Knapsack: a flexible, light weight, open source persistence library
This is based on Arthur Lemmens's Rucksack with some enhancements.
To compile and load Knapsack and make sure that the basics are working:
Make sure you have ASDF (Another System Definition Facility) loaded.
(asdf:oos 'asdf:load-op :knapsack-test)
The tutorial by Brad Beveridge (in doc/rucksack-tutorial.lisp) is a good next step.