vpcctl
vpcctl is a command-line tool that builds virtual private cloud networks on bare linux — no cloud provider needed. it uses network namespaces for isolation, linux bridges as virtual switches, veth pairs as cables, and iptables for nat and firewalling. supports multi-tier vpc topologies with public and private subnets, vpc peering, and iptables-based firewall policies. written in python with uv for package management.