From what I can tell, this creates an SQLite instance each time it's executed, and creates it in memory unless told not to do so. So I'd guess it wouldn't scale well. Still really neat though!
Even then, it should scale reasonable well if one added a repl, and kept the database in memory. Probably would be fine then up until at least a couple gigabytes, depending on how well sqlite handles in-memory tables (probably very well).
