I think the bigger issue with offline storage is how complicated it is to do cross platform indices. FFx only supports IndexedDB and Safari only SQL. There are

I think the bigger issue with offline storage is how complicated it is to do cross platform indices. FFx only supports IndexedDB and Safari only SQL. There are abstraction layers, but they're also a bit difficult to get working correctly. K/V storage is nice, but once you have more than a few thousand objects that you want to index, it's a little bit painful.