The foundational guide to infrastructure as code in 2026 — the declarative model and why the state file is the hard part, the Terraform BUSL license change and the OpenTofu fork, real configuration and workflow, remote state and locking after the DynamoDB era, modules, the broader landscape from Pulumi to Crossplane, and the failure modes nobody warns you about.
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Infrastructure as Code in 2026: Terraform, OpenTofu, and the State You Have to Manage