- Runtime API OpenAPI spec: https://docs.aws.amazon.com/lambda/latest/dg/samples/runtime-api.zip
- Concurrent Lambda executions: https://docs.aws.amazon.com/lambda/latest/dg/concurrent-executions.html
- AWS Cloud9: https://aws.amazon.com/cloud9/
- Useful custom runtimes and layers: https://github.com/mthenw/awesome-layers
- AWS X-Ray developer guide: https://docs.aws.amazon.com/xray/latest/devguide/aws-xray.html