Could be integral part of their CodeStar / Cloud IDE push. Components with AWS specific functionality can then be developed and sold through a marketplace.

For those making single-purpose, ad-revenue backed projects. Quite possible there is more to gain in selling say a dating app interface, than the app itself ;)

AWS re:invent conference starts next week so expect details then. As well as a Kubernetes engine. Golang support for Lambda Functions. And much more...