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Hi! You can use an <https://www.infracost.io/docs/multi_project/config_file|Infracost config file> and specify different `terraform_plan_flags` for each project to point to the different var files.

Something like this might work:
```version: 0.1

projects:
  - path: path/to/networking
    terraform_plan_flags: -var-file=networking.tfvars

  - path: path/to/database
    terraform_plan_flags: -var-file=database.tfvars
    
  - path: path/to/compute
    terraform_plan_flags: -var-file=compute.tfvars```