I've used Berkeley DB for decades, in many projects, many time having to have a yelling match with other people who wanted to use one of the large spaghetti pla

I've used Berkeley DB for decades, in many projects, many time having to have a yelling match with other people who wanted to use one of the large spaghetti plate "database".. this was before the "noSQL" trend, and even after. How many projects /need/ network access etc, in a LOT of cases you just want a file backed, very quick library and that does the job. For more complicated setups, sqlite also works wonder.