WPP with amp-script

I understand WPP is not working with AMP now, because AMP will not allow the script tag to run JavaScript, but AMP has its own way to load custom Javascript with amp-script tag:
https://amp.dev/documentation/guides-and-tutorials/develop/custom-javascript/

I’m not a web developer and the explanation are a bit difficult to follow.
But I wonder if it would just be possible to encapsulate some of WPP code in amp-script, or it’s much more complicated than that, and would require a rewrite of the code specific to AMP?