How to use Custom UI for a Custom Field Module render view or any workarounds?

Hi there, I was wondering if it is at all possible to use Forge Custom UI to render the view of a custom field module? I know it’s possible when on the edit modal and that it says in the docs it only supports UI Kit but has anyone come across some work arounds to not using UI Kit? For example I see the Awesome Custom Fields app has figured something out, is this just a connect app? Thanks