Available storage solutions

I did not see any API for storage embedded with TOAST. I see that local storage is used a lot but I would need to store more than 5MB (>100MB) and those data need to be indexed.
I was thinking to IndexedDB but I didn't see any mention of that in this repo.

What are the storage solutions supported by the Orsay, Tyzen and WebOS platforms that I could use with TOAST?