Any Widget examples that use TypeScript and Nodejs?

Any Application or widget examples that use TypeScript and Nodejs?

I have a project coming up, that depends on an API, that will be used as an integrated application with Community.

To customize widgets, requires the use of typescript, which is compiled into javascript, and that is then loaded into the final product.  The only way I can see how to do this is to build out the application separately, then insert the finish components into the application. the problem is many of the components need to use Community API's.  

I can't really see how this is going to work yet.