Schema (http://schema.seyman.fr/bugzilla) is a web application that generates HTML documentation for the database schema of any version of Bugzilla, a web-based general-purpose bugtracker and testing tool. It leverages a number of well-known Perl modules (DBIC, Plack, Template, Dancer, ...) to do its job. Long-term goals are making Schema generic enough to cover the database schema of any application (not just Bugzilla) and show schema changes between any two versions.