Hello Esteban, The idea of Pier-FilesystemPersistence is to persist the Pier structure objects as a set of xml files in a directory tree. It is not yet ready to be used as a persistence mechanism. The persistence logic for some commands still has to be added. The package can be used to export and import a Pier website. Jan. On Sat, Jan 22, 2011 at 1:30 PM, Esteban Lorenzano <estebanlm(a)gmail.com>wrote;wrote: