The SAR provides serverless applications. It could provide the abap-runtime layer and a ABAP template for the lambda function.
https://aws.amazon.com/serverless/serverlessrepo/?nc=sn&loc=0
Prerequisite:
AWS Serverless Application Model (SAM)
https://aws.amazon.com/serverless/sam/
Maybe the SAM template could also combine the Node.js layer and and the abap-runtime layer in on template.