Request an example of React/Angular buildable libraries

[alexander-r-jaimy]

Good afternoon,
I'd like to enable the power of buildable libraries in my project.
Unfortunately I don't quite understand how to polyfill? missing imports.

I've got errors similar to:

Could an example be provided of how to build libraries with react presentational components?

[alexander-r-jaimy]

I've figured out that I need to indicate peerDependencies.

Now I wonder why only react-is is needed and should I worry about a bundler "guessing" a wrong library?

Could you tell me what's the best practice here?