Chalice deployments within VPCs in multiple accounts

Hi. I have a usecase where I want to deploy my chalice app in different accounts and different regions within an account.
For one account / region, specifying subnet-ids and security-group ids works great but hardcoding these values in a multi-account / multi-region setup isn't scalable at all.

Looking for suggestion / attempted solutions, workarounds if somebody has experienced this issue already.

Thanks.

The issue names no files, tests, or entry points. Begin by tracing how Chalice handles subnet and security-group IDs for VPC deployments, then compare the configuration needs across accounts and regions. The issue has no concrete acceptance criteria, so a defined approach and validation plan would be needed before implementation.

Written by the indexing model from the issue text.