This is interesting, do you plan to support more rich dynamic templates?
I work with a dev team that produces a few different flavors of document where a page might include details of optional product features depending on what the customer bought. Today they use HTML to PDF which is sort of painful and made more painful due to the regulated industry they are in which requires pixel perfection. Some ability to assemble a multi-page document where the pages vary based on config might be an interesting solve for that. I’ll admit I’m unsure how common a problem this is.