Mocks and emulators end at the laptop: you build something locally, then hand-write the infrastructure-as-code to recreate it for real. That translation step is where drift and bugs creep in. A digital twin can close the loop — the environment you built locally becomes the code you ship.
The round trip
You develop against a local cloud (one endpoint, standard SDKs), then export the running
stack to Terraform HCL and terraform apply it to a real AWS,
GCP or Azure account. The buckets, tables, queues and policies you created locally come out
as declarative resources.
# in Vyomi: export a space to HCL (or use the console's Export button)
vyomi export terraform --space demo > main.tf
# then, against real cloud:
terraform init && terraform applyWhy this beats hand-writing HCL
- No translation drift — the export reflects what actually ran, not your memory of it.
- A real diff — check the generated HCL into git and code-review your infrastructure like any other change.
- Multi-cloud in one pass — a stack that spans AWS and GCP exports both, because the twin already ran both.
Test locally, ship the same thing
This is the difference between a test fixture and a faithful replica: the twin you proved out offline is the stack you promote. Pair it with offline testing in CI and the path from first commit to production is one environment the whole way.
See how the digital-twin approach compares to AWS-only tools on the Vyomi vs LocalStack page.