Download of BiblioteQ 10.0 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. BiblioteQ for Mac is categorized as Developer Tools. This free software for Mac OS X was originally produced by Two Red Frogs Productions. We recommend checking the downloaded files with any free antivirus.
From the developer:
BiblioteQ strives to be a complete and thorough library management suite. The application is supported on numerous platforms, including FreeBSD, Linux, OS X, Solaris, and Windows. Installers are available for OS X, Unix, and Windows.
As for database connectivity, BiblioteQ supports both PostgreSQL and SQLite database engines.
You may want to check out more software for Mac, such as OpdiTracker, Witango 6 or WitangoStudio, which might be related to BiblioteQ.