File list of package lighttpd-modules-dbi in buster-backports of architecture armhf
/usr/lib/lighttpd/mod_authn_dbi.so /usr/lib/lighttpd/mod_vhostdb_dbi.so /usr/share/doc/lighttpd-modules-dbi
/usr/lib/lighttpd/mod_authn_dbi.so /usr/lib/lighttpd/mod_vhostdb_dbi.so /usr/share/doc/lighttpd-modules-dbi