Superb solution folks. First time I have seen AI being used seamlessly end-to-end, from idea & notes generation > presentation > PDF/PPTX > website. The fact that the exported PPTX is fully editable is fantastic. Most time the PPTX must be used in a corporate environment, so editing, adding animations, and coproprate themes & colors is essential.
I think the 'spotlight' feature when presenting worked well, a future feature might be to (a) make this the default animation (Click Build) in the exported PPTX animation and (b), add more animation options to the "spotlight' function within Gamma itself.