git clone 'https://github.com/ilitirit/manardb.git'
It frees one from the garbage collector but stays within MOP.
See its homepage at MSI
(asdf:operate 'asdf:load-op 'manardb-test) (manardb.test:test-all-manardb)
<test-run: 24 tests, 3528843 assertions, 0 failures (0 expected) in 30.306 sec>
By MSI http://www.msi.co.jp
Thanks to Pascal Costanza for MOP conformance and other advice.
This project has found bugs in all Lisp implementations tested (Allegro, Lispworks, SBCL, and ClozureCL). Prize goes to SBCL for correctness as the bug (slot-value didn't work) was already fixed in a newer version.