Best process to take unstructured FM books and get them into html?

Framemaker 2015

Unstructured

Okay... I'm looking through posts (and other online sources) to figure out what I need to do, but am hoping that getting info straight from the horse's mouth might work best (that is, save me from doing lots of things incorrectly).

I have several Framemaker books, each containing multiple documents.

Some of these docs books use conditional text to generate from 2-4 variants.

We've been pretty faithful at using our defined paragraph and character styles throughout.

We've always generated to .pdf, but for these docs, we want to get them onto our .io site to be consumed online rather than as pdf.

So... what is the recommended process for doing this, for short-term gain (for current batch of documents), and long-term (for new documents yet to be created)?

Can I accomplish this with unstructured Frame, or do I have to convert into structured (which I haven't used)?

(Note: I didn't want to jump down a process and get to a point where I have to shout 'HELP! I'M DROWNING!' --- I'd rather get the proper life preserver in place, first 🙂

Thanks in advance for any insight 'you' can share, and if this is out-of-bounds topic-wise, I apologize.