Perl module for object persistence

 KiokuDB is a Moose based frontend to various data stores, somewhere in
 between Tangram and Pixie.
 .
 Its purpose is to provide persistence for "regular" objects with as little
 effort as possible, without sacrificing control over how persistence is
 actually done, especially for harder to serialize objects.
 .
 KiokuDB is also non-invasive: it does not use ties, AUTOLOAD, proxy objects,
 sv_magic or any other type of trickery.
 .
 Many features important for proper Perl space semantics are supported,
 including shared data, circular structures, weak references, tied structures,
 etc.