Learn essential strategies for creating maintainable and extensible infrastructure-as-code modules in this conference talk from Code BEAM America 2024. Explore critical aspects of IaC development, including the challenges of module registries, resource lifecycle management, and environment parity across different scales. Discover techniques for developing use-case-specific modules and optimizing input/output designs to reduce developer workload while preserving expert knowledge. Through practical examples using OpenTofu/Terraform, gain insights applicable across various IaC tools like Pulumi and Crossplane, enabling better infrastructure management and maintenance practices.