@white-oxygen-65730 I'm curious, what provider are you looking to build? Is it an existing Terraform provider, or something built from scratch? If the former, there is also information in the README over here: https://github.com/pulumi/pulumi-terraform#adapting-a-new-terraform-provider. If the latter, it amounts to implementing this gRPC interface: https://github.com/pulumi/pulumi/blob/master/sdk/proto/provider.proto We definitely want to do better here over time. I filed https://github.com/pulumi/docs/issues/595 to track documenting this more thoroughly. In the meantime, we're definitely happy to help you through the process.