This project builds you a Typescript runtime for AWS Lambda. With this you can write your Lambda handlers in Typescript without needing to transpile your code first.
See here for more information.
$ cd src
$ ./build.shNote This currently uses a Node 10.15.1 runtime as the actual executable. Modify your build.sh script as you see fit.
Once complete you will have a 'layer.zip' you can upload to your Lambda account. Please refer to these AWS docs for information on how.
I'm offering no direct support, but if you would like to provide feedback, please create an Issue.