https://git.koha-community.org/Koha-community/Koha/src/branch/master/etc/README.txt It describes some files that don't exist: * koha-production.xml * koha-testing.xml These are the production and testing configurations for zebrasrv and for Koha. The first part of each file specifies Zebra server names, indexing configuration files, and query language configurations. Koha configuration directives follow.