There seem to be some misunderstandings in this:
> If your application fully manages this file, the assumption must be made that your application is the sole owner of this file, and nobody else will tinker with it while you are writing data to it.
Kind of, but sqlite does locking for you, so you don't have to do anything to ensure your process is the only one writing to the db file.
> [The WAL] allows multiple parallel writes to take place and get enqueued into the WAL.
The WAL doesn't allow multiple parallel writes. It just allows reads to be concurrent with a single write transaction.
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