[ActorNightly]

Depends on the project.

Terraform is for when you are doing large projects in company, and want to have additional management features that CDK doesn't have.

On the flip side, for personal projects, you can get away with using boto3 library with the api it provides to create infrastructure, considering infrastructure probably won't change much, and its free. You pretty much just have to write a little wrapper to create the resource if it doesn't exist, then modify its attributes whether its just been created or if it already exists.

CDK, and pure cloudformation, and others are somewhere in between