Best practice for excluding specific resources in Terraform/Terragrunt modules

[yannik207]

Hey community,
I'm looking for best practices on how to exclude specific resources from a shared Terraform module in a clean and maintainable way.
Use case:
In our setup, data scientists use a workbench that's defined in a shared Terraform module. However, certain resources differ between dev and prod environments. I want to exclude specific resources (e.g., an aws_s3_bucket) from being created in some environments.
I’m aware of the count workaround, like this:

resource "aws_s3_bucket" "example" {
  count  = var.enable_s3 ? 1 : 0
  bucket = "my-example-bucket"
}

However, I find this approach somewhat clunky, especially when using Terragrunt to keep the code DRY. The need to pass or default the variable in multiple places seems to go against that principle.
Question:
Is there a more Terragrunt-native way to handle conditional resource inclusion that avoids having to sprinkle logic or variables across all environments?

Appreciate any tips or shared experiences!