Depending on what you're doing with containers and so forth, you may need a top-level index.ts that imports the project you're working on. And there's a known issue with this setup when using inline code as your AWS lambda or similar. You may need to symbolic link your node_modules and package.json until that's sorted. Onesec I'll get the issue link.

There's a comment in there that shows the directory structure you need. Just remove

yarn.lock

from the picture and it should work for you.