This is a reference environment on DigitalOcean using OpenTofu, Spacelift, Doppler, and Twingate. It builds a VPC where no droplets have public inbound ports, replacing traditional VPNs and bastion hosts with direct zero-trust access. The accompanying wiki contains step-by-step lessons, diagrams, and exercises designed to take a power user from local hardware to locked-down cloud infrastructure.
It is worth your time if you want to understand modern infrastructure-as-code and perimeterless networking without relying on enterprise budgets. However, it requires paying for your own cloud resources and assumes baseline technical literacy like git and basic networking. Skip it if you just want a quick click-ops deployment or a managed platform-as-a-service.
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