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I have done this with automation API to create a common VPC and resource group that is shared across stacks. Here's the

EnsureNetwork

function that makes sure the resources are available and deploys them if not: https://github.com/EvanBoyle/automation-api-examples/blob/main/vm_manager_azure/infra/deploy/deploy.go#L118-L178

You can do this just in typescript too

let vpc = undefined

try {
  vpc = aws.ec2.getVPc()
} catch {
  vpc = new aws.ec2.vpc
}