How to write isomorphic component with webc?

[dennis-hh]

I'm currently investigating whether webc can help us in our project and came across the following challenge:
I want to write a component that initially displays data coming from an API. This component has a button to display more data (think pagination) when pressed.

I was successful with putting <script webc:setup> in my component – the script handles fetching the data from the API and it works perfectly when I compile that component. However, the compiled result does not include the data fetching script anymore. I don't want to duplicate the whole code in a second script tag, and I haven't found a way for isomorphic javascript in my component. Does webc have functionality for this?