Alt approaches

- https://github.com/starterstack/sam-expand/tree/main
- Rain https://github.com/aws-cloudformation/rain
- particles https://github.com/SungardAS/condensation https://github.com/SungardAS/aws-services/blob/e4d9cc46eab64e07e03f679b0cab3c89c30f2381/particles-api/package.json