via CoW

Category: infrastructure

Tags: virtualization, rust, kvm, vmm, high-density, security

Score: 8.0/10 (Innovation: 8, Technical: 9, Documentation: 8, Utility: 7)

Clone is a lightweight KVM-based VMM written in Rust that enables rapid forking of VM instances via copy-on-write memory mapping, achieving sub-20ms fork times. It's particularly interesting because it combines VM-level hardware isolation with container-like density and startup speed, targeting secure multi-tenant shell hosting and high-density ephemeral workloads.

Target audience: devops, cloud engineers, platform engineers, security engineers

Repository: https://github.com/unixshells/clone · Rust · MIT · 234 stars

View on Hacker News