During the month, this developer enhanced the opentofu/terraform-provider-vault repository by implementing Time-To-Live (TTL) support for the GCP secret impersonated account resource. Using Go and Terraform, they introduced a configurable TTL field that allows users to define the default validity period for service principals within the GCP secret backend. This addition enables more precise control over credential lifecycles, supporting predictable rotations and improving overall security management. The work focused on backend development and integrated seamlessly with existing Vault workflows, providing a clear commit history and documentation in Markdown to ensure maintainability and transparency for future contributors and users.