What would be the lift to apply the Streamfield approach to regular fields?

[easherma-truth]

I'm still digging into understanding the source code overall, and I've been wondering how possible it would be to add a personalised element to non-Streamfields? Is there a smart way that could work field by field, say for an Orderable? Otherwise I could see at the page level handling which fields get passed into context to be rendered, but that seems redundant with what this library does.