Hi,
Sorry for digging this up, but I think the information might be useful to more people.
following your advice andrkac i stopped at the last point. I just can't start the service. I get Segmentation fault error. Thus, adding it to autostart won't do anything.
The same happens when I run with ./zabbix_agentd -c /storage/.kodi/userdata/zabbix_agent/conf/zabbix_agentd.conf but it's logical.