We provide a downloadable offline version of the site that syncs with the main web site. Production runs on PostgreSQL and the offline version uses SQLite. Ot

We provide a downloadable offline version of the site that syncs with the main web site. Production runs on PostgreSQL and the offline version uses SQLite. Other than a very thin shim layer around database migrations all the code is the same and uses NHibernate The unit tests run 50/50 against PostgreSQL instances and SQLite Occasionally I have to stop myself from trying some cool new PostgreSQL specific feature. But generally everything 'just works'