Lasse Gaardsholt developed a feature for the opentofu/terraform-provider-vault repository that introduced Time-To-Live (TTL) support for the GCP secret impersonated account resource. By adding a configurable TTL field, Lasse enabled users to define default credential lifetimes for service principals, addressing the need for predictable credential rotation and enhanced security within the GCP secret backend. The work involved backend development using Go and Terraform, with a focus on integrating Vault’s secret management capabilities. Although the contribution was limited to a single feature over one month, it demonstrated a clear understanding of secure credential lifecycle management and infrastructure-as-code best practices.