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Public IP

Every VM gets a dedicated public IPv4. Shown in machine0 get and machine0 ls. Suspended VMs get a new IP on resume.

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HTTPS proxy

Every VM gets authenticated HTTPS at https://<name>.mac0.io, proxying to port 80. No DNS or TLS setup. Renaming a VM updates the endpoint.

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Firewall

All VMs run ufw with ports 22, 80, and 443 open. To open more: 
machine0 ssh my-vm "sudo ufw allow 8080/tcp"