Feature Request: Add Deutsche Nationalbibliothek (DNB.de) as metadata provider

[Kachelkaiser]

I want raise a feature request for adding a new metadata search source.

For german books the Deutsche Nationalbibliothek (German national library) could be a good source.

Here are some information about searching in their catalog

https://www.dnb.de/EN/Professionell/Metadatendienste/Datenbezug/SRU/sru_node.html
https://github.com/deutsche-nationalbibliothek/dnblab
https://dnb-sru-demo.streamlit.app/