Make zim with

./zimwriterfs --welcome=index.html --favicon=favicon.png --language=eng --title=test --description=test --creator=XSCE --publisher=XSCE  /root/devel/test_zim test.zim

Create library.xml with

/opt/schoolserver/kiwix/bin/kiwix-manage /library/zims/library.xml add /library/zims/content/test.zim