Deploy
The Deploy Module implements the Terraform Cloud Development Kit underneath. It scans existing key configs generated by the key module and programmatically constructs Terraform providers and resources accordingly.
This gives you the flexibility to use KMS on any cloud provider and custom Vault of your choice, such as Hashicorp Vault, without additional implementation, as these KMS providers all come with Terraform providers already implemented.
Terraform allows you to deploy, track, and audit deployment state, integrated into most CI/CD pipelines very easily.