Hi Jonathan,
Access to our own projects is usually restricted to/by our customers. However, here are two interesting and recent projects that I got aware of:
All notes of Niklas Luhmann have been made available to the public, and search is powered by BaseX:
https://niklas-luhmann-archiv.de/bestand/zettelkasten/suche https://niklas-luhmann-archiv.de/projekt/dokumentation
BaseX is also used for a comprehensive online database on Performing Arts:
https://www.performing-arts.eu/ https://wiki.dnb.de/download/attachments/132748423/2018-04-11_KIMWS18_Beck-F...
All the best, Christian