SQLite for distribution is neat. FWIW - this is at least partially inspired by your datasette project which we may still try and do something with later on the reporting and data exploration side of things.
Years ago I had a conversation with a friend of a friend that worked at one of the big chip fabs in their lab dept. He mentioned they made very heavy use of sqlite as a file format for distribution. This was back in the "xml all the things" era and it struck me as such a smart breath of fresh air.
I'm honestly surprised it isn't more pervasive.