Serious question, is this just a "how do I get SQLite to work in this scenario?" thing, or is there actually some other benefit to having this sort of data architecture?
This can actually relate to SMTP servers using mbox or maildir formats. Maildir is more resistant to corruption, and doesn't rely (as much) on file locks.
https://serverfault.com/questions/564456/what-are-the-practi...