[audreyt]

> For the scale of a Sandstorm app, it makes tons of sense to switch to sqlite, which mostly solves this problem. :)

Case in point: EtherCalc, which usually runs with Redis storage, deliberately uses the fallback "toy" JSON file storage with Sandstorm, which saves 1MB RAM per document instance and makes migration easier.

This works because there's only a few concurrent writers per document at most, instead of the multi-tenant scenario where there's thousands of concurrent writers at any given time.